@egjs/view3d/dist/view3d.esm.js.map

{"version":3,"file":"view3d.esm.js","sources":["../src/core/EventEmitter.ts","../src/core/Renderer.ts","../src/consts/internal.ts","../src/View3DError.ts","../src/consts/error.ts","../src/utils.ts","../src/core/Scene.ts","../src/core/camera/Controller.ts","../src/core/camera/Pose.ts","../src/consts/easing.ts","../src/consts/default.ts","../src/controls/Motion.ts","../src/controls/AnimationControl.ts","../src/core/camera/Camera.ts","../src/core/ModelAnimator.ts","../src/core/XRManager.ts","../src/consts/event.ts","../src/View3D.ts","../src/core/Model.ts","../src/controls/AutoControl.ts","../src/consts/css.ts","../src/controls/RotateControl.ts","../src/controls/TranslateControl.ts","../src/controls/DistanceControl.ts","../src/controls/OrbitControl.ts","../src/loaders/DracoLoader.ts","../src/environments/AutoDirectionalLight.ts","../src/environments/ShadowPlane.ts","../src/loaders/GLTFLoader.ts","../src/loaders/TextureLoader.ts","../src/consts/xr.ts","../src/xr/features/DOMOverlay.ts","../src/xr/WebARSession.ts","../src/xr/features/HitTest.ts","../src/core/Animation.ts","../src/controls/ar/ui/RotationIndicator.ts","../src/controls/ar/common/ARSwirlControl.ts","../src/controls/ar/floor/ARFloorTranslateControl.ts","../src/controls/ar/ui/ScaleUI.ts","../src/controls/ar/common/ARScaleControl.ts","../src/controls/ar/ui/FloorIndicator.ts","../src/consts/touch.ts","../src/controls/ar/common/DeadzoneChecker.ts","../src/controls/ar/floor/ARFloorControl.ts","../src/xr/FloorARSession.ts","../src/controls/ar/ui/ArrowIndicator.ts","../src/controls/ar/wall/ARWallTranslateControl.ts","../src/controls/ar/wall/ARWallControl.ts","../src/xr/WallARSession.ts","../src/controls/ar/common/ARSwipeControl.ts","../src/controls/ar/hover/ARHoverRotateControl.ts","../src/controls/ar/hover/ARHoverTranslateControl.ts","../src/controls/ar/hover/ARHoverControl.ts","../src/xr/HoverARSession.ts","../src/consts/browser.ts","../src/xr/SceneViewerSession.ts","../src/xr/QuickLookSession.ts","../src/extra/TextureModel.ts"],"sourcesContent":["/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport { AnyFunction } from \"~/types/external\";\n\ntype NoArguments = undefined | null | void | never;\ntype EventMap = Record<string, any>;\ntype EventKey<T extends EventMap> = string & keyof T;\ntype EventCallback<T extends EventMap, K extends EventKey<T>>\n  = T[K] extends NoArguments\n    ? () => any\n    : T[K] extends AnyFunction\n      ? T[K]\n      : (event: T[K]) => any;\n\nclass EventEmitter<T extends EventMap> {\n  private _listenerMap: {\n    [keys: string]: EventCallback<T, EventKey<T>>[],\n  };\n\n  constructor() {\n    this._listenerMap = {};\n  }\n\n  public on<K extends EventKey<T>>(eventName: K, callback: EventCallback<T, K>): this {\n    const listenerMap = this._listenerMap;\n    const listeners = listenerMap[eventName];\n\n    if (listeners && listeners.indexOf(callback) < 0) {\n      listeners.push(callback);\n    } else {\n      listenerMap[eventName] = [callback];\n    }\n    return this;\n  }\n\n  public once<K extends EventKey<T>>(eventName: K, callback: EventCallback<T, K>): this {\n    const listenerMap = this._listenerMap;\n    const listeners = listenerMap[eventName];\n\n    const onceCallback = (...params: any[]) => {\n      callback(params);\n      this.off(eventName, onceCallback as any);\n    };\n\n    if (listeners && listeners.indexOf(callback) < 0) {\n      listeners.push(callback);\n    } else {\n      listenerMap[eventName] = [callback];\n    }\n    return this;\n  }\n\n  public off<K extends EventKey<T>>(eventName?: K, callback?: EventCallback<T, K>): this {\n    const listenerMap = this._listenerMap;\n\n    if (!eventName) {\n      this._listenerMap = {};\n      return this;\n    }\n\n    if (!callback) {\n      delete listenerMap[eventName];\n      return this;\n    }\n\n    const listeners = listenerMap[eventName];\n\n    if (listeners) {\n      const callbackIdx = listeners.indexOf(callback);\n      if (callbackIdx >= 0) {\n        listeners.splice(callbackIdx, 1);\n      }\n    }\n\n    return this;\n  }\n\n  public emit<K extends EventKey<T>>(\n    eventName: K,\n    ...event: T[K] extends NoArguments ? void[] : T[K] extends AnyFunction ? Parameters<T[K]> : [T[K]]\n  ): this {\n    const listeners = this._listenerMap[eventName];\n\n    if (listeners) {\n      listeners.forEach(callback => {\n        callback(...event);\n      });\n    }\n\n    return this;\n  }\n}\n\nexport default EventEmitter;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport Scene from \"./Scene\";\nimport Camera from \"./camera/Camera\";\n\n/**\n * Renderer that renders View3D's Scene\n * @category Core\n */\nclass Renderer {\n  private _renderer: THREE.WebGLRenderer;\n  private _canvas: HTMLCanvasElement;\n  private _clock: THREE.Clock;\n\n  /**\n   * {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement HTMLCanvasElement} given when creating View3D instance\n   * @type HTMLCanvasElement\n   * @readonly\n   */\n  public get canvas() { return this._canvas; }\n  /**\n   * Current {@link https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext WebGLRenderingContext}\n   * @type WebGLRenderingContext\n   * @readonly\n   */\n  public get context() { return this._renderer.context; }\n  /**\n   * The width and height of the renderer's output canvas\n   * @see https://threejs.org/docs/#api/en/math/Vector2\n   * @type THREE.Vector2\n   */\n  public get size() { return this._renderer.getSize(new THREE.Vector2()); }\n  /**\n   * Three.js {@link https://threejs.org/docs/#api/en/renderers/WebGLRenderer WebGLRenderer} instance\n   * @type THREE.WebGLRenderer\n   * @readonly\n   */\n  public get threeRenderer() { return this._renderer; }\n\n  public set size(val: THREE.Vector2) {\n    this._renderer.setSize(val.x, val.y, false);\n  }\n\n  /**\n   * Create new Renderer instance\n   * @param canvas \\<canvas\\> element to render 3d model\n   */\n  constructor(canvas: HTMLCanvasElement) {\n    this._canvas = canvas;\n\n    this._renderer = new THREE.WebGLRenderer({\n      canvas: this._canvas,\n      alpha: true,\n      antialias: true,\n      preserveDrawingBuffer: true,\n    });\n\n    this._renderer.xr.enabled = true;\n\n    this._renderer.outputEncoding = THREE.sRGBEncoding;\n\n    this._clock = new THREE.Clock(false);\n    this.enableShadow();\n  }\n\n  /**\n   * Resize the renderer based on current canvas width / height\n   * @returns {void} Nothing\n   */\n  public resize(): void {\n    const renderer = this._renderer;\n    const canvas = this._canvas;\n\n    if (renderer.xr.isPresenting) return;\n\n    renderer.setPixelRatio(window.devicePixelRatio);\n    renderer.setSize(canvas.offsetWidth, canvas.offsetHeight, false);\n  }\n\n  /**\n   * Render a scene using a camera.\n   * @see https://threejs.org/docs/#api/en/renderers/WebGLRenderer.render\n   * @param scene {@link Scene} to render\n   * @param camera {@link Camera} to render\n   */\n  public render(scene: Scene, camera: Camera): void {\n    this._renderer.render(scene.root, camera.threeCamera);\n  }\n\n  public setAnimationLoop(callback: (delta: number, frame?: any) => void): void {\n    this._clock.start();\n    this._renderer.setAnimationLoop((timestamp: number, frame: any) => {\n      const delta = this._clock.getDelta();\n      callback(delta, frame);\n    });\n  }\n\n  public stopAnimationLoop(): void {\n    this._clock.stop();\n    // See https://threejs.org/docs/#api/en/renderers/WebGLRenderer.setAnimationLoop\n    this._renderer.setAnimationLoop(null);\n  }\n\n  /**\n   * Enable shadow map\n   */\n  public enableShadow() {\n    const threeRenderer = this._renderer;\n\n    threeRenderer.shadowMap.enabled = true;\n    threeRenderer.shadowMap.type = THREE.PCFSoftShadowMap;\n  }\n\n  /**\n   * Disable shadow map\n   */\n  public disableShadow() {\n    const threeRenderer = this._renderer;\n\n    threeRenderer.shadowMap.enabled = false;\n  }\n}\n\nexport default Renderer;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\n// Constants that used internally\n\n// Texture map names that used in THREE#MeshStandardMaterial\nexport const STANDARD_MAPS = [\n  \"alphaMap\",\n  \"aoMap\",\n  \"bumpMap\",\n  \"displacementMap\",\n  \"emissiveMap\",\n  \"envMap\",\n  \"lightMap\",\n  \"map\",\n  \"metalnessMap\",\n  \"normalMap\",\n  \"roughnessMap\",\n];\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nclass View3DError extends Error {\n  constructor(\n    public message: string,\n    public code: number) {\n    super(message);\n    Object.setPrototypeOf(this, View3DError.prototype);\n    this.name = \"View3DError\";\n  }\n}\n\nexport default View3DError;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\n/**\n * Error codes of {@link View3DError}\n * @name ERROR_CODES\n * @memberof Constants\n * @type object\n * @property {number} WRONG_TYPE 0\n * @property {number} ELEMENT_NOT_FOUND 1\n * @property {number} CANVAS_NOT_FOUND 2\n * @property {number} WEBGL_NOT_SUPPORTED 3\n * @property {number} ADD_CONTROL_FIRST 4\n * @property {number} PROVIDE_WIDTH_OR_HEIGHT 5\n */\nexport const CODES: {\n  [key in keyof typeof MESSAGES]: number;\n} = {\n  WRONG_TYPE: 0,\n  ELEMENT_NOT_FOUND: 1,\n  ELEMENT_NOT_CANVAS: 2,\n  WEBGL_NOT_SUPPORTED: 3,\n  ADD_CONTROL_FIRST: 4,\n  PROVIDE_WIDTH_OR_HEIGHT: 5,\n};\n\nexport const MESSAGES = {\n  WRONG_TYPE: (val: any, types: string[]) => `${typeof val} is not a ${types.map(type => `\"${type}\"`).join(\" or \")}.`,\n  ELEMENT_NOT_FOUND: (query: string) => `Element with selector \"${query}\" not found.`,\n  ELEMENT_NOT_CANVAS: (el: HTMLElement) => `Given element <${el.tagName}> is not a canvas.`,\n  WEBGL_NOT_SUPPORTED: \"WebGL is not supported on this browser.\",\n  ADD_CONTROL_FIRST: \"Control is enabled before setting a target element.\",\n  PROVIDE_WIDTH_OR_HEIGHT: \"Either width or height should be given.\",\n};\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport View3DError from \"./View3DError\";\nimport * as ERROR from \"~/consts/error\";\n\nexport function getElement(el: HTMLElement | string | null, parent?: HTMLElement): HTMLElement | null {\n  let targetEl: HTMLElement | null = null;\n\n  if (typeof el === \"string\") {\n    const parentEl = parent ? parent : document;\n    const queryResult = parentEl.querySelector(el);\n    if (!queryResult) {\n      throw new View3DError(ERROR.MESSAGES.ELEMENT_NOT_FOUND(el), ERROR.CODES.ELEMENT_NOT_FOUND);\n    }\n    targetEl = queryResult as HTMLElement;\n  } else if (el && el.nodeType === Node.ELEMENT_NODE) {\n    targetEl = el;\n  }\n\n  return targetEl;\n}\n\nexport function getCanvas(el: HTMLElement | string): HTMLCanvasElement {\n  const targetEl = getElement(el);\n\n  if (!targetEl) {\n    throw new View3DError(ERROR.MESSAGES.WRONG_TYPE(el, [\"HTMLElement\", \"string\"]), ERROR.CODES.WRONG_TYPE);\n  }\n\n  if (!/^canvas$/i.test(targetEl.tagName)) {\n    throw new View3DError(ERROR.MESSAGES.ELEMENT_NOT_CANVAS(targetEl), ERROR.CODES.ELEMENT_NOT_CANVAS);\n  }\n\n  return targetEl as HTMLCanvasElement;\n}\n\nexport function range(end: number): number[] {\n  if (!end || end <= 0) {\n    return [];\n  }\n\n  return Array.apply(0, Array(end)).map((undef, idx) => idx);\n}\n\nexport function toRadian(x: number) {\n  return x * Math.PI / 180;\n}\n\nexport function clamp(x: number, min: number, max: number) {\n  return Math.max(Math.min(x, max), min);\n}\n\nexport function findIndex<T>(target: T, list: T[]) {\n  let index = -1;\n  for (const itemIndex of range(list.length)) {\n    if (list[itemIndex] === target) {\n      index = itemIndex;\n      break;\n    }\n  }\n  return index;\n}\n\n// Linear interpolation between a and b\nexport function mix(a: number, b: number, t: number) {\n  return a * (1 - t) + b * t;\n}\n\nexport function circulate(val: number, min: number, max: number) {\n  const size = Math.abs(max - min);\n\n  if (val < min) {\n    const offset = (min - val) % size;\n    val = max - offset;\n  } else if (val > max) {\n    const offset = (val - max) % size;\n    val = min + offset;\n  }\n\n  return val;\n}\n\nexport function merge(target: object, ...srcs: object[]): object {\n  srcs.forEach(source => {\n    Object.keys(source).forEach(key => {\n      const value = source[key];\n      if (Array.isArray(target[key]) && Array.isArray(value)) {\n        target[key] = [...target[key], ...value];\n      } else {\n        target[key] = value;\n      }\n    });\n  });\n\n  return target;\n}\n\nexport function getBoxPoints(box: THREE.Box3) {\n  return [\n    box.min.clone(),\n    new THREE.Vector3(box.min.x, box.min.y, box.max.z),\n    new THREE.Vector3(box.min.x, box.max.y, box.min.z),\n    new THREE.Vector3(box.min.x, box.max.y, box.max.z),\n    new THREE.Vector3(box.max.x, box.min.y, box.min.z),\n    new THREE.Vector3(box.max.x, box.min.y, box.max.z),\n    new THREE.Vector3(box.max.x, box.max.y, box.min.z),\n    box.max.clone(),\n  ];\n}\n\nexport function toPowerOfTwo(val: number) {\n  let result = 1;\n\n  while (result < val) {\n    result *= 2;\n  }\n\n  return result;\n}\n\nexport function getPrimaryAxisIndex(basis: THREE.Vector3[], viewDir: THREE.Vector3) {\n  let primaryIdx = 0;\n  let maxDot = 0;\n\n  basis.forEach((axes, axesIdx) => {\n    const dotProduct = Math.abs(viewDir.dot(axes));\n\n    if (dotProduct > maxDot) {\n      primaryIdx = axesIdx;\n      maxDot = dotProduct;\n    }\n  });\n\n  return primaryIdx;\n}\n\n// In radian\nexport function getRotationAngle(center: THREE.Vector2, v1: THREE.Vector2, v2: THREE.Vector2) {\n  const centerToV1 = new THREE.Vector2().subVectors(v1, center).normalize();\n  const centerToV2 = new THREE.Vector2().subVectors(v2, center).normalize();\n\n  // Get the rotation angle with the model's NDC coordinates as the center.\n  const deg = centerToV2.angle() - centerToV1.angle();\n  const compDeg = -Math.sign(deg) * (2 * Math.PI - Math.abs(deg));\n  // Take the smaller deg\n  const rotationAngle = Math.abs(deg) < Math.abs(compDeg) ? deg : compDeg;\n\n  return rotationAngle;\n}\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport Model from \"./Model\";\nimport Environment from \"~/environments/Environment\";\nimport { STANDARD_MAPS } from \"~/consts/internal\";\nimport { findIndex } from \"~/utils\";\n\n/**\n * Scene that View3D will render.\n * All model datas including Mesh, Lights, etc. will be included on this\n * @category Core\n */\nclass Scene {\n  private _root: THREE.Scene;\n  private _userObjects: THREE.Group;\n  private _envObjects: THREE.Group;\n  private _envs: Environment[];\n\n  /**\n   * Root {@link https://threejs.org/docs/#api/en/scenes/Scene THREE.Scene} object\n   */\n  public get root() { return this._root; }\n\n  /**\n   * {@link Environment}s inside scene\n   */\n  public get environments() { return this._envs; }\n\n  /**\n   * Return the visibility of the root scene\n   */\n  public get visible() { return this._root.visible; }\n\n  /**\n   * Create new Scene instance\n   */\n  constructor() {\n    this._root = new THREE.Scene();\n    this._userObjects = new THREE.Group();\n    this._envObjects = new THREE.Group();\n    this._envs = [];\n\n    const root = this._root;\n    const userObjects = this._userObjects;\n    const envObjects = this._envObjects;\n\n    userObjects.name = \"userObjects\";\n    envObjects.name = \"envObjects\";\n\n    root.add(userObjects);\n    root.add(envObjects);\n  }\n\n  /**\n   * Update scene to fit the given model\n   * @param model model to fit\n   * @param override options for specific environments\n   */\n  public update(model: Model, override?: any): void {\n    this._envs.forEach(env => env.fit(model, override));\n  }\n\n  /**\n   * Reset scene to initial state\n   * @returns {void} Nothing\n   */\n  public reset(): void {\n    this.resetModel();\n    this.resetEnv();\n  }\n\n  /**\n   * Fully remove all objects that added by calling {@link Scene#add add()}\n   * @returns {void} Nothing\n   */\n  public resetModel(): void {\n    this._removeChildsOf(this._userObjects);\n  }\n\n  /**\n   * Remove all objects that added by calling {@link Scene#addEnv addEnv()}\n   * This will also reset scene background & envmap\n   * @returns {void} Nothing\n   */\n  public resetEnv(): void {\n    this._removeChildsOf(this._envObjects);\n    this._envs = [];\n\n    this._root.background = null;\n    this._root.environment = null;\n  }\n\n  /**\n   * Add new Three.js {@link https://threejs.org/docs/#api/en/core/Object3D Object3D} into the scene\n   * @param object {@link https://threejs.org/docs/#api/en/core/Object3D THREE.Object3D}s to add\n   * @returns {void} Nothing\n   */\n  public add(...object: THREE.Object3D[]): void {\n    this._userObjects.add(...object);\n  }\n\n  /**\n   * Add new {@link Environment} or Three.js {@link https://threejs.org/docs/#api/en/core/Object3D Object3D}s to the scene, which won't be removed after displaying another 3D model\n   * @param envs {@link Environment} | {@link https://threejs.org/docs/#api/en/core/Object3D THREE.Object3D}s to add\n   * @returns {void} Nothing\n   */\n  public addEnv(...envs: (Environment | THREE.Object3D)[]): void {\n    envs.forEach(env => {\n      if ((env as THREE.Object3D).isObject3D) {\n        this._envObjects.add(env as THREE.Object3D);\n      } else {\n        this._envs.push(env as Environment);\n        this._envObjects.add(...(env as Environment).objects);\n      }\n    });\n  }\n\n  /**\n   * Remove Three.js {@link https://threejs.org/docs/#api/en/core/Object3D Object3D} into the scene\n   * @param object {@link https://threejs.org/docs/#api/en/core/Object3D THREE.Object3D}s to add\n   * @returns {void} Nothing\n   */\n  public remove(...object: THREE.Object3D[]): void {\n    this._userObjects.remove(...object);\n  }\n\n  /**\n   * Remove {@link Environment} or Three.js {@link https://threejs.org/docs/#api/en/core/Object3D Object3D}s to the scene, which won't be removed after displaying another 3D model\n   * @param envs {@link Environment} | {@link https://threejs.org/docs/#api/en/core/Object3D THREE.Object3D}s to add\n   * @returns {void} Nothing\n   */\n  public removeEnv(...envs: (Environment | THREE.Object3D)[]): void {\n    envs.forEach(env => {\n      if ((env as THREE.Object3D).isObject3D) {\n        this._envObjects.remove(env as THREE.Object3D);\n      } else {\n        const envIndex = findIndex(env as Environment, this._envs);\n        if (envIndex > -1) {\n          this._envs.splice(envIndex, 1);\n        }\n        this._envObjects.remove(...(env as Environment).objects);\n      }\n    });\n  }\n\n  /**\n   * Set background of the scene.\n   * @see {@link https://threejs.org/docs/#api/en/scenes/Scene.background THREE.Scene.background}\n   * @param background A texture to set as background\n   * @returns {void} Nothing\n   */\n  public setBackground(background: THREE.Color | THREE.Texture | THREE.CubeTexture | THREE.WebGLCubeRenderTarget | null): void {\n    // Three.js's type definition does not include WebGLCubeRenderTarget, but it works and defined on their document\n    // See https://threejs.org/docs/#api/en/scenes/Scene.background\n    this._root.background = background as THREE.Texture | null;\n  }\n\n  /**\n   * Set scene's environment map that affects all physical materials in the scene\n   * @see {@link https://threejs.org/docs/#api/en/scenes/Scene.environment THREE.Scene.environment}\n   * @param envmap A texture to set as environment map\n   * @returns {void} Nothing\n   */\n  public setEnvMap(envmap: THREE.Texture | THREE.CubeTexture | THREE.WebGLCubeRenderTarget | null): void {\n    // Next line written to silence Three.js's warning\n    const environment = (envmap as THREE.WebGLCubeRenderTarget).texture ? (envmap as THREE.WebGLCubeRenderTarget).texture : envmap;\n    this._root.environment = environment as THREE.Texture | null;\n  }\n\n  /**\n   * Make this scene visible\n   * @returns {void} Nothing\n   */\n  public show(): void {\n    this._root.visible = true;\n  }\n\n  /**\n   * Make this scene invisible\n   * @returns {void} Nothing\n   */\n  public hide(): void {\n    this._root.visible = false;\n  }\n\n  private _removeChildsOf(obj: THREE.Object3D) {\n    obj.traverse(child => {\n      if ((child as any).isMesh) {\n        const mesh = child as THREE.Mesh;\n\n        // Release geometry & material memory\n        mesh.geometry.dispose();\n        const materials = Array.isArray(mesh.material) ? mesh.material : [mesh.material];\n\n        materials.forEach(mat => {\n          STANDARD_MAPS.forEach(map => {\n            if (mat[map]) {\n              mat[map].dispose();\n            }\n          });\n        });\n      }\n    });\n\n    while (obj.children.length > 0) {\n      obj.remove(obj.children[0]);\n    }\n  }\n}\n\nexport default Scene;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport Camera from \"./Camera\";\nimport CameraControl from \"~/controls/CameraControl\";\nimport { findIndex } from \"~/utils\";\n\n/**\n * Controller that controls camera of the View3D\n * @category Core\n */\nclass Controller {\n  private _canvas: HTMLCanvasElement;\n  private _camera: Camera;\n  private _controls: CameraControl[] = [];\n\n  /**\n   * {@link CameraControl CameraControl} instances that is added on this controller.\n   */\n  public get controls() { return this._controls; }\n\n  /**\n   * Create new Controller instance\n   */\n  constructor(canvas: HTMLCanvasElement, camera: Camera) {\n    this._canvas = canvas;\n    this._camera = camera;\n  }\n\n  /**\n   * Remove all attached controls, and removes all event listeners attached by that controls.\n   * @returns {void} Nothing\n   */\n  public clear(): void {\n    this._controls.forEach(control => control.destroy());\n    this._controls = [];\n  }\n\n  /**\n   * Add a new control\n   * @param control {@link CameraControl CameraControl} instance to add\n   * @see Adding Controls\n   * @returns {void} Nothing\n   */\n  public add(control: CameraControl): void {\n    const canvas = this._canvas;\n    if (!control.element) {\n      // Set canvas as default element\n      control.setElement(canvas);\n    }\n    control.sync(this._camera);\n    control.enable();\n    this._controls.push(control);\n  }\n\n  /**\n   * Remove control and disable it\n   * @param control {@link CameraControl CameraControl} instance to remove\n   * @returns removed control or null if it doesn't exists\n   */\n  public remove(control: CameraControl): CameraControl | null {\n    const controls = this._controls;\n    const controlIndex = findIndex(control, controls);\n    if (controlIndex < 0) return null;\n\n    const removedControl = controls.splice(controlIndex, 1)[0];\n    removedControl.disable();\n\n    return removedControl;\n  }\n\n  /**\n   * Enable all controls attached\n   * @returns {void} Nothing\n   */\n  public enableAll(): void {\n    this._controls.forEach(control => control.enable());\n    this.syncToCamera();\n  }\n\n  /**\n   * Disable all controls attached\n   * @returns {void} Nothing\n   */\n  public disableAll(): void {\n    this._controls.forEach(control => control.disable());\n  }\n\n  /**\n   * Update all controls attached to given screen size.\n   * @param size Size of the screen. Noramlly size of the canvas is used.\n   * @returns {void} Nothing\n   */\n  public resize(size: THREE.Vector2): void {\n    this._controls.forEach(control => control.resize(size));\n  }\n\n  /**\n   * Synchronize all controls attached to current camera position.\n   * @returns {void} Nothing\n   */\n  public syncToCamera(): void {\n    this._controls.forEach(control => control.sync(this._camera));\n  }\n\n  /**\n   * Update all controls attached to this controller & update camera position based on it.\n   * @param delta number of seconds to update controls\n   * @returns {void} Nothing\n   */\n  public update(delta: number): void {\n    const deltaMiliSec = delta * 1000;\n    const camera = this._camera;\n\n    this._controls.forEach(control => {\n      control.update(camera, deltaMiliSec);\n    });\n\n    camera.updatePosition();\n  }\n}\n\nexport default Controller;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\n\n/**\n * Data class of camera's pose\n */\nclass Pose {\n  /**\n   * Create new instance of pose\n   * @param yaw yaw\n   * @param pitch pitch\n   * @param distance distance\n   * @param pivot pivot\n   * @see https://threejs.org/docs/#api/en/math/Vector3\n   * @example\n   * import { THREE, Pose } from \"@egjs/view3d\";\n   *\n   * const pose = new Pose(180, 45, 150, new THREE.Vector3(5, -1, 3));\n   */\n  constructor(\n    public yaw: number,\n    public pitch: number,\n    public distance: number,\n    public pivot: THREE.Vector3 = new THREE.Vector3(0, 0, 0),\n  ) {}\n\n  /**\n   * Clone this pose\n   * @returns Cloned pose\n   */\n  public clone(): Pose {\n    return new Pose(\n      this.yaw, this.pitch, this.distance,\n      this.pivot.clone(),\n    );\n  }\n}\n\nexport default Pose;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\n/**\n * Collection of easing functions\n * @namespace EASING\n * @example\n * import View3D, { RotateControl, EASING } from \"@egjs/view3d\";\n *\n * new RotateControl({\n *  easing: EASING.EASE_OUT_CUBIC,\n * });\n */\n\n/**\n * @memberof EASING\n * @name SINE_WAVE\n */\nexport const SINE_WAVE = (x: number) => Math.sin(x * Math.PI * 2);\n/**\n * @memberof EASING\n * @name EASE_OUT_CUBIC\n */\nexport const EASE_OUT_CUBIC = (x: number) => 1 - Math.pow(1 - x, 3);\n/**\n * @memberof EASING\n * @name EASE_OUT_BOUNCE\n */\nexport const EASE_OUT_BOUNCE = (x: number): number => {\n  const n1 = 7.5625;\n  const d1 = 2.75;\n\n  if (x < 1 / d1) {\n      return n1 * x * x;\n  } else if (x < 2 / d1) {\n      return n1 * (x -= 1.5 / d1) * x + 0.75;\n  } else if (x < 2.5 / d1) {\n      return n1 * (x -= 2.25 / d1) * x + 0.9375;\n  } else {\n      return n1 * (x -= 2.625 / d1) * x + 0.984375;\n  }\n};\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport Pose from \"~/core/camera/Pose\";\nimport { EASE_OUT_CUBIC } from \"./easing\";\nimport { Range } from \"~/types/internal\";\n\nexport const MODEL_SIZE = 80;\n\n// Animation related\nexport const EASING = EASE_OUT_CUBIC;\nexport const ANIMATION_DURATION = 500;\nexport const ANIMATION_LOOP = false;\nexport const ANIMATION_RANGE: Readonly<Range> = {\n  min: 0, max: 1,\n};\n\n// Camera related\nexport const CAMERA_POSE: Readonly<Pose> = new Pose(0, 0, 100, new THREE.Vector3(0, 0, 0));\nexport const INFINITE_RANGE: Readonly<Range> = {\n  min: -Infinity, max: Infinity,\n};\nexport const PITCH_RANGE: Readonly<Range> = {\n  min: -89.9, max: 89.9,\n};\nexport const DISTANCE_RANGE: Readonly<Range> = {\n  min: 0, max: 500,\n};\nexport const MINIMUM_DISTANCE = 1;\nexport const MAXIMUM_DISTANCE = 500;\nexport const NULL_ELEMENT: HTMLElement | string | null = null;\nexport const DRACO_DECODER_URL = \"https://www.gstatic.com/draco/v1/decoders/\";\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport { clamp, mix, circulate } from \"~/utils\";\nimport { Range } from \"~/types/internal\";\nimport * as DEFAULT from \"~/consts/default\";\n\nclass Motion {\n  // Options\n  private _duration: number;\n  private _loop: boolean;\n  private _range: Range;\n  private _easing: (x: number) => number;\n\n  // Internal states\n  private _progress: number;\n  private _val: number;\n  private _start: number;\n  private _end: number;\n  private _activated: boolean;\n\n  public get val() { return this._val; }\n  public get start() { return this._start; }\n  public get end() { return this._end; }\n  public get progress() { return this._progress; }\n  public get duration() { return this._duration; }\n  public get loop() { return this._loop; }\n  public get range() { return this._range; }\n  public get easing() { return this._easing; }\n\n  public set duration(val: number) { this._duration = val; }\n  public set loop(val: boolean) { this._loop = val; }\n  public set range(val: Range) { this._range = val; }\n  public set easing(val: (x: number) => number) { this._easing = val; }\n\n  constructor({\n    duration = DEFAULT.ANIMATION_DURATION,\n    loop = DEFAULT.ANIMATION_LOOP,\n    range = DEFAULT.ANIMATION_RANGE,\n    easing = DEFAULT.EASING,\n  } = {}) {\n    this._duration = duration;\n    this._loop = loop;\n    this._range = range;\n    this._easing = easing;\n    this._activated = false;\n    this.reset(0);\n  }\n\n  /**\n   * Update motion and progress it by given deltaTime\n   * @param deltaTime number of milisec to update motion\n   * @returns Difference(delta) of the value from the last update.\n   */\n  public update(deltaTime: number): number {\n    if (!this._activated) return 0;\n\n    const start = this._start;\n    const end = this._end;\n    const duration = this._duration;\n    const prev = this._val;\n    const loop = this._loop;\n\n    const nextProgress = this._progress + deltaTime / duration;\n\n    this._progress = loop\n     ? circulate(nextProgress, 0, 1)\n     : clamp(nextProgress, 0, 1);\n\n    const easedProgress = this._easing(this._progress);\n    this._val = mix(start, end, easedProgress);\n\n    if (!loop && this._progress >= 1) {\n      this._activated = false;\n    }\n\n    return this._val - prev;\n  }\n\n  public reset(defaultVal: number): void {\n    const range = this._range;\n    const val = clamp(defaultVal, range.min, range.max);\n    this._start = val;\n    this._end = val;\n    this._val = val;\n    this._progress = 0;\n    this._activated = false;\n  }\n\n  public setEndDelta(delta: number): void {\n    const range = this._range;\n\n    this._start = this._val;\n    this._end = clamp(this._end + delta, range.min, range.max);\n    this._progress = 0;\n    this._activated = true;\n  }\n}\n\nexport default Motion;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport CameraControl from \"./CameraControl\";\nimport Motion from \"./Motion\";\nimport Camera from \"~/core/camera/Camera\";\nimport Pose from \"~/core/camera/Pose\";\nimport * as DEFAULT from \"~/consts/default\";\nimport { AnyFunction } from \"~/types/external\";\nimport { mix, circulate } from \"~/utils\";\n\n/**\n * Control that animates model without user input\n * @category Controls\n */\nclass AnimationControl implements CameraControl {\n  // Options\n  private _from: Pose;\n  private _to: Pose;\n\n  // Internal values\n  private _motion: Motion;\n  private _enabled: boolean = false;\n  private _finishCallbacks: AnyFunction[] = [];\n\n  public get element() { return null; }\n  /**\n   * Whether this control is enabled or not\n   * @readonly\n   */\n  public get enabled() { return this._enabled; }\n  /**\n   * Duration of the animation\n   */\n  public get duration() { return this._motion.duration; }\n  /**\n   * Easing function of the animation\n   */\n  public get easing() { return this._motion.easing; }\n\n  public set duration(val: number) { this._motion.duration = val; }\n  public set easing(val: (x: number) => number) { this._motion.easing = val; }\n\n  /**\n   * Create new instance of AnimationControl\n   * @param from Start pose\n   * @param to End pose\n   * @param {object} options Options\n   * @param {number} [options.duration=500] Animation duration\n   * @param {function} [options.easing=(x: number) => 1 - Math.pow(1 - x, 3)] Animation easing function\n   */\n  constructor(from: Pose, to: Pose, {\n    duration = DEFAULT.ANIMATION_DURATION,\n    easing = DEFAULT.EASING,\n  } = {}) {\n    from = from.clone();\n    to = to.clone();\n\n    from.yaw = circulate(from.yaw, 0, 360);\n    to.yaw = circulate(to.yaw, 0, 360);\n\n    // Take the smaller degree\n    if (Math.abs(to.yaw - from.yaw) > 180) {\n      to.yaw = to.yaw < from.yaw\n        ? to.yaw + 360\n        : to.yaw - 360;\n    }\n\n    this._motion = new Motion({ duration, range: DEFAULT.ANIMATION_RANGE, easing });\n    this._from = from;\n    this._to = to;\n  }\n\n  /**\n   * Destroy the instance and remove all event listeners attached\n   * This also will reset CSS cursor to intial\n   * @returns {void} Nothing\n   */\n  public destroy(): void {\n    this.disable();\n  }\n\n  /**\n   * Update control by given deltaTime\n   * @param camera Camera to update position\n   * @param deltaTime Number of milisec to update\n   * @returns {void} Nothing\n   */\n  public update(camera: Camera, deltaTime: number): void {\n    if (!this._enabled) return;\n\n    const from = this._from;\n    const to = this._to;\n    const motion = this._motion;\n    motion.update(deltaTime);\n\n    // Progress that easing is applied\n    const progress = motion.val;\n\n    camera.yaw = mix(from.yaw, to.yaw, progress);\n    camera.pitch = mix(from.pitch, to.pitch, progress);\n    camera.distance = mix(from.distance, to.distance, progress);\n    camera.pivot = from.pivot.clone().lerp(to.pivot, progress);\n\n    if (motion.progress >= 1) {\n      this.disable();\n      this._finishCallbacks.forEach(callback => callback());\n    }\n  }\n\n  /**\n   * Enable this input and add event listeners\n   * @returns {void} Nothing\n   */\n  public enable(): void {\n    if (this._enabled) return;\n\n    this._enabled = true;\n    this._motion.reset(0);\n    this._motion.setEndDelta(1);\n  }\n\n  /**\n   * Disable this input and remove all event handlers\n   * @returns {void} Nothing\n   */\n  public disable(): void {\n    if (!this._enabled) return;\n\n    this._enabled = false;\n  }\n\n  /**\n   * Add callback which is called when animation is finished\n   * @param callback Callback that will be called when animation finishes\n   * @returns {void} Nothing\n   */\n  public onFinished(callback: AnyFunction): void {\n    this._finishCallbacks.push(callback);\n  }\n\n  /**\n   * Remove all onFinished callbacks\n   * @returns {void} Nothing\n   */\n  public clearFinished(): void {\n    this._finishCallbacks = [];\n  }\n\n  public resize(size: THREE.Vector2) {\n    // DO NOTHING\n  }\n\n  public setElement(element: HTMLElement) {\n    // DO NOTHING\n  }\n\n  public sync(camera: Camera): void {\n    // Do nothing\n  }\n}\n\nexport default AnimationControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport Pose from \"./Pose\";\nimport Controller from \"./Controller\";\nimport AnimationControl from \"~/controls/AnimationControl\";\nimport { toRadian, clamp, circulate } from \"~/utils\";\nimport * as DEFAULT from \"~/consts/default\";\n\n/**\n * Camera that renders the scene of View3D\n * @category Core\n */\nclass Camera {\n  private _threeCamera: THREE.PerspectiveCamera;\n  private _controller: Controller;\n  private _minDistance: number = DEFAULT.MINIMUM_DISTANCE;\n  private _maxDistance: number = DEFAULT.MAXIMUM_DISTANCE;\n  private _defaultPose: Pose = DEFAULT.CAMERA_POSE;\n  private _currentPose: Pose = this._defaultPose.clone();\n\n  /**\n   * Three.js {@link https://threejs.org/docs/#api/en/cameras/PerspectiveCamera PerspectiveCamera} instance\n   * @readonly\n   * @type THREE.PerspectiveCamera\n   */\n  public get threeCamera() { return this._threeCamera; }\n\n  /**\n   * Controller of the camera\n   * @readonly\n   * @type Controller\n   */\n  public get controller() { return this._controller; }\n\n  /**\n   * Camera's default pose(yaw, pitch, distance, pivot)\n   * This will be new currentPose when {@link Camera#reset reset()} is called\n   * @readonly\n   * @type Pose\n   */\n  public get defaultPose(): Readonly<Pose> { return this._defaultPose; }\n\n  /**\n   * Camera's current pose value\n   * @readonly\n   * @type Pose\n   */\n  public get currentPose(): Pose { return this._currentPose.clone(); }\n\n  /**\n   * Camera's current yaw\n   * {@link Camera#updatePosition} should be called after changing this value, and normally it is called every frame.\n   * @type number\n   */\n  public get yaw() { return this._currentPose.yaw; }\n\n  /**\n   * Camera's current pitch\n   * {@link Camera#updatePosition} should be called after changing this value, and normally it is called every frame.\n   * @type number\n   */\n  public get pitch() { return this._currentPose.pitch; }\n\n  /**\n   * Camera's current distance\n   * {@link Camera#updatePosition} should be called after changing this value, and normally it is called every frame.\n   * @type number\n   */\n  public get distance() { return this._currentPose.distance; }\n\n  /**\n   * Current pivot point of camera rotation\n   * @readonly\n   * @type THREE.Vector3\n   * @see {@link https://threejs.org/docs/#api/en/math/Vector3 THREE#Vector3}\n   */\n  public get pivot() { return this._currentPose.pivot; }\n\n  /**\n   * Minimum distance from lookAtPosition\n   * @type number\n   * @example\n   * import View3D from \"@egjs/view3d\";\n   *\n   * const view3d = new View3D(\"#view3d-canvas\");\n   * view3d.camera.minDistance = 100;\n   */\n  public get minDistance() { return this._minDistance; }\n\n  /**\n   * Maximum distance from lookAtPosition\n   * @type number\n   * @example\n   * import View3D from \"@egjs/view3d\";\n   *\n   * const view3d = new View3D(\"#view3d-canvas\");\n   * view3d.camera.maxDistance = 400;\n   */\n  public get maxDistance() { return this._maxDistance; }\n\n  /**\n   * Camera's focus of view value\n   * @type number\n   * @see {@link https://threejs.org/docs/#api/en/cameras/PerspectiveCamera.fov THREE#PerspectiveCamera}\n   */\n  public get fov() { return this._threeCamera.fov; }\n\n  /**\n   * Camera's frustum width on current distance value\n   * @type number\n   */\n  public get renderWidth() { return this.renderHeight * this._threeCamera.aspect; }\n\n  /**\n   * Camera's frustum height on current distance value\n   * @type number\n   */\n  public get renderHeight() { return 2 * this.distance * Math.tan(toRadian(this.fov / 2)); }\n\n  public set minDistance(val: number) { this._minDistance = val; }\n  public set maxDistance(val: number) { this._maxDistance = val; }\n  public set pose(val: Pose) {\n    this._currentPose = val;\n    this._controller.syncToCamera();\n  }\n  public set yaw(val: number) { this._currentPose.yaw = val; }\n  public set pitch(val: number) { this._currentPose.pitch = val; }\n  public set distance(val: number) { this._currentPose.distance = val; }\n  public set pivot(val: THREE.Vector3) { this._currentPose.pivot = val; }\n\n  public set fov(val: number) {\n    this._threeCamera.fov = val;\n    this._threeCamera.updateProjectionMatrix();\n  }\n\n  /**\n   * Create new Camera instance\n   * @param canvas \\<canvas\\> element to render 3d model\n   */\n  constructor(canvas: HTMLCanvasElement) {\n    this._threeCamera = new THREE.PerspectiveCamera();\n    this._controller = new Controller(canvas, this);\n  }\n\n  /**\n   * Reset camera to default pose\n   * @param duration Duration of the reset animation\n   * @param easing Easing function for the reset animation\n   * @returns Promise that resolves when the animation finishes\n   */\n  public reset(duration: number = 0, easing: (x: number) => number = DEFAULT.EASING): Promise<void> {\n    const controller = this._controller;\n    const currentPose = this._currentPose;\n    const defaultPose = this._defaultPose;\n\n    if (duration <= 0) {\n      // Reset camera immediately\n      this._currentPose = defaultPose.clone();\n\n      controller.syncToCamera();\n\n      return Promise.resolve();\n    } else {\n      // Add reset animation control to controller\n      const resetControl = new AnimationControl(currentPose, defaultPose);\n      resetControl.duration = duration;\n      resetControl.easing = easing;\n\n      return new Promise(resolve => {\n        resetControl.onFinished(() => {\n          controller.remove(resetControl);\n          controller.syncToCamera();\n          resolve();\n        });\n\n        controller.add(resetControl);\n      });\n    }\n  }\n\n  /**\n   * Update camera's aspect to given size\n   * @param size {@link THREE.Vector2} instance that has width(x), height(y)\n   * @returns {void} Nothing\n   */\n  public resize(size: THREE.Vector2): void {\n    const cam = this._threeCamera;\n    const aspect = size.x / size.y;\n\n    cam.aspect = aspect;\n    cam.updateProjectionMatrix();\n\n    this._controller.resize(size);\n  }\n\n  /**\n   * Set default position of camera relative to the 3d model\n   * New default pose will be used when {@link Camera#reset reset()} is called\n   * @param newDefaultPose new default pose to apply\n   * @returns {void} Nothing\n   */\n  public setDefaultPose(newDefaultPose: Partial<{\n    yaw: number,\n    pitch: number,\n    distance: number,\n    pivot: THREE.Vector3,\n  }>): void {\n    const defaultPose = this._defaultPose;\n    const { yaw, pitch, distance, pivot } = newDefaultPose;\n\n    if (yaw != null) {\n      defaultPose.yaw = yaw;\n    }\n    if (pitch != null) {\n      defaultPose.pitch = pitch;\n    }\n    if (distance != null) {\n      defaultPose.distance = distance;\n    }\n    if (pivot != null) {\n      defaultPose.pivot = pivot;\n    }\n  }\n\n  /**\n   * Update camera position base on the {@link Camera#currentPose currentPose} value\n   * @returns {void} Nothing\n   */\n  public updatePosition(): void {\n    this._clampCurrentPose();\n\n    const threeCamera = this._threeCamera;\n    const pose = this._currentPose;\n\n    const yaw = toRadian(pose.yaw);\n    const pitch = toRadian(pose.pitch);\n    // Should use minimum distance to prevent distance becomes 0, which makes whole x,y,z to 0 regardless of pose\n    const distance = Math.max(pose.distance + this._minDistance, DEFAULT.MINIMUM_DISTANCE);\n\n    const newCamPos = new THREE.Vector3(0, 0, 0);\n    newCamPos.y = distance * Math.sin(pitch);\n    newCamPos.z = distance * Math.cos(pitch);\n\n    newCamPos.x = newCamPos.z * Math.sin(-yaw);\n    newCamPos.z = newCamPos.z * Math.cos(-yaw);\n\n    newCamPos.add(pose.pivot);\n\n    threeCamera.position.copy(newCamPos);\n    threeCamera.lookAt(pose.pivot);\n    threeCamera.updateProjectionMatrix();\n  }\n\n  private _clampCurrentPose() {\n    const currentPose = this._currentPose;\n\n    currentPose.yaw = circulate(currentPose.yaw, 0, 360);\n    currentPose.pitch = clamp(currentPose.pitch, DEFAULT.PITCH_RANGE.min, DEFAULT.PITCH_RANGE.max);\n    currentPose.distance = clamp(currentPose.distance, this._minDistance, this._maxDistance);\n  }\n}\n\nexport default Camera;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\n\n/**\n * Component that manages animations of the 3D Model\n * @category Core\n */\nclass ModelAnimator {\n  private _mixer: THREE.AnimationMixer;\n  private _clips: THREE.AnimationClip[];\n  private _actions: THREE.AnimationAction[];\n\n  /**\n   * Three.js {@link https://threejs.org/docs/#api/en/animation/AnimationClip AnimationClip}s that stored\n   * @type THREE.AnimationClip\n   * @readonly\n   */\n  public get clips() { return this._clips; }\n\n  /**\n   * {@link https://threejs.org/docs/index.html#api/en/animation/AnimationMixer THREE.AnimationMixer} instance\n   * @type THREE.AnimationMixer\n   * @readonly\n   */\n  public get mixer() { return this._mixer; }\n\n  /**\n   * Create new ModelAnimator instance\n   * @param scene {@link https://threejs.org/docs/index.html#api/en/scenes/Scene THREE.Scene} instance that is root of all 3d objects\n   */\n  constructor(scene: THREE.Scene) {\n    this._mixer = new THREE.AnimationMixer(scene);\n    this._clips = [];\n    this._actions = [];\n  }\n\n  /**\n   * Store the given clips\n   * @param clips Three.js {@link https://threejs.org/docs/#api/en/animation/AnimationClip AnimationClip}s of the model\n   * @returns {void} Nothing\n   * @example\n   * // After loading model\n   * view3d.animator.setClips(model.animations);\n   */\n  public setClips(clips: THREE.AnimationClip[]): void {\n    const mixer = this._mixer;\n    this._clips = clips;\n    this._actions = clips.map(clip => mixer.clipAction(clip));\n  }\n\n  /**\n   * Play one of the model's animation\n   * @param index Index of the animation to play\n   * @returns {void} Nothing\n   */\n  public play(index: number): void {\n    const action = this._actions[index];\n\n    if (action) {\n      action.play();\n    }\n  }\n\n  /**\n   * Pause one of the model's animation\n   * If you want to stop animation completely, you should call {@link ModelAnimator#stop stop} instead\n   * You should call {@link ModelAnimator#resume resume} to resume animation\n   * @param index Index of the animation to pause\n   * @returns {void} Nothing\n   */\n  public pause(index: number): void {\n    const action = this._actions[index];\n\n    if (action) {\n      action.timeScale = 0;\n    }\n  }\n\n  /**\n   * Resume one of the model's animation\n   * This will play animation from the point when the animation is paused\n   * @param index Index of the animation to resume\n   * @returns {void} Nothing\n   */\n  public resume(index: number): void {\n    const action = this._actions[index];\n\n    if (action) {\n      action.timeScale = 1;\n    }\n  }\n\n  /**\n   * Fully stops one of the model's animation\n   * @param index Index of the animation to stop\n   * @returns {void} Nothing\n   */\n  public stop(index: number): void {\n    const action = this._actions[index];\n\n    if (action) {\n      action.stop();\n    }\n  }\n\n  /**\n   * Update animations\n   * @param delta number of seconds to play animations attached\n   * @returns {void} Nothing\n   */\n  public update(delta: number): void {\n    this._mixer.update(delta);\n  }\n\n  /**\n   * Reset the instance and remove all cached animation clips attached to it\n   * @returns {void} Nothing\n   */\n  public reset(): void {\n    const mixer = this._mixer;\n\n    mixer.uncacheRoot(mixer.getRoot());\n\n    this._clips = [];\n    this._actions = [];\n  }\n}\n\nexport default ModelAnimator;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport View3D from \"~/View3D\";\nimport XRSession from \"../xr/XRSession\";\nimport WebARSession from \"../xr/WebARSession\";\n\n/**\n * XRManager that manages XRSessions\n * @category Core\n */\nclass XRManager {\n  private _view3d: View3D;\n  private _sessions: XRSession[];\n  private _currentSession: XRSession | null;\n\n  /**\n   * Array of {@link XRSession}s added\n   */\n  public get sessions() { return this._sessions; }\n  /**\n   * Current entry session. Note that only WebXR type session can be returned.\n   */\n  public get currentSession() { return this._currentSession; }\n\n  /**\n   * Create a new instance of the XRManager\n   * @param view3d Instance of the View3D\n   */\n  constructor(view3d: View3D) {\n    this._view3d = view3d;\n    this._sessions = [];\n    this._currentSession = null;\n  }\n\n  /**\n   * Return a Promise containing whether any of the added session is available\n   */\n  public async isAvailable(): Promise<boolean> {\n    const results = await Promise.all(this._sessions.map(session => session.isAvailable()));\n\n    return results.some(result => result === true);\n  }\n\n  /**\n   * Add new {@link XRSession}.\n   * The XRSession's order added is the same as the order of entry.\n   * @param xrSession XRSession to add\n   */\n  public addSession(...xrSession: XRSession[]) {\n    this._sessions.push(...xrSession);\n  }\n\n  /**\n   * Enter XR Session.\n   */\n  public async enter(): Promise<void> {\n    return this._enterSession(0, []);\n  }\n\n  /**\n   * Exit current XR Session.\n   */\n  public exit() {\n    if (this._currentSession) {\n      this._currentSession.exit(this._view3d);\n      this._currentSession = null;\n    }\n  }\n\n  private async _enterSession(sessionIdx: number, errors: any[]) {\n    const view3d = this._view3d;\n    const sessions = this._sessions;\n\n    if (sessionIdx >= sessions.length) {\n      if (errors.length < 1) {\n        errors.push(new Error(\"No sessions available\"));\n      }\n      return Promise.reject(errors);\n    }\n\n    const xrSession = sessions[sessionIdx];\n    const isSessionAvailable = await xrSession.isAvailable();\n    if (!isSessionAvailable) {\n      return this._enterSession(sessionIdx + 1, errors);\n    }\n\n    return await xrSession.enter(view3d).then(() => {\n      if (xrSession.isWebXRSession) {\n        // Non-webxr sessions are ignored\n        this._currentSession = xrSession;\n        (xrSession as WebARSession).session.addEventListener(\"end\", () => {\n          this._currentSession = null;\n        });\n      }\n      return errors;\n    }).catch(e => {\n      errors.push(e);\n      return this._enterSession(sessionIdx + 1, errors);\n    });\n  }\n}\n\nexport default XRManager;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nexport const EVENTS = {\n  MOUSE_DOWN: \"mousedown\",\n  MOUSE_MOVE: \"mousemove\",\n  MOUSE_UP: \"mouseup\",\n  TOUCH_START: \"touchstart\",\n  TOUCH_MOVE: \"touchmove\",\n  TOUCH_END: \"touchend\",\n  WHEEL: \"wheel\",\n  RESIZE: \"resize\",\n  CONTEXT_MENU: \"contextmenu\",\n  MOUSE_ENTER: \"mouseenter\",\n  MOUSE_LEAVE: \"mouseleave\",\n};\n\n// https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent.button\nexport enum MOUSE_BUTTON {\n  LEFT,\n  MIDDLE,\n  RIGHT,\n}\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport EventEmitter from \"./core/EventEmitter\";\nimport Renderer from \"./core/Renderer\";\nimport Scene from \"./core/Scene\";\nimport Camera from \"./core/camera/Camera\";\nimport Model from \"./core/Model\";\nimport ModelAnimator from \"./core/ModelAnimator\";\nimport XRManager from \"./core/XRManager\";\nimport { EVENTS } from \"./consts/event\";\nimport * as DEFAULT from \"./consts/default\";\nimport { getCanvas } from \"./utils\";\n\n/**\n * Yet another 3d model viewer\n * @category Core\n * @mermaid\n * classDiagram\n *   class View3D\n *     View3D *-- Camera\n *     View3D *-- Renderer\n *     View3D *-- Scene\n *     View3D *-- ModelAnimator\n *     Camera *-- Controller\n * @event resize\n * @event beforeRender\n * @event afterRender\n */\nclass View3D extends EventEmitter<{\n  resize: {\n    width: number;\n    height: number;\n    target: View3D;\n  };\n  beforeRender: View3D;\n  afterRender: View3D;\n}> {\n  /**\n   * Current version of the View3D\n   */\n  public static VERSION: string = \"#__VERSION__#\";\n\n  private _model: Model | null;\n  private _renderer: Renderer;\n  private _scene: Scene;\n  private _camera: Camera;\n  private _animator: ModelAnimator;\n  private _xr: XRManager;\n\n  /**\n   * {@link Renderer} instance of the View3D\n   * @type {Renderer}\n   */\n  public get renderer() { return this._renderer; }\n  /**\n   * {@link Scene} instance of the View3D\n   * @type {Scene}\n   */\n  public get scene() { return this._scene; }\n  /**\n   * {@link Camera} instance of the View3D\n   * @type {Camera}\n   */\n  public get camera() { return this._camera; }\n  /**\n   * {@link Controller} instance of the Camera\n   * @type {Controller}\n   */\n  public get controller() { return this._camera.controller; }\n  /**\n   * {@link ModelAnimator} instance of the View3D\n   * @type {ModelAnimator}\n   */\n  public get animator() { return this._animator; }\n  /**\n   * {@link XRManager} instance of the View3D\n   * @type {XRManager}\n   */\n  public get xr() { return this._xr; }\n  /**\n   * {@link Model} that View3D is currently showing\n   * @type {Model|null}\n   */\n  public get model() { return this._model; }\n\n  /**\n   * Creates new View3D instance\n   * @example\n   * import View3D, { ERROR_CODES } from \"@egjs/view3d\";\n   *\n   * try {\n   *   const view3d = new View3D(\"#wrapper\")\n   * } catch (e) {\n   *   if (e.code === ERROR_CODES.ELEMENT_NOT_FOUND) {\n   *     console.error(\"Element not found\")\n   *   }\n   * }\n   * @throws {View3DError} `CODES.WRONG_TYPE`<br/>When the parameter is not either string or the canvas element.\n   * @throws {View3DError} `CODES.ELEMENT_NOT_FOUND`<br/>When the element with given query does not exist.\n   * @throws {View3DError} `CODES.ELEMENT_NOT_CANVAS`<br/>When the element given is not a \\<canvas\\> element.\n   * @throws {View3DError} `CODES.WEBGL_NOT_SUPPORTED`<br/>When browser does not support WebGL.\n   * @see Model\n   * @see Camera\n   * @see Renderer\n   * @see Scene\n   * @see Controller\n   * @see XRManager\n   */\n  constructor(el: string | HTMLCanvasElement) {\n    super();\n    const canvas = getCanvas(el);\n\n    this._renderer = new Renderer(canvas);\n    this._camera = new Camera(canvas);\n    this._scene = new Scene();\n    this._animator = new ModelAnimator(this._scene.root);\n    this._xr = new XRManager(this);\n    this._model = null;\n\n    this.resize();\n\n    window.addEventListener(EVENTS.RESIZE, this.resize);\n  }\n\n  /**\n   * Destroy View3D instance and remove all events attached to it\n   * @returns {void} Nothing\n   */\n  public destroy(): void {\n    this._scene.reset();\n    this.controller.clear();\n    this._model = null;\n\n    window.removeEventListener(EVENTS.RESIZE, this.resize);\n  }\n\n  /**\n   * Resize View3D instance to fit current canvas size\n   * @method\n   * @returns {void} Nothing\n   */\n  public resize = (): void => {\n    this._renderer.resize();\n\n    const newSize = this._renderer.size;\n    this._camera.resize(newSize);\n\n    this.emit(\"resize\", { ...newSize, target: this });\n  }\n\n  /**\n   * Display the given model.\n   * This method will remove the current displaying model, and reset the camera & control to default position.\n   * View3D can only show one model at a time\n   * @param model {@link Model} instance to show\n   * @param {object} [options={}] Display options\n   * @param {number} [options.applySize=true] Whether to change model size to given \"size\" option.\n   * @param {number} [options.size=80] Size of the model to show as.\n   * @param {boolean} [options.resetView=true] Whether to reset the view to the camera's default pose.\n   * @returns {void} Nothing\n   */\n  public display(model: Model, {\n    applySize = true,\n    size = DEFAULT.MODEL_SIZE,\n    resetView = true,\n  } = {}): void {\n    const renderer = this._renderer;\n    const scene = this._scene;\n    const camera = this._camera;\n    const animator = this._animator;\n\n    if (applySize) {\n      model.size = size;\n    }\n    // model.moveToOrigin();\n\n    scene.resetModel();\n\n    if (resetView) {\n      camera.reset();\n    }\n\n    animator.reset();\n\n    this._model = model;\n\n    scene.add(model.scene);\n    animator.setClips(model.animations);\n\n    scene.update(model);\n\n    renderer.stopAnimationLoop();\n    renderer.setAnimationLoop(this.renderLoop);\n  }\n\n  /**\n   * View3D's basic render loop function\n   * @param delta Number of seconds passed since last frame\n   */\n  public renderLoop = (delta: number) => {\n    const renderer = this._renderer;\n    const scene = this._scene;\n    const camera = this._camera;\n    const controller = this.controller;\n    const animator = this._animator;\n\n    animator.update(delta);\n    controller.update(delta);\n\n    this.emit(\"beforeRender\", this);\n    renderer.render(scene, camera);\n    this.emit(\"afterRender\", this);\n  }\n}\n\nexport default View3D;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\n\n/**\n * Data class for loaded 3d model\n * @category Core\n */\nclass Model {\n  private _scene: THREE.Group;\n  private _animations: THREE.AnimationClip[];\n  private _initialBbox: THREE.Box3;\n  private _originalSize: number;\n  private _cachedLights: THREE.Light[] | null;\n  private _cachedMeshes: THREE.Mesh[] | null;\n  private _fixSkinnedBbox: boolean;\n\n  /**\n   * Scene of the model, see {@link https://threejs.org/docs/#api/en/objects/Group THREE.Group}\n   * @readonly\n   */\n  public get scene() { return this._scene; }\n  /**\n   * {@link https://threejs.org/docs/#api/en/animation/AnimationClip THREE.AnimationClip}s inside model\n   */\n  public get animations() { return this._animations; }\n  /***\n   * {@link https://threejs.org/docs/#api/en/lights/Light THREE.Light}s inside model if there's any.\n   * @readonly\n   */\n  public get lights() {\n    return this._cachedLights ? this._cachedLights : this._getAllLights();\n  }\n  /**\n   * {@link https://threejs.org/docs/#api/en/objects/Mesh THREE.Mesh}es inside model if there's any.\n   * @readonly\n   */\n  public get meshes() {\n    return this._cachedMeshes ? this._cachedMeshes : this._getAllMeshes();\n  }\n  /**\n   * Get a copy of model's current bounding box\n   * @type THREE#Box3\n   * @see https://threejs.org/docs/#api/en/math/Box3\n   */\n  public get bbox() {\n    return this._getTransformedBbox();\n  }\n  /**\n   * Get a copy of model's initial bounding box without transform\n   */\n  public get initialBbox() {\n    return this._initialBbox.clone();\n  }\n  /**\n   * Model's bounding box size\n   * Changing this will scale the model.\n   * @type number\n   * @example\n   * import { GLTFLoader } from \"@egjs/view3d\";\n   * new GLTFLoader().load(URL_TO_GLTF)\n   *  .then(model => {\n   *    model.size = 100;\n   *  })\n   */\n  public get size() {\n    return this._getTransformedBbox().getSize(new THREE.Vector3()).length();\n  }\n\n  /**\n   * Whether to apply inference from skeleton when calculating bounding box\n   * This can fix some models with skinned mesh when it has wrong bounding box\n   * @type boolean\n   */\n  public get fixSkinnedBbox() { return this._fixSkinnedBbox; }\n\n  /**\n   * Return the model's original bbox size before applying any transform\n   * @type number\n   */\n  public get originalSize() { return this._originalSize; }\n\n  /**\n   * Whether the model's meshes gets rendered into shadow map\n   * @type boolean\n   * @example\n   * model.castShadow = true;\n   */\n  public set castShadow(val: boolean) {\n    const meshes = this.meshes;\n    meshes.forEach(mesh => mesh.castShadow = val);\n  }\n\n  /**\n   * Whether the model's mesh materials receive shadows\n   * @type boolean\n   * @example\n   * model.receiveShadow = true;\n   */\n  public set receiveShadow(val: boolean) {\n    const meshes = this.meshes;\n    meshes.forEach(mesh => mesh.receiveShadow = val);\n  }\n\n  public set size(val: number) {\n    const scene = this._scene;\n    const initialBbox = this._initialBbox;\n\n    // Modify scale\n    const bboxSize = initialBbox.getSize(new THREE.Vector3());\n    const scale = val / bboxSize.length();\n    scene.scale.setScalar(scale);\n    scene.updateMatrix();\n  }\n\n  public set fixSkinnedBbox(val: boolean) { this._fixSkinnedBbox = val; }\n\n  /**\n   * Create new Model instance\n   */\n  constructor({\n    scenes,\n    animations = [],\n    fixSkinnedBbox = false,\n    castShadow = true,\n    receiveShadow = false,\n  }: {\n    scenes: THREE.Object3D[],\n    animations?: THREE.AnimationClip[],\n    fixSkinnedBbox?: boolean,\n    castShadow?: boolean,\n    receiveShadow?: boolean,\n  }) {\n    // This guarantees model's root has identity matrix at creation\n    this._scene = new THREE.Group();\n    const pivot = new THREE.Object3D();\n    pivot.name = \"Pivot\";\n    pivot.add(...scenes);\n    this._scene.add(pivot);\n\n    this._animations = animations;\n    this._fixSkinnedBbox = fixSkinnedBbox;\n    this._cachedLights = null;\n    this._cachedMeshes = null;\n\n    this._setInitialBbox();\n\n    const bboxCenter = this._initialBbox.getCenter(new THREE.Vector3());\n    pivot.position.copy(bboxCenter.negate());\n\n    this._moveInitialBboxToCenter();\n\n    this._originalSize = this.size;\n\n    this.castShadow = castShadow;\n    this.receiveShadow = receiveShadow;\n  }\n\n  /**\n   * Translate the model to center the model's bounding box to world origin (0, 0, 0).\n   */\n  public moveToOrigin() {\n    // Translate scene position to origin\n    const scene = this._scene;\n    const initialBbox = this._initialBbox.clone();\n\n    initialBbox.min.multiply(scene.scale);\n    initialBbox.max.multiply(scene.scale);\n\n    const bboxCenter = initialBbox.getCenter(new THREE.Vector3());\n    scene.position.copy(bboxCenter.negate());\n    scene.updateMatrix();\n  }\n\n  private _setInitialBbox() {\n    this._scene.updateMatrixWorld();\n    if (this._fixSkinnedBbox && this._hasSkinnedMesh()) {\n      this._initialBbox = this._getSkeletonBbox();\n    } else {\n      this._initialBbox = new THREE.Box3().setFromObject(this._scene);\n    }\n  }\n\n  private _getSkeletonBbox() {\n    const bbox = new THREE.Box3();\n\n    this.meshes.forEach((mesh: THREE.SkinnedMesh) => {\n      if (!mesh.isSkinnedMesh) {\n        bbox.expandByObject(mesh);\n        return;\n      }\n\n      const geometry = mesh.geometry as THREE.BufferGeometry;\n      const positions = geometry.attributes.position;\n      const skinIndicies = geometry.attributes.skinIndex;\n      const skinWeights = geometry.attributes.skinWeight;\n      const skeleton = mesh.skeleton;\n\n      skeleton.update();\n      const boneMatricies = skeleton.boneMatrices;\n\n      const finalMatrix = new THREE.Matrix4();\n      for (let posIdx = 0; posIdx < positions.count; posIdx++) {\n        finalMatrix.identity();\n\n        const skinned = new THREE.Vector4();\n        skinned.set(0, 0, 0, 0);\n        const skinVertex = new THREE.Vector4();\n        skinVertex.set(\n          positions.getX(posIdx),\n          positions.getY(posIdx),\n          positions.getZ(posIdx),\n          1,\n        ).applyMatrix4(mesh.bindMatrix);\n\n        const weights = [\n          skinWeights.getX(posIdx),\n          skinWeights.getY(posIdx),\n          skinWeights.getZ(posIdx),\n          skinWeights.getW(posIdx),\n        ];\n\n        const indicies = [\n          skinIndicies.getX(posIdx),\n          skinIndicies.getY(posIdx),\n          skinIndicies.getZ(posIdx),\n          skinIndicies.getW(posIdx),\n        ];\n\n        weights.forEach((weight, index) => {\n          const boneMatrix = new THREE.Matrix4().fromArray(boneMatricies, indicies[index] * 16);\n          skinned.add(skinVertex.clone().applyMatrix4(boneMatrix).multiplyScalar(weight));\n        });\n\n        const transformed = new THREE.Vector3().fromArray(skinned.applyMatrix4(mesh.bindMatrixInverse).toArray());\n        transformed.applyMatrix4(mesh.matrixWorld);\n\n        bbox.expandByPoint(transformed);\n      }\n    });\n\n    return bbox;\n  }\n\n  private _moveInitialBboxToCenter() {\n    const bboxCenter = this._initialBbox.getCenter(new THREE.Vector3());\n    this._initialBbox.translate(bboxCenter.negate());\n  }\n\n  private _getAllLights(): THREE.Light[] {\n    const lights: THREE.Light[] = [];\n\n    this._scene.traverse(obj => {\n      if ((obj as any).isLight) {\n        lights.push(obj as THREE.Light);\n      }\n    });\n\n    this._cachedLights = lights;\n\n    return lights;\n  }\n\n  /**\n   * Get all {@link https://threejs.org/docs/#api/en/objects/Mesh THREE.Mesh}es inside model if there's any.\n   * @private\n   * @returns Meshes found at model's scene\n   */\n  private _getAllMeshes(): THREE.Mesh[] {\n    const meshes: THREE.Mesh[] = [];\n\n    this._scene.traverse(obj => {\n      if ((obj as any).isMesh) {\n        meshes.push(obj as THREE.Mesh);\n      }\n    });\n\n    this._cachedMeshes = meshes;\n\n    return meshes;\n  }\n\n  private _hasSkinnedMesh(): boolean {\n    return this.meshes.some(mesh => (mesh as THREE.SkinnedMesh).isSkinnedMesh);\n  }\n\n  private _getTransformedBbox(): THREE.Box3 {\n    return this._initialBbox.clone().applyMatrix4(this._scene.matrix);\n  }\n}\n\nexport default Model;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport CameraControl from \"./CameraControl\";\nimport View3DError from \"~/View3DError\";\nimport Camera from \"~/core/camera/Camera\";\nimport { getElement } from \"~/utils\";\nimport { EVENTS, MOUSE_BUTTON } from \"~/consts/event\";\nimport * as ERROR from \"~/consts/error\";\nimport * as DEFAULT from \"~/consts/default\";\n\n/**\n * Control that animates model without user input\n * @category Controls\n */\nclass AutoControl implements CameraControl {\n  // Options\n  private _delay: number;\n  private _delayOnMouseLeave: number;\n  private _speed: number;\n  private _pauseOnHover: boolean;\n  private _canInterrupt: boolean;\n  private _disableOnInterrupt: boolean;\n\n  // Internal values\n  private _targetEl: HTMLElement | null = null;\n  private _enabled: boolean = false;\n  private _interrupted: boolean = false;\n  private _interruptionTimer: number = -1;\n  private _hovering: boolean = false;\n\n  /**\n   * Control's current target element to attach event listeners\n   * @readonly\n   */\n  public get element() { return this._targetEl; }\n  /**\n   * Whether this control is enabled or not\n   * @readonly\n   */\n  public get enabled() { return this._enabled; }\n  /**\n   * Reactivation delay after mouse input in milisecond\n   */\n  public get delay() { return this._delay; }\n  /**\n   * Reactivation delay after mouse leave\n   * This option only works when {@link AutoControl#pauseOnHover pauseOnHover} is activated\n   */\n  public get delayOnMouseLeave() { return this._delayOnMouseLeave; }\n  /**\n   * Y-axis(yaw) rotation speed\n   * @default 1\n   */\n  public get speed() { return this._speed; }\n  /**\n   * Whether to pause rotation on mouse hover\n   * @default false\n   */\n  public get pauseOnHover() { return this._pauseOnHover; }\n  /**\n   * Whether user can interrupt the rotation with click/wheel input\n   * @default true\n   */\n  public get canInterrupt() { return this._canInterrupt; }\n  /**\n   * Whether to disable control on user interrupt\n   * @default false\n   */\n  public get disableOnInterrupt() { return this._disableOnInterrupt; }\n\n  public set delay(val: number) { this._delay = val; }\n  public set delayOnMouseLeave(val: number) { this._delayOnMouseLeave = val; }\n  public set speed(val: number) { this._speed = val; }\n  public set pauseOnHover(val: boolean) { this._pauseOnHover = val; }\n  public set canInterrupt(val: boolean) { this._canInterrupt = val; }\n  public set disableOnInterrupt(val: boolean) { this._disableOnInterrupt = val; }\n\n  /**\n   * Create new RotateControl instance\n   * @param {object} options Options\n   * @param {HTMLElement | string | null} [options.element=null] Attaching element / selector of the element\n   * @param {number} [options.delay=2000] Reactivation delay after mouse input in milisecond\n   * @param {number} [options.delayOnMouseLeave=0] Reactivation delay after mouse leave\n   * @param {number} [options.speed=1] Y-axis(yaw) rotation speed\n   * @param {boolean} [options.pauseOnHover=false] Whether to pause rotation on mouse hover\n   * @param {boolean} [options.canInterrupt=true] Whether user can interrupt the rotation with click/wheel input\n   * @param {boolean} [options.disableOnInterrupt=false] Whether to disable control on user interrupt\n   * @tutorial Adding Controls\n   */\n  constructor({\n    element = DEFAULT.NULL_ELEMENT,\n    delay = 2000,\n    delayOnMouseLeave = 0,\n    speed = 1,\n    pauseOnHover = false,\n    canInterrupt = true,\n    disableOnInterrupt = false,\n  } = {}) {\n    const targetEl = getElement(element);\n    if (targetEl) {\n      this.setElement(targetEl);\n    }\n    this._delay = delay;\n    this._delayOnMouseLeave = delayOnMouseLeave;\n    this._speed = speed;\n    this._pauseOnHover = pauseOnHover;\n    this._canInterrupt = canInterrupt;\n    this._disableOnInterrupt = disableOnInterrupt;\n  }\n\n  /**\n   * Destroy the instance and remove all event listeners attached\n   * This also will reset CSS cursor to intial\n   * @returns {void} Nothing\n   */\n  public destroy(): void {\n    this.disable();\n  }\n\n  /**\n   * Update control by given deltaTime\n   * @param camera Camera to update position\n   * @param deltaTime Number of milisec to update\n   * @returns {void} Nothing\n   */\n  public update(camera: Camera, deltaTime: number): void {\n    if (!this._enabled) return;\n    if (this._interrupted) {\n      if (this._disableOnInterrupt) {\n        this.disable();\n      }\n\n      return;\n    }\n\n    camera.yaw += this._speed * deltaTime / 100;\n  }\n\n  // This is not documetned on purpose as it doesn't do nothing\n  public resize(size: THREE.Vector2) {\n    // DO NOTHING\n  }\n\n  /**\n   * Enable this input and add event listeners\n   * @returns {void} Nothing\n   */\n  public enable(): void {\n    if (this._enabled) return;\n    if (!this._targetEl) {\n      throw new View3DError(ERROR.MESSAGES.ADD_CONTROL_FIRST, ERROR.CODES.ADD_CONTROL_FIRST);\n    }\n\n    const targetEl = this._targetEl;\n\n    targetEl.addEventListener(EVENTS.MOUSE_DOWN, this._onMouseDown, false);\n\n    targetEl.addEventListener(EVENTS.TOUCH_START, this._onTouchStart, false);\n    targetEl.addEventListener(EVENTS.TOUCH_END, this._onTouchEnd, false);\n\n    targetEl.addEventListener(EVENTS.MOUSE_ENTER, this._onMouseEnter, false);\n    targetEl.addEventListener(EVENTS.MOUSE_LEAVE, this._onMouseLeave, false);\n\n    targetEl.addEventListener(EVENTS.WHEEL, this._onWheel, false);\n\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this input and remove all event handlers\n   * @returns {void} Nothing\n   */\n  public disable(): void {\n    if (!this._enabled || !this._targetEl) return;\n\n    const targetEl = this._targetEl;\n\n    targetEl.removeEventListener(EVENTS.MOUSE_DOWN, this._onMouseDown, false);\n    window.removeEventListener(EVENTS.MOUSE_UP, this._onMouseUp, false);\n\n    targetEl.removeEventListener(EVENTS.TOUCH_START, this._onTouchStart, false);\n    targetEl.removeEventListener(EVENTS.TOUCH_END, this._onTouchEnd, false);\n\n    targetEl.removeEventListener(EVENTS.MOUSE_ENTER, this._onMouseEnter, false);\n    targetEl.removeEventListener(EVENTS.MOUSE_LEAVE, this._onMouseLeave, false);\n\n    targetEl.removeEventListener(EVENTS.WHEEL, this._onWheel, false);\n\n    this._enabled = false;\n    this._interrupted = false;\n    this._hovering = false;\n\n    this._clearTimeout();\n  }\n\n  // This does nothing\n  public sync(camera: Camera): void {\n    // Do nothing\n  }\n\n  /**\n   * Set target element to attach event listener\n   * @param element target element\n   * @returns {void} Nothing\n   */\n  public setElement(element: HTMLElement): void {\n    this._targetEl = element;\n  }\n\n  private _onMouseDown = (evt: MouseEvent) => {\n    if (!this._canInterrupt) return;\n    if (evt.button !== MOUSE_BUTTON.LEFT && evt.button !== MOUSE_BUTTON.RIGHT) return;\n\n    this._interrupted = true;\n    this._clearTimeout();\n    window.addEventListener(EVENTS.MOUSE_UP, this._onMouseUp, false);\n  }\n\n  private _onMouseUp = () => {\n    window.removeEventListener(EVENTS.MOUSE_UP, this._onMouseUp, false);\n    this._setUninterruptedAfterDelay(this._delay);\n  }\n\n  private _onTouchStart = () => {\n    if (!this._canInterrupt) return;\n    this._interrupted = true;\n    this._clearTimeout();\n  }\n\n  private _onTouchEnd = () => {\n    this._setUninterruptedAfterDelay(this._delay);\n  }\n\n  private _onMouseEnter = () => {\n    if (!this._pauseOnHover) return;\n    this._interrupted = true;\n    this._hovering = true;\n  }\n\n  private _onMouseLeave = () => {\n    if (!this._pauseOnHover) return;\n    this._hovering = false;\n    this._setUninterruptedAfterDelay(this._delayOnMouseLeave);\n  }\n\n  private _onWheel = () => {\n    if (!this._canInterrupt) return;\n    this._interrupted = true;\n    this._setUninterruptedAfterDelay(this._delay);\n  }\n\n  private _setUninterruptedAfterDelay(delay: number): void {\n    if (this._hovering) return;\n\n    this._clearTimeout();\n\n    if (delay > 0) {\n      this._interruptionTimer = window.setTimeout(() => {\n        this._interrupted = false;\n        this._interruptionTimer = -1;\n      }, delay);\n    } else {\n      this._interrupted = false;\n      this._interruptionTimer = -1;\n    }\n  }\n\n  private _clearTimeout(): void {\n    if (this._interruptionTimer >= 0) {\n      window.clearTimeout(this._interruptionTimer);\n      this._interruptionTimer = -1;\n    }\n  }\n}\n\nexport default AutoControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nexport const CURSOR: {\n  GRAB: \"grab\",\n  GRABBING: \"grabbing\",\n} = {\n  GRAB: \"grab\",\n  GRABBING: \"grabbing\",\n};\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport CameraControl from \"./CameraControl\";\nimport Motion from \"./Motion\";\nimport View3DError from \"~/View3DError\";\nimport Camera from \"~/core/camera/Camera\";\nimport { getElement } from \"~/utils\";\nimport { EVENTS, MOUSE_BUTTON } from \"~/consts/event\";\nimport { CURSOR } from \"~/consts/css\";\nimport * as DEFAULT from \"~/consts/default\";\nimport * as ERROR from \"~/consts/error\";\nimport { ValueOf } from \"~/types/internal\";\n\n/**\n * Model's rotation control that supports both mouse & touch\n * @category Controls\n */\nclass RotateControl implements CameraControl {\n  // Options\n  private _useGrabCursor: boolean;\n  private _scaleToElement: boolean;\n  private _userScale: THREE.Vector2;\n\n  // Internal values\n  private _targetEl: HTMLElement | null = null;\n  private _xMotion: Motion;\n  private _yMotion: Motion;\n  private _screenScale: THREE.Vector2 = new THREE.Vector2(0, 0);\n  private _prevPos: THREE.Vector2 = new THREE.Vector2(0, 0);\n  private _enabled: boolean = false;\n\n  /**\n   * Control's current target element to attach event listeners\n   * @readonly\n   */\n  public get element() { return this._targetEl; }\n  /**\n   * Scale factor for panning, x is for horizontal and y is for vertical panning.\n   * @type THREE.Vector2\n   * @see https://threejs.org/docs/#api/en/math/Vector2\n   * @example\n   * const rotateControl = new View3D.RotateControl();\n   * rotateControl.scale.setX(2);\n   */\n  public get scale() { return this._userScale; }\n  /**\n   * Whether to apply CSS style `cursor: grab` on the target element or not\n   * @default true\n   * @example\n   * const rotateControl = new View3D.RotateControl();\n   * rotateControl.useGrabCursor = true;\n   */\n  public get useGrabCursor() { return this._useGrabCursor; }\n  /**\n   * Whether to scale control to fit element size.\n   * When this is true and {@link RotateControl#scale scale.x} is 1, panning through element's width will make 3d model's yaw rotate 360°.\n   * When this is true and {@link RotateControl#scale scale.y} is 1, panning through element's height will make 3d model's pitch rotate 180°.\n   * @default true\n   * @example\n   * import View3D, { RotateControl } from \"@egjs/view3d\";\n   * const view3d = new View3D(\"#view3d-canvas\");\n   * const rotateControl = new RotateControl();\n   * rotateControl.scaleToElement = true;\n   * view3d.controller.add(rotateControl);\n   * view3d.resize();\n   */\n  public get scaleToElement() { return this._scaleToElement; }\n  /**\n   * Whether this control is enabled or not\n   * @readonly\n   */\n  public get enabled() { return this._enabled; }\n\n  public set scale(val: THREE.Vector2) {\n    this._userScale.copy(val);\n  }\n  public set useGrabCursor(val: boolean) {\n    if (!val) {\n      this._setCursor(\"\");\n      this._useGrabCursor = false;\n    } else {\n      this._useGrabCursor = true;\n      this._setCursor(CURSOR.GRAB);\n    }\n  }\n  public set scaleToElement(val: boolean) {\n    this._scaleToElement = val;\n  }\n\n  /**\n   * Create new RotateControl instance\n   * @param {object} options Options\n   * @param {HTMLElement | null} [options.element] Target element.\n   * @param {number} [options.duration=500] Motion's duration.\n   * @param {function} [options.easing=(x: number) => 1 - Math.pow(1 - x, 3)] Motion's easing function.\n   * @param {THREE.Vector2} [options.scale=new THREE.Vector2(1, 1)] Scale factor for panning, x is for horizontal and y is for vertical panning.\n   * @param {boolean} [options.useGrabCursor=true] Whether to apply CSS style `cursor: grab` on the target element or not.\n   * @param {boolean} [options.scaleToElement=true] Whether to scale control to fit element size.\n   * @tutorial Adding Controls\n   */\n  constructor({\n    element = DEFAULT.NULL_ELEMENT,\n    duration = DEFAULT.ANIMATION_DURATION,\n    easing = DEFAULT.EASING,\n    scale = new THREE.Vector2(1, 1),\n    useGrabCursor = true,\n    scaleToElement = true,\n  } = {}) {\n    const targetEl = getElement(element);\n    if (targetEl) {\n      this.setElement(targetEl);\n    }\n    this._userScale = scale;\n    this._useGrabCursor = useGrabCursor;\n    this._scaleToElement = scaleToElement;\n    this._xMotion = new Motion({ duration, range: DEFAULT.INFINITE_RANGE, easing });\n    this._yMotion = new Motion({ duration, range: DEFAULT.PITCH_RANGE, easing });\n  }\n\n  /**\n   * Destroy the instance and remove all event listeners attached\n   * This also will reset CSS cursor to intial\n   * @returns {void} Nothing\n   */\n  public destroy(): void {\n    this.disable();\n  }\n\n  /**\n   * Update control by given deltaTime\n   * @param camera Camera to update position\n   * @param deltaTime Number of milisec to update\n   * @returns {void} Nothing\n   */\n  public update(camera: Camera, deltaTime: number): void {\n    const xMotion = this._xMotion;\n    const yMotion = this._yMotion;\n\n    const delta = new THREE.Vector2(\n      xMotion.update(deltaTime),\n      yMotion.update(deltaTime),\n    );\n\n    camera.yaw += delta.x;\n    camera.pitch += delta.y;\n  }\n\n  /**\n   * Resize control to match target size\n   * This method is only meaningful when {@link RotateControl#scaleToElement scaleToElement} is enabled\n   * @param size {@link https://threejs.org/docs/#api/en/math/Vector2 THREE.Vector2} instance of width(x), height(y)\n   */\n  public resize(size: THREE.Vector2) {\n    this._screenScale.set(360 / size.x, 180 / size.y);\n  }\n\n  /**\n   * Enable this input and add event listeners\n   * @returns {void} Nothing\n   */\n  public enable(): void {\n    if (this._enabled) return;\n    if (!this._targetEl) {\n      throw new View3DError(ERROR.MESSAGES.ADD_CONTROL_FIRST, ERROR.CODES.ADD_CONTROL_FIRST);\n    }\n\n    const targetEl = this._targetEl;\n\n    targetEl.addEventListener(EVENTS.MOUSE_DOWN, this._onMouseDown, false);\n\n    targetEl.addEventListener(EVENTS.TOUCH_START, this._onTouchStart, false);\n    targetEl.addEventListener(EVENTS.TOUCH_MOVE, this._onTouchMove, false);\n    targetEl.addEventListener(EVENTS.TOUCH_END, this._onTouchEnd, false);\n\n    this._enabled = true;\n    this._setCursor(CURSOR.GRAB);\n  }\n\n  /**\n   * Disable this input and remove all event handlers\n   * @returns {void} Nothing\n   */\n  public disable(): void {\n    if (!this._enabled || !this._targetEl) return;\n\n    const targetEl = this._targetEl;\n\n    targetEl.removeEventListener(EVENTS.MOUSE_DOWN, this._onMouseDown, false);\n    window.removeEventListener(EVENTS.MOUSE_MOVE, this._onMouseMove, false);\n    window.removeEventListener(EVENTS.MOUSE_UP, this._onMouseUp, false);\n\n    targetEl.removeEventListener(EVENTS.TOUCH_START, this._onTouchStart, false);\n    targetEl.removeEventListener(EVENTS.TOUCH_MOVE, this._onTouchMove, false);\n    targetEl.removeEventListener(EVENTS.TOUCH_END, this._onTouchEnd, false);\n\n    this._setCursor(\"\");\n    this._enabled = false;\n  }\n\n  /**\n   * Synchronize this control's state to given camera position\n   * @param camera Camera to match state\n   * @returns {void} Nothing\n   */\n  public sync(camera: Camera): void {\n    this._xMotion.reset(camera.yaw);\n    this._yMotion.reset(camera.pitch);\n  }\n\n  /**\n   * Set target element to attach event listener\n   * @param element target element\n   * @returns {void} Nothing\n   */\n  public setElement(element: HTMLElement): void {\n    this._targetEl = element;\n    this.resize(new THREE.Vector2(element.offsetWidth, element.offsetHeight));\n  }\n\n  private _setCursor(val: ValueOf<typeof CURSOR> | \"\") {\n    const targetEl = this._targetEl;\n    if (!this._useGrabCursor || !targetEl || !this._enabled) return;\n\n    targetEl.style.cursor = val;\n  }\n\n  private _onMouseDown = (evt: MouseEvent) => {\n    if (evt.button !== MOUSE_BUTTON.LEFT) return;\n\n    const targetEl = this._targetEl!;\n    evt.preventDefault();\n\n    targetEl.focus ? targetEl.focus() : window.focus();\n\n    this._prevPos.set(evt.clientX, evt.clientY);\n    window.addEventListener(EVENTS.MOUSE_MOVE, this._onMouseMove, false);\n    window.addEventListener(EVENTS.MOUSE_UP, this._onMouseUp, false);\n\n    this._setCursor(CURSOR.GRABBING);\n  }\n\n  private _onMouseMove = (evt: MouseEvent) => {\n    evt.preventDefault();\n\n    const prevPos = this._prevPos;\n    const rotateDelta = new THREE.Vector2(evt.clientX, evt.clientY)\n      .sub(prevPos)\n      .multiply(this._userScale);\n\n    if (this._scaleToElement) {\n      rotateDelta.multiply(this._screenScale);\n    }\n\n    this._xMotion.setEndDelta(rotateDelta.x);\n    this._yMotion.setEndDelta(rotateDelta.y);\n\n    prevPos.set(evt.clientX, evt.clientY);\n  }\n\n  private _onMouseUp = () => {\n    this._prevPos.set(0, 0);\n    window.removeEventListener(EVENTS.MOUSE_MOVE, this._onMouseMove, false);\n    window.removeEventListener(EVENTS.MOUSE_UP, this._onMouseUp, false);\n\n    this._setCursor(CURSOR.GRAB);\n  }\n\n  private _onTouchStart = (evt: TouchEvent) => {\n    evt.preventDefault();\n\n    const touch = evt.touches[0];\n    this._prevPos.set(touch.clientX, touch.clientY);\n  }\n\n  private _onTouchMove = (evt: TouchEvent) => {\n    // Only the one finger motion should be considered\n    if (evt.touches.length > 1) return;\n\n    if (evt.cancelable !== false) {\n      evt.preventDefault();\n    }\n    evt.stopPropagation();\n\n    const touch = evt.touches[0];\n\n    const prevPos = this._prevPos;\n    const rotateDelta = new THREE.Vector2(touch.clientX, touch.clientY)\n      .sub(prevPos)\n      .multiply(this._userScale);\n\n    if (this._scaleToElement) {\n      rotateDelta.multiply(this._screenScale);\n    }\n\n    this._xMotion.setEndDelta(rotateDelta.x);\n    this._yMotion.setEndDelta(rotateDelta.y);\n\n    prevPos.set(touch.clientX, touch.clientY);\n  }\n\n  private _onTouchEnd = (evt: TouchEvent) => {\n    const touch = evt.touches[0];\n    if (touch) {\n      this._prevPos.set(touch.clientX, touch.clientY);\n    } else {\n      this._prevPos.set(0, 0);\n    }\n  }\n}\n\nexport default RotateControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport CameraControl from \"./CameraControl\";\nimport Motion from \"./Motion\";\nimport View3DError from \"~/View3DError\";\nimport Camera from \"~/core/camera/Camera\";\nimport { getElement } from \"~/utils\";\nimport { EVENTS, MOUSE_BUTTON } from \"~/consts/event\";\nimport { CURSOR } from \"~/consts/css\";\nimport * as DEFAULT from \"~/consts/default\";\nimport * as ERROR from \"~/consts/error\";\nimport { ValueOf } from \"~/types/internal\";\n\n/**\n * Model's translation control that supports both mouse & touch\n * @category Controls\n */\nclass TranslateControl implements CameraControl {\n  // Options\n  private _useGrabCursor: boolean;\n  private _scaleToElement: boolean;\n  private _userScale: THREE.Vector2;\n\n  // Internal values\n  private _targetEl: HTMLElement | null = null;\n  private _enabled: boolean = false;\n  // Sometimes, touchstart for second finger doesn't triggered.\n  // This flag checks whether that happened\n  private _touchInitialized: boolean = false;\n  private _xMotion: Motion;\n  private _yMotion: Motion;\n  private _prevPos: THREE.Vector2 = new THREE.Vector2(0, 0);\n  private _screenSize: THREE.Vector2 = new THREE.Vector2(0, 0);\n\n  /**\n   * Control's current target element to attach event listeners\n   * @readonly\n   */\n  public get element() { return this._targetEl; }\n  /**\n   * Scale factor for translation\n   * @type THREE.Vector2\n   * @see https://threejs.org/docs/#api/en/math/Vector2\n   * @example\n   * import { TranslateControl } from \"@egjs/view3d\";\n   * const translateControl = new TranslateControl();\n   * translateControl.scale.set(2, 2);\n   */\n  public get scale() { return this._userScale; }\n  /**\n   * Whether to apply CSS style `cursor: grab` on the target element or not\n   * @default true\n   * @example\n   * import { TranslateControl } from \"@egjs/view3d\";\n   * const translateControl = new TranslateControl();\n   * translateControl.useGrabCursor = true;\n   */\n  public get useGrabCursor() { return this._useGrabCursor; }\n  /**\n   * Scale control to fit element size.\n   * When this is true, camera's pivot change will correspond same amount you've dragged.\n   * @default true\n   * @example\n   * import View3D, { TranslateControl } from \"@egjs/view3d\";\n   * const view3d = new View3D(\"#view3d-canvas\");\n   * const translateControl = new TranslateControl();\n   * translateControl.scaleToElement = true;\n   * view3d.controller.add(translateControl);\n   * view3d.resize();\n   */\n  public get scaleToElement() { return this._scaleToElement; }\n  /**\n   * Whether this control is enabled or not\n   * @readonly\n   */\n  public get enabled() { return this._enabled; }\n\n  public set scale(val: THREE.Vector2) {\n    this._userScale.copy(val);\n  }\n  public set useGrabCursor(val: boolean) {\n    if (!val) {\n      this._setCursor(\"\");\n      this._useGrabCursor = false;\n    } else {\n      this._useGrabCursor = true;\n      this._setCursor(CURSOR.GRAB);\n    }\n  }\n  public set scaleToElement(val: boolean) {\n    this._scaleToElement = val;\n  }\n\n  /**\n   * Create new TranslateControl instance\n   * @param {object} options Options\n   * @param {HTMLElement | null} [options.element] Target element.\n   * @param {function} [options.easing=(x: number) => 1 - Math.pow(1 - x, 3)] Motion's easing function.\n   * @param {THREE.Vector2} [options.scale=new THREE.Vector2(1, 1)] Scale factor for translation.\n   * @param {boolean} [options.useGrabCursor=true] Whether to apply CSS style `cursor: grab` on the target element or not.\n   * @param {boolean} [options.scaleToElement=true] Whether to scale control to fit element size.\n   * @tutorial Adding Controls\n   */\n  constructor({\n    element = DEFAULT.NULL_ELEMENT,\n    easing = DEFAULT.EASING,\n    scale = new THREE.Vector2(1, 1),\n    useGrabCursor = true,\n    scaleToElement = true,\n  } = {}) {\n    const targetEl = getElement(element);\n    if (targetEl) {\n      this.setElement(targetEl);\n    }\n    this._xMotion = new Motion({ duration: 0, range: DEFAULT.INFINITE_RANGE, easing });\n    this._yMotion = new Motion({ duration: 0, range: DEFAULT.INFINITE_RANGE, easing });\n    this._userScale = scale;\n    this._useGrabCursor = useGrabCursor;\n    this._scaleToElement = scaleToElement;\n  }\n\n  /**\n   * Destroy the instance and remove all event listeners attached\n   * This also will reset CSS cursor to intial\n   * @returns {void} Nothing\n   */\n  public destroy(): void {\n    this.disable();\n  }\n\n  /**\n   * Update control by given deltaTime\n   * @param deltaTime Number of milisec to update\n   * @returns {void} Nothing\n   */\n  public update(camera: Camera, deltaTime: number): void {\n    const screenSize = this._screenSize;\n\n    const delta = new THREE.Vector2(\n      this._xMotion.update(deltaTime),\n      this._yMotion.update(deltaTime),\n    );\n\n    const viewXDir = new THREE.Vector3(1, 0, 0).applyQuaternion(camera.threeCamera.quaternion);\n    const viewYDir = new THREE.Vector3(0, 1, 0).applyQuaternion(camera.threeCamera.quaternion);\n\n    if (this._scaleToElement) {\n      const screenScale = new THREE.Vector2(camera.renderWidth, camera.renderHeight).divide(screenSize);\n      delta.multiply(screenScale);\n    }\n\n    camera.pivot.add(viewXDir.multiplyScalar(delta.x));\n    camera.pivot.add(viewYDir.multiplyScalar(delta.y));\n  }\n\n  /**\n   * Resize control to match target size\n   * This method is only meaningful when {@link RotateControl#scaleToElementSize scaleToElementSize} is enabled\n   * @param size {@link https://threejs.org/docs/#api/en/math/Vector2 THREE.Vector2} instance of width(x), height(y)\n   */\n  public resize(size: THREE.Vector2) {\n    const screenSize = this._screenSize;\n\n    screenSize.copy(size);\n  }\n\n  /**\n   * Enable this input and add event listeners\n   * @returns {void} Nothing\n   */\n  public enable(): void {\n    if (this._enabled) return;\n    if (!this._targetEl) {\n      throw new View3DError(ERROR.MESSAGES.ADD_CONTROL_FIRST, ERROR.CODES.ADD_CONTROL_FIRST);\n    }\n\n    const targetEl = this._targetEl;\n\n    targetEl.addEventListener(EVENTS.MOUSE_DOWN, this._onMouseDown, false);\n\n    targetEl.addEventListener(EVENTS.TOUCH_START, this._onTouchStart, false);\n    targetEl.addEventListener(EVENTS.TOUCH_MOVE, this._onTouchMove, false);\n    targetEl.addEventListener(EVENTS.TOUCH_END, this._onTouchEnd, false);\n\n    targetEl.addEventListener(EVENTS.CONTEXT_MENU, this._onContextMenu, false);\n\n    this._enabled = true;\n    this._setCursor(CURSOR.GRAB);\n  }\n\n  /**\n   * Disable this input and remove all event handlers\n   * @returns {void} Nothing\n   */\n  public disable(): void {\n    if (!this._enabled || !this._targetEl) return;\n\n    const targetEl = this._targetEl;\n\n    targetEl.removeEventListener(EVENTS.MOUSE_DOWN, this._onMouseDown, false);\n    window.removeEventListener(EVENTS.MOUSE_MOVE, this._onMouseMove, false);\n    window.removeEventListener(EVENTS.MOUSE_UP, this._onMouseUp, false);\n\n    targetEl.removeEventListener(EVENTS.TOUCH_START, this._onTouchStart, false);\n    targetEl.removeEventListener(EVENTS.TOUCH_MOVE, this._onTouchMove, false);\n    targetEl.removeEventListener(EVENTS.TOUCH_END, this._onTouchEnd, false);\n\n    targetEl.removeEventListener(EVENTS.CONTEXT_MENU, this._onContextMenu, false);\n\n    this._setCursor(\"\");\n    this._enabled = false;\n  }\n\n  /**\n   * Synchronize this control's state to given camera position\n   * @param camera Camera to match state\n   * @returns {void} Nothing\n   */\n  public sync(camera: Camera): void {\n    this._xMotion.reset(0);\n    this._yMotion.reset(0);\n  }\n\n  /**\n   * Set target element to attach event listener\n   * @param element target element\n   * @returns {void} Nothing\n   */\n  public setElement(element: HTMLElement): void {\n    this._targetEl = element;\n    this.resize(new THREE.Vector2(element.offsetWidth, element.offsetHeight));\n  }\n\n  private _setCursor(val: ValueOf<typeof CURSOR> | \"\") {\n    const targetEl = this._targetEl;\n    if (!this._useGrabCursor || !targetEl || !this._enabled) return;\n\n    targetEl.style.cursor = val;\n  }\n\n  private _onMouseDown = (evt: MouseEvent) => {\n    if (evt.button !== MOUSE_BUTTON.RIGHT) return;\n\n    const targetEl = this._targetEl!;\n    evt.preventDefault();\n\n    targetEl.focus ? targetEl.focus() : window.focus();\n\n    this._prevPos.set(evt.clientX, evt.clientY);\n    window.addEventListener(EVENTS.MOUSE_MOVE, this._onMouseMove, false);\n    window.addEventListener(EVENTS.MOUSE_UP, this._onMouseUp, false);\n\n    this._setCursor(CURSOR.GRABBING);\n  }\n\n  private _onMouseMove = (evt: MouseEvent) => {\n    evt.preventDefault();\n\n    const prevPos = this._prevPos;\n    const delta = new THREE.Vector2(evt.clientX, evt.clientY)\n      .sub(prevPos)\n      .multiply(this._userScale);\n\n    // X value is negated to match cursor direction\n    this._xMotion.setEndDelta(-delta.x);\n    this._yMotion.setEndDelta(delta.y);\n\n    prevPos.set(evt.clientX, evt.clientY);\n  }\n\n  private _onMouseUp = () => {\n    this._prevPos.set(0, 0);\n    window.removeEventListener(EVENTS.MOUSE_MOVE, this._onMouseMove, false);\n    window.removeEventListener(EVENTS.MOUSE_UP, this._onMouseUp, false);\n\n    this._setCursor(CURSOR.GRAB);\n  }\n\n  private _onTouchStart = (evt: TouchEvent) => {\n    // Only the two finger motion should be considered\n    if (evt.touches.length !== 2) return;\n    evt.preventDefault();\n\n    this._prevPos.copy(this._getTouchesMiddle(evt.touches));\n    this._touchInitialized = true;\n  }\n\n  private _onTouchMove = (evt: TouchEvent) => {\n    // Only the two finger motion should be considered\n    if (evt.touches.length !== 2) return;\n\n    if (evt.cancelable !== false) {\n      evt.preventDefault();\n    }\n    evt.stopPropagation();\n\n    const prevPos = this._prevPos;\n    const middlePoint = this._getTouchesMiddle(evt.touches);\n\n    if (!this._touchInitialized) {\n      prevPos.copy(middlePoint);\n      this._touchInitialized = true;\n      return;\n    }\n\n    const delta = new THREE.Vector2()\n      .subVectors(middlePoint, prevPos)\n      .multiply(this._userScale);\n\n    // X value is negated to match cursor direction\n    this._xMotion.setEndDelta(-delta.x);\n    this._yMotion.setEndDelta(delta.y);\n\n    prevPos.copy(middlePoint);\n  }\n\n  private _onTouchEnd = (evt: TouchEvent) => {\n    // Only the two finger motion should be considered\n    if (evt.touches.length !== 2) {\n      this._touchInitialized = false;\n      return;\n    }\n\n    // Three fingers to two fingers\n    this._prevPos.copy(this._getTouchesMiddle(evt.touches));\n    this._touchInitialized = true;\n  }\n\n  private _getTouchesMiddle(touches: TouchEvent[\"touches\"]): THREE.Vector2 {\n    return new THREE.Vector2(\n      touches[0].clientX + touches[1].clientX,\n      touches[0].clientY + touches[1].clientY,\n    ).multiplyScalar(0.5);\n  }\n\n  private _onContextMenu = (evt: MouseEvent) => {\n    evt.preventDefault();\n  }\n}\n\nexport default TranslateControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport CameraControl from \"./CameraControl\";\nimport Motion from \"./Motion\";\nimport View3DError from \"~/View3DError\";\nimport Camera from \"~/core/camera/Camera\";\nimport { getElement } from \"~/utils\";\nimport { EVENTS } from \"~/consts/event\";\nimport * as DEFAULT from \"~/consts/default\";\nimport * as ERROR from \"~/consts/error\";\n\n/**\n * Distance controller handling both mouse wheel and pinch zoom\n * @category Controls\n */\nclass DistanceControl implements CameraControl {\n  // Options\n  private _scale: number = 1;\n\n  // Internal values\n  private _targetEl: HTMLElement | null = null;\n  private _scaleModifier: number = 0.25;\n  private _motion: Motion;\n  private _prevTouchDistance: number = -1;\n  private _enabled: boolean = false;\n\n  /**\n   * Control's current target element to attach event listeners\n   * @readonly\n   */\n  public get element() { return this._targetEl; }\n  /**\n   * Scale factor of the distance\n   * @type number\n   * @example\n   * import { DistanceControl } from \"@egjs/view3d\";\n   * const distanceControl = new DistanceControl();\n   * distanceControl.scale = 2;\n   */\n  public get scale() { return this._scale; }\n  /**\n   * Whether this control is enabled or not\n   * @readonly\n   */\n  public get enabled() { return this._enabled; }\n\n  public set scale(val: number) { this._scale = val; }\n\n  /**\n   * Create new DistanceControl instance\n   * @tutorial Adding Controls\n   * @param {object} options Options\n   * @param {HTMLElement | string | null} [options.element=null] Attaching element / selector of the element.\n   * @param {number} [options.duration=500] Motion's duration.\n   * @param {object} [options.range={min: 0, max: 500}] Motion's range.\n   * @param {function} [options.easing=(x: number) => 1 - Math.pow(1 - x, 3)] Motion's easing function.\n   */\n  constructor({\n    element = DEFAULT.NULL_ELEMENT,\n    duration = DEFAULT.ANIMATION_DURATION,\n    range = DEFAULT.DISTANCE_RANGE,\n    easing = DEFAULT.EASING,\n  } = {}) {\n    const targetEl = getElement(element);\n    if (targetEl) {\n      this.setElement(targetEl);\n    }\n    this._motion = new Motion({ duration, range, easing });\n  }\n\n  /**\n   * Destroy the instance and remove all event listeners attached\n   * @returns {void} Nothing\n   */\n  public destroy(): void {\n    this.disable();\n  }\n\n  /**\n   * Update control by given deltaTime\n   * @param camera Camera to update position\n   * @param deltaTime Number of milisec to update\n   * @returns {void} Nothing\n   */\n  public update(camera: Camera, deltaTime: number): void {\n    const motion = this._motion;\n\n    camera.distance += motion.update(deltaTime);\n  }\n\n  // This is not documetned on purpose as it doesn't do nothing\n  public resize(size: THREE.Vector2) {\n    // DO NOTHING\n  }\n\n  /**\n   * Enable this input and add event listeners\n   * @returns {void} Nothing\n   */\n  public enable(): void {\n    if (this._enabled) return;\n    if (!this._targetEl) {\n      throw new View3DError(ERROR.MESSAGES.ADD_CONTROL_FIRST, ERROR.CODES.ADD_CONTROL_FIRST);\n    }\n\n    const targetEl = this._targetEl;\n\n    targetEl.addEventListener(EVENTS.WHEEL, this._onWheel, false);\n    targetEl.addEventListener(EVENTS.TOUCH_MOVE, this._onTouchMove, false);\n    targetEl.addEventListener(EVENTS.TOUCH_END, this._onTouchEnd, false);\n\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this input and remove all event handlers\n   * @returns {void} Nothing\n   */\n  public disable(): void {\n    if (!this._enabled || !this._targetEl) return;\n\n    const targetEl = this._targetEl;\n\n    targetEl.removeEventListener(EVENTS.WHEEL, this._onWheel, false);\n    targetEl.removeEventListener(EVENTS.TOUCH_MOVE, this._onTouchMove, false);\n    targetEl.removeEventListener(EVENTS.TOUCH_END, this._onTouchEnd, false);\n\n    this._enabled = false;\n  }\n\n  /**\n   * Synchronize this control's state to given camera position\n   * @param camera Camera to match state\n   * @returns {void} Nothing\n   */\n  public sync(camera: Camera): void {\n    this._motion.range.min = camera.minDistance;\n    this._motion.range.max = camera.maxDistance;\n    this._motion.reset(camera.distance);\n  }\n\n  /**\n   * Set target element to attach event listener\n   * @param element target element\n   * @returns {void} Nothing\n   */\n  public setElement(element: HTMLElement): void {\n    this._targetEl = element;\n  }\n\n  private _onWheel = (evt: MouseWheelEvent) => {\n    if (evt.deltaY === 0) return;\n\n    evt.preventDefault();\n    evt.stopPropagation();\n\n    const animation = this._motion;\n    const delta = this._scale * this._scaleModifier * evt.deltaY;\n\n    animation.setEndDelta(delta);\n  }\n\n  private _onTouchMove = (evt: TouchEvent) => {\n    const touches = evt.touches;\n    if (touches.length !== 2) return;\n\n    if (evt.cancelable !== false) {\n      evt.preventDefault();\n    }\n    evt.stopPropagation();\n\n    const animation = this._motion;\n    const prevTouchDistance = this._prevTouchDistance;\n\n    const touchPoint1 = new THREE.Vector2(touches[0].pageX, touches[0].pageY);\n    const touchPoint2 = new THREE.Vector2(touches[1].pageX, touches[1].pageY);\n    const touchDiff = touchPoint1.sub(touchPoint2);\n    const touchDistance = touchDiff.length() * this._scale * this._scaleModifier;\n    const delta = -(touchDistance - prevTouchDistance);\n\n    this._prevTouchDistance = touchDistance;\n\n    if (prevTouchDistance < 0) return;\n\n    animation.setEndDelta(delta);\n  }\n\n  private _onTouchEnd = () => {\n    this._prevTouchDistance = -1;\n  }\n}\n\nexport default DistanceControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport CameraControl from \"./CameraControl\";\nimport RotateControl from \"./RotateControl\";\nimport TranslateControl from \"./TranslateControl\";\nimport DistanceControl from \"./DistanceControl\";\nimport Camera from \"~/core/camera/Camera\";\nimport View3DError from \"~/View3DError\";\nimport { getElement } from \"~/utils\";\nimport * as ERROR from \"~/consts/error\";\nimport * as DEFAULT from \"~/consts/default\";\n\n/**\n * Aggregation of {@link RotateControl}, {@link TranslateControl}, and {@link DistanceControl}.\n * @category Controls\n */\nclass OrbitControl implements CameraControl {\n  private _targetEl: HTMLElement | null;\n  private _rotateControl: RotateControl;\n  private _translateControl: TranslateControl;\n  private _distanceControl: DistanceControl;\n  private _enabled: boolean = false;\n\n  /**\n   * Control's current target element to attach event listeners\n   * @readonly\n   */\n  public get element() { return this._targetEl; }\n  /**\n   * Whether this control is enabled or not\n   * @readonly\n   */\n  public get enabled() { return this._enabled; }\n  /**\n   * {@link RotateControl} of this control\n   */\n  public get rotate() { return this._rotateControl; }\n  /**\n   * {@link TranslateControl} of this control\n   */\n  public get translate() { return this._translateControl; }\n  /**\n   * {@link DistanceControl} of this control\n   */\n  public get distance() { return this._distanceControl; }\n\n  /**\n   * Create new OrbitControl instance\n   * @param {object} options Options\n   * @param {HTMLElement | string | null} [options.element=null] Attaching element / selector of the element\n   * @param {object} [options.rotate={}] Constructor options of {@link RotateControl}\n   * @param {object} [options.translate={}] Constructor options of {@link TranslateControl}\n   * @param {object} [options.distance={}] Constructor options of {@link DistanceControl}\n   * @tutorial Adding Controls\n   */\n  constructor({\n    element = DEFAULT.NULL_ELEMENT,\n    rotate = {},\n    translate = {},\n    distance = {},\n  }: Partial<{\n    rotate: ConstructorParameters<typeof RotateControl>[0],\n    translate: ConstructorParameters<typeof TranslateControl>[0],\n    distance: ConstructorParameters<typeof DistanceControl>[0],\n    element: HTMLElement | string | null,\n  }> = {}) {\n    this._targetEl = getElement(element);\n    this._rotateControl = new RotateControl({ ...rotate, element: rotate.element || this._targetEl });\n    this._translateControl = new TranslateControl({ ...translate, element: translate.element || this._targetEl });\n    this._distanceControl = new DistanceControl({ ...distance, element: distance.element || this._targetEl });\n  }\n\n  /**\n   * Destroy the instance and remove all event listeners attached\n   * This also will reset CSS cursor to intial\n   * @returns {void} Nothing\n   */\n  public destroy(): void {\n    this._rotateControl.destroy();\n    this._translateControl.destroy();\n    this._distanceControl.destroy();\n  }\n\n  /**\n   * Update control by given deltaTime\n   * @param camera Camera to update position\n   * @param deltaTime Number of milisec to update\n   * @returns {void} Nothing\n   */\n  public update(camera: Camera, deltaTime: number): void {\n    this._rotateControl.update(camera, deltaTime);\n    this._translateControl.update(camera, deltaTime);\n    this._distanceControl.update(camera, deltaTime);\n  }\n\n  /**\n   * Resize control to match target size\n   * @param size {@link https://threejs.org/docs/#api/en/math/Vector2 THREE.Vector2} instance of width(x), height(y)\n   */\n  public resize(size: THREE.Vector2) {\n    this._rotateControl.resize(size);\n    this._translateControl.resize(size);\n    this._distanceControl.resize(size);\n  }\n\n  /**\n   * Enable this control and add event listeners\n   * @returns {void} Nothingß\n   */\n  public enable(): void {\n    if (this._enabled) return;\n    if (!this._targetEl) {\n      throw new View3DError(ERROR.MESSAGES.ADD_CONTROL_FIRST, ERROR.CODES.ADD_CONTROL_FIRST);\n    }\n\n    this._rotateControl.enable();\n    this._translateControl.enable();\n    this._distanceControl.enable();\n\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this control and remove all event handlers\n   * @returns {void} Nothing\n   */\n  public disable(): void {\n    if (!this._enabled || !this._targetEl) return;\n\n    this._rotateControl.disable();\n    this._translateControl.disable();\n    this._distanceControl.disable();\n\n    this._enabled = false;\n  }\n\n  /**\n   * Synchronize this control's state to given camera position\n   * @param camera Camera to match state\n   * @returns {void} Nothing\n   */\n  public sync(camera: Camera): void {\n    this._rotateControl.sync(camera);\n    this._translateControl.sync(camera);\n    this._distanceControl.sync(camera);\n  }\n\n  /**\n   * Set target element to attach event listener\n   * @param element target element\n   * @returns {void} Nothing\n   */\n  public setElement(element: HTMLElement): void {\n    this._targetEl = element;\n    this._rotateControl.setElement(element);\n    this._translateControl.setElement(element);\n    this._distanceControl.setElement(element);\n  }\n}\n\nexport default OrbitControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\nimport * as THREE from \"three\";\nimport { DRACOLoader } from \"three/examples/jsm/loaders/DRACOLoader\";\nimport Model from \"~/core/Model\";\nimport * as DEFAULT from \"~/consts/default\";\nimport { DracoLoadOption } from \"~/types/external\";\n\n/**\n * DracoLoader\n * @category Loaders\n */\nclass DracoLoader {\n  /**\n   * Load new DRC model from the given url\n   * @param url URL to fetch .drc file\n   * @param options Options for a loaded model\n   * @returns Promise that resolves {@link Model}\n   */\n  public load(url: string, options: Partial<DracoLoadOption> = {}): Promise<Model> {\n    const loader = new DRACOLoader();\n    loader.setCrossOrigin(\"anonymous\");\n    loader.setDecoderPath(DEFAULT.DRACO_DECODER_URL);\n    loader.manager = new THREE.LoadingManager();\n\n    return new Promise((resolve, reject) => {\n      loader.load(url, geometry => {\n        const model = this._parseToModel(geometry, options);\n        loader.dispose();\n        resolve(model);\n      }, undefined, err => {\n        loader.dispose();\n        reject(err);\n      });\n    });\n  }\n\n  private _parseToModel(geometry: THREE.BufferGeometry, {\n    fixSkinnedBbox = false,\n    color = 0xffffff,\n    point = false,\n    pointOptions = {}\n  }: Partial<DracoLoadOption> = {}): Model {\n    geometry.computeVertexNormals();\n\n\t\tconst material = point\n      ? new THREE.PointsMaterial({ color, ...pointOptions })\n      : new THREE.MeshStandardMaterial({ color });\n\t\tconst mesh = point\n      ? new THREE.Points(geometry, material)\n      : new THREE.Mesh(geometry, material);\n\n    const model = new Model({\n      scenes: [mesh],\n      fixSkinnedBbox,\n    });\n\n    return model;\n  }\n}\n\nexport default DracoLoader;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport Environment from \"./Environment\";\nimport Model from \"~/core/Model\";\nimport { getBoxPoints } from \"~/utils\";\n\n/**\n * THREE.DirectionalLight wrapper that will automatically update its shadow size to model\n * Shadow is enabled by default, use {@link AutoDirectionalLight#disableShadow disableShadow} to disable it\n * @category Environment\n */\nclass AutoDirectionalLight implements Environment {\n  private _light: THREE.DirectionalLight;\n  private _direction: THREE.Vector3; // Direction to light, from (0, 0, 0)\n\n  /**\n   * Array of lights that used in this preset\n   * @see https://threejs.org/docs/#api/en/lights/Light\n   */\n  public get objects(): THREE.Object3D[] {\n    return [this._light, this._light.target];\n  }\n\n  /**\n   * The actual THREE.DirectionalLight\n   * @type THREE#DirectionalLight\n   * @see https://threejs.org/docs/#api/en/lights/DirectionalLight\n   */\n  public get light() { return this._light; }\n\n  /**\n   * Position of the light\n   * @type THREE#Vector3\n   * @see https://threejs.org/docs/#api/en/math/Vector3\n   */\n  public get position() { return this._light.position; }\n\n  public get direction() { return this._direction; }\n\n  /**\n   * Create new instance of AutoDirectionalLight\n   * @param [color=\"#ffffff\"] Color of the light\n   * @param [intensity=1] Intensity of the light\n   * @param {object} [options={}] Additional options\n   * @param {THREE.Vector3} [options.direction=new THREE.Vector3(-1, -1, -1)] Direction of the light\n   */\n  constructor(color: string | number | THREE.Color = \"#ffffff\", intensity: number = 1, {\n    direction = new THREE.Vector3(-1, -1, -1),\n  } = {}) {\n    this._light = new THREE.DirectionalLight(color, intensity);\n\n    // Set the default position ratio of the directional light\n    const light = this._light;\n    light.castShadow = true; // Is enabled by default\n    light.shadow.mapSize.width = 2048;\n    light.shadow.mapSize.height = 2048;\n    light.matrixAutoUpdate = false;\n\n    this._direction = direction.clone().normalize();\n  }\n\n  /**\n   * Make light cast a shadow\n   */\n  public enableShadow() {\n    this._light.castShadow = true;\n  }\n\n  /**\n   * Make light don't cast a shadow\n   */\n  public disableShadow() {\n    this._light.castShadow = false;\n  }\n\n  /**\n   * Modify light's position & shadow camera size from model's bounding box\n   * @param model Model to fit size\n   * @param scale Scale factor for shadow camera size\n   */\n  public fit(model: Model, {\n    scale = 1.5,\n  } = {}) {\n    const bbox = model.bbox;\n    const light = this._light;\n    const direction = this._direction;\n    const boxSize = bbox.getSize(new THREE.Vector3()).length();\n    const boxCenter = bbox.getCenter(new THREE.Vector3());\n\n    // Position fitting\n    const newPos = new THREE.Vector3().addVectors(boxCenter, direction.clone().negate().multiplyScalar(boxSize * 0.5));\n    light.position.copy(newPos);\n    light.target.position.copy(boxCenter);\n    light.updateMatrix();\n\n    // Shadowcam fitting\n    const shadowCam = light.shadow.camera;\n    shadowCam.near = 0;\n    shadowCam.far = 2 * boxSize;\n    shadowCam.position.copy(newPos);\n    shadowCam.lookAt(boxCenter);\n\n    shadowCam.left = -1;\n    shadowCam.right = 1;\n    shadowCam.top = 1;\n    shadowCam.bottom = -1;\n\n    shadowCam.updateMatrixWorld();\n    shadowCam.updateProjectionMatrix();\n\n    const bboxPoints = getBoxPoints(bbox);\n    const projectedPoints = bboxPoints.map(position => position.project(shadowCam));\n    const screenBbox = new THREE.Box3().setFromPoints(projectedPoints);\n\n    shadowCam.left *= -scale * screenBbox.min.x;\n    shadowCam.right *= scale * screenBbox.max.x;\n    shadowCam.top *= scale * screenBbox.max.y;\n    shadowCam.bottom *= -scale * screenBbox.min.y;\n\n    shadowCam.updateProjectionMatrix();\n  }\n}\n\nexport default AutoDirectionalLight;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport Model from \"~/core/Model\";\nimport Environment from \"./Environment\";\n\n/**\n * Helper class to easily add shadow plane under your 3D model\n * @category Environment\n * @example\n * import View3D, { ShadowPlane } from \"@egjs/view3d\";\n *\n * const view3d = new View3D(\"#view3d-canvas\");\n * const shadowPlane = new ShadowPlane();\n * view3d.scene.addEnv(shadowPlane);\n */\nclass ShadowPlane implements Environment {\n  // Developers can change those values if they know what they're doing\n  // So I'm leaving those values public\n\n  /**\n   * Geometry of the shadow plane\n   * @see https://threejs.org/docs/#api/en/geometries/PlaneGeometry\n   */\n  public geometry: THREE.PlaneGeometry;\n  /**\n   * Material of the shadow plane\n   * @see https://threejs.org/docs/#api/en/materials/ShadowMaterial\n   */\n  public material: THREE.ShadowMaterial;\n  /**\n   * Mesh of the shadow plane\n   * @see https://threejs.org/docs/#api/en/objects/Mesh\n   */\n  public mesh: THREE.Mesh;\n\n  public get objects() { return [this.mesh]; }\n\n  /**\n   * Shadow opacity, value can be between 0(invisible) and 1(solid)\n   * @type number\n   */\n  public get opacity() {\n    return this.material.opacity;\n  }\n\n  public set opacity(val: number) {\n    this.material.opacity = val;\n  }\n\n  /**\n   * Create new shadow plane\n   * @param {object} options Options\n   * @param {number} [options.size=10000] Size of the shadow plane\n   * @param {number} [options.opacity=0.3] Opacity of the shadow\n   */\n  constructor({\n    size = 10000,\n    opacity = 0.3,\n  } = {}) {\n    this.geometry = new THREE.PlaneGeometry(size, size, 100, 100);\n    this.material = new THREE.ShadowMaterial({ opacity });\n    this.mesh = new THREE.Mesh(this.geometry, this.material);\n\n    const mesh = this.mesh;\n    mesh.rotateX(-Math.PI / 2);\n    mesh.receiveShadow = true;\n  }\n\n  /**\n   * Fit shadow plane's size & position to given model\n   * @param model Model to fit\n   */\n  public fit(model: Model, {\n    floorPosition,\n    floorRotation = new THREE.Quaternion(0, 0, 0, 1),\n  }: Partial<{\n    floorPosition: THREE.Vector3,\n    floorRotation: THREE.Quaternion,\n  }> = {}): void {\n    const modelPosition = model.scene.position;\n    const localYAxis = new THREE.Vector3(0, 1, 0).applyQuaternion(floorRotation);\n\n    // Apply position\n    if (floorPosition) {\n      // Apply a tiny offset to prevent z-fighting with original model\n      this.mesh.position.copy(floorPosition.clone().add(localYAxis.clone().multiplyScalar(0.001)));\n    } else {\n      const modelBbox = model.bbox;\n      const modelBboxYOffset = modelBbox.getCenter(new THREE.Vector3()).y - modelBbox.min.y;\n      const modelFloor = new THREE.Vector3().addVectors(\n        modelPosition,\n        // Apply a tiny offset to prevent z-fighting with original model\n        localYAxis.multiplyScalar(-modelBboxYOffset + 0.0001),\n      );\n      this.mesh.position.copy(modelFloor);\n    }\n\n    // Apply rotation\n    const rotX90 = new THREE.Quaternion().setFromEuler(new THREE.Euler(-Math.PI / 2, 0, 0));\n    const shadowRotation = new THREE.Quaternion().multiplyQuaternions(floorRotation, rotX90);\n\n    this.mesh.quaternion.copy(shadowRotation);\n    this.mesh.updateMatrix();\n  }\n}\n\nexport default ShadowPlane;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport { GLTFLoader as ThreeGLTFLoader, GLTF } from \"three/examples/jsm/loaders/GLTFLoader\";\nimport { DRACOLoader } from \"three/examples/jsm/loaders/DRACOLoader\";\nimport Model from \"~/core/Model\";\nimport * as DEFAULT from \"~/consts/default\";\nimport View3D from \"~/View3D\";\nimport { ShadowPlane, AutoDirectionalLight } from \"~/environments\";\nimport { ModelLoadOption } from \"~/types/external\";\n\n/**\n * GLTFLoader\n * @category Loaders\n */\nclass GLTFLoader {\n  private _loader: ThreeGLTFLoader;\n  private _dracoLoader: DRACOLoader;\n\n  public get loader() { return this._loader; }\n  public get dracoLoader() { return this._dracoLoader; }\n\n  /**\n   * Create a new instance of GLTFLoader\n   */\n  constructor() {\n    this._loader = new ThreeGLTFLoader();\n    this._dracoLoader = new DRACOLoader();\n\n    const loader = this._loader;\n    loader.setCrossOrigin(\"anonymous\");\n\n    const dracoLoader = this._dracoLoader;\n    dracoLoader.setDecoderPath(DEFAULT.DRACO_DECODER_URL);\n    loader.setDRACOLoader(dracoLoader);\n  }\n\n  /**\n   * Load new GLTF model from the given url\n   * @param url URL to fetch glTF/glb file\n   * @param options Options for a loaded model\n   * @returns Promise that resolves {@link Model}\n   */\n  public load(url: string, options: Partial<ModelLoadOption> = {}): Promise<Model> {\n    const loader = this._loader;\n    loader.manager = new THREE.LoadingManager();\n\n    return new Promise((resolve, reject) => {\n      loader.load(url, gltf => {\n        const model = this._parseToModel(gltf, options);\n        resolve(model);\n      }, undefined, err => {\n        reject(err);\n      });\n    });\n  }\n\n  /**\n   * Load preset generated from View3D editor.\n   * @param viewer Instance of the {@link View3D}.\n   * @param url Preset url\n   * @param {object} options Options\n   * @param {string} [options.path] Base path for additional files.\n   * @param {function} [options.onLoad] Callback which called after each model LOD is loaded.\n   * @returns {Model} Model instance with highest LOD\n   */\n  public loadPreset(viewer: View3D, url: string, options: Partial<{\n    path: string;\n    onLoad: (model: Model, lodIndex: number) => any;\n  }> = {}): Promise<Model> {\n    const loader = this._loader;\n    const fileLoader = new THREE.FileLoader();\n\n    return fileLoader.loadAsync(url)\n      .then(jsonRaw => {\n        return new Promise((resolve, reject) => {\n          const json = JSON.parse(jsonRaw);\n          const baseURL = THREE.LoaderUtils.extractUrlBase(url);\n\n          // Reset\n          viewer.scene.reset();\n          viewer.camera.reset();\n          viewer.animator.reset();\n\n          const modelOptions = json.model;\n          const cameraOptions = json.camera;\n          const environmentOptions = json.env;\n\n          viewer.camera.setDefaultPose({\n            yaw: cameraOptions.yaw,\n            pitch: cameraOptions.pitch,\n          });\n          viewer.camera.minDistance = cameraOptions.distanceRange[0];\n          viewer.camera.maxDistance = cameraOptions.distanceRange[1];\n\n          if (environmentOptions.background) {\n            viewer.scene.setBackground(new THREE.Color(environmentOptions.background));\n          }\n\n          const shadowPlane = new ShadowPlane();\n          shadowPlane.opacity = environmentOptions.shadow.opacity;\n          viewer.scene.addEnv(shadowPlane);\n\n          const ambientOptions = environmentOptions.ambient;\n          const ambient = new THREE.AmbientLight(new THREE.Color(ambientOptions.color), ambientOptions.intensity);\n          viewer.scene.addEnv(ambient);\n\n          const lightOptions = [environmentOptions.light1, environmentOptions.light2, environmentOptions.light3];\n          lightOptions.forEach(lightOption => {\n            const lightDirection = new THREE.Vector3(lightOption.x, lightOption.y, lightOption.z).negate();\n            const directional = new AutoDirectionalLight(new THREE.Color(lightOption.color), lightOption.intensity, {\n              direction: lightDirection,\n            });\n            directional.light.castShadow = lightOption.castShadow;\n            directional.light.updateMatrixWorld();\n            viewer.scene.addEnv(directional);\n          });\n\n          let isFirstLoad = true;\n          const loadFlags = json.LOD.map(() => false) as boolean[];\n          json.LOD.forEach((fileName: string, lodIndex: number) => {\n            const glbURL = this._resolveURL(`${baseURL}${fileName}`, options.path || \"\");\n\n            loader.load(glbURL, gltf => {\n              loadFlags[lodIndex] = true;\n              const higherLODLoaded = loadFlags.slice(lodIndex + 1).some(loaded => loaded);\n              if (higherLODLoaded) return;\n\n              const model = this._parseToModel(gltf);\n\n              viewer.display(model, {\n                size: modelOptions.size,\n                resetView: isFirstLoad,\n              });\n              isFirstLoad = false;\n\n              model.castShadow = modelOptions.castShadow;\n              model.receiveShadow = modelOptions.receiveShadow;\n\n              if (options.onLoad) {\n                options.onLoad(model, lodIndex);\n              }\n              if (lodIndex === json.LOD.length - 1) {\n                resolve(model);\n              }\n            }, undefined, err => {\n              reject(err);\n            });\n          });\n        });\n      });\n  }\n\n  /**\n   * Load new GLTF model from the given files\n   * @param files Files that has glTF/glb and all its associated resources like textures and .bin data files\n   * @param options Options for a loaded model\n   * @returns Promise that resolves {@link Model}\n   */\n  public loadFromFiles(files: File[], options: Partial<ModelLoadOption> = {}): Promise<Model> {\n    const objectURLs: string[] = [];\n    const revokeURLs = () => {\n      objectURLs.forEach(url => {\n        URL.revokeObjectURL(url);\n      });\n    };\n\n    return new Promise((resolve, reject) => {\n      if (files.length <= 0) {\n        reject(new Error(\"No files found\"));\n        return;\n      }\n\n      const gltfFile = files.find(file => /\\.(gltf|glb)$/i.test(file.name));\n      if (!gltfFile) {\n        reject(new Error(\"No glTF file found\"));\n        return;\n      }\n\n      const filesMap = new Map<string, File>();\n      files.forEach(file => {\n        filesMap.set(file.name, file);\n      });\n\n      const gltfURL = URL.createObjectURL(gltfFile);\n\n      objectURLs.push(gltfURL);\n\n      const manager = new THREE.LoadingManager();\n      manager.setURLModifier(fileURL => {\n        const fileNameResult = /[^\\/|\\\\]+$/.exec(fileURL);\n        const fileName = (fileNameResult && fileNameResult[0]) || \"\";\n\n        if (filesMap.has(fileName)) {\n          const blob = filesMap.get(fileName);\n          const blobURL = URL.createObjectURL(blob);\n          objectURLs.push(blobURL);\n\n          return blobURL;\n        }\n\n        return fileURL;\n      });\n\n      const loader = this._loader;\n      loader.manager = manager;\n      loader.load(gltfURL, gltf => {\n        const model = this._parseToModel(gltf, options);\n        resolve(model);\n        revokeURLs();\n      }, undefined, err => {\n        reject(err);\n        revokeURLs();\n      });\n    });\n  }\n\n  /**\n   * Parse from array buffer\n   * @param data glTF asset to parse, as an ArrayBuffer or JSON string.\n   * @param path The base path from which to find subsequent glTF resources such as textures and .bin data files.\n   * @param options Options for a loaded model\n   * @returns Promise that resolves {@link Model}\n   */\n  public parse(data: ArrayBuffer, path: string, options: Partial<ModelLoadOption> = {}): Promise<Model> {\n    const loader = this._loader;\n    loader.manager = new THREE.LoadingManager();\n\n    return new Promise((resolve, reject) => {\n      loader.parse(data, path, gltf => {\n        const model = this._parseToModel(gltf, options);\n        resolve(model);\n      }, err => {\n        reject(err);\n      });\n    });\n  }\n\n  private _parseToModel(gltf: GLTF, {\n    fixSkinnedBbox = false,\n  }: Partial<ModelLoadOption> = {}): Model {\n    const model = new Model({\n      scenes: gltf.scenes,\n      animations: gltf.animations,\n      fixSkinnedBbox,\n    });\n\n    model.meshes.forEach(mesh => {\n      const materials = Array.isArray(mesh.material)\n        ? mesh.material\n        : [mesh.material];\n\n      materials.forEach((mat: THREE.MeshStandardMaterial) => {\n        if (mat.map) {\n          mat.map.encoding = THREE.sRGBEncoding;\n        }\n      });\n    });\n\n    return model;\n  }\n\n  // Grabbed from three.js/GLTFLoader\n  // Original code: https://github.com/mrdoob/three.js/blob/master/examples/jsm/loaders/GLTFLoader.js#L1221\n  // License: MIT\n  private _resolveURL(url: string, path: string): string {\n    // Invalid URL\n    if ( typeof url !== \"string\" || url === \"\" ) return \"\";\n\n    // Host Relative URL\n    if ( /^https?:\\/\\//i.test( path ) && /^\\//.test( url ) ) {\n\n      path = path.replace( /(^https?:\\/\\/[^\\/]+).*/i, \"$1\" );\n\n    }\n\n    // Absolute URL http://,https://,//\n    if ( /^(https?:)?\\/\\//i.test( url ) ) return url;\n\n    // Data URI\n    if ( /^data:.*,.*$/i.test( url ) ) return url;\n\n    // Blob URL\n    if ( /^blob:.*$/i.test( url ) ) return url;\n\n    // Relative URL\n    return path + url;\n  }\n}\n\nexport default GLTFLoader;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport { RGBELoader } from \"three/examples/jsm/loaders/RGBELoader\";\nimport Renderer from \"~/core/Renderer\";\n\n/**\n * Texture loader\n * @category Loaders\n */\nclass TextureLoader {\n  private _renderer: Renderer;\n\n  /**\n   * Create new TextureLoader instance\n   * @param renderer {@link Renderer} instance of View3D\n   */\n  constructor(renderer: Renderer) {\n    this._renderer = renderer;\n  }\n\n  /**\n   * Create new {@link https://threejs.org/docs/index.html#api/en/textures/Texture Texture} with given url\n   * Texture's {@link https://threejs.org/docs/index.html#api/en/textures/Texture.flipY flipY} property is `true` by Three.js's policy, so be careful when using it as a map texture.\n   * @param url url to fetch image\n   */\n  public load(url: string): Promise<THREE.Texture> {\n    return new Promise((resolve, reject) => {\n      const loader = new THREE.TextureLoader();\n      loader.load(url, resolve, undefined, reject);\n    });\n  }\n\n  /**\n   * Create new {@link https://threejs.org/docs/#api/en/renderers/WebGLCubeRenderTarget WebGLCubeRenderTarget} with given equirectangular image url\n   * Be sure that equirectangular image has height of power of 2, as it will be resized if it isn't\n   * @param url url to fetch equirectangular image\n   * @returns WebGLCubeRenderTarget created\n   */\n  public loadEquirectagularTexture(url: string): Promise<THREE.WebGLCubeRenderTarget> {\n    return new Promise((resolve, reject) => {\n      const loader = new THREE.TextureLoader();\n      loader.load(url, skyboxTexture => {\n        resolve(this._equirectToCubemap(skyboxTexture));\n      }, undefined, reject);\n    });\n  }\n\n  /**\n   * Create new {@link https://threejs.org/docs/#api/en/textures/CubeTexture CubeTexture} with given cubemap image urls\n   * Image order should be: px, nx, py, ny, pz, nz\n   * @param urls cubemap image urls\n   * @returns CubeTexture created\n   */\n  public loadCubeTexture(urls: string[]): Promise<THREE.CubeTexture> {\n    return new Promise((resolve, reject) => {\n      const loader = new THREE.CubeTextureLoader();\n      loader.load(urls, resolve, undefined, reject);\n    });\n  }\n\n  public loadHDRTexture(url: string, isEquirectangular: false): Promise<THREE.DataTexture>;\n\n  public loadHDRTexture(url: string, isEquirectangular: true): Promise<THREE.WebGLCubeRenderTarget>;\n\n  /**\n   * Create new texture with given HDR(RGBE) image url\n   * @param url image url\n   * @param isEquirectangular Whether to read this image as a equirectangular texture\n   */\n  public loadHDRTexture(url: string, isEquirectangular: boolean = true): Promise<THREE.DataTexture | THREE.WebGLCubeRenderTarget> {\n    return new Promise((resolve, reject) => {\n      const loader = new RGBELoader();\n      loader.load(url, texture => {\n        if (isEquirectangular) {\n          resolve(this._equirectToCubemap(texture));\n        } else {\n          resolve(texture);\n        }\n      }, undefined, reject);\n    });\n  }\n\n  private _equirectToCubemap(texture: THREE.Texture): THREE.WebGLCubeRenderTarget {\n    return new THREE.WebGLCubeRenderTarget(texture.image.height)\n      .fromEquirectangularTexture(this._renderer.threeRenderer, texture);\n  }\n}\n\nexport default TextureLoader;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\ndeclare global {\n  interface Window {\n    XRSession: any;\n    XRDOMOverlayState: any;\n  }\n}\n\nexport const QUICKLOOK_SUPPORTED = (() => {\n  const anchorEl = document.createElement(\"a\");\n  return anchorEl.relList && anchorEl.relList.supports && anchorEl.relList.supports(\"ar\");\n})();\nexport const WEBXR_SUPPORTED = navigator.xr && navigator.xr.isSessionSupported;\nexport const HIT_TEST_SUPPORTED = window.XRSession && window.XRSession.prototype.requestHitTestSource;\nexport const DOM_OVERLAY_SUPPORTED = window.XRDOMOverlayState != null;\n\nexport const SESSION = {\n  AR: \"immersive-ar\",\n  VR: \"immersive-ar\",\n};\n\nexport const REFERENCE_SPACE = {\n  LOCAL: \"local\",\n  LOCAL_FLOOR: \"local-floor\",\n  VIEWER: \"viewer\",\n};\n\nexport const EVENTS = {\n  SELECT_START: \"selectstart\",\n  SELECT: \"select\",\n  SELECT_END: \"selectend\",\n};\n\nexport const INPUT_PROFILE = {\n  TOUCH: \"generic-touchscreen\",\n};\n\nexport const FEATURES = {\n  HIT_TEST: { requiredFeatures: [\"hit-test\"] },\n  DOM_OVERLAY: (root: HTMLElement) => ({\n    optionalFeatures: [\"dom-overlay\"],\n    domOverlay: { root },\n  }),\n};\n\n// For type definition\nexport const EMPTY_FEATURES: {\n  requiredFeatures?: any[],\n  optionalFeatures?: any[],\n  [key: string]: any,\n} = {};\n\nexport const SCENE_VIEWER = {\n  INTENT_AR_CORE: (params: string, fallback?: string) => `intent://arvr.google.com/scene-viewer/1.1?${params}#Intent;scheme=https;package=com.google.ar.core;action=android.intent.action.VIEW;${fallback ? `S.browser_fallback_url=${fallback};` : \"\"}end;`,\n  INTENT_SEARCHBOX: (params: string, fallback: string) => `intent://arvr.google.com/scene-viewer/1.1?${params}#Intent;scheme=https;package=com.google.android.googlequicksearchbox;action=android.intent.action.VIEW;${fallback ? `S.browser_fallback_url=${fallback};` : \"\"}end;`,\n  FALLBACK_DEFAULT: (params: string) => `https://arvr.google.com/scene-viewer?${params}`,\n};\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as XR from \"~/consts/xr\";\n\n/**\n * Manager for WebXR dom-overlay feature\n * @category XR\n */\nclass DOMOverlay {\n  private _root: HTMLElement;\n  private _loadingEl: HTMLElement | null;\n\n  /**\n   * Overlay root element\n   */\n  public get root() { return this._root; }\n  /**\n   * Loading indicator element, if there's any\n   */\n  public get loadingElement() { return this._loadingEl; }\n  /**\n   * {@link https://developer.mozilla.org/en-US/docs/Web/API/XRSessionInit XRSessionInit} object for dom-overlay feature\n   */\n  public get features() { return XR.FEATURES.DOM_OVERLAY(this._root); }\n\n  /**\n   * Create new DOMOverlay instance\n   * @param {object} [options] Options\n   * @param {HTMLElement} [options.root] Overlay root element\n   * @param {HTMLElement | null} [options.loadingEl] Model loading indicator element which will be invisible after placing model on the floor.\n   */\n  constructor(options: {\n    root: HTMLElement,\n    loadingEl: HTMLElement | null,\n  }) {\n    this._root = options.root;\n    this._loadingEl = options.loadingEl;\n  }\n\n  /**\n   * Return whether dom-overlay feature is available\n   */\n  public isAvailable() {\n    return XR.DOM_OVERLAY_SUPPORTED;\n  }\n\n  /**\n   * Show loading indicator, if there's any\n   */\n  public showLoading() {\n    if (!this._loadingEl) return;\n\n    this._loadingEl.style.visibility = \"visible\";\n  }\n\n  /**\n   * Hide loading indicator, if there's any\n   */\n  public hideLoading() {\n    if (!this._loadingEl) return;\n\n    this._loadingEl.style.visibility = \"hidden\";\n  }\n}\n\nexport default DOMOverlay;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport View3D from \"~/View3D\";\nimport XRSession from \"./XRSession\";\nimport DOMOverlay from \"./features/DOMOverlay\";\nimport EventEmitter from \"~/core/EventEmitter\";\nimport { getElement, merge } from \"~/utils\";\nimport * as DEFAULT from \"~/consts/default\";\nimport * as XR from \"~/consts/xr\";\nimport { XRContext, XRRenderContext } from \"~/types/internal\";\n\ndeclare global {\n  interface Navigator { xr: any; }\n}\n\n/**\n * Options for WebARSession\n * @category XR\n * @interface\n * @property {object} [features={}] You can set additional features(see {@link https://developer.mozilla.org/en-US/docs/Web/API/XRSessionInit XRSessionInit}) with this option.\n * @property {number} [maxModelSize=Infinity] If model's size is too big to show on AR, you can restrict it's size with this option. Model with size bigger than this value will clamped to this value.\n * @property {HTMLElement|string|null} [overlayRoot=null] If this value is set, dom-overlay feature will be automatically added for this session. And this value will be used as dom-overlay's root element. You can set either HTMLElement or query selector for that element.\n * @property {HTMLElement|string|null} [loadingEl=null] This will be used for loading indicator element, which will automatically invisible after placing 3D model by setting `visibility: hidden`. This element must be placed under `overlayRoot`. You can set either HTMLElement or query selector for that element.\n * @property {boolean} [forceOverlay=false] Whether to apply `dom-overlay` feature as required. If set to false, `dom-overlay` will be optional feature.\n */\nexport interface WebARSessionOption {\n  features: typeof XR.EMPTY_FEATURES;\n  maxModelSize: number;\n  overlayRoot: HTMLElement | string | null;\n  loadingEl: HTMLElement | string | null;\n  forceOverlay: boolean;\n}\n\n/**\n * WebXR based abstract AR session class\n * @category XR\n * @fires WebARSession#start\n * @fires WebARSession#end\n * @fires WebARSession#canPlace\n * @fires WebARSession#modelPlaced\n */\nabstract class WebARSession extends EventEmitter<{\n  start: void;\n  end: void;\n  canPlace: void;\n  modelPlaced: void;\n}> implements XRSession {\n  /**\n   * Whether it's webxr-based session or not\n   * @type true\n   */\n  public readonly isWebXRSession = true;\n\n  protected _session: any = null;\n  protected _domOverlay: DOMOverlay | null = null;\n  // As \"dom-overlay\" is an optional feature by default,\n  // user can choose whether to show XR only when this feature is available\n  protected _forceOverlay: boolean;\n  protected _features: typeof XR.EMPTY_FEATURES;\n  protected _maxModelSize: number;\n\n  /**\n   * {@link https://developer.mozilla.org/en-US/docs/Web/API/XRSession XRSession} of this session\n   * This value is only available after calling enter\n   */\n  public get session() { return this._session; }\n  /**\n   * {@link https://developer.mozilla.org/en-US/docs/Web/API/XRSessionInit XRSessionInit} object for this session.\n   */\n  public get features() { return this._features; }\n\n  /**\n   * Emitted when session is started.\n   * @event start\n   * @category XR\n   * @memberof WebARSession\n   * @type void\n   */\n  /**\n   * Emitted when session is ended.\n   * @event end\n   * @category XR\n   * @memberof WebARSession\n   * @type void\n   */\n  /**\n   * Emitted when model can be placed on the space.\n   * @event canPlace\n   * @category XR\n   * @memberof WebARSession\n   * @type void\n   */\n  /**\n   * Emitted when model is placed.\n   * @event modelPlaced\n   * @category XR\n   * @memberof WebARSession\n   * @type void\n   */\n\n  /**\n   * Create new instance of WebARSession\n   * @param {object} [options={}] Options\n   * @param {object} [options.features={}] You can set additional features(see {@link https://developer.mozilla.org/en-US/docs/Web/API/XRSessionInit XRSessionInit}) with this option.\n   * @param {number} [options.maxModelSize=Infinity] If model's size is too big to show on AR, you can restrict it's size with this option. Model with size bigger than this value will clamped to this value.\n   * @param {HTMLElement|string|null} [options.overlayRoot=null] If this value is set, dom-overlay feature will be automatically added for this session. And this value will be used as dom-overlay's root element. You can set either HTMLElement or query selector for that element.\n   * @param {HTMLElement|string|null} [options.loadingEl=null] This will be used for loading indicator element, which will automatically invisible after placing 3D model by setting `visibility: hidden`. This element must be placed under `overlayRoot`. You can set either HTMLElement or query selector for that element.\n   * @param {boolean} [options.forceOverlay=false] Whether to apply `dom-overlay` feature as required. If set to false, `dom-overlay` will be optional feature.\n   */\n  constructor({\n    features: userFeatures = XR.EMPTY_FEATURES, // https://developer.mozilla.org/en-US/docs/Web/API/XRSessionInit\n    maxModelSize = Infinity,\n    overlayRoot = DEFAULT.NULL_ELEMENT,\n    loadingEl = DEFAULT.NULL_ELEMENT,\n    forceOverlay = false,\n  }: Partial<WebARSessionOption> = {}) {\n    super();\n    const overlayEl = getElement(overlayRoot);\n\n    const features: (typeof XR.EMPTY_FEATURES)[] = [];\n    if (overlayEl) {\n      this._domOverlay = new DOMOverlay({\n        root: overlayEl,\n        loadingEl: getElement(loadingEl, overlayEl),\n      });\n      features.push(this._domOverlay.features);\n    }\n\n    this._features = merge({}, ...features, userFeatures);\n    this._maxModelSize = maxModelSize;\n    this._forceOverlay = forceOverlay;\n  }\n\n  /**\n   * Return availability of this session\n   * @returns {Promise} A Promise that resolves availability of this session(boolean).\n   */\n  public isAvailable() {\n    const domOverlay = this._domOverlay;\n\n    if (!XR.WEBXR_SUPPORTED || !XR.HIT_TEST_SUPPORTED) return Promise.resolve(false);\n    if (this._forceOverlay) {\n      if (domOverlay && !domOverlay.isAvailable()) return Promise.resolve(false);\n    }\n\n    return navigator.xr.isSessionSupported(XR.SESSION.AR);\n  }\n\n  /**\n   * Enter session\n   * @param view3d Instance of the View3D\n   * @returns {Promise}\n   */\n  public enter(view3d: View3D) {\n    // Model not loaded yet\n    if (!view3d.model) return Promise.reject(\"3D Model is not loaded\");\n\n    const model = view3d.model;\n\n    return navigator.xr.requestSession(XR.SESSION.AR, this._features)\n      .then(session => {\n        const renderer = view3d.renderer;\n        const threeRenderer = renderer.threeRenderer;\n        const xrContext = {\n          view3d,\n          model,\n          session,\n        };\n\n        // Cache original values\n        const originalMatrix = model.scene.matrix.clone();\n        const originalModelSize = model.size;\n        const originalBackground = view3d.scene.root.background;\n\n        const arModelSize = Math.min(model.originalSize, this._maxModelSize);\n        model.size = arModelSize;\n        model.moveToOrigin();\n        view3d.scene.setBackground(null);\n\n        // Cache original model rotation\n        threeRenderer.xr.setReferenceSpaceType(XR.REFERENCE_SPACE.LOCAL);\n        threeRenderer.xr.setSession(session);\n        threeRenderer.setPixelRatio(1);\n\n        this.onStart(xrContext);\n        session.addEventListener(\"end\", () => {\n          this.onEnd(xrContext);\n\n          // Restore original values\n          model.scene.matrix.copy(originalMatrix);\n          model.scene.matrix.decompose(model.scene.position, model.scene.quaternion, model.scene.scale);\n          model.size = originalModelSize;\n          model.moveToOrigin();\n\n          view3d.scene.update(model);\n          view3d.scene.setBackground(originalBackground);\n\n          // Restore renderer values\n          threeRenderer.xr.setSession(null);\n          threeRenderer.setPixelRatio(window.devicePixelRatio);\n\n          // Restore render loop\n          renderer.stopAnimationLoop();\n          renderer.setAnimationLoop(view3d.renderLoop);\n        }, { once: true });\n\n        // Set XR session render loop\n        renderer.stopAnimationLoop();\n        renderer.setAnimationLoop((delta, frame) => {\n          const xrCam = threeRenderer.xr.getCamera(new THREE.PerspectiveCamera()) as THREE.PerspectiveCamera;\n          const referenceSpace = threeRenderer.xr.getReferenceSpace();\n          const glLayer = session.renderState.baseLayer;\n          const size = {\n            width: glLayer.framebufferWidth,\n            height: glLayer.framebufferHeight,\n          };\n          const renderContext: XRRenderContext = {\n            ...xrContext,\n            delta,\n            frame,\n            referenceSpace,\n            xrCam,\n            size,\n          };\n\n          this._beforeRender(renderContext);\n          view3d.renderLoop(delta);\n        });\n      });\n  }\n\n  /**\n   * Exit this session\n   * @param view3d Instance of the View3D\n   */\n  public exit(view3d: View3D) {\n    const session = view3d.renderer.threeRenderer.xr.getSession();\n    session.end();\n  }\n\n  public onStart(ctx: XRContext) {\n    this._session = ctx.session;\n    this._domOverlay?.showLoading();\n    this.emit(\"start\");\n  }\n\n  public onEnd(ctx: XRContext) {\n    this._session = null;\n    this._domOverlay?.hideLoading();\n    this.emit(\"end\");\n  }\n\n  protected abstract _beforeRender(ctx: XRRenderContext): void;\n}\n\nexport default WebARSession;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as XR from \"~/consts/xr\";\n\n/**\n * Manager for WebXR hit-test feature\n * @category XR\n */\nclass HitTest {\n  private _source: any = null;\n\n  /**\n   * Return whether hit-test is ready\n   */\n  public get ready() { return this._source != null; }\n  /**\n   * {@link https://developer.mozilla.org/en-US/docs/Web/API/XRSessionInit XRSessionInit} object for hit-test feature\n   */\n  public get features() { return XR.FEATURES.HIT_TEST; }\n\n  /**\n   * Destroy instance\n   */\n  public destroy() {\n    if (this._source) {\n      this._source.cancel();\n      this._source = null;\n    }\n  }\n\n  /**\n   * Initialize hit-test feature\n   * @param {XRSession} session XRSession instance\n   */\n  public init(session: any) {\n    session.requestReferenceSpace(XR.REFERENCE_SPACE.VIEWER).then(referenceSpace => {\n      session.requestHitTestSource({ space: referenceSpace }).then(source => {\n        this._source = source;\n      });\n    });\n  }\n\n  /**\n   * Return whether hit-test feature is available\n   */\n  public isAvailable() {\n    return XR.HIT_TEST_SUPPORTED;\n  }\n\n  /**\n   * Get hit-test results\n   * @param {XRFrame} frame XRFrame instance\n   */\n  public getResults(frame: any) {\n    return frame.getHitTestResults(this._source);\n  }\n}\n\nexport default HitTest;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport EventEmitter from \"./EventEmitter\";\nimport * as DEFAULT from \"~/consts/default\";\nimport * as EASING from \"~/consts/easing\";\nimport { circulate } from \"~/utils\";\n\n/**\n * Fires for every animation frame when animation is active.\n * @type object\n * @property {object} event Event object.\n * @property {number} [event.progress] Current animation progress value.\n * Value is ranged from 0(start) to 1(end).\n * @property {number} [event.easedProgress] Eased progress value.\n * @event Animation#progress\n */\n\n/**\n * Fires for every animation loop except for the last loop\n * This will be triggered only when repeat > 0\n * @type object\n * @property {object} event Event object.\n * @property {number} [event.progress] Current animation progress value.\n * Value is ranged from 0(start) to 1(end).\n * @property {number} [event.easedProgress] Eased progress value.\n * @property {number} [event.loopIndex] Index of the current loop.\n * @event Animation#loop\n */\n\n/**\n * Fires when animation ends.\n * @type void\n * @event Animation#finish\n */\n\n/**\n * Self-running animation\n * @category Core\n */\nclass Animation extends EventEmitter<{\n  progress: (event: { progress: number, easedProgress: number }) => any,\n  loop: (event: { progress: number, easedProgress: number, loopIndex: number }) => any,\n  finish: void,\n}> {\n  // Options\n  private _ctx: any; // Window or XRSession\n  private _repeat: number;\n  private _duration: number;\n  private _easing: (x: number) => number;\n\n  // Internal state\n  private _rafId: number;\n  private _loopCount: number;\n  private _time: number;\n  private _clock: number;\n\n  /**\n   * Create new instance of the Animation\n   * @param {object} [options={}] Options\n   */\n  constructor({\n    context = window,\n    repeat = 0,\n    duration = DEFAULT.ANIMATION_DURATION,\n    easing = EASING.EASE_OUT_CUBIC,\n  }: Partial<{\n    context: any,\n    repeat: number,\n    duration: number,\n    easing: (x: number) => number;\n  }> = {}) {\n    super();\n\n    // Options\n    this._repeat = repeat;\n    this._duration = duration;\n    this._easing = easing;\n\n    // Internal States\n    this._ctx = context;\n    this._rafId = -1;\n    this._time = 0;\n    this._clock = 0;\n    this._loopCount = 0;\n  }\n\n  public start() {\n    if (this._rafId >= 0) return;\n\n    // This guarantees \"progress\" event with progress = 0 on first start\n    this._updateClock();\n    this._loop();\n  }\n\n  public stop() {\n    if (this._rafId < 0) return;\n\n    this._time = 0;\n    this._loopCount = 0;\n    this._stopLoop();\n  }\n\n  public pause() {\n    if (this._rafId < 0) return;\n\n    this._stopLoop();\n  }\n\n  private _loop = () => {\n    const delta = this._getDeltaTime();\n    const duration = this._duration;\n    this._time += delta;\n\n    const loopIncrease = Math.floor(this._time / duration);\n    this._time = circulate(this._time, 0, duration);\n\n    const progress = this._time / duration;\n    const progressEvent = {\n      progress,\n      easedProgress: this._easing(progress),\n    };\n    this.emit(\"progress\", progressEvent);\n\n    for (let loopIdx = 0; loopIdx < loopIncrease; loopIdx++) {\n      this._loopCount++;\n      if (this._loopCount > this._repeat) {\n        this.emit(\"finish\");\n        this.stop();\n        return;\n      } else {\n        this.emit(\"loop\", {\n          ...progressEvent,\n          loopIndex: this._loopCount,\n        });\n      }\n    }\n\n    this._rafId = this._ctx.requestAnimationFrame(this._loop);\n  }\n\n  private _stopLoop() {\n    this._ctx.cancelAnimationFrame(this._rafId);\n    this._rafId = -1;\n  }\n\n  private _getDeltaTime() {\n    const lastTime = this._clock;\n    this._updateClock();\n    return this._clock - lastTime;\n  }\n\n  private _updateClock() {\n    this._clock = Date.now();\n  }\n}\n\nexport default Animation;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\n\n/**\n * Options for {@link RotationIndicator}\n * @category Controls-AR\n * @interface\n * @property {string | number | THREE.Color} [ringColor=0xffffff] Ring color\n * @property {string | number | THREE.Color} [axisColor=0xffffff] Axis color\n */\nexport interface RotationIndicatorOption {\n  ringColor: string | number | THREE.Color;\n  axisColor: string | number | THREE.Color;\n}\n\n/**\n * Rotation indicator for ARHoverSession\n * @category Controls-AR\n */\nclass RotationIndicator {\n  private _ring: THREE.Mesh;\n  private _axis: THREE.Line;\n  private _obj: THREE.Group;\n\n  /**\n   * {@link https://threejs.org/docs/index.html#api/en/objects/Group THREE.Group} object that contains ring & axis.\n   */\n  public get object() { return this._obj; }\n\n  /**\n   * Create new RotationIndicator\n   * @param {RotationIndicatorOption} [options={}] Options\n   */\n  constructor({\n    ringColor = 0xffffff,\n    axisColor = 0xffffff,\n  }: Partial<RotationIndicatorOption> = {}) {\n    const ringGeometry = new THREE.RingGeometry(0.99, 1, 150, 1, 0, Math.PI * 2);\n    const ringMaterial = new THREE.MeshBasicMaterial({ color: ringColor, side: THREE.DoubleSide });\n\n    this._ring = new THREE.Mesh(ringGeometry, ringMaterial);\n\n    const axisVertices = [\n      new THREE.Vector3(0, 0, -1000),\n      new THREE.Vector3(0, 0, +1000),\n    ];\n    const axisGeometry = new THREE.BufferGeometry().setFromPoints(axisVertices);\n    const axisMaterial = new THREE.LineBasicMaterial({ color: axisColor });\n\n    this._axis = new THREE.Line(axisGeometry, axisMaterial);\n\n    this._obj = new THREE.Group();\n    this._obj.add(this._ring);\n    this._obj.add(this._axis);\n\n    this.hide();\n  }\n\n  /**\n   * Show indicator\n   */\n  public show() {\n    this._obj.visible = true;\n  }\n\n  /**\n   * Hide indicator\n   */\n  public hide() {\n    this._obj.visible = false;\n  }\n\n  /**\n   * Change the position of the indicator\n   * @param position New position\n   */\n  public updatePosition(position: THREE.Vector3) {\n    this._obj.position.copy(position);\n  }\n\n  /**\n   * Update scale of the ring\n   * @param scale New scale\n   */\n  public updateScale(scale: number) {\n    this._ring.scale.setScalar(scale);\n  }\n\n  /**\n   * Update indicator's rotation\n   * @param rotation Quaternion value set as new rotation.\n   */\n  public updateRotation(rotation: THREE.Quaternion) {\n    this._obj.quaternion.copy(rotation);\n  }\n}\n\nexport default RotationIndicator;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport Motion from \"~/controls/Motion\";\nimport RotationIndicator from \"../ui/RotationIndicator\";\nimport * as DEFAULT from \"~/consts/default\";\nimport * as TOUCH from \"~/consts/touch\";\nimport { XRRenderContext, XRContext, XRInputs } from \"~/types/internal\";\nimport { getRotationAngle } from \"~/utils\";\nimport ARControl from \"./ARControl\";\n\n/**\n * Options for {@link ARSwirlControl}\n * @category Controls-AR\n * @interface\n * @property {number} [scale=1] Scale(speed) factor of the rotation\n * @property {boolean} [showIndicator=true] Whether to show rotation indicator or not.\n */\nexport interface ARSwirlControlOption {\n  scale: number;\n  showIndicator: boolean;\n}\n\n/**\n * One finger swirl control on single axis\n * @category Controls-AR\n */\nclass ARSwirlControl implements ARControl {\n  /**\n   * Current rotation value\n   */\n  public readonly rotation = new THREE.Quaternion();\n\n  // Options\n  private _userScale: number;\n\n  // Internal States\n  private _axis = new THREE.Vector3(0, 1, 0);\n  private _enabled = true;\n  private _active = false;\n\n  private _prevPos = new THREE.Vector2();\n  private _fromQuat = new THREE.Quaternion();\n  private _toQuat = new THREE.Quaternion();\n\n  private _motion: Motion;\n  private _rotationIndicator: RotationIndicator | null;\n\n  /**\n   * Whether this control is enabled or not.\n   * @readonly\n   */\n  public get enabled() { return this._enabled; }\n  /**\n   * Scale(speed) factor of this control.\n   */\n  public get scale() { return this._userScale; }\n\n  public set scale(val: number) { this._userScale = val; }\n\n  /**\n   * Create new ARSwirlControl\n   * @param {ARSwirlControlOption} [options={}] Options\n   */\n  constructor({\n    scale = 1,\n    showIndicator = true,\n  }: Partial<ARSwirlControlOption> = {}) {\n    this._motion = new Motion({ range: DEFAULT.INFINITE_RANGE });\n    this._userScale = scale;\n\n    if (showIndicator) {\n      this._rotationIndicator = new RotationIndicator();\n    }\n  }\n\n  public init({ view3d }: XRRenderContext) {\n    const initialRotation = view3d.model!.scene.quaternion;\n    this.updateRotation(initialRotation);\n\n    if (this._rotationIndicator) {\n      view3d.scene.add(this._rotationIndicator.object);\n    }\n  }\n\n  public destroy({ view3d }: XRContext) {\n    if (this._rotationIndicator) {\n      view3d.scene.remove(this._rotationIndicator.object);\n    }\n  }\n\n  public updateRotation(rotation: THREE.Quaternion) {\n    this.rotation.copy(rotation);\n    this._fromQuat.copy(rotation);\n    this._toQuat.copy(rotation);\n  }\n\n  /**\n   * Enable this control\n   */\n  public enable() {\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this control\n   */\n  public disable() {\n    this._enabled = false;\n  }\n\n  public activate({ view3d }: XRRenderContext, gesture: TOUCH.GESTURE) {\n    if (!this._enabled) return;\n\n    this._active = true;\n\n    const model = view3d.model!;\n    const rotationIndicator = this._rotationIndicator;\n\n    if (rotationIndicator) {\n      rotationIndicator.show();\n      rotationIndicator.updatePosition(model.bbox.getCenter(new THREE.Vector3()));\n      rotationIndicator.updateScale(model.size / 2);\n      rotationIndicator.updateRotation(model.scene.quaternion);\n    }\n  }\n\n  public deactivate() {\n    this._active = false;\n\n    if (this._rotationIndicator) {\n      this._rotationIndicator.hide();\n    }\n  }\n\n  public updateAxis(axis: THREE.Vector3) {\n    this._axis.copy(axis);\n  }\n\n  public setInitialPos(coords: THREE.Vector2[]) {\n    this._prevPos.copy(coords[0]);\n  }\n\n  public process({ view3d, xrCam }: XRRenderContext, { coords }: XRInputs) {\n    if (!this._active || coords.length !== 1) return;\n\n    const prevPos = this._prevPos;\n    const motion = this._motion;\n\n    const model = view3d.model!;\n    const coord = coords[0];\n\n    const modelPos = model.scene.position.clone();\n    const ndcModelPos = new THREE.Vector2().fromArray(modelPos.project(xrCam).toArray());\n\n    // Get the rotation angle with the model's NDC coordinates as the center.\n    const rotationAngle = getRotationAngle(ndcModelPos, prevPos, coord) * this._userScale;\n    const rotation = new THREE.Quaternion().setFromAxisAngle(this._axis, rotationAngle);\n    const interpolated = this._getInterpolatedQuaternion();\n\n    this._fromQuat.copy(interpolated);\n    this._toQuat.premultiply(rotation);\n\n    motion.reset(0);\n    motion.setEndDelta(1);\n\n    prevPos.copy(coord);\n  }\n\n  public update({ model }: XRRenderContext, deltaTime: number) {\n    if (!this._active) return;\n\n    const motion = this._motion;\n    motion.update(deltaTime);\n\n    const interpolated = this._getInterpolatedQuaternion();\n\n    this.rotation.copy(interpolated);\n    model.scene.quaternion.copy(interpolated);\n  }\n\n  private _getInterpolatedQuaternion(): THREE.Quaternion {\n    const motion = this._motion;\n    const toEuler = this._toQuat;\n    const fromEuler = this._fromQuat;\n\n    const progress = motion.val;\n\n    return new THREE.Quaternion().copy(fromEuler).slerp(toEuler, progress);\n  }\n}\n\nexport default ARSwirlControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport Motion from \"../../Motion\";\nimport * as DEFAULT from \"~/consts/default\";\nimport * as EASING from \"~/consts/easing\";\nimport * as TOUCH from \"~/consts/touch\";\nimport { XRRenderContext, XRContext, XRInputs } from \"~/types/internal\";\nimport ARControl from \"../common/ARControl\";\n\nenum STATE {\n  WAITING,\n  TRANSLATING,\n  BOUNCING,\n}\n\n/**\n * Options for {@link ARFloorTranslateControl}\n * @category Controls-AR\n * @interface\n * @property {number} [threshold=0.05] Threshold until translation works, this value is relative to screen size.\n * @property {number} [hoverAmplitude=0.01] How much model will hover up and down, in meter. Default value is 0.01(1cm).\n * @property {number} [hoverHeight=0.1] How much model will float from the floor, in meter. Default value is 0.1(10cm).\n * @property {number} [hoverPeriod=1000] Hover cycle's period, in milisecond.\n * @property {function} [hoverEasing=EASING.SINE_WAVE] Hover animation's easing function.\n * @property {number} [bounceDuration=1000] Bounce-to-floor animation's duration, in milisecond.\n * @property {number} [bounceEasing=EASING.EASE_OUT_BOUNCE] Bounce-to-floor animation's easing function.\n */\nexport interface ARFloorTranslateControlOption {\n  threshold: number;\n  hoverAmplitude: number;\n  hoverHeight: number;\n  hoverPeriod: number;\n  hoverEasing: (x: number) => number;\n  bounceDuration: number;\n  bounceEasing: (x: number) => number;\n}\n\n/**\n * Model's translation(position) control for {@link ARFloorControl}\n * @category Controls-AR\n */\nclass ARFloorTranslateControl implements ARControl {\n  // Options\n  private _hoverAmplitude: number;\n  private _hoverHeight: number;\n\n  // Internal states\n  private _modelPosition = new THREE.Vector3();\n  private _hoverPosition = new THREE.Vector3();\n  private _floorPosition = new THREE.Vector3();\n  private _dragPlane = new THREE.Plane();\n  private _enabled = true;\n  private _state = STATE.WAITING;\n  private _initialPos = new THREE.Vector2();\n  private _hoverMotion: Motion;\n  private _bounceMotion: Motion;\n\n  /**\n   * Whether this control is enabled or not\n   * @readonly\n   */\n  public get enabled() { return this._enabled; }\n  /**\n   * Position including hover/bounce animation offset from the floor.\n   * @readonly\n   */\n  public get modelPosition() { return this._modelPosition.clone(); }\n  /**\n   * Last detected floor position\n   * @readonly\n   */\n  public get floorPosition() { return this._floorPosition.clone(); }\n  /**\n   * How much model will hover up and down, in meter.\n   */\n  public get hoverAmplitude() { return this._hoverAmplitude; }\n  /**\n   * How much model will float from the floor, in meter.\n   */\n  public get hoverHeight() { return this._hoverHeight; }\n\n  public set hoverAmplitude(val: number) { this._hoverAmplitude = val; }\n  public set hoverHeight(val: number) { this._hoverHeight = val; }\n\n  /**\n   * Create new instance of ARTranslateControl\n   * @param {ARFloorTranslateControlOption} [options={}] Options\n   */\n  constructor({\n    hoverAmplitude = 0.01,\n    hoverHeight = 0.1,\n    hoverPeriod = 1000,\n    hoverEasing = EASING.SINE_WAVE,\n    bounceDuration = 1000,\n    bounceEasing = EASING.EASE_OUT_BOUNCE,\n  }: Partial<ARFloorTranslateControlOption> = {}) {\n    this._hoverAmplitude = hoverAmplitude;\n    this._hoverHeight = hoverHeight;\n    this._hoverMotion = new Motion({\n      loop: true,\n      duration: hoverPeriod,\n      easing: hoverEasing,\n    });\n    this._bounceMotion = new Motion({\n      duration: bounceDuration,\n      easing: bounceEasing,\n      range: DEFAULT.INFINITE_RANGE,\n    });\n  }\n\n  public initFloorPosition(position: THREE.Vector3) {\n    this._modelPosition.copy(position);\n    this._floorPosition.copy(position);\n    this._hoverPosition.copy(position);\n    this._hoverPosition.setY(position.y + this._hoverHeight);\n  }\n\n  // tslint:disable-next-line no-empty\n  public init(ctx: XRRenderContext) {}\n\n  // tslint:disable-next-line no-empty\n  public destroy(ctx: XRContext) {}\n\n  /**\n   * Enable this control\n   */\n  public enable() {\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this control\n   */\n  public disable() {\n    this._enabled = false;\n    this.deactivate();\n  }\n\n  public activate({ model }: XRRenderContext, gesture: TOUCH.GESTURE) {\n    if (!this._enabled) return;\n\n    const modelBbox = model.bbox;\n    const modelBboxYOffset = modelBbox.getCenter(new THREE.Vector3()).y - modelBbox.min.y;\n    this._dragPlane.set(new THREE.Vector3(0, 1, 0), -(this._floorPosition.y + this._hoverHeight + modelBboxYOffset));\n\n    this._hoverMotion.reset(0);\n    this._hoverMotion.setEndDelta(1);\n    this._state = STATE.TRANSLATING;\n  }\n\n  public deactivate() {\n    if (!this._enabled || this._state === STATE.WAITING) {\n      this._state = STATE.WAITING;\n      return;\n    }\n\n    this._state = STATE.BOUNCING;\n\n    const floorPosition = this._floorPosition;\n    const modelPosition = this._modelPosition;\n    const hoverPosition = this._hoverPosition;\n    const bounceMotion = this._bounceMotion;\n\n    const hoveringAmount = modelPosition.y - floorPosition.y;\n    bounceMotion.reset(modelPosition.y);\n    bounceMotion.setEndDelta(-hoveringAmount);\n\n    // Restore hover pos\n    hoverPosition.copy(floorPosition);\n    hoverPosition.setY(floorPosition.y + this._hoverHeight);\n  }\n\n  public setInitialPos(coords: THREE.Vector2[]) {\n    this._initialPos.copy(coords[0]);\n  }\n\n  public process({ view3d, model, frame, referenceSpace, xrCam }: XRRenderContext, { hitResults }: XRInputs) {\n    const state = this._state;\n    const notActive = state === STATE.WAITING || state === STATE.BOUNCING;\n    if (!hitResults || hitResults.length !== 1 || notActive) return;\n\n    const hitResult = hitResults[0];\n\n    const prevFloorPosition = this._floorPosition.clone();\n    const floorPosition = this._floorPosition;\n    const hoverPosition = this._hoverPosition;\n    const hoverHeight = this._hoverHeight;\n    const dragPlane = this._dragPlane;\n\n    const modelBbox = model.bbox;\n    const modelBboxYOffset = modelBbox.getCenter(new THREE.Vector3()).y - modelBbox.min.y;\n\n    const hitPose = hitResult.results[0] && hitResult.results[0].getPose(referenceSpace);\n    const isFloorHit = hitPose && hitPose.transform.matrix[5] >= 0.75;\n    const camPos = new THREE.Vector3().setFromMatrixPosition(xrCam.matrixWorld);\n\n    if (!hitPose || !isFloorHit) {\n      // Use previous drag plane if no hit plane is found\n      const targetRayPose = frame.getPose(hitResult.inputSource.targetRaySpace, view3d.renderer.threeRenderer.xr.getReferenceSpace());\n      const fingerDir = new THREE.Vector3().copy(targetRayPose.transform.position).sub(camPos).normalize();\n\n      const fingerRay = new THREE.Ray(camPos, fingerDir);\n      const intersection = fingerRay.intersectPlane(dragPlane, new THREE.Vector3());\n\n      if (intersection) {\n        floorPosition.copy(intersection);\n        floorPosition.setY(prevFloorPosition.y);\n        hoverPosition.copy(intersection);\n        hoverPosition.setY(intersection.y - modelBboxYOffset);\n      }\n      return;\n    }\n\n    const hitMatrix = new THREE.Matrix4().fromArray(hitPose.transform.matrix);\n    const hitPosition = new THREE.Vector3().setFromMatrixPosition(hitMatrix);\n\n    // Set new floor level when it's increased at least 10cm\n    const currentDragPlaneHeight = -dragPlane.constant;\n    const hitDragPlaneHeight = hitPosition.y + hoverHeight + modelBboxYOffset;\n\n    if (hitDragPlaneHeight - currentDragPlaneHeight > 0.1) {\n      dragPlane.constant = -hitDragPlaneHeight;\n    }\n\n    const camToHitDir = new THREE.Vector3().subVectors(hitPosition, camPos).normalize();\n    const camToHitRay = new THREE.Ray(camPos, camToHitDir);\n    const hitOnDragPlane = camToHitRay.intersectPlane(dragPlane, new THREE.Vector3());\n\n    if (!hitOnDragPlane) return;\n\n    floorPosition.copy(hitOnDragPlane);\n    floorPosition.setY(hitPosition.y);\n    hoverPosition.copy(hitOnDragPlane);\n    hoverPosition.setY(hitOnDragPlane.y - modelBboxYOffset);\n  }\n\n  public update({ model }: XRRenderContext, delta: number) {\n    const state = this._state;\n    const modelPosition = this._modelPosition;\n    const hoverPosition = this._hoverPosition;\n    if (state === STATE.WAITING) return;\n\n    if (state !== STATE.BOUNCING) {\n      // Hover\n      const hoverMotion = this._hoverMotion;\n      hoverMotion.update(delta);\n\n      // Change only x, y component of position\n      const hoverOffset = hoverMotion.val * this._hoverAmplitude;\n      modelPosition.copy(hoverPosition);\n      modelPosition.setY(hoverPosition.y + hoverOffset);\n    } else {\n      // Bounce\n      const bounceMotion = this._bounceMotion;\n      bounceMotion.update(delta);\n\n      modelPosition.setY(bounceMotion.val);\n\n      if (bounceMotion.progress >= 1) {\n        this._state = STATE.WAITING;\n      }\n    }\n\n    const modelBbox = model.bbox;\n    const modelYOffset = modelBbox.getCenter(new THREE.Vector3()).y - modelBbox.min.y;\n\n    // modelPosition = where model.bbox.min.y should be\n    model.scene.position.copy(modelPosition.clone().setY(modelPosition.y + modelYOffset));\n  }\n}\n\nexport default ARFloorTranslateControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport { toPowerOfTwo } from \"~/utils\";\n\n/**\n * Options for {@link ScaleUI}\n * @category Controls-AR\n * @interface\n * @property {number} [width=0.1] UI width, in meter.\n * @property {number} [padding=20] UI's padding value, in px.\n * @property {number} [offset=0.05] UI's Y-axis offset from model's bbox max y, in meter.\n * @property {number} [font=\"64px sans-serif\"] UI's font. See {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/font CanvasRenderingContext2D#font}\n * @property {number} [color=\"white\"] UI's font color. See {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/fillStyle CanvasRenderingContext2D#fillStyle}\n */\nexport interface ScaleUIOption {\n  width: number;\n  padding: number;\n  offset: number;\n  font: CanvasRenderingContext2D[\"font\"];\n  color: CanvasRenderingContext2D[\"fillStyle\"];\n}\n\n/**\n * UI element displaying model's scale percentage info when user chaning model's scale.\n * @category Controls-AR\n */\nclass ScaleUI {\n  private _canvas: HTMLCanvasElement;\n  private _ctx: CanvasRenderingContext2D;\n  private _mesh: THREE.Mesh;\n  private _texture: THREE.CanvasTexture;\n  private _font: CanvasRenderingContext2D[\"font\"];\n  private _color: CanvasRenderingContext2D[\"fillStyle\"];\n  private _padding: number;\n  private _offset: number;\n  private _height: number;\n\n  /**\n   * Scale UI's plane mesh\n   * @readonly\n   */\n  public get mesh() { return this._mesh; }\n  /**\n   * Scale UI's height value\n   * @readonly\n   */\n  public get height() { return this._height; }\n  /**\n   * Whether UI is visible or not.\n   * @readonly\n   */\n  public get visible() { return this._mesh.visible; }\n\n  /**\n   * Create new instance of ScaleUI\n   * @param {ScaleUIOption} [options={}] Options\n   */\n  constructor({\n    width = 0.1,\n    padding = 20,\n    offset = 0.05,\n    font = \"64px sans-serif\",\n    color = \"white\",\n  }: Partial<ScaleUIOption> = {}) {\n    const canvas = document.createElement(\"canvas\");\n    const ctx = canvas.getContext(\"2d\")!;\n\n    ctx.font = font;\n\n    // Maximum canvas width should be equal to this\n    const maxText = ctx.measureText(\"100%\");\n\n    // Following APIs won't work on IE, but it's WebXR so I think it's okay\n    const maxWidth = maxText.actualBoundingBoxLeft + maxText.actualBoundingBoxRight;\n    const maxHeight = maxText.actualBoundingBoxAscent + maxText.actualBoundingBoxDescent;\n    const widthPowerOfTwo = toPowerOfTwo(maxWidth);\n\n    canvas.width = widthPowerOfTwo;\n    canvas.height = widthPowerOfTwo;\n\n    // This considers increased amount by making width to power of two\n    const planeWidth = width * (widthPowerOfTwo / maxWidth);\n\n    this._ctx = ctx;\n    this._canvas = canvas;\n    this._height = planeWidth * maxHeight / maxWidth; // Text height inside plane\n    this._texture = new THREE.CanvasTexture(canvas);\n\n    // Plane is square\n    const uiGeometry = new THREE.PlaneGeometry(planeWidth, planeWidth);\n    const mesh = new THREE.Mesh(\n      uiGeometry,\n      new THREE.MeshBasicMaterial({\n        map: this._texture,\n        transparent: true,\n      }),\n    );\n    mesh.matrixAutoUpdate = false;\n\n    this._mesh = mesh;\n    this._font = font;\n    this._color = color;\n    this._padding = padding;\n    this._offset = offset;\n  }\n\n  public updatePosition(position: THREE.Vector3, focus: THREE.Vector3) {\n    // Update mesh\n    const mesh = this._mesh;\n    mesh.lookAt(focus);\n    mesh.position.copy(position);\n    mesh.position.setY(position.y + this._height / 2 + this._offset);\n    mesh.updateMatrix();\n  }\n\n  public updateScale(scale: number) {\n    const ctx = this._ctx;\n    const canvas = this._canvas;\n    const padding = this._padding;\n    const scalePercentage = (scale * 100).toFixed(0);\n\n    ctx.clearRect(0, 0, canvas.width, canvas.height);\n\n    const centerX = canvas.width / 2;\n    const centerY = canvas.height / 2;\n\n    // Draw round rect\n    const textSize = ctx.measureText(`${scalePercentage}%`);\n    const halfWidth = (textSize.actualBoundingBoxLeft + textSize.actualBoundingBoxRight) / 2;\n    const halfHeight = (textSize.actualBoundingBoxAscent + textSize.actualBoundingBoxDescent) / 2;\n\n    ctx.beginPath();\n\n    ctx.moveTo(centerX - halfWidth, centerY - halfHeight - padding);\n    ctx.lineTo(centerX + halfWidth, centerY - halfHeight - padding);\n    ctx.quadraticCurveTo(centerX + halfWidth + padding, centerY - halfHeight - padding, centerX + halfWidth + padding, centerY - halfHeight);\n    ctx.lineTo(centerX + halfWidth + padding, centerY + halfHeight);\n    ctx.quadraticCurveTo(centerX + halfWidth + padding, centerY + halfHeight + padding, centerX + halfWidth, centerY + halfHeight + padding);\n    ctx.lineTo(centerX - halfWidth, centerY + halfHeight + padding);\n    ctx.quadraticCurveTo(centerX - halfWidth - padding, centerY + halfHeight + padding, centerX - halfWidth - padding, centerY + halfHeight);\n    ctx.lineTo(centerX - halfWidth - padding, centerY - halfHeight);\n    ctx.quadraticCurveTo(centerX - halfWidth - padding, centerY - halfHeight - padding, centerX - halfWidth, centerY - halfHeight - padding);\n\n    ctx.closePath();\n\n    ctx.lineWidth = 5;\n    ctx.fillStyle = \"rgba(0, 0, 0, 0.3)\";\n    ctx.fill();\n    ctx.stroke();\n\n    // Draw text\n    ctx.font = this._font;\n    ctx.textAlign = \"center\";\n    ctx.textBaseline = \"middle\";\n    ctx.strokeStyle = this._color;\n    ctx.fillStyle = this._color;\n\n    ctx.fillText(`${scalePercentage}%`, centerX, centerY);\n\n    this._texture.needsUpdate = true;\n  }\n\n  /**\n   * Show UI\n   */\n  public show() {\n    this._mesh.visible = true;\n  }\n\n  /**\n   * Hide UI\n   */\n  public hide() {\n    this._mesh.visible = false;\n  }\n}\n\nexport default ScaleUI;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport ARControl from \"./ARControl\";\nimport Motion from \"~/controls/Motion\";\nimport ScaleUI from \"../ui/ScaleUI\";\nimport * as TOUCH from \"~/consts/touch\";\nimport { XRRenderContext, XRContext, XRInputs } from \"~/types/internal\";\n\n/**\n * Options for {@link ARScaleControl}\n * @category Controls-AR\n * @interface\n * @property {number} [min=0.05] Minimum scale, default is 0.05(5%)\n * @property {number} [max=2] Maximum scale, default is 2(200%)\n */\nexport interface ARScaleControlOption {\n  min: number;\n  max: number;\n}\n\n/**\n * Model's scale controller which works on AR(WebXR) mode.\n * @category Controls-AR\n */\nclass ARScaleControl implements ARControl {\n  // TODO: add option for \"user scale\"\n\n  // Internal states\n  private _motion: Motion;\n  private _enabled = true;\n  private _active = false;\n  private _prevCoordDistance = -1;\n  private _scaleMultiplier = 1;\n  private _initialScale = new THREE.Vector3();\n  private _ui = new ScaleUI();\n\n  /**\n   * Whether this control is enabled or not\n   * @readonly\n   */\n  public get enabled() { return this._enabled; }\n  public get scale() {\n    return this._initialScale.clone().multiplyScalar(this._scaleMultiplier);\n  }\n  public get scaleMultiplier() { return this._scaleMultiplier; }\n  /**\n   * Range of the scale\n   * @readonly\n   */\n  public get range() { return this._motion.range; }\n\n  /**\n   * Create new instance of ARScaleControl\n   * @param {ARScaleControlOption} [options={}] Options\n   */\n  constructor({\n    min = 0.05,\n    max = 2,\n  } = {}) {\n    this._motion = new Motion({ duration: 0, range: { min, max } });\n    this._motion.reset(1); // default scale is 1(100%)\n    this._ui = new ScaleUI();\n  }\n\n  public init({ view3d }: XRRenderContext) {\n    this._initialScale.copy(view3d.model!.scene.scale);\n    view3d.scene.add(this._ui.mesh);\n  }\n\n  public destroy({ view3d }: XRContext) {\n    view3d.scene.remove(this._ui.mesh);\n  }\n\n  public setInitialPos(coords: THREE.Vector2[]) {\n    this._prevCoordDistance = new THREE.Vector2().subVectors(coords[0], coords[1]).length();\n  }\n\n  /**\n   * Enable this control\n   */\n  public enable() {\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this control\n   */\n  public disable() {\n    this._enabled = false;\n    this.deactivate();\n  }\n\n  public activate(ctx: XRRenderContext, gesture: TOUCH.GESTURE) {\n    this._active = true;\n    this._ui.show();\n    this._updateUIPosition(ctx);\n  }\n\n  public deactivate() {\n    this._active = false;\n    this._ui.hide();\n    this._prevCoordDistance = -1;\n  }\n\n  /**\n   * Update scale range\n   * @param min Minimum scale\n   * @param max Maximum scale\n   */\n  public setRange(min: number, max: number) {\n    this._motion.range = { min, max };\n  }\n\n  public process(ctx: XRRenderContext, { coords }: XRInputs) {\n    if (coords.length !== 2 || !this._enabled || !this._active) return;\n\n    const motion = this._motion;\n    const distance = new THREE.Vector2().subVectors(coords[0], coords[1]).length();\n    const delta = (distance - this._prevCoordDistance);\n\n    motion.setEndDelta(delta);\n    this._prevCoordDistance = distance;\n\n    this._updateUIPosition(ctx);\n  }\n\n  public update({ model }: XRRenderContext, deltaTime: number) {\n    if (!this._enabled || !this._active) return;\n\n    const motion = this._motion;\n    motion.update(deltaTime);\n\n    this._scaleMultiplier = motion.val;\n    this._ui.updateScale(this._scaleMultiplier);\n\n    model.scene.scale.copy(this.scale);\n  }\n\n  private _updateUIPosition({ view3d, xrCam }: XRRenderContext) {\n    // Update UI\n    const model = view3d.model!;\n    const camPos = new THREE.Vector3().setFromMatrixPosition(xrCam.matrixWorld);\n    const uiPos = model.scene.position.clone().setY(model.bbox.max.y);\n\n    this._ui.updatePosition(uiPos, camPos);\n  }\n}\n\nexport default ARScaleControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport Motion from \"../../Motion\";\nimport { Range } from \"~/types/internal\";\n\n/**\n * Options for {@link FloorIndicator}\n * @category Controls-AR\n * @interface\n * @property {number} [ringOpacity=0.3] Ring's opacity.\n * @property {number} [dirIndicatorOpacity=1] Direction indicator's opacity.\n * @property {number} [fadeoutDuration=1000] Fadeout animation's duration.\n */\nexport interface FloorIndicatorOption {\n  opacityMin: number;\n  opacityMax: number;\n  fadeoutDuration: number;\n}\n\n/**\n * Ring type indicator for showing where the model's at.\n * @category Controls-AR\n */\nclass FloorIndicator {\n  private _mesh: THREE.Mesh;\n  private _animator: Motion;\n  private _opacityRange: Range;\n\n  /**\n   * Ring mesh\n   */\n  public get mesh() { return this._mesh; }\n\n  /**\n   * Create new instance of FloorIndicator\n   * @param {FloorIndicatorOption} [options={}] Options\n   */\n  constructor({\n    ringOpacity = 0.3,\n    dirIndicatorOpacity = 1,\n    fadeoutDuration = 1000,\n  } = {}) {\n    const deg10 = Math.PI / 18;\n\n    const dimmedRingGeomtry = new THREE.RingGeometry(0.975, 1, 150, 1, -6 * deg10, 30 * deg10);\n    const reticle = new THREE.CircleGeometry(0.1, 30, 0, Math.PI * 2);\n    dimmedRingGeomtry.merge(reticle);\n\n    const highlightedRingGeometry = new THREE.RingGeometry(0.96, 1.015, 30, 1, 25 * deg10, 4 * deg10);\n\n    // Create little triangle in ring\n    const ringVertices = highlightedRingGeometry.vertices;\n    const trianglePart = ringVertices.slice(Math.floor(11 * ringVertices.length / 16), Math.floor(13 * ringVertices.length / 16));\n    const firstY = trianglePart[0].y;\n    const midIndex = Math.floor(trianglePart.length / 2);\n    trianglePart.forEach((vec, vecIdx) => {\n      const offsetAmount = 0.025 * (midIndex - Math.abs(vecIdx - midIndex));\n      vec.setY(firstY - offsetAmount);\n    });\n\n    const indicatorMat = new THREE.Matrix4().makeRotationX(-Math.PI / 2);\n    const mergedGeometry = new THREE.Geometry();\n\n    mergedGeometry.merge(dimmedRingGeomtry, indicatorMat, 0);\n    mergedGeometry.merge(highlightedRingGeometry, indicatorMat, 1);\n\n    const dimmedMaterial = new THREE.MeshBasicMaterial({\n      transparent: true,\n      opacity: ringOpacity,\n      color: 0xffffff,\n    });\n    const highlightMaterial = new THREE.MeshBasicMaterial({\n      transparent: true,\n      opacity: dirIndicatorOpacity,\n      color: 0xffffff,\n    });\n    const materials = [dimmedMaterial, highlightMaterial];\n\n    this._mesh = new THREE.Mesh(mergedGeometry, materials);\n    this._mesh.matrixAutoUpdate = false;\n    this._animator = new Motion({ duration: fadeoutDuration });\n    this._opacityRange = {\n      min: ringOpacity,\n      max: dirIndicatorOpacity,\n    };\n  }\n\n  public update({\n    delta,\n    scale,\n    position,\n    rotation,\n  }: {\n    delta: number,\n    scale: number,\n    position: THREE.Vector3,\n    rotation: THREE.Quaternion,\n  }) {\n    const mesh = this._mesh;\n    const animator = this._animator;\n\n    if (!this._mesh.visible) return;\n\n    animator.update(delta);\n\n    const materials = this._mesh.material as THREE.Material[];\n    const minOpacityMat = materials[0];\n    const maxOpacityMat = materials[1];\n    const opacityRange = this._opacityRange;\n\n    minOpacityMat.opacity = animator.val * opacityRange.min;\n    maxOpacityMat.opacity = animator.val * opacityRange.max;\n\n    if (animator.val <= 0) {\n      mesh.visible = false;\n    }\n\n    // Update mesh\n    mesh.scale.setScalar(scale);\n    mesh.position.copy(position);\n    mesh.quaternion.copy(rotation);\n    mesh.updateMatrix();\n  }\n\n  public show() {\n    this._mesh.visible = true;\n    this._animator.reset(1);\n  }\n\n  public fadeout() {\n    this._animator.setEndDelta(-1);\n  }\n}\n\nexport default FloorIndicator;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nexport enum GESTURE {\n  NONE = 0,\n  ONE_FINGER_HORIZONTAL = 1,\n  ONE_FINGER_VERTICAL = 2,\n  ONE_FINGER = 1 | 2,\n  TWO_FINGER_HORIZONTAL = 4,\n  TWO_FINGER_VERTICAL = 8,\n  TWO_FINGER = 4 | 8,\n  PINCH = 16,\n}\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport * as TOUCH from \"~/consts/touch\";\n\nenum STATE {\n  WAITING,\n  IN_DEADZONE,\n  OUT_OF_DEADZONE,\n}\n\n/**\n * Options for {@link DeadzoneChecker}\n * @category Controls-AR\n * @interface\n * @property {number} size Size of the deadzone circle.\n */\nexport interface DeadzoneCheckerOption {\n  size: number;\n}\n\n/**\n * Deadzone checker for deadzone-based controls\n * @category Controls-AR\n */\nclass DeadzoneChecker {\n  // Options\n  private _size: number;\n\n  // Internal States\n  private _state = STATE.WAITING;\n  private _detectedGesture = TOUCH.GESTURE.NONE;\n  private _testingGestures = TOUCH.GESTURE.NONE;\n  private _lastFingerCount = 0;\n  private _aspect: number = 1;\n\n  // Store two prev positions, as it should be maintained separately\n  private _prevOneFingerPos = new THREE.Vector2();\n  private _prevTwoFingerPos = new THREE.Vector2();\n  private _initialTwoFingerDistance = 0;\n  private _prevOneFingerPosInitialized = false;\n  private _prevTwoFingerPosInitialized = false;\n\n  /**\n   * Size of the deadzone.\n   * @type number\n   */\n  public get size() { return this._size; }\n  public get inDeadzone() { return this._state === STATE.IN_DEADZONE; }\n\n  public set size(val: number) { this._size = val; }\n\n  /**\n   * Create new DeadzoneChecker\n   * @param {DeadzoneCheckerOption} [options={}] Options\n   */\n  constructor({\n    size = 0.1,\n  }: Partial<DeadzoneCheckerOption> = {}) {\n    this._size = size;\n  }\n\n  /**\n   * Set screen aspect(height / width)\n   * @param aspect Screen aspect value\n   */\n  public setAspect(aspect: number) {\n    this._aspect = aspect;\n  }\n\n  public setFirstInput(inputs: THREE.Vector2[]) {\n    const fingerCount = inputs.length;\n\n    if (fingerCount === 1 && !this._prevOneFingerPosInitialized) {\n      this._prevOneFingerPos.copy(inputs[0]);\n      this._prevOneFingerPosInitialized = true;\n    } else if (fingerCount === 2 && !this._prevTwoFingerPosInitialized) {\n      this._prevTwoFingerPos.copy(new THREE.Vector2().addVectors(inputs[0], inputs[1]).multiplyScalar(0.5));\n      this._initialTwoFingerDistance = new THREE.Vector2().subVectors(inputs[0], inputs[1]).length();\n      this._prevTwoFingerPosInitialized = true;\n    }\n\n    this._lastFingerCount = fingerCount;\n    this._state = STATE.IN_DEADZONE;\n  }\n\n  public addTestingGestures(...gestures: TOUCH.GESTURE[]) {\n    this._testingGestures = this._testingGestures | gestures.reduce((gesture, accumulated) => gesture | accumulated, TOUCH.GESTURE.NONE);\n  }\n\n  public cleanup() {\n    this._testingGestures = TOUCH.GESTURE.NONE;\n    this._lastFingerCount = 0;\n    this._prevOneFingerPosInitialized = false;\n    this._prevTwoFingerPosInitialized = false;\n    this._initialTwoFingerDistance = 0;\n    this._detectedGesture = TOUCH.GESTURE.NONE;\n    this._state = STATE.WAITING;\n  }\n\n  public applyScreenAspect(inputs: THREE.Vector2[]) {\n    const aspect = this._aspect;\n\n    inputs.forEach(input => {\n      if (aspect > 1) {\n        input.setY(input.y * aspect);\n      } else {\n        input.setX(input.x / aspect);\n      }\n    });\n  }\n\n  public check(inputs: THREE.Vector2[]): TOUCH.GESTURE {\n    const state = this._state;\n    const deadzone = this._size;\n    const testingGestures = this._testingGestures;\n    const lastFingerCount = this._lastFingerCount;\n    const fingerCount = inputs.length;\n\n    if (state === STATE.OUT_OF_DEADZONE) {\n      return this._detectedGesture;\n    }\n\n    this._lastFingerCount = fingerCount;\n    this.applyScreenAspect(inputs);\n\n    if (fingerCount !== lastFingerCount) {\n      this.setFirstInput(inputs);\n      return TOUCH.GESTURE.NONE;\n    }\n\n    if (fingerCount === 1) {\n      const input = inputs[0];\n      const prevPos = this._prevOneFingerPos.clone();\n\n      const diff = new THREE.Vector2().subVectors(input, prevPos);\n      if (diff.length() > deadzone) {\n        if (Math.abs(diff.x) > Math.abs(diff.y)) {\n          if (TOUCH.GESTURE.ONE_FINGER_HORIZONTAL & testingGestures) {\n            this._detectedGesture = TOUCH.GESTURE.ONE_FINGER_HORIZONTAL;\n          }\n        } else {\n          if (TOUCH.GESTURE.ONE_FINGER_VERTICAL & testingGestures) {\n            this._detectedGesture = TOUCH.GESTURE.ONE_FINGER_VERTICAL;\n          }\n        }\n      }\n    } else if (fingerCount === 2) {\n      const middle = new THREE.Vector2().addVectors(inputs[1], inputs[0]).multiplyScalar(0.5);\n      const prevPos = this._prevTwoFingerPos.clone();\n\n      const diff = new THREE.Vector2().subVectors(middle, prevPos);\n      if (diff.length() > deadzone) {\n        if (Math.abs(diff.x) > Math.abs(diff.y)) {\n          if (TOUCH.GESTURE.TWO_FINGER_HORIZONTAL & testingGestures) {\n            this._detectedGesture = TOUCH.GESTURE.TWO_FINGER_HORIZONTAL;\n          }\n        } else {\n          if (TOUCH.GESTURE.TWO_FINGER_VERTICAL & testingGestures) {\n            this._detectedGesture = TOUCH.GESTURE.TWO_FINGER_VERTICAL;\n          }\n        }\n      }\n\n      const distance = new THREE.Vector2().subVectors(inputs[1], inputs[0]).length();\n\n      if (Math.abs(distance - this._initialTwoFingerDistance) > deadzone) {\n        if (TOUCH.GESTURE.PINCH & testingGestures) {\n          this._detectedGesture = TOUCH.GESTURE.PINCH;\n        }\n      }\n    }\n\n    if (this._detectedGesture !== TOUCH.GESTURE.NONE) {\n      this._state = STATE.OUT_OF_DEADZONE;\n    }\n\n    return this._detectedGesture;\n  }\n}\n\nexport default DeadzoneChecker;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport ARSwirlControl, { ARSwirlControlOption } from \"../common/ARSwirlControl\";\nimport ARFloorTranslateControl, { ARFloorTranslateControlOption } from \"./ARFloorTranslateControl\";\nimport ARScaleControl, { ARScaleControlOption } from \"../common/ARScaleControl\";\nimport FloorIndicator, { FloorIndicatorOption } from \"../ui/FloorIndicator\";\nimport * as XR from \"~/consts/xr\";\nimport * as TOUCH from \"~/consts/touch\";\nimport { XRRenderContext, XRContext, XRInputs } from \"~/types/internal\";\nimport DeadzoneChecker, { DeadzoneCheckerOption } from \"../common/DeadzoneChecker\";\n\n/**\n * Options for the {@link ARFloorControl}\n * @category Controls-AR\n * @interface\n * @property {ARSwirlControlOptions} rotate Options for {@link ARSwirlControl}\n * @property {ARFloorTranslateControlOption} translate Options for {@link ARFloorTranslateControl}\n * @property {ARScaleControlOption} scale Options for {@link ARScaleControl}\n * @property {FloorIndicatorOption} floorIndicator Options for {@link FloorIndicator}\n * @property {DeadzoneCheckerOption} deadzone Options for {@link DeadzoneChecker}\n */\nexport interface ARFloorControlOption {\n  rotate: Partial<ARSwirlControlOption>;\n  translate: Partial<ARFloorTranslateControlOption>;\n  scale: Partial<ARScaleControlOption>;\n  floorIndicator: Partial<FloorIndicatorOption>;\n  deadzone: Partial<DeadzoneCheckerOption>;\n}\n\n/**\n * AR control for {@link FloorARSession}\n * @category Controls-AR\n */\nclass ARFloorControl {\n  private _enabled = true;\n  private _initialized = false;\n  private _modelHit = false;\n  private _hitTestSource: any = null;\n  private _deadzoneChecker: DeadzoneChecker;\n  private _rotateControl: ARSwirlControl;\n  private _translateControl: ARFloorTranslateControl;\n  private _scaleControl: ARScaleControl;\n  private _floorIndicator: FloorIndicator;\n\n  /**\n   * Return whether this control is enabled or not\n   */\n  public get enabled() { return this._enabled; }\n  /**\n   * {@link ARSwirlControl} in this control\n   */\n  public get rotate() { return this._rotateControl; }\n  /**\n   * {@link ARFloorTranslateControl} in this control\n   */\n  public get translate() { return this._translateControl; }\n  /**\n   * {@link ARScaleControl} in this control\n   */\n  public get scale() { return this._scaleControl; }\n  public get controls() {\n    return [this._rotateControl, this._translateControl, this._scaleControl];\n  }\n\n  /**\n   * Create new instance of ARFloorControl\n   * @param {ARFloorControlOption} options Options\n   */\n  constructor(options: Partial<ARFloorControlOption> = {}) {\n    this._rotateControl = new ARSwirlControl({\n      showIndicator: false,\n      ...options.rotate,\n    });\n    this._translateControl = new ARFloorTranslateControl(options.translate);\n    this._scaleControl = new ARScaleControl(options.scale);\n    this._floorIndicator = new FloorIndicator(options.floorIndicator);\n    this._deadzoneChecker = new DeadzoneChecker(options.deadzone);\n  }\n\n  public init(ctx: XRRenderContext, initialFloorPos: THREE.Vector3) {\n    const { session, view3d, size } = ctx;\n\n    this.controls.forEach(control => control.init(ctx));\n    this._translateControl.initFloorPosition(initialFloorPos);\n    this._deadzoneChecker.setAspect(size.height / size.width);\n\n    view3d.scene.add(this._floorIndicator.mesh);\n\n    this._initialized = true;\n\n    session.requestHitTestSourceForTransientInput({ profile: XR.INPUT_PROFILE.TOUCH })\n      .then((transientHitTestSource: any) => {\n        this._hitTestSource = transientHitTestSource;\n      });\n  }\n\n  /**\n   * Destroy this control and deactivate it\n   * @param view3d Instance of the {@link View3D}\n   */\n  public destroy(ctx: XRContext) {\n    if (!this._initialized) return;\n\n    if (this._hitTestSource) {\n      this._hitTestSource.cancel();\n      this._hitTestSource = null;\n    }\n\n    ctx.view3d.scene.remove(this._floorIndicator.mesh);\n\n    this.deactivate();\n    this.controls.forEach(control => control.destroy(ctx));\n\n    this._initialized = false;\n  }\n\n  public deactivate() {\n    this._modelHit = false;\n    this._deadzoneChecker.cleanup();\n    this.controls.forEach(control => control.deactivate());\n  }\n\n  /**\n   * Enable this control\n   */\n  public enable() {\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this control\n   */\n  public disable() {\n    this._enabled = false;\n    this.deactivate();\n  }\n\n  public update(ctx: XRRenderContext) {\n    const { view3d, session, frame } = ctx;\n    const hitTestSource = this._hitTestSource;\n\n    if (!hitTestSource || !view3d.model) return;\n\n    const deadzoneChecker = this._deadzoneChecker;\n    const inputSources = session.inputSources;\n    const hitResults = frame.getHitTestResultsForTransientInput(hitTestSource);\n    const coords = this._hitResultToVector(hitResults);\n    const xrInputs = {\n      coords,\n      inputSources,\n      hitResults,\n    };\n\n    if (deadzoneChecker.inDeadzone) {\n      this._checkDeadzone(ctx, xrInputs);\n    } else {\n      this._processInput(ctx, xrInputs);\n    }\n    this._updateControls(ctx);\n  }\n\n  public onSelectStart = (ctx: XRRenderContext) => {\n    const { view3d, frame, xrCam, referenceSpace } = ctx;\n    const hitTestSource = this._hitTestSource;\n\n    if (!hitTestSource || !this._enabled) return;\n\n    const deadzoneChecker = this._deadzoneChecker;\n    const rotateControl = this._rotateControl;\n    const translateControl = this._translateControl;\n    const scaleControl = this._scaleControl;\n\n    // Update deadzone testing gestures\n    if (rotateControl.enabled) {\n      deadzoneChecker.addTestingGestures(TOUCH.GESTURE.ONE_FINGER);\n    }\n    if (translateControl.enabled) {\n      deadzoneChecker.addTestingGestures(TOUCH.GESTURE.ONE_FINGER);\n    }\n    if (scaleControl.enabled) {\n      deadzoneChecker.addTestingGestures(TOUCH.GESTURE.PINCH);\n    }\n\n    const hitResults = frame.getHitTestResultsForTransientInput(hitTestSource);\n    const coords = this._hitResultToVector(hitResults);\n    deadzoneChecker.applyScreenAspect(coords);\n    deadzoneChecker.setFirstInput(coords);\n\n    if (coords.length === 1) {\n      // Check finger is on the model\n      const modelBbox = view3d.model!.bbox;\n\n      const targetRayPose = frame.getPose(hitResults[0].inputSource.targetRaySpace, referenceSpace);\n      const camPos = new THREE.Vector3().setFromMatrixPosition(xrCam.matrixWorld);\n\n      const fingerDir = new THREE.Vector3().copy(targetRayPose.transform.position).sub(camPos).normalize();\n      const fingerRay = new THREE.Ray(camPos, fingerDir);\n      const intersection = fingerRay.intersectBox(modelBbox, new THREE.Vector3());\n\n      if (intersection) {\n        // Touch point intersected with model\n        this._modelHit = true;\n      }\n    }\n\n    this._floorIndicator.show();\n  }\n\n  public onSelectEnd = () => {\n    this.deactivate();\n    this._floorIndicator.fadeout();\n  }\n\n  private _checkDeadzone(ctx: XRRenderContext, { coords }: XRInputs) {\n    const gesture = this._deadzoneChecker.check(coords.map(coord => coord.clone()));\n    const rotateControl = this._rotateControl;\n    const translateControl = this._translateControl;\n    const scaleControl = this._scaleControl;\n\n    if (gesture === TOUCH.GESTURE.NONE) return;\n\n    switch (gesture) {\n      case TOUCH.GESTURE.ONE_FINGER_HORIZONTAL:\n      case TOUCH.GESTURE.ONE_FINGER_VERTICAL:\n        if (this._modelHit) {\n          translateControl.activate(ctx, gesture);\n          translateControl.setInitialPos(coords);\n        } else {\n          rotateControl.activate(ctx, gesture);\n          rotateControl.setInitialPos(coords);\n        }\n        break;\n      case TOUCH.GESTURE.PINCH:\n        scaleControl.activate(ctx, gesture);\n        scaleControl.setInitialPos(coords);\n        break;\n    }\n  }\n\n  private _processInput(ctx: XRRenderContext, inputs: XRInputs) {\n    this.controls.forEach(control => control.process(ctx, inputs));\n  }\n\n  private _updateControls(ctx: XRRenderContext) {\n    const { view3d, model, delta } = ctx;\n    const deltaMilisec = delta * 1000;\n\n    this.controls.forEach(control => control.update(ctx, deltaMilisec));\n\n    model.scene.updateMatrix();\n\n    const modelRotation = this._rotateControl.rotation;\n    const floorPosition = this._translateControl.floorPosition;\n    view3d.scene.update(model, {\n      floorPosition,\n    });\n\n    // Get a scaled bbox, which only has scale applied on it.\n    const scaleControl = this._scaleControl;\n    const scaledBbox = model.initialBbox;\n    scaledBbox.min.multiply(scaleControl.scale);\n    scaledBbox.max.multiply(scaleControl.scale);\n\n    const floorIndicator = this._floorIndicator;\n    const boundingSphere = scaledBbox.getBoundingSphere(new THREE.Sphere());\n\n    floorIndicator.update({\n      delta: deltaMilisec,\n      scale: boundingSphere.radius,\n      position: floorPosition,\n      rotation: modelRotation,\n    });\n  }\n\n  private _hitResultToVector(hitResults: any[]) {\n    return hitResults.map(input => {\n      return new THREE.Vector2().set(\n        input.inputSource.gamepad.axes[0],\n        -input.inputSource.gamepad.axes[1],\n      );\n    });\n  }\n}\n\nexport default ARFloorControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport WebARSession, { WebARSessionOption } from \"./WebARSession\";\nimport HitTest from \"./features/HitTest\";\nimport Animation from \"~/core/Animation\";\nimport ARFloorControl, { ARFloorControlOption } from \"~/controls/ar/floor/ARFloorControl\";\nimport { merge } from \"~/utils\";\nimport * as XR from \"~/consts/xr\";\nimport { XRRenderContext, XRContext } from \"~/types/internal\";\n\n/**\n * Options for {@link FloorARSession}.\n * This type is intersection of {@link WebARSessionOption} and {@link ARControlOption}\n * @interface\n * @extends WebARSessionOption\n * @extends ARFloorControlOption\n */\ninterface FloorARSessionOption extends WebARSessionOption, ARFloorControlOption {}\n\n/**\n * WebXR based AR session which puts model on the detected floor.\n * @category XR\n * @fires WebARSession#start\n * @fires WebARSession#end\n * @fires WebARSession#canPlace\n * @fires WebARSession#modelPlaced\n */\nclass FloorARSession extends WebARSession {\n  private _options: Partial<FloorARSessionOption>;\n  private _control: ARFloorControl | null;\n  private _renderContext: XRRenderContext | null;\n  private _modelPlaced: boolean;\n  private _hitTest: HitTest;\n\n  /**\n   * {@link ARControl} instance of this session\n   * @type ARFloorControl | null\n   */\n  public get control() { return this._control; }\n\n  /**\n   * Create new instance of FloorARSession\n   * @param {FloorARSessionOption} options Options\n   */\n  constructor(options: Partial<FloorARSessionOption> = {}) {\n    super(options);\n\n    this._control = null;\n    this._renderContext = null;\n    this._modelPlaced = false;\n\n    this._hitTest = new HitTest();\n\n    this._features = merge(this._features, this._hitTest.features);\n    this._options = options;\n  }\n\n  public onStart = (ctx: XRContext) => {\n    const { view3d, session } = ctx;\n\n    super.onStart(ctx);\n\n    this._control = new ARFloorControl(this._options);\n\n    view3d.scene.hide();\n    this._hitTest.init(session);\n  }\n\n  public onEnd = (ctx: XRContext) => {\n    const { view3d, session } = ctx;\n\n    super.onEnd(ctx);\n\n    this._renderContext = null;\n    this._modelPlaced = false;\n\n    session.removeEventListener(XR.EVENTS.SELECT_START, this._onSelectStart);\n    session.removeEventListener(XR.EVENTS.SELECT_END, this._onSelectEnd);\n\n    this._hitTest.destroy();\n    this._control!.destroy(ctx);\n    this._control = null;\n\n    view3d.scene.show();\n  }\n\n  protected _beforeRender = (ctx: XRRenderContext) => {\n    this._renderContext = ctx;\n    if (!this._modelPlaced) {\n      this._initModelPosition(ctx);\n    } else {\n      this._control!.update(ctx);\n    }\n  }\n\n  private _initModelPosition(ctx: XRRenderContext) {\n    const {view3d, frame, session} = ctx;\n    const model = view3d.model;\n    const hitTest = this._hitTest;\n\n    // Make sure the model is loaded\n    if (!hitTest.ready || !model) return;\n\n    const control = this._control!;\n    const referenceSpace = view3d.renderer.threeRenderer.xr.getReferenceSpace();\n    const hitTestResults = hitTest.getResults(frame);\n\n    if (hitTestResults.length <= 0) return;\n\n    const hit = hitTestResults[0];\n    const hitMatrix = new THREE.Matrix4().fromArray(hit.getPose(referenceSpace).transform.matrix);\n\n    // If transformed coords space's y axis is not facing up, don't use it.\n    if (hitMatrix.elements[5] < 0.75) return;\n\n    const modelRoot = model.scene;\n    const hitPosition = new THREE.Vector3().setFromMatrixPosition(hitMatrix);\n\n    // Reset rotation & update position\n    modelRoot.quaternion.set(0, 0, 0, 1);\n    modelRoot.position.copy(hitPosition);\n\n    modelRoot.position.setY(modelRoot.position.y - model.bbox.min.y);\n    modelRoot.updateMatrix();\n\n    view3d.scene.update(model);\n    view3d.scene.show();\n    this.emit(\"canPlace\");\n\n    // Don't need it\n    hitTest.destroy();\n\n    session.addEventListener(XR.EVENTS.SELECT_START, this._onSelectStart);\n    session.addEventListener(XR.EVENTS.SELECT_END, this._onSelectEnd);\n\n    this._domOverlay?.hideLoading();\n    this._modelPlaced = true;\n    this.emit(\"modelPlaced\");\n\n    // Show scale up animation\n    const originalModelScale = modelRoot.scale.clone();\n    const scaleUpAnimation = new Animation({ context: session });\n\n    scaleUpAnimation.on(\"progress\", evt => {\n      const newScale = originalModelScale.clone().multiplyScalar(evt.easedProgress);\n      modelRoot.scale.copy(newScale);\n    });\n    scaleUpAnimation.on(\"finish\", () => {\n      modelRoot.scale.copy(originalModelScale);\n      control.init(ctx, hitPosition);\n    });\n    scaleUpAnimation.start();\n  }\n\n  private _onSelectStart = (e) => {\n    this._control!.onSelectStart({\n      ...this._renderContext!,\n      frame: e.frame,\n    });\n  }\n\n  private _onSelectEnd = () => {\n    this._control!.onSelectEnd();\n  }\n}\n\nexport default FloorARSession;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport { range } from \"~/utils\";\n\n/**\n * Options for {@link ArrowIndicator}\n * @category Controls-AR\n * @interface\n * @property {string | number | THREE.Color} [color=0xffffff] Arrow color\n */\nexport interface ArrowIndicatorOption {\n  color: string | number | THREE.Color;\n}\n\n/**\n * Arrow indicator for AR model translatioon.\n * @category Controls-AR\n */\nclass ArrowIndicator {\n  private _arrows: THREE.Group[];\n  private _obj: THREE.Group;\n\n  /**\n   * {@link https://threejs.org/docs/index.html#api/en/objects/Group THREE.Group} object that contains arrows.\n   */\n  public get object() { return this._obj; }\n\n  /**\n   * Create new ArrowIndicator\n   * @param {ArrowIndicatorOption} [options={}] Options\n   */\n  constructor({\n    color = 0xffffff,\n  }: Partial<ArrowIndicatorOption> = {}) {\n    const bodyGeometry = new THREE.CylinderBufferGeometry(0.1, 0.1, 1);\n    const coneGeometry = new THREE.CylinderBufferGeometry(0, 0.5, 1, 30, 1);\n\n    bodyGeometry.translate(0, 0.5, 0);\n    coneGeometry.translate(0, 1.5, 0);\n\n    const body = new THREE.Mesh(bodyGeometry, new THREE.MeshBasicMaterial({ color }));\n    const cone = new THREE.Mesh(coneGeometry, new THREE.MeshBasicMaterial({ color }));\n    const arrow = new THREE.Group();\n\n    arrow.add(body);\n    arrow.add(cone);\n\n    this._arrows = [arrow];\n\n    this._obj = new THREE.Group();\n    this._obj.add(arrow);\n\n    range(3).forEach(idx => {\n      const copied = arrow.clone(true);\n      copied.rotateZ(Math.PI / 2 * (idx + 1));\n      this._obj.add(copied);\n      this._arrows.push(copied);\n    });\n\n    this.hide();\n  }\n\n  /**\n   * Show indicator\n   */\n  public show() {\n    this._obj.visible = true;\n  }\n\n  /**\n   * Hide indicator\n   */\n  public hide() {\n    this._obj.visible = false;\n  }\n\n  /**\n   * Change the center of the arrows to a given position\n   * @param position Position to set as center of the arrows\n   */\n  public updatePosition(position: THREE.Vector3) {\n    this._obj.position.copy(position);\n  }\n\n  /**\n   * Update the arrow's offset from the center\n   * @param offset Offset vector.\n   */\n  public updateOffset(offset: THREE.Vector3) {\n    this._arrows.forEach((arrow, idx) => {\n      const facingDirection = new THREE.Vector3(0, 1, 0).applyQuaternion(arrow.quaternion);\n      const facingOffset = facingDirection.multiply(offset);\n\n      arrow.position.copy(facingOffset);\n    });\n  }\n\n  /**\n   * Update arrow's scale\n   * @param scale Scale vector\n   */\n  public updateScale(scale: number) {\n    this._arrows.forEach(arrow => arrow.scale.setScalar(scale));\n  }\n\n  /**\n   * Update arrow's rotation.\n   * @param rotation Quaternion value to rotate arrows.\n   */\n  public updateRotation(rotation: THREE.Quaternion) {\n    this._obj.quaternion.copy(rotation);\n  }\n}\n\nexport default ArrowIndicator;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport ARControl from \"../common/ARControl\";\nimport ArrowIndicator, { ArrowIndicatorOption } from \"../ui/ArrowIndicator\";\nimport * as TOUCH from \"~/consts/touch\";\nimport { XRRenderContext, XRContext, XRInputs } from \"~/types/internal\";\n/**\n * Options for {@link ARTranslateControl}\n * @category Controls-AR\n * @interface\n * @property {ArrowIndicatorOption} arrow Options for {@link ArrowIndicator}\n */\nexport interface ARWallTranslateControlOption {\n  arrow: Partial<ArrowIndicatorOption>;\n}\n\n/**\n * Model's translation(position) control for {@link ARWallControl}\n * @category Controls-AR\n */\nclass ARWallTranslateControl implements ARControl {\n  public readonly position = new THREE.Vector3();\n  public readonly wallPosition = new THREE.Vector3();\n  public readonly hitRotation = new THREE.Quaternion();\n  // Global Y guaranteed rotation matrix\n  public readonly wallRotation = new THREE.Quaternion();\n  private _arrowIndicator: ArrowIndicator;\n\n  // Options\n\n  // Internal states\n  private _dragPlane = new THREE.Plane();\n  private _enabled = true;\n  private _active = false;\n  private _initialPos = new THREE.Vector2();\n\n  /**\n   * Whether this control is enabled or not\n   * @readonly\n   */\n  public get enabled() { return this._enabled; }\n\n  /**\n   * Create new instance of ARTranslateControl\n   * @param {ARWallTranslateControlOption} [options={}] Options\n   */\n  constructor(options: Partial<ARWallTranslateControlOption> = {}) {\n    this._arrowIndicator = new ArrowIndicator(options.arrow);\n  }\n\n  public initWallTransform({ hitPosition, hitRotation, modelPosition, wallRotation }: {\n    hitPosition: THREE.Vector3,\n    hitRotation: THREE.Quaternion,\n    modelPosition: THREE.Vector3,\n    wallRotation: THREE.Quaternion,\n  }) {\n    this.position.copy(modelPosition);\n    this.hitRotation.copy(hitRotation);\n    this.wallPosition.copy(hitPosition);\n    this.wallRotation.copy(wallRotation);\n\n    const wallNormal = new THREE.Vector3(0, 1, 0).applyQuaternion(wallRotation);\n\n    this._dragPlane.set(wallNormal, -wallNormal.dot(modelPosition));\n  }\n\n  public init({ view3d }: XRRenderContext) {\n    view3d.scene.add(this._arrowIndicator.object);\n  }\n\n  public destroy({ view3d }: XRContext) {\n    view3d.scene.remove(this._arrowIndicator.object);\n  }\n\n  /**\n   * Enable this control\n   */\n  public enable() {\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this control\n   */\n  public disable() {\n    this._enabled = false;\n    this.deactivate();\n  }\n\n  public activate({ model }: XRRenderContext, gesture: TOUCH.GESTURE) {\n    if (!this._enabled) return;\n\n    this._active = true;\n\n    // Update arrows\n    const arrowIndicator = this._arrowIndicator;\n    const modelBbox = model.initialBbox;\n    modelBbox.min.multiply(model.scene.scale);\n    modelBbox.max.multiply(model.scene.scale);\n    modelBbox.translate(model.scene.position);\n\n    arrowIndicator.show();\n    arrowIndicator.updatePosition(modelBbox.getCenter(new THREE.Vector3()));\n    arrowIndicator.updateScale(model.size / 16);\n\n    const arrowPlaneRotation = model.scene.quaternion.clone();\n\n    arrowIndicator.updateRotation(arrowPlaneRotation);\n    arrowIndicator.updateOffset(new THREE.Vector3().subVectors(modelBbox.max, modelBbox.min).multiplyScalar(0.5));\n  }\n\n  public deactivate() {\n    this._active = false;\n    this._arrowIndicator.hide();\n  }\n\n  public setInitialPos(coords: THREE.Vector2[]) {\n    this._initialPos.copy(coords[0]);\n  }\n\n  public process({ view3d, model, frame, referenceSpace, xrCam }: XRRenderContext, { hitResults }: XRInputs) {\n    if (!hitResults || hitResults.length !== 1 || !this._active) return;\n\n    const dragPlane = this._dragPlane;\n\n    const modelRoot = model.scene;\n    const modelZOffset = -model.initialBbox.min.z * modelRoot.scale.z;\n\n    const camPos = new THREE.Vector3().setFromMatrixPosition(xrCam.matrixWorld);\n    const hitResult = hitResults[0];\n    const hitPose = hitResult.results[0] && hitResult.results[0].getPose(referenceSpace);\n\n    const isWallHit = hitPose && hitPose.transform.matrix[5] < 0.25;\n\n    if (!hitPose || !isWallHit) {\n      // Use previous drag plane if no hit plane is found\n      const targetRayPose = frame.getPose(hitResult.inputSource.targetRaySpace, view3d.renderer.threeRenderer.xr.getReferenceSpace());\n      const fingerDir = new THREE.Vector3().copy(targetRayPose.transform.position).sub(camPos).normalize();\n\n      const fingerRay = new THREE.Ray(camPos, fingerDir);\n      const intersection = fingerRay.intersectPlane(dragPlane, new THREE.Vector3());\n\n      if (intersection) {\n        this.wallPosition.copy(intersection.clone().sub(dragPlane.normal.clone().multiplyScalar(modelZOffset)));\n        this.position.copy(intersection);\n      }\n      return;\n    }\n\n    const hitMatrix = new THREE.Matrix4().fromArray(hitPose.transform.matrix);\n    const hitOrientation = new THREE.Quaternion().copy(hitPose.transform.orientation);\n    const hitPosition = new THREE.Vector3().setFromMatrixPosition(hitMatrix);\n    const worldYAxis = new THREE.Vector3(0, 1, 0);\n    /*\n     * ^ wallU\n     * |\n     * ⨀---> wallV\n     * wallNormal\n     */\n    const wallNormal = new THREE.Vector3(0, 1, 0).applyQuaternion(hitOrientation).normalize();\n    const wallU = new THREE.Vector3().crossVectors(worldYAxis, wallNormal);\n    const wallV = wallNormal.clone().applyAxisAngle(wallU, -Math.PI / 2);\n\n    // Reconstruct wall matrix with prev Y(normal) direction as Z axis\n    const wallMatrix = new THREE.Matrix4().makeBasis(wallU, wallV, wallNormal);\n    const modelPosition = hitPosition.clone().add(wallNormal.clone().multiplyScalar(modelZOffset));\n\n    // Update position\n    this.position.copy(modelPosition);\n    this.wallPosition.copy(hitPosition);\n\n    // Update rotation if it differs more than 10deg\n    const prevWallNormal = new THREE.Vector3(0, 1, 0).applyQuaternion(this.hitRotation).normalize();\n    if (Math.acos(Math.abs(prevWallNormal.dot(wallNormal))) >= Math.PI / 18) {\n      const prevWallRotation = this.wallRotation.clone();\n      const wallRotation = new THREE.Quaternion().setFromRotationMatrix(wallMatrix);\n      const rotationDiff = prevWallRotation.inverse().premultiply(wallRotation);\n\n      modelRoot.quaternion.premultiply(rotationDiff);\n      this.wallRotation.copy(wallRotation);\n      this.hitRotation.copy(hitOrientation);\n\n      this._arrowIndicator.updateRotation(modelRoot.quaternion);\n\n      // Update drag plane\n      dragPlane.set(wallNormal, -modelPosition.dot(wallNormal));\n    }\n  }\n\n  public update({ model }: XRRenderContext, delta: number) {\n    model.scene.position.copy(this.position);\n    this._arrowIndicator.updatePosition(this.position);\n    model.scene.updateMatrix();\n  }\n}\n\nexport default ARWallTranslateControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport ARWallTranslateControl, { ARWallTranslateControlOption } from \"./ARWallTranslateControl\";\nimport ARScaleControl, { ARScaleControlOption } from \"../common/ARScaleControl\";\nimport DeadzoneChecker, { DeadzoneCheckerOption } from \"../common/DeadzoneChecker\";\nimport ARSwirlControl, { ARSwirlControlOption } from \"../common/ARSwirlControl\";\nimport FloorIndicator, { FloorIndicatorOption } from \"../ui/FloorIndicator\";\nimport * as XR from \"~/consts/xr\";\nimport * as TOUCH from \"~/consts/touch\";\nimport { XRRenderContext, XRContext, XRInputs } from \"~/types/internal\";\n\n/**\n * Options for the {@link ARWallControl}\n * @category Controls-AR\n * @interface\n * @property {ARSwirlControlOptions} rotate Options for {@link ARSwirlControl}\n * @property {ARTranslateControlOption} translate Options for {@link ARWallTranslateControl}\n * @property {ARScaleControlOption} scale Options for {@link ARScaleControl}\n * @property {FloorIndicatorOption} floorIndicator Options for {@link FloorIndicator}\n * @property {DeadzoneCheckerOption} deadzone Options for {@link DeadzoneChecker}\n */\nexport interface ARWallControlOption {\n  rotate: Partial<ARSwirlControlOption>;\n  translate: Partial<ARWallTranslateControlOption>;\n  scale: Partial<ARScaleControlOption>;\n  floorIndicator: Partial<FloorIndicatorOption>;\n  deadzone: Partial<DeadzoneCheckerOption>;\n}\n\n/**\n * AR control for {@link WallARSession}.\n * @category Controls-AR\n */\nclass ARWallControl {\n  private _enabled = true;\n  private _initialized = false;\n  private _modelHit = false;\n  private _hitTestSource: any = null;\n  private _deadzoneChecker: DeadzoneChecker;\n  private _rotateControl: ARSwirlControl;\n  private _translateControl: ARWallTranslateControl;\n  private _scaleControl: ARScaleControl;\n  private _floorIndicator: FloorIndicator;\n\n  /**\n   * Return whether this control is enabled or not\n   */\n  public get enabled() { return this._enabled; }\n  /**\n   * {@link ARSwirlControlOptions} in this control\n   */\n  public get rotate() { return this._rotateControl; }\n  /**\n   * {@link ARTranslateControl} in this control\n   */\n  public get translate() { return this._translateControl; }\n  /**\n   * {@link ARScaleControl} in this control\n   */\n  public get scale() { return this._scaleControl; }\n  public get controls() {\n    return [this._rotateControl, this._translateControl, this._scaleControl];\n  }\n\n  /**\n   * Create new instance of ARControl\n   * @param {ARWallControlOption} options Options\n   */\n  constructor(options: Partial<ARWallControlOption> = {}) {\n    // TODO: bind options\n    this._rotateControl = new ARSwirlControl({\n      ...options.rotate,\n      showIndicator: false,\n    });\n    this._translateControl = new ARWallTranslateControl(options.translate);\n    this._scaleControl = new ARScaleControl(options.scale);\n    this._floorIndicator = new FloorIndicator(options.floorIndicator);\n    this._deadzoneChecker = new DeadzoneChecker(options.deadzone);\n  }\n\n  public init(ctx: XRRenderContext, initialTransform: {\n    hitPosition: THREE.Vector3,\n    hitRotation: THREE.Quaternion,\n    wallRotation: THREE.Quaternion,\n    modelPosition: THREE.Vector3,\n  }) {\n    const { session, view3d, size } = ctx;\n\n    this.controls.forEach(control => control.init(ctx));\n    this._translateControl.initWallTransform(initialTransform);\n    this._deadzoneChecker.setAspect(size.height / size.width);\n\n    view3d.scene.add(this._floorIndicator.mesh);\n\n    this._initialized = true;\n\n    session.requestHitTestSourceForTransientInput({ profile: XR.INPUT_PROFILE.TOUCH })\n      .then((transientHitTestSource: any) => {\n        this._hitTestSource = transientHitTestSource;\n      });\n  }\n\n  /**\n   * Destroy this control and deactivate it\n   * @param view3d Instance of the {@link View3D}\n   */\n  public destroy(ctx: XRContext) {\n    if (!this._initialized) return;\n\n    if (this._hitTestSource) {\n      this._hitTestSource.cancel();\n      this._hitTestSource = null;\n    }\n\n    ctx.view3d.scene.remove(this._floorIndicator.mesh);\n\n    this.deactivate();\n    this.controls.forEach(control => control.destroy(ctx));\n\n    this._initialized = false;\n  }\n\n  public deactivate() {\n    this._modelHit = false;\n    this._deadzoneChecker.cleanup();\n    this.controls.forEach(control => control.deactivate());\n  }\n\n  /**\n   * Enable this control\n   */\n  public enable() {\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this control\n   */\n  public disable() {\n    this._enabled = false;\n    this.deactivate();\n  }\n\n  public update(ctx: XRRenderContext) {\n    const { view3d, session, frame } = ctx;\n    const hitTestSource = this._hitTestSource;\n\n    if (!hitTestSource || !view3d.model) return;\n\n    const deadzoneChecker = this._deadzoneChecker;\n    const inputSources = session.inputSources;\n    const hitResults = frame.getHitTestResultsForTransientInput(hitTestSource);\n    const coords = this._hitResultToVector(hitResults);\n    const xrInputs = {\n      coords,\n      inputSources,\n      hitResults,\n    };\n\n    if (deadzoneChecker.inDeadzone) {\n      this._checkDeadzone(ctx, xrInputs);\n    } else {\n      this._processInput(ctx, xrInputs);\n    }\n    this._updateControls(ctx);\n  }\n\n  public onSelectStart = (ctx: XRRenderContext) => {\n    const { view3d, session, frame, referenceSpace, xrCam } = ctx;\n    const hitTestSource = this._hitTestSource;\n\n    if (!hitTestSource || !this._enabled) return;\n\n    const deadzoneChecker = this._deadzoneChecker;\n    const rotateControl = this._rotateControl;\n    const translateControl = this._translateControl;\n    const scaleControl = this._scaleControl;\n\n    // Update deadzone testing gestures\n    if (rotateControl.enabled) {\n      deadzoneChecker.addTestingGestures(TOUCH.GESTURE.ONE_FINGER);\n    }\n    if (translateControl.enabled) {\n      deadzoneChecker.addTestingGestures(TOUCH.GESTURE.ONE_FINGER);\n    }\n    if (scaleControl.enabled) {\n      deadzoneChecker.addTestingGestures(TOUCH.GESTURE.PINCH);\n    }\n\n    const hitResults = frame.getHitTestResultsForTransientInput(hitTestSource);\n    const coords = this._hitResultToVector(hitResults);\n    deadzoneChecker.applyScreenAspect(coords);\n    deadzoneChecker.setFirstInput(coords);\n\n    if (coords.length === 1) {\n      // Check finger is on the model\n      const modelBbox = view3d.model!.bbox;\n\n      const targetRayPose = frame.getPose(session.inputSources[0].targetRaySpace, referenceSpace);\n      const camPos = new THREE.Vector3().setFromMatrixPosition(xrCam.matrixWorld);\n\n      const fingerDir = new THREE.Vector3().copy(targetRayPose.transform.position).sub(camPos).normalize();\n      const fingerRay = new THREE.Ray(camPos, fingerDir);\n      const intersection = fingerRay.intersectBox(modelBbox, new THREE.Vector3());\n\n      if (intersection) {\n        // Touch point intersected with model\n        this._modelHit = true;\n      }\n    }\n\n    this._floorIndicator.show();\n  }\n\n  public onSelectEnd = () => {\n    this.deactivate();\n    this._floorIndicator.fadeout();\n  }\n\n  private _checkDeadzone(ctx: XRRenderContext, { coords }: XRInputs) {\n    const { model } = ctx;\n    const gesture = this._deadzoneChecker.check(coords.map(coord => coord.clone()));\n    const rotateControl = this._rotateControl;\n    const translateControl = this._translateControl;\n    const scaleControl = this._scaleControl;\n\n    if (gesture === TOUCH.GESTURE.NONE) return;\n\n    switch (gesture) {\n      case TOUCH.GESTURE.ONE_FINGER_HORIZONTAL:\n      case TOUCH.GESTURE.ONE_FINGER_VERTICAL:\n        if (this._modelHit) {\n          translateControl.activate(ctx, gesture);\n          translateControl.setInitialPos(coords);\n        } else {\n          rotateControl.activate(ctx, gesture);\n          rotateControl.updateAxis(new THREE.Vector3(0, 1, 0).applyQuaternion(translateControl.hitRotation));\n          rotateControl.updateRotation(model.scene.quaternion);\n          rotateControl.setInitialPos(coords);\n        }\n        break;\n      case TOUCH.GESTURE.PINCH:\n        scaleControl.activate(ctx, gesture);\n        scaleControl.setInitialPos(coords);\n        break;\n    }\n  }\n\n  private _processInput(ctx: XRRenderContext, inputs: XRInputs) {\n    this.controls.forEach(control => control.process(ctx, inputs));\n  }\n\n  private _updateControls(ctx: XRRenderContext) {\n    const { view3d, model, delta } = ctx;\n    const deltaMilisec = delta * 1000;\n\n    this.controls.forEach(control => control.update(ctx, deltaMilisec));\n    model.scene.updateMatrix();\n\n    const translateControl = this._translateControl;\n    const floorPosition = translateControl.wallPosition;\n    view3d.scene.update(model, {\n      floorPosition,\n      floorRotation: translateControl.hitRotation,\n    });\n\n    // Get a scaled bbox, which only has scale applied on it.\n    const scaleControl = this._scaleControl;\n    const scaledBbox = model.initialBbox;\n    scaledBbox.min.multiply(scaleControl.scale);\n    scaledBbox.max.multiply(scaleControl.scale);\n\n    const floorIndicator = this._floorIndicator;\n    const boundingSphere = scaledBbox.getBoundingSphere(new THREE.Sphere());\n    const rotX90 = new THREE.Quaternion().setFromEuler(new THREE.Euler(Math.PI / 2, 0, 0));\n    const floorRotation = model.scene.quaternion.clone().multiply(rotX90);\n\n    floorIndicator.update({\n      delta: deltaMilisec,\n      scale: boundingSphere.radius,\n      position: floorPosition,\n      rotation: floorRotation,\n    });\n  }\n\n  private _hitResultToVector(hitResults: any[]) {\n    return hitResults.map(input => {\n      return new THREE.Vector2().set(\n        input.inputSource.gamepad.axes[0],\n        -input.inputSource.gamepad.axes[1],\n      );\n    });\n  }\n}\n\nexport default ARWallControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport WebARSession, { WebARSessionOption } from \"./WebARSession\";\nimport HitTest from \"./features/HitTest\";\nimport ARWallControl, { ARWallControlOption } from \"~/controls/ar/wall/ARWallControl\";\nimport Animation from \"~/core/Animation\";\nimport { merge } from \"~/utils\";\nimport * as XR from \"~/consts/xr\";\nimport { XRRenderContext, XRContext } from \"~/types/internal\";\n\n/**\n * Options for {@link WallARSession}.\n * This type is intersection of {@link WebARSessionOption} and {@link ARWallControlOption}\n * @category XR\n * @interface\n * @extends WebARSessionOption\n * @extends ARWallControlOption\n */\ninterface WallARSessionOption extends WebARSessionOption, ARWallControlOption {}\n\n/**\n * AR session which places model on the wall\n * @category XR\n * @fires WebARSession#start\n * @fires WebARSession#end\n * @fires WebARSession#canPlace\n * @fires WebARSession#modelPlaced\n */\nclass WallARSession extends WebARSession {\n  private _options: Partial<WallARSessionOption>;\n  private _control: ARWallControl | null;\n  private _renderContext: XRRenderContext | null;\n  private _modelPlaced: boolean;\n  private _hitTest: HitTest;\n\n  /**\n   * {@link ARWallControl} instance of this session\n   * @type ARWallControl | null\n   */\n  public get control() { return this._control; }\n\n  /**\n   * Create new instance of WallARSession\n   * @param {WallARSessionOption} [options={}] Options\n   */\n  constructor(options: Partial<WallARSessionOption> = {}) {\n    super(options);\n\n    this._control = null;\n    this._renderContext = null;\n    this._modelPlaced = false;\n\n    this._hitTest = new HitTest();\n\n    this._features = merge(this._features, this._hitTest.features);\n    this._options = options;\n  }\n\n  public onStart = (ctx: XRContext) => {\n    const { view3d, session } = ctx;\n\n    super.onStart(ctx);\n\n    this._control = new ARWallControl(this._options);\n\n    view3d.scene.hide();\n    this._hitTest.init(session);\n  }\n\n  public onEnd = (ctx: XRContext) => {\n    const { view3d, session } = ctx;\n\n    super.onEnd(ctx);\n\n    this._renderContext = null;\n    this._modelPlaced = false;\n\n    session.removeEventListener(XR.EVENTS.SELECT_START, this._onSelectStart);\n    session.removeEventListener(XR.EVENTS.SELECT_END, this._onSelectEnd);\n\n    this._hitTest.destroy();\n    this._control!.destroy(ctx);\n    this._control = null;\n\n    view3d.scene.show();\n  }\n\n  protected _beforeRender = (ctx: XRRenderContext) => {\n    this._renderContext = ctx;\n    if (!this._modelPlaced) {\n      this._initModelPosition(ctx);\n    } else {\n      this._control!.update(ctx);\n    }\n  }\n\n  private _initModelPosition(ctx: XRRenderContext) {\n    const {view3d, frame, session} = ctx;\n    const model = view3d.model;\n    const hitTest = this._hitTest;\n\n    // Make sure the model is loaded\n    if (!hitTest.ready || !model) return;\n\n    const control = this._control!;\n    const referenceSpace = view3d.renderer.threeRenderer.xr.getReferenceSpace();\n    const hitTestResults = hitTest.getResults(frame);\n\n    if (hitTestResults.length <= 0) return;\n\n    const hit = hitTestResults[0];\n    const hitPose = hit.getPose(referenceSpace);\n    const hitMatrix = new THREE.Matrix4().fromArray(hitPose.transform.matrix);\n\n    // If transformed coord space's y axis is facing up or down, don't use it.\n    if (hitMatrix.elements[5] >= 0.25 || hitMatrix.elements[5] <= -0.25) return;\n\n    const modelRoot = model.scene;\n    const hitRotation = new THREE.Quaternion().copy(hitPose.transform.orientation);\n    const hitPosition = new THREE.Vector3().setFromMatrixPosition(hitMatrix);\n    const modelZOffset = -model.initialBbox.min.z * modelRoot.scale.z;\n    const modelPosition = hitPosition.clone().setZ(hitPosition.z + modelZOffset);\n\n    const worldYAxis = new THREE.Vector3(0, 1, 0);\n    /*\n     * ^ wallU\n     * |\n     * ⨀---> wallV\n     * wallNormal\n     */\n    const wallNormal = new THREE.Vector3(0, 1, 0).applyQuaternion(hitRotation).normalize();\n    const wallU = new THREE.Vector3().crossVectors(worldYAxis, wallNormal);\n    const wallV = wallNormal.clone().applyAxisAngle(wallU, -Math.PI / 2);\n\n    // Reconstruct wall matrix with prev Y(normal) direction as Z axis\n    const wallMatrix = new THREE.Matrix4().makeBasis(wallU, wallV, wallNormal);\n    const wallRotation = new THREE.Quaternion().setFromRotationMatrix(wallMatrix);\n    const modelRotation = model.scene.quaternion.clone()\n      .premultiply(wallRotation);\n\n    // Update rotation & position\n    modelRoot.quaternion.copy(modelRotation);\n    modelRoot.position.copy(modelPosition);\n    modelRoot.updateMatrix();\n\n    view3d.scene.update(model);\n    view3d.scene.show();\n\n    // Don't need it\n    hitTest.destroy();\n\n    session.addEventListener(XR.EVENTS.SELECT_START, this._onSelectStart);\n    session.addEventListener(XR.EVENTS.SELECT_END, this._onSelectEnd);\n\n    this._domOverlay?.hideLoading();\n    this._modelPlaced = true;\n\n    // Show scale up animation\n    const originalModelScale = model.scene.scale.clone();\n    const scaleUpAnimation = new Animation({ context: session });\n\n    scaleUpAnimation.on(\"progress\", evt => {\n      const newScale = originalModelScale.clone().multiplyScalar(evt.easedProgress);\n      model.scene.scale.copy(newScale);\n    });\n    scaleUpAnimation.on(\"finish\", () => {\n      model.scene.scale.copy(originalModelScale);\n      control.init(ctx, {\n        hitPosition,\n        hitRotation,\n        wallRotation,\n        modelPosition,\n      });\n    });\n    scaleUpAnimation.start();\n  }\n\n  private _onSelectStart = (e) => {\n    this._control!.onSelectStart({\n      ...this._renderContext!,\n      frame: e.frame,\n    });\n  }\n\n  private _onSelectEnd = () => {\n    this._control!.onSelectEnd();\n  }\n}\n\nexport default WallARSession;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport ARControl from \"./ARControl\";\nimport Motion from \"~/controls/Motion\";\nimport RotationIndicator from \"../ui/RotationIndicator\";\nimport * as DEFAULT from \"~/consts/default\";\nimport { XRRenderContext, XRContext, XRInputs } from \"~/types/internal\";\nimport * as TOUCH from \"~/consts/touch\";\n\nenum STATE {\n  WAITING,\n  ROTATE_HORIZONTAL,\n  ROTATE_VERTICAL,\n}\n\n/**\n * Options for {@link ARSwipeControl}\n * @category Controls-AR\n * @interface\n * @property {number} [scale=1] Scale(speed) factor of the rotation\n */\nexport interface ARSwipeControlOption {\n  scale: number;\n}\n\n/**\n * Two finger swipe control\n * @category Controls-AR\n */\nclass ARSwipeControl implements ARControl {\n  /**\n   * Current rotation value\n   */\n  public readonly rotation = new THREE.Quaternion();\n\n  // Options\n  private _userScale: number;\n\n  // Internal States\n  private _state = STATE.WAITING;\n  private _enabled = true;\n  private _active = false;\n\n  private _prevPos = new THREE.Vector2();\n  private _fromQuat = new THREE.Quaternion();\n  private _toQuat = new THREE.Quaternion();\n\n  private _horizontalAxis = new THREE.Vector3();\n  private _verticalAxis = new THREE.Vector3();\n\n  private _motion: Motion;\n  private _rotationIndicator: RotationIndicator;\n\n  /**\n   * Whether this control is enabled or not.\n   * @readonly\n   */\n  public get enabled() { return this._enabled; }\n  /**\n   * Scale(speed) factor of this control.\n   */\n  public get scale() { return this._userScale; }\n  public get horizontalAxis() { return this._horizontalAxis; }\n  public get verticalAxis() { return this._verticalAxis; }\n\n  public set scale(val: number) { this._userScale = val; }\n\n  /**\n   * Create new ARSwipeControl\n   * @param {ARSwipeControlOption} [options={}] Options\n   */\n  constructor({\n    scale = 1,\n  }: Partial<{\n    scale: number,\n  }> = {}) {\n    this._motion = new Motion({ range: DEFAULT.INFINITE_RANGE });\n    this._rotationIndicator = new RotationIndicator();\n    this._userScale = scale;\n  }\n\n  public init({ view3d }: XRRenderContext) {\n    const initialRotation = view3d.model!.scene.quaternion;\n    this.updateRotation(initialRotation);\n    view3d.scene.add(this._rotationIndicator.object);\n  }\n\n  public destroy({ view3d }: XRContext) {\n    view3d.scene.remove(this._rotationIndicator.object);\n  }\n\n  public updateRotation(rotation: THREE.Quaternion) {\n    this.rotation.copy(rotation);\n    this._fromQuat.copy(rotation);\n    this._toQuat.copy(rotation);\n  }\n\n  /**\n   * Enable this control\n   */\n  public enable() {\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this control\n   */\n  public disable() {\n    this._enabled = false;\n  }\n\n  public updateAxis(horizontal: THREE.Vector3, vertical: THREE.Vector3) {\n    this._horizontalAxis.copy(horizontal);\n    this._verticalAxis.copy(vertical);\n  }\n\n  public activate({ view3d }: XRRenderContext, gesture: TOUCH.GESTURE) {\n    if (!this._enabled) return;\n\n    const model = view3d.model!;\n    const rotationIndicator = this._rotationIndicator;\n\n    this._active = true;\n    rotationIndicator.show();\n    rotationIndicator.updatePosition(model.bbox.getCenter(new THREE.Vector3()));\n    rotationIndicator.updateScale(model.size / 2);\n\n    if (gesture === TOUCH.GESTURE.TWO_FINGER_HORIZONTAL) {\n      rotationIndicator.updateRotation(\n        model.scene.quaternion.clone()\n          .multiply(new THREE.Quaternion().setFromEuler(new THREE.Euler(-Math.PI / 2, 0, 0))),\n      );\n      this._state = STATE.ROTATE_HORIZONTAL;\n    } else if (gesture === TOUCH.GESTURE.TWO_FINGER_VERTICAL) {\n      rotationIndicator.updateRotation(\n        model.scene.quaternion.clone()\n          .multiply(new THREE.Quaternion().setFromEuler(new THREE.Euler(0, Math.PI / 2, 0))),\n      );\n      this._state = STATE.ROTATE_VERTICAL;\n    }\n  }\n\n  public deactivate() {\n    this._active = false;\n    this._rotationIndicator.hide();\n    this._state = STATE.WAITING;\n  }\n\n  public setInitialPos(coords: THREE.Vector2[]) {\n    if (coords.length < 2) return;\n    this._prevPos.set(\n      (coords[0].x + coords[1].x) / 2,\n      (coords[0].y + coords[1].y) / 2,\n    );\n  }\n\n  public process(ctx: XRRenderContext, { coords }: XRInputs) {\n    if (!this._active || coords.length !== 2) return;\n\n    const state = this._state;\n    const prevPos = this._prevPos;\n    const motion = this._motion;\n    const scale = this._userScale;\n\n    const middlePos = new THREE.Vector2(\n      (coords[0].x + coords[1].x) / 2,\n      (coords[0].y + coords[1].y) / 2,\n    );\n    const posDiff = new THREE.Vector2().subVectors(prevPos, middlePos);\n\n    const rotationAxis = state === STATE.ROTATE_HORIZONTAL\n      ? this._horizontalAxis\n      : this._verticalAxis;\n    const rotationAngle = state === STATE.ROTATE_HORIZONTAL\n      ? posDiff.x * scale\n      : -posDiff.y * scale;\n\n    const rotation = new THREE.Quaternion().setFromAxisAngle(rotationAxis, rotationAngle);\n    const interpolated = this._getInterpolatedQuaternion();\n\n    this._fromQuat.copy(interpolated);\n    this._toQuat.premultiply(rotation);\n\n    motion.reset(0);\n    motion.setEndDelta(1);\n\n    prevPos.copy(middlePos);\n  }\n\n  public update({ model }: XRRenderContext, deltaTime: number) {\n    const motion = this._motion;\n    motion.update(deltaTime);\n\n    const interpolated = this._getInterpolatedQuaternion();\n\n    this.rotation.copy(interpolated);\n    model.scene.quaternion.copy(this.rotation);\n  }\n\n  private _getInterpolatedQuaternion(): THREE.Quaternion {\n    const motion = this._motion;\n    const toEuler = this._toQuat;\n    const fromEuler = this._fromQuat;\n\n    const progress = motion.val;\n\n    return new THREE.Quaternion().copy(fromEuler).slerp(toEuler, progress);\n  }\n}\n\nexport default ARSwipeControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport ARSwirlControl, { ARSwirlControlOption } from \"../common/ARSwirlControl\";\nimport ARSwipeControl, { ARSwipeControlOption } from \"../common/ARSwipeControl\";\nimport { XRRenderContext, XRContext, XRInputs } from \"~/types/internal\";\nimport * as TOUCH from \"~/consts/touch\";\nimport ARControl from \"../common/ARControl\";\n\n/**\n * Options for {@link ARHoverRotateControl}\n * @category Controls-AR\n * @interface\n * @property {ARSwirlControlOption} swirl Options for {@link ARSwirlControl}\n * @property {ARSwipeControlOption} swipe Options for {@link ARSwipeControl}\n */\nexport interface ARHoverRotateControlOption {\n  swirl: Partial<ARSwirlControlOption>;\n  swipe: Partial<ARSwipeControlOption>;\n}\n\n/**\n * Model's yaw(local y-axis rotation) controller which works on AR(WebXR) mode.\n * @category Controls-AR\n */\nclass ARHoverRotateControl implements ARControl {\n  /**\n   * Current rotation value\n   */\n  public readonly rotation = new THREE.Quaternion();\n\n  // Internal States\n  private _zRotationControl: ARSwirlControl;\n  private _xyRotationControl: ARSwipeControl;\n  private _activatedControl: ARSwirlControl | ARSwipeControl | null;\n\n  /**\n   * Whether this control is enabled or not.\n   * This returns true when either one finger control or two finger control is enabled.\n   * @readonly\n   */\n  public get enabled() { return this._zRotationControl.enabled || this._xyRotationControl.enabled; }\n\n  /**\n   * {@link ARSwirlControl} of this control.\n   */\n  public get swirl() { return this._zRotationControl; }\n  /**\n   * {@link ARSwipeControl} of this control.\n   */\n  public get swipe() { return this._xyRotationControl; }\n\n  /**\n   * Create new instance of ARRotateControl\n   * @param {ARHoverRotateControlOption} options Options\n   */\n  constructor(options: Partial<ARHoverRotateControlOption> = {}) {\n    this._zRotationControl = new ARSwirlControl(options.swirl);\n    this._xyRotationControl = new ARSwipeControl(options.swipe);\n    this._activatedControl = null;\n  }\n\n  public init(ctx: XRRenderContext) {\n    const initialRotation = ctx.view3d.model!.scene.quaternion;\n\n    this.rotation.copy(initialRotation);\n    this._zRotationControl.init(ctx);\n    this._xyRotationControl.init(ctx);\n  }\n\n  public destroy(ctx: XRContext) {\n    this._zRotationControl.destroy(ctx);\n    this._xyRotationControl.destroy(ctx);\n  }\n\n  /**\n   * Enable this control\n   */\n  public enable() {\n    this._zRotationControl.enable();\n    this._xyRotationControl.enable();\n  }\n\n  /**\n   * Disable this control\n   */\n  public disable() {\n    this._zRotationControl.disable();\n    this._xyRotationControl.disable();\n  }\n\n  public activate(ctx: XRRenderContext, gesture: TOUCH.GESTURE) {\n    const zRotationControl = this._zRotationControl;\n    const xyRotationControl = this._xyRotationControl;\n\n    if (gesture & TOUCH.GESTURE.ONE_FINGER) {\n      zRotationControl.activate(ctx, gesture);\n      zRotationControl.updateRotation(this.rotation);\n      this._activatedControl = zRotationControl;\n    } else if (gesture & TOUCH.GESTURE.TWO_FINGER) {\n      xyRotationControl.activate(ctx, gesture);\n      xyRotationControl.updateRotation(this.rotation);\n      this._activatedControl = xyRotationControl;\n    }\n  }\n\n  public deactivate() {\n    this._zRotationControl.deactivate();\n    this._xyRotationControl.deactivate();\n  }\n\n  public process(ctx: XRRenderContext, inputs: XRInputs) {\n    this._zRotationControl.process(ctx, inputs);\n    this._xyRotationControl.process(ctx, inputs);\n  }\n\n  public setInitialPos(coords: THREE.Vector2[]) {\n    this._zRotationControl.setInitialPos(coords);\n    this._xyRotationControl.setInitialPos(coords);\n  }\n\n  public update(ctx: XRRenderContext, deltaTime: number) {\n    if (this._activatedControl) {\n      this._activatedControl.update(ctx, deltaTime);\n      this.rotation.copy(this._activatedControl.rotation);\n    }\n  }\n\n  public updateRotateAxis({ view3d, xrCam }: XRRenderContext) {\n    const model = view3d.model!;\n    const zRotateAxis = new THREE.Vector3();\n    const horizontalRotateAxis = new THREE.Vector3();\n    const verticalRotateAxis = new THREE.Vector3();\n\n    const cameraRotation = new THREE.Quaternion().setFromRotationMatrix(xrCam.matrixWorld);\n\n    const cameraBasis = [\n      new THREE.Vector3(1, 0, 0),\n      new THREE.Vector3(0, 1, 0),\n      new THREE.Vector3(0, 0, 1),\n    ].map(axis => axis.applyQuaternion(cameraRotation).normalize());\n\n    const modelBasis = [\n      new THREE.Vector3(1, 0, 0),\n      new THREE.Vector3(0, 1, 0),\n      new THREE.Vector3(0, 0, 1),\n    ].map(axis => axis.applyQuaternion(model.scene.quaternion));\n\n    // Always use z-rotation\n    zRotateAxis.copy(modelBasis[2]);\n    // Use more appropriate one between x/y axis\n    horizontalRotateAxis.copy(modelBasis[1]);\n    verticalRotateAxis.copy(modelBasis[0]);\n\n    // If it's facing other direction, negate it to face correct direction\n    if (zRotateAxis.dot(cameraBasis[2]) < 0) {\n      zRotateAxis.negate();\n    }\n    if (horizontalRotateAxis.dot(cameraBasis[1]) > 0) {\n      horizontalRotateAxis.negate();\n    }\n    if (verticalRotateAxis.dot(cameraBasis[0]) > 0) {\n      verticalRotateAxis.negate();\n    }\n\n    this._zRotationControl.updateAxis(zRotateAxis);\n    this._xyRotationControl.updateAxis(horizontalRotateAxis, verticalRotateAxis);\n  }\n}\n\nexport default ARHoverRotateControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport ARControl from \"../common/ARControl\";\nimport ArrowIndicator, { ArrowIndicatorOption } from \"../ui/ArrowIndicator\";\nimport { getPrimaryAxisIndex } from \"~/utils\";\nimport * as TOUCH from \"~/consts/touch\";\nimport { XRRenderContext, XRContext, XRInputs } from \"~/types/internal\";\n\n/**\n * Options for {@link ARHoverTranslateControl}\n * @category Controls-AR\n * @interface\n * @property {ArrowIndicatorOption} arrow Options for {@link ArrowIndicator}\n */\nexport interface ARHoverTranslateControlOption {\n  arrow: ArrowIndicatorOption;\n}\n\n/**\n * Model's translation(position) control for {@link ARHoverControl}\n * @category Controls-AR\n */\nclass ARHoverTranslateControl implements ARControl {\n  // Internal states\n  private _position = new THREE.Vector3();\n  private _dragPlane = new THREE.Plane();\n  private _enabled = true;\n  private _active = false;\n  private _initialPos = new THREE.Vector2();\n  private _arrowIndicator: ArrowIndicator;\n\n  public get enabled() { return this._enabled; }\n  public get position() { return this._position.clone(); }\n\n  /**\n   * Create new instance of ARTranslateControl\n   * @param {ARHoverTranslateControlOption} [options={}] Options\n   */\n  constructor(options: Partial<ARHoverTranslateControlOption> = {}) {\n    this._arrowIndicator = new ArrowIndicator(options.arrow);\n  }\n\n  public init({ view3d }: XRRenderContext) {\n    this._position.copy(view3d.model!.scene.position);\n    view3d.scene.add(this._arrowIndicator.object);\n  }\n\n  public destroy({ view3d }: XRContext) {\n    view3d.scene.remove(this._arrowIndicator.object);\n  }\n\n  /**\n   * Enable this control\n   */\n  public enable() {\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this control\n   */\n  public disable() {\n    this._enabled = false;\n    this.deactivate();\n  }\n\n  public activate({ model, xrCam }: XRRenderContext, gesture: TOUCH.GESTURE) {\n    if (!this._enabled) return;\n\n    const modelPos = model.scene.position;\n    const camPos = new THREE.Vector3().setFromMatrixPosition(xrCam.matrixWorld);\n\n    const modelBasis = [new THREE.Vector3(), new THREE.Vector3(), new THREE.Vector3()];\n    model.scene.matrixWorld.extractBasis(modelBasis[0], modelBasis[1], modelBasis[2]);\n    modelBasis.forEach(axes => axes.normalize());\n\n    const camToModelDir = new THREE.Vector3().subVectors(modelPos, camPos).clone().normalize();\n    const primaryAxisIdx = getPrimaryAxisIndex(modelBasis, camToModelDir);\n    const primaryAxis = modelBasis[primaryAxisIdx];\n\n    // If axes is facing the opposite of camera, negate it\n    if (primaryAxis.dot(camToModelDir) < 0) {\n      primaryAxis.negate();\n    }\n\n    const originToDragPlane = new THREE.Plane(primaryAxis, 0).distanceToPoint(modelPos);\n    this._dragPlane.set(primaryAxis, -originToDragPlane);\n\n    this._active = true;\n\n    // Update arrows\n    const arrowIndicator = this._arrowIndicator;\n    const modelBbox = model.initialBbox;\n    modelBbox.min.multiply(model.scene.scale);\n    modelBbox.max.multiply(model.scene.scale);\n    modelBbox.translate(modelPos);\n\n    arrowIndicator.show();\n    arrowIndicator.updatePosition(modelBbox.getCenter(new THREE.Vector3()));\n    arrowIndicator.updateScale(model.size / 16);\n\n    const arrowPlaneRotation = model.scene.quaternion.clone();\n    if (primaryAxisIdx === 0) {\n      arrowPlaneRotation.multiply(new THREE.Quaternion().setFromEuler(new THREE.Euler(0, Math.PI / 2, 0)));\n    } else if (primaryAxisIdx === 1) {\n      arrowPlaneRotation.multiply(new THREE.Quaternion().setFromEuler(new THREE.Euler(Math.PI / 2, 0, 0)));\n    }\n\n    arrowIndicator.updateRotation(arrowPlaneRotation);\n    arrowIndicator.updateOffset(new THREE.Vector3().subVectors(modelBbox.max, modelBbox.min).multiplyScalar(0.5));\n  }\n\n  public deactivate() {\n    this._active = false;\n    this._arrowIndicator.hide();\n  }\n\n  public setInitialPos(coords: THREE.Vector2[]) {\n    this._initialPos.copy(coords[0]);\n  }\n\n  public process({ view3d, frame, referenceSpace, xrCam }: XRRenderContext, { inputSources }: XRInputs) {\n    if (inputSources.length !== 1 || !this._active) return;\n\n    const inputSource = inputSources[0];\n    const dragPlane = this._dragPlane;\n\n    const targetRayPose = frame.getPose(inputSource.targetRaySpace, referenceSpace);\n    const camPos = new THREE.Vector3().setFromMatrixPosition(xrCam.matrixWorld);\n\n    const fingerDir = new THREE.Vector3().copy(targetRayPose.transform.position).sub(camPos).normalize();\n    const fingerRay = new THREE.Ray(camPos, fingerDir);\n    const intersection = fingerRay.intersectPlane(dragPlane, new THREE.Vector3());\n\n    if (intersection) {\n      this._position.copy(intersection);\n\n      // Update arrow position. As position is not a center of model, we should apply offset from it\n      const model = view3d.model!;\n      const centerYOffset = model.initialBbox.getCenter(new THREE.Vector3()).multiply(model.scene.scale).y;\n      const modelLocalYDir = new THREE.Vector3().applyQuaternion(model.scene.quaternion);\n      const newCenter = intersection.add(modelLocalYDir.multiplyScalar(centerYOffset));\n\n      this._arrowIndicator.updatePosition(newCenter);\n    }\n  }\n\n  public update({ model }: XRRenderContext, delta: number) {\n    model.scene.position.copy(this._position);\n  }\n}\n\nexport default ARHoverTranslateControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport ARHoverRotateControl, { ARHoverRotateControlOption } from \"./ARHoverRotateControl\";\nimport ARHoverTranslateControl, { ARHoverTranslateControlOption } from \"./ARHoverTranslateControl\";\nimport ARScaleControl, { ARScaleControlOption } from \"../common/ARScaleControl\";\nimport DeadzoneChecker from \"../common/DeadzoneChecker\";\nimport * as TOUCH from \"~/consts/touch\";\nimport { XRRenderContext, XRContext } from \"~/types/internal\";\n\n/**\n * Options for the {@link ARHoverControl}\n * @category Controls-AR\n * @interface\n * @property {ARHoverRotateControlOption} rotate Options for {@link ARHoverRotateControl}\n * @property {ARHoverTranslateControlOption} translate Options for {@link ARHoverTranslateControl}\n * @property {ARScaleControlOption} scale Options for {@link ARScaleControl}\n * @property {DeadzoneCheckerOption} deadzone Options for {@link DeadzoneChecker}\n */\nexport interface ARHoverControlOption {\n  rotate: Partial<ARHoverRotateControlOption>;\n  translate: Partial<ARHoverTranslateControlOption>;\n  scale: Partial<ARScaleControlOption>;\n}\n\n/**\n * AR control for {@link HoverARSession}\n * @category Controls-AR\n */\nclass ARHoverControl {\n  private _enabled = true;\n  private _initialized = false;\n  private _modelHit = false;\n  private _deadzoneChecker: DeadzoneChecker;\n  private _rotateControl: ARHoverRotateControl;\n  private _translateControl: ARHoverTranslateControl;\n  private _scaleControl: ARScaleControl;\n\n  /**\n   * Return whether this control is enabled or not\n   */\n  public get enabled() { return this._enabled; }\n  /**\n   * {@link ARHoverRotateControlOption} in this control\n   */\n  public get rotate() { return this._rotateControl; }\n  /**\n   * {@link ARHoverTranslateControlOption} in this control\n   */\n  public get translate() { return this._translateControl; }\n  /**\n   * {@link ARScaleControl} in this control\n   */\n  public get scale() { return this._scaleControl; }\n  public get controls() {\n    return [this._rotateControl, this._translateControl, this._scaleControl];\n  }\n\n  /**\n   * Create new instance of ARHoverControl\n   * @param {ARHoverControlOption} options Options\n   */\n  constructor(options: Partial<ARHoverControlOption> = {}) {\n    this._rotateControl = new ARHoverRotateControl(options.rotate);\n    this._translateControl = new ARHoverTranslateControl(options.translate);\n    this._scaleControl = new ARScaleControl(options.scale);\n    this._deadzoneChecker = new DeadzoneChecker();\n  }\n\n  public init(ctx: XRRenderContext) {\n    const { size } = ctx;\n\n    this.controls.forEach(control => control.init(ctx));\n    this._deadzoneChecker.setAspect(size.height / size.width);\n\n    this._initialized = true;\n  }\n\n  /**\n   * Destroy this control and deactivate it\n   * @param view3d Instance of the {@link View3D}\n   */\n  public destroy(ctx: XRContext) {\n    if (!this._initialized) return;\n\n    this.deactivate();\n    this.controls.forEach(control => control.destroy(ctx));\n\n    this._initialized = false;\n  }\n\n  public deactivate() {\n    this._modelHit = false;\n    this._deadzoneChecker.cleanup();\n    this.controls.forEach(control => control.deactivate());\n  }\n\n  /**\n   * Enable this control\n   */\n  public enable() {\n    this._enabled = true;\n  }\n\n  /**\n   * Disable this control\n   */\n  public disable() {\n    this._enabled = false;\n    this.deactivate();\n  }\n\n  public update(ctx: XRRenderContext) {\n    const { session } = ctx;\n\n    if (!this._initialized) return;\n\n    const deadzoneChecker = this._deadzoneChecker;\n    const inputSources = session.inputSources;\n\n    if (deadzoneChecker.inDeadzone) {\n      this._checkDeadzone(ctx, inputSources);\n    } else {\n      this._processInput(ctx, inputSources);\n    }\n    this._updateControls(ctx);\n  }\n\n  public onSelectStart = (ctx: XRRenderContext) => {\n    const { view3d, session, frame, referenceSpace, xrCam } = ctx;\n    if (!this._enabled) return;\n\n    const deadzoneChecker = this._deadzoneChecker;\n    const rotateControl = this._rotateControl;\n    const translateControl = this._translateControl;\n    const scaleControl = this._scaleControl;\n\n    // Update rotation axis\n    if (rotateControl.enabled) {\n      rotateControl.updateRotateAxis(ctx);\n    }\n\n    // Update deadzone testing gestures\n    if (rotateControl.swirl.enabled) {\n      deadzoneChecker.addTestingGestures(TOUCH.GESTURE.ONE_FINGER);\n    }\n    if (rotateControl.swipe.enabled) {\n      deadzoneChecker.addTestingGestures(TOUCH.GESTURE.TWO_FINGER);\n    }\n    if (translateControl.enabled) {\n      deadzoneChecker.addTestingGestures(TOUCH.GESTURE.ONE_FINGER);\n    }\n    if (scaleControl.enabled) {\n      deadzoneChecker.addTestingGestures(TOUCH.GESTURE.PINCH);\n    }\n\n    const coords = this._inputSourceToVector(session.inputSources);\n    deadzoneChecker.applyScreenAspect(coords);\n    deadzoneChecker.setFirstInput(coords);\n\n    if (coords.length === 1) {\n      // Check finger is on the model\n      const modelBbox = view3d.model!.bbox;\n\n      const targetRayPose = frame.getPose(session.inputSources[0].targetRaySpace, referenceSpace);\n      const camPos = new THREE.Vector3().setFromMatrixPosition(xrCam.matrixWorld);\n\n      const fingerDir = new THREE.Vector3().copy(targetRayPose.transform.position).sub(camPos).normalize();\n      const fingerRay = new THREE.Ray(camPos, fingerDir);\n      const intersection = fingerRay.intersectBox(modelBbox, new THREE.Vector3());\n\n      if (intersection) {\n        // Touch point intersected with model\n        this._modelHit = true;\n      }\n    }\n  }\n\n  public onSelectEnd = () => {\n    this.deactivate();\n  }\n\n  private _checkDeadzone(ctx: XRRenderContext, inputSources: any[]) {\n    const coords = this._inputSourceToVector(inputSources);\n    const gesture = this._deadzoneChecker.check(coords.map(coord => coord.clone()));\n    const rotateControl = this._rotateControl;\n    const translateControl = this._translateControl;\n    const scaleControl = this._scaleControl;\n\n    if (gesture === TOUCH.GESTURE.NONE) return;\n\n    switch (gesture) {\n      case TOUCH.GESTURE.ONE_FINGER_HORIZONTAL:\n      case TOUCH.GESTURE.ONE_FINGER_VERTICAL:\n        if (this._modelHit) {\n          translateControl.activate(ctx, gesture);\n          translateControl.setInitialPos(coords);\n        } else {\n          rotateControl.activate(ctx, gesture);\n          rotateControl.setInitialPos(coords);\n        }\n        break;\n      case TOUCH.GESTURE.TWO_FINGER_HORIZONTAL:\n      case TOUCH.GESTURE.TWO_FINGER_VERTICAL:\n        rotateControl.activate(ctx, gesture);\n        rotateControl.setInitialPos(coords);\n        break;\n      case TOUCH.GESTURE.PINCH:\n        scaleControl.activate(ctx, gesture);\n        scaleControl.setInitialPos(coords);\n        break;\n    }\n  }\n\n  private _processInput(ctx: XRRenderContext, inputSources: any[]) {\n    const coords = this._inputSourceToVector(inputSources);\n\n    this.controls.forEach(control => control.process(ctx, { coords, inputSources }));\n  }\n\n  private _updateControls(ctx: XRRenderContext) {\n    const { view3d, model, delta } = ctx;\n    const deltaMilisec = delta * 1000;\n\n    this.controls.forEach(control => control.update(ctx, deltaMilisec));\n\n    model.scene.updateMatrix();\n    view3d.scene.update(model);\n  }\n\n  private _inputSourceToVector(inputSources: any[]) {\n    return Array.from(inputSources).map(inputSource => {\n      const axes = inputSource.gamepad.axes;\n      return new THREE.Vector2(axes[0], -axes[1]);\n    });\n  }\n}\n\nexport default ARHoverControl;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport WebARSession, { WebARSessionOption } from \"./WebARSession\";\nimport ARHoverControl, { ARHoverControlOption } from \"~/controls/ar/hover/ARHoverControl\";\nimport Animation from \"~/core/Animation\";\nimport * as XR from \"~/consts/xr\";\nimport { XRRenderContext, XRContext } from \"~/types/internal\";\nimport { clamp } from \"~/utils\";\n\n/**\n * Options for {@link HoverARSession}.\n * This type is intersection of {@link WebARSessionOption} and {@link ARHoverControlOption}\n * @category XR\n * @interface\n * @extends WebARSessionOption\n * @extends ARHoverControlOption\n */\ninterface HoverARSessionOption extends WebARSessionOption, ARHoverControlOption {\n  initialDistance: number;\n}\n\n/**\n * WebXR based AR session which puts model at the space front of camera.\n * @category XR\n * @fires WebARSession#start\n * @fires WebARSession#end\n * @fires WebARSession#canPlace\n * @fires WebARSession#modelPlaced\n */\nclass HoverARSession extends WebARSession {\n  private _options: Partial<HoverARSessionOption>;\n  private _control: ARHoverControl | null;\n  private _renderContext: XRRenderContext | null;\n  private _modelPlaced: boolean;\n\n  /**\n   * {@link ARControl} instance of this session\n   * @type ARHoverControl | null\n   */\n  public get control() { return this._control; }\n\n  /**\n   * Create new instance of HoverARSession\n   * @param {HoverARSessionOption} options Options\n   */\n  constructor(options: Partial<HoverARSessionOption> = {}) {\n    super(options);\n\n    this._control = null;\n    this._renderContext = null;\n    this._modelPlaced = false;\n    this._options = options;\n  }\n\n  /**\n   * Place model on the current position\n   */\n  public placeModel() {\n    const ctx = this._renderContext;\n\n    // Not ready to place model yet\n    if (!ctx || !ctx.view3d.scene.visible || this._modelPlaced) return;\n\n    const { session, view3d } = ctx;\n    const modelRoot = view3d.model!.scene;\n    const control = this._control!;\n\n    session.addEventListener(XR.EVENTS.SELECT_START, this._onSelectStart);\n    session.addEventListener(XR.EVENTS.SELECT_END, this._onSelectEnd);\n\n    this._modelPlaced = true;\n    this.emit(\"modelPlaced\");\n\n    // Show scale up animation\n    const originalModelScale = modelRoot.scale.clone();\n    const scaleUpAnimation = new Animation({ context: session });\n\n    scaleUpAnimation.on(\"progress\", evt => {\n      const newScale = originalModelScale.clone().multiplyScalar(evt.easedProgress);\n      modelRoot.scale.copy(newScale);\n    });\n    scaleUpAnimation.on(\"finish\", () => {\n      modelRoot.scale.copy(originalModelScale);\n      control.init(ctx);\n    });\n    scaleUpAnimation.start();\n  }\n\n  public onStart = (ctx: XRContext) => {\n    const { view3d } = ctx;\n\n    super.onStart(ctx);\n\n    this._control = new ARHoverControl(this._options);\n\n    view3d.scene.hide();\n  }\n\n  public onEnd = (ctx: XRContext) => {\n    const { view3d, session } = ctx;\n\n    super.onEnd(ctx);\n\n    this._renderContext = null;\n    this._modelPlaced = false;\n\n    session.removeEventListener(XR.EVENTS.SELECT_START, this._onSelectStart);\n    session.removeEventListener(XR.EVENTS.SELECT_END, this._onSelectEnd);\n\n    this._control!.destroy(ctx);\n    this._control = null;\n\n    view3d.scene.show();\n  }\n\n  protected _beforeRender = (ctx: XRRenderContext) => {\n    this._renderContext = ctx;\n\n    if (!this._modelPlaced) {\n      this._initModelPosition(ctx);\n    } else {\n      this._control!.update(ctx);\n    }\n  }\n\n  private _initModelPosition(ctx: XRRenderContext) {\n    const {view3d, xrCam} = ctx;\n    const model = view3d.model;\n\n    // Make sure the model exist\n    if (!model) return;\n\n    const modelRoot = model.scene;\n    const camPos = new THREE.Vector3().setFromMatrixPosition(xrCam.matrixWorld);\n    const camQuat = new THREE.Quaternion().setFromRotationMatrix(xrCam.matrixWorld);\n    const viewDir = new THREE.Vector3(0, 0, -1).applyQuaternion(camQuat);\n\n    const modelBbox = model.bbox;\n    const bboxDiff = new THREE.Vector3().subVectors(modelBbox.max, modelBbox.min);\n    const maxComponent = Math.max(bboxDiff.x, bboxDiff.y, bboxDiff.z);\n\n    // Reset rotation & update position\n    modelRoot.position.copy(camPos);\n    modelRoot.position.add(viewDir.multiplyScalar(clamp(maxComponent, 0.5, 3))); // Place at 1m from camera\n    modelRoot.lookAt(camPos.setY(modelRoot.position.y));\n    modelRoot.updateMatrix();\n\n    view3d.scene.update(model);\n\n    if (!view3d.scene.visible) {\n      view3d.scene.show();\n      this.emit(\"canPlace\");\n    }\n  }\n\n  private _onSelectStart = (e) => {\n    this._control!.onSelectStart({\n      ...this._renderContext!,\n      frame: e.frame,\n    });\n  }\n\n  private _onSelectEnd = () => {\n    this._control!.onSelectEnd();\n  }\n}\n\nexport default HoverARSession;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\n// Browser related constants\n\nexport const IS_IOS = /iPad|iPhone|iPod/.test(navigator.userAgent)\n  || (navigator.platform === \"MacIntel\" && navigator.maxTouchPoints > 1);\n\nexport const IS_ANDROID = /android/i.test(navigator.userAgent);\n\nexport const IS_SAFARI = /safari/i.test(navigator.userAgent);\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport XRSession from \"./XRSession\";\nimport { IS_ANDROID } from \"~/consts/browser\";\nimport * as XR from \"~/consts/xr\";\n\n/**\n * AR session using Google's scene-viewer\n * @category XR\n * @see https://developers.google.com/ar/develop/java/scene-viewer\n */\nclass SceneViewerSession implements XRSession {\n  public readonly isWebXRSession = false;\n\n  /**\n   * Create new instance of SceneViewerSession\n   * @see https://developers.google.com/ar/develop/java/scene-viewer\n   * @param params Session params\n   * @param {string} [params.file] This URL specifies the glTF or glb file that should be loaded into Scene Viewer. This should be URL-escaped.\n   * @param {string} [params.browser_fallback_url] This is a Google Chrome feature supported only for web-based implementations. When the Google app com.google.android.googlequicksearchbox is not present on the device, this is the URL that Google Chrome navigates to.\n   * @param {string} [params.mode=\"ar_only\"] See {@link https://developers.google.com/ar/develop/java/scene-viewer} for available modes.\n   * @param {string} [params.title] A name for the model. If present, it will be displayed in the UI. The name will be truncated with ellipses after 60 characters.\n   * @param {string} [params.link] A URL for an external webpage. If present, a button will be surfaced in the UI that intents to this URL when clicked.\n   * @param {string} [params.sound] A URL to a looping audio track that is synchronized with the first animation embedded in a glTF file. It should be provided alongside a glTF with an animation of matching length. If present, the sound is looped after the model is loaded. This should be URL-escaped.\n   * @param {string} [params.resizable=true] When set to false, users will not be able to scale the model in the AR experience. Scaling works normally in the 3D experience.\n   */\n  constructor(public params: {\n    file: string,\n    browser_fallback_url?: string,\n    mode?: \"3d_preferred\" | \"3d_only\" | \"ar_preferred\" | \"ar_only\" | string,\n    title?: string,\n    link?: string,\n    sound?: string,\n    resizable?: \"true\" | \"false\" | boolean,\n    [key: string]: any,\n  }) {\n    if (!this.params.mode) {\n      // Default mode is \"ar_only\", which should use com.google.ar.core package\n      this.params.mode = \"ar_only\";\n    }\n  }\n\n  /**\n   * Return the availability of SceneViewerSession.\n   * Scene-viewer is available on all android devices with google ARCore installed.\n   * @returns {Promise} A Promise that resolves availability of this session(boolean).\n   */\n  public isAvailable() {\n    return Promise.resolve(IS_ANDROID);\n  }\n\n  /**\n   * Enter Scene-viewer AR session\n   */\n  public enter() {\n    const params = Object.assign({}, this.params);\n    const fallback = params.browser_fallback_url;\n    delete params.browser_fallback_url;\n\n    const resizable = params.resizable;\n    delete params.resizable;\n    if (resizable === true) {\n      params.resizable = \"true\";\n    } else if (resizable === false) {\n      params.resizable = \"false\";\n    } else if (resizable) {\n      params.resizable = resizable;\n    }\n\n    const queryString = Object.keys(params)\n      .filter(key => params[key] != null)\n      .map(key => `${key}=${params[key]}`).join(\"&\");\n\n    const intentURL = params.mode === \"ar_only\"\n      ? XR.SCENE_VIEWER.INTENT_AR_CORE(queryString, fallback)\n      : XR.SCENE_VIEWER.INTENT_SEARCHBOX(queryString, fallback || XR.SCENE_VIEWER.FALLBACK_DEFAULT(queryString));\n\n    const anchor = document.createElement(\"a\") as HTMLAnchorElement;\n    anchor.href = intentURL;\n    anchor.click();\n\n    return Promise.resolve();\n  }\n\n  public exit() {\n    // DO NOTHING\n  }\n}\n\nexport default SceneViewerSession;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport XRSession from \"./XRSession\";\nimport { IS_IOS, IS_SAFARI } from \"~/consts/browser\";\nimport { QUICKLOOK_SUPPORTED } from \"~/consts/xr\";\n\n/**\n * AR Session using Apple AR Quick Look Viewer\n * @category XR\n * @see https://developer.apple.com/augmented-reality/quick-look/\n */\nclass QuickLookSession implements XRSession {\n  /**\n   * Whether it's webxr-based session or not\n   * @type false\n   */\n  public readonly isWebXRSession = false;\n\n  private _file: string;\n  private _allowsContentScaling: boolean;\n\n  /**\n   * Create new instance of QuickLookSession\n   * @param {object} [options] Quick Look options\n   * @param {string} [options.file] USDZ file's location URL.\n   * @param {boolean} [options.allowsContentScaling=true] Whether to allow content scaling.\n   */\n  constructor({\n    file,\n    allowsContentScaling = true,\n  }: {\n    file: string,\n    allowsContentScaling?: boolean,\n  }) {\n    this._file = file;\n    this._allowsContentScaling = allowsContentScaling;\n  }\n\n  /**\n   * Return the availability of QuickLookSession.\n   * QuickLook AR is available on iOS12+ on Safari & Chrome browser\n   * Note that iOS Chrome won't show up QuickLook AR when it's local dev environment\n   * @returns {Promise} A Promise that resolves availability of this session(boolean).\n   */\n  public isAvailable() {\n    // This can handle all WebKit based browsers including iOS Safari & iOS Chrome\n    return Promise.resolve(QUICKLOOK_SUPPORTED && IS_IOS && IS_SAFARI);\n  }\n\n  /**\n   * Enter QuickLook AR Session\n   */\n  public enter() {\n    const anchor = document.createElement(\"a\") as HTMLAnchorElement;\n    anchor.setAttribute(\"rel\", \"ar\");\n    anchor.appendChild(document.createElement(\"img\"));\n\n    const usdzURL = new URL(this._file, window.location.toString());\n    if (!this._allowsContentScaling) {\n      usdzURL.hash = \"allowsContentScaling=0\";\n    }\n\n    anchor.setAttribute(\"href\", usdzURL.toString());\n    anchor.click();\n\n    return Promise.resolve();\n  }\n\n  public exit() {\n    // DO NOTHING\n  }\n}\n\nexport default QuickLookSession;\n","/*\n * Copyright (c) 2020 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\nimport * as THREE from \"three\";\nimport Model from \"~/core/Model\";\nimport View3DError from \"~/View3DError\";\nimport * as ERR from \"~/consts/error\";\n\n/**\n * Texture(image) model\n * @category Extra\n */\nclass TextureModel extends Model {\n  private _texture: THREE.Texture;\n  private _mesh: THREE.Mesh;\n\n  /**\n   * Texture that used for this model\n   * @see https://threejs.org/docs/index.html#api/en/textures/Texture\n   * @type THREE.Texture\n   */\n  public get texture() { return this._texture; }\n  /**\n   * Model's mesh object\n   * @see https://threejs.org/docs/index.html#api/en/objects/Mesh\n   * @type THREE.Mesh\n   */\n  public get mesh() { return this._mesh; }\n\n  /**\n   * Create new TextureModel\n   * @param {object} options Options\n   * @param {number} [options.width] Width of the model.\n   * @param {number} [options.height] Height of the model.\n   * @param {boolean} [options.billboard=false] When set to true, model will keep rotate to show its front face to camera. Only Y-axis rotation is considered.\n   * @throws {View3DError} `CODES.PROVIDE_WIDTH_OR_HEIGHT` When both width and height are not given.\n   */\n  constructor({\n    image,\n    width,\n    height,\n    billboard = false,\n  }: {\n    image: THREE.Texture | HTMLImageElement | HTMLCanvasElement | HTMLVideoElement;\n    width?: number;\n    height?: number;\n    billboard?: boolean;\n  }) {\n    const texture = (image as THREE.Texture).isTexture\n      ? image as THREE.Texture\n      : new THREE.Texture(image as HTMLImageElement);\n    const aspect = texture.image.width / texture.image.height;\n    if (width == null && height == null) {\n      throw new View3DError(ERR.MESSAGES.PROVIDE_WIDTH_OR_HEIGHT, ERR.CODES.PROVIDE_WIDTH_OR_HEIGHT);\n    }\n    if (width == null) {\n      width = height! * aspect;\n    } else if (height == null) {\n      height = width! / aspect;\n    }\n    texture.encoding = THREE.sRGBEncoding;\n    const geometry = new THREE.PlaneGeometry(width, height);\n    const material = new THREE.MeshBasicMaterial({ map: texture, side: THREE.DoubleSide });\n    const mesh = new THREE.Mesh(geometry, material);\n\n    super({ scenes: [mesh] });\n\n    this._texture = texture;\n    this._mesh = mesh;\n\n    if (billboard) {\n      const root = mesh;\n      root.onBeforeRender = (renderer, scene, camera) => {\n        const pos = root.getWorldPosition(new THREE.Vector3());\n        const camPos = new THREE.Vector3().setFromMatrixPosition(camera.matrixWorld);\n\n        root.lookAt(camPos.setY(pos.y));\n        mesh.updateMatrix();\n      };\n    }\n  }\n}\n\nexport default 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