{"version":3,"file":"Reflector.cjs","sources":["../../src/objects/Reflector.js"],"sourcesContent":["import {\n Color,\n Matrix4,\n Mesh,\n PerspectiveCamera,\n Plane,\n ShaderMaterial,\n UniformsUtils,\n Vector3,\n Vector4,\n WebGLRenderTarget,\n HalfFloatType,\n NoToneMapping,\n} from 'three'\nimport { version } from '../_polyfill/constants'\n\nclass Reflector extends Mesh {\n static ReflectorShader = {\n uniforms: {\n color: {\n value: null,\n },\n\n tDiffuse: {\n value: null,\n },\n\n textureMatrix: {\n value: null,\n },\n },\n\n vertexShader: /* glsl */ `\n\t\tuniform mat4 textureMatrix;\n\t\tvarying vec4 vUv;\n\n\t\t#include \n\t\t#include \n\n\t\tvoid main() {\n\n\t\t\tvUv = textureMatrix * vec4( position, 1.0 );\n\n\t\t\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n\n\t\t\t#include \n\n\t\t}`,\n\n fragmentShader: /* glsl */ `\n\t\tuniform vec3 color;\n\t\tuniform sampler2D tDiffuse;\n\t\tvarying vec4 vUv;\n\n\t\t#include \n\n\t\tfloat blendOverlay( float base, float blend ) {\n\n\t\t\treturn( base < 0.5 ? ( 2.0 * base * blend ) : ( 1.0 - 2.0 * ( 1.0 - base ) * ( 1.0 - blend ) ) );\n\n\t\t}\n\n\t\tvec3 blendOverlay( vec3 base, vec3 blend ) {\n\n\t\t\treturn vec3( blendOverlay( base.r, blend.r ), blendOverlay( base.g, blend.g ), blendOverlay( base.b, blend.b ) );\n\n\t\t}\n\n\t\tvoid main() {\n\n\t\t\t#include \n\n\t\t\tvec4 base = texture2DProj( tDiffuse, vUv );\n\t\t\tgl_FragColor = vec4( blendOverlay( base.rgb, color ), 1.0 );\n\n\t\t\t#include \n\t\t\t#include <${version >= 154 ? 'colorspace_fragment' : 'encodings_fragment'}>\n\n\t\t}`,\n }\n\n constructor(geometry, options = {}) {\n super(geometry)\n\n this.isReflector = true\n\n this.type = 'Reflector'\n this.camera = new PerspectiveCamera()\n\n const scope = this\n\n const color = options.color !== undefined ? new Color(options.color) : new Color(0x7f7f7f)\n const textureWidth = options.textureWidth || 512\n const textureHeight = options.textureHeight || 512\n const clipBias = options.clipBias || 0\n const shader = options.shader || Reflector.ReflectorShader\n const multisample = options.multisample !== undefined ? options.multisample : 4\n\n //\n\n const reflectorPlane = new Plane()\n const normal = new Vector3()\n const reflectorWorldPosition = new Vector3()\n const cameraWorldPosition = new Vector3()\n const rotationMatrix = new Matrix4()\n const lookAtPosition = new Vector3(0, 0, -1)\n const clipPlane = new Vector4()\n\n const view = new Vector3()\n const target = new Vector3()\n const q = new Vector4()\n\n const textureMatrix = new Matrix4()\n const virtualCamera = this.camera\n\n const renderTarget = new WebGLRenderTarget(textureWidth, textureHeight, {\n samples: multisample,\n type: HalfFloatType,\n })\n\n const material = new ShaderMaterial({\n uniforms: UniformsUtils.clone(shader.uniforms),\n fragmentShader: shader.fragmentShader,\n vertexShader: shader.vertexShader,\n })\n\n material.uniforms['tDiffuse'].value = renderTarget.texture\n material.uniforms['color'].value = color\n material.uniforms['textureMatrix'].value = textureMatrix\n\n this.material = material\n\n this.onBeforeRender = function (renderer, scene, camera) {\n reflectorWorldPosition.setFromMatrixPosition(scope.matrixWorld)\n cameraWorldPosition.setFromMatrixPosition(camera.matrixWorld)\n\n rotationMatrix.extractRotation(scope.matrixWorld)\n\n normal.set(0, 0, 1)\n normal.applyMatrix4(rotationMatrix)\n\n view.subVectors(reflectorWorldPosition, cameraWorldPosition)\n\n // Avoid rendering when reflector is facing away\n\n if (view.dot(normal) > 0) return\n\n view.reflect(normal).negate()\n view.add(reflectorWorldPosition)\n\n rotationMatrix.extractRotation(camera.matrixWorld)\n\n lookAtPosition.set(0, 0, -1)\n lookAtPosition.applyMatrix4(rotationMatrix)\n lookAtPosition.add(cameraWorldPosition)\n\n target.subVectors(reflectorWorldPosition, lookAtPosition)\n target.reflect(normal).negate()\n target.add(reflectorWorldPosition)\n\n virtualCamera.position.copy(view)\n virtualCamera.up.set(0, 1, 0)\n virtualCamera.up.applyMatrix4(rotationMatrix)\n virtualCamera.up.reflect(normal)\n virtualCamera.lookAt(target)\n\n virtualCamera.far = camera.far // Used in WebGLBackground\n\n virtualCamera.updateMatrixWorld()\n virtualCamera.projectionMatrix.copy(camera.projectionMatrix)\n\n // Update the texture matrix\n textureMatrix.set(0.5, 0.0, 0.0, 0.5, 0.0, 0.5, 0.0, 0.5, 0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0, 1.0)\n textureMatrix.multiply(virtualCamera.projectionMatrix)\n textureMatrix.multiply(virtualCamera.matrixWorldInverse)\n textureMatrix.multiply(scope.matrixWorld)\n\n // Now update projection matrix with new clip plane, implementing code from: http://www.terathon.com/code/oblique.html\n // Paper explaining this technique: http://www.terathon.com/lengyel/Lengyel-Oblique.pdf\n reflectorPlane.setFromNormalAndCoplanarPoint(normal, reflectorWorldPosition)\n reflectorPlane.applyMatrix4(virtualCamera.matrixWorldInverse)\n\n clipPlane.set(reflectorPlane.normal.x, reflectorPlane.normal.y, reflectorPlane.normal.z, reflectorPlane.constant)\n\n const projectionMatrix = virtualCamera.projectionMatrix\n\n q.x = (Math.sign(clipPlane.x) + projectionMatrix.elements[8]) / projectionMatrix.elements[0]\n q.y = (Math.sign(clipPlane.y) + projectionMatrix.elements[9]) / projectionMatrix.elements[5]\n q.z = -1.0\n q.w = (1.0 + projectionMatrix.elements[10]) / projectionMatrix.elements[14]\n\n // Calculate the scaled plane vector\n clipPlane.multiplyScalar(2.0 / clipPlane.dot(q))\n\n // Replacing the third row of the projection matrix\n projectionMatrix.elements[2] = clipPlane.x\n projectionMatrix.elements[6] = clipPlane.y\n projectionMatrix.elements[10] = clipPlane.z + 1.0 - clipBias\n projectionMatrix.elements[14] = clipPlane.w\n\n // Render\n scope.visible = false\n\n const currentRenderTarget = renderer.getRenderTarget()\n\n const currentXrEnabled = renderer.xr.enabled\n const currentShadowAutoUpdate = renderer.shadowMap.autoUpdate\n const currentToneMapping = renderer.toneMapping\n\n let isSRGB = false\n if ('outputColorSpace' in renderer) isSRGB = renderer.outputColorSpace === 'srgb'\n else isSRGB = renderer.outputEncoding === 3001 // sRGBEncoding\n\n renderer.xr.enabled = false // Avoid camera modification\n renderer.shadowMap.autoUpdate = false // Avoid re-computing shadows\n if ('outputColorSpace' in renderer) renderer.outputColorSpace = 'srgb-linear'\n else renderer.outputEncoding = 3000 // LinearEncoding\n renderer.toneMapping = NoToneMapping\n\n renderer.setRenderTarget(renderTarget)\n\n renderer.state.buffers.depth.setMask(true) // make sure the depth buffer is writable so it can be properly cleared, see #18897\n\n if (renderer.autoClear === false) renderer.clear()\n renderer.render(scene, virtualCamera)\n\n renderer.xr.enabled = currentXrEnabled\n renderer.shadowMap.autoUpdate = currentShadowAutoUpdate\n renderer.toneMapping = currentToneMapping\n\n if ('outputColorSpace' in renderer) renderer.outputColorSpace = isSRGB ? 'srgb' : 'srgb-linear'\n else renderer.outputEncoding = isSRGB ? 3001 : 3000\n\n renderer.setRenderTarget(currentRenderTarget)\n\n // Restore viewport\n\n const viewport = camera.viewport\n\n if (viewport !== undefined) {\n renderer.state.viewport(viewport)\n }\n\n scope.visible = true\n }\n\n this.getRenderTarget = function () {\n return renderTarget\n }\n\n this.dispose = function () {\n renderTarget.dispose()\n scope.material.dispose()\n }\n }\n}\n\nexport { Reflector }\n"],"names":["Mesh","PerspectiveCamera","Color","Plane","Vector3","Matrix4","Vector4","WebGLRenderTarget","HalfFloatType","ShaderMaterial","UniformsUtils","NoToneMapping","version"],"mappings":";;;;;;;;;;AAgBA,MAAM,aAAN,cAAwBA,MAAAA,KAAK;AAAA,EAiE3B,YAAY,UAAU,UAAU,IAAI;AAClC,UAAM,QAAQ;AAEd,SAAK,cAAc;AAEnB,SAAK,OAAO;AACZ,SAAK,SAAS,IAAIC,wBAAmB;AAErC,UAAM,QAAQ;AAEd,UAAM,QAAQ,QAAQ,UAAU,SAAY,IAAIC,YAAM,QAAQ,KAAK,IAAI,IAAIA,MAAAA,MAAM,OAAQ;AACzF,UAAM,eAAe,QAAQ,gBAAgB;AAC7C,UAAM,gBAAgB,QAAQ,iBAAiB;AAC/C,UAAM,WAAW,QAAQ,YAAY;AACrC,UAAM,SAAS,QAAQ,UAAU,WAAU;AAC3C,UAAM,cAAc,QAAQ,gBAAgB,SAAY,QAAQ,cAAc;AAI9E,UAAM,iBAAiB,IAAIC,YAAO;AAClC,UAAM,SAAS,IAAIC,cAAS;AAC5B,UAAM,yBAAyB,IAAIA,cAAS;AAC5C,UAAM,sBAAsB,IAAIA,cAAS;AACzC,UAAM,iBAAiB,IAAIC,cAAS;AACpC,UAAM,iBAAiB,IAAID,MAAO,QAAC,GAAG,GAAG,EAAE;AAC3C,UAAM,YAAY,IAAIE,cAAS;AAE/B,UAAM,OAAO,IAAIF,cAAS;AAC1B,UAAM,SAAS,IAAIA,cAAS;AAC5B,UAAM,IAAI,IAAIE,cAAS;AAEvB,UAAM,gBAAgB,IAAID,cAAS;AACnC,UAAM,gBAAgB,KAAK;AAE3B,UAAM,eAAe,IAAIE,wBAAkB,cAAc,eAAe;AAAA,MACtE,SAAS;AAAA,MACT,MAAMC,MAAa;AAAA,IACzB,CAAK;AAED,UAAM,WAAW,IAAIC,qBAAe;AAAA,MAClC,UAAUC,MAAa,cAAC,MAAM,OAAO,QAAQ;AAAA,MAC7C,gBAAgB,OAAO;AAAA,MACvB,cAAc,OAAO;AAAA,IAC3B,CAAK;AAED,aAAS,SAAS,UAAU,EAAE,QAAQ,aAAa;AACnD,aAAS,SAAS,OAAO,EAAE,QAAQ;AACnC,aAAS,SAAS,eAAe,EAAE,QAAQ;AAE3C,SAAK,WAAW;AAEhB,SAAK,iBAAiB,SAAU,UAAU,OAAO,QAAQ;AACvD,6BAAuB,sBAAsB,MAAM,WAAW;AAC9D,0BAAoB,sBAAsB,OAAO,WAAW;AAE5D,qBAAe,gBAAgB,MAAM,WAAW;AAEhD,aAAO,IAAI,GAAG,GAAG,CAAC;AAClB,aAAO,aAAa,cAAc;AAElC,WAAK,WAAW,wBAAwB,mBAAmB;AAI3D,UAAI,KAAK,IAAI,MAAM,IAAI;AAAG;AAE1B,WAAK,QAAQ,MAAM,EAAE,OAAQ;AAC7B,WAAK,IAAI,sBAAsB;AAE/B,qBAAe,gBAAgB,OAAO,WAAW;AAEjD,qBAAe,IAAI,GAAG,GAAG,EAAE;AAC3B,qBAAe,aAAa,cAAc;AAC1C,qBAAe,IAAI,mBAAmB;AAEtC,aAAO,WAAW,wBAAwB,cAAc;AACxD,aAAO,QAAQ,MAAM,EAAE,OAAQ;AAC/B,aAAO,IAAI,sBAAsB;AAEjC,oBAAc,SAAS,KAAK,IAAI;AAChC,oBAAc,GAAG,IAAI,GAAG,GAAG,CAAC;AAC5B,oBAAc,GAAG,aAAa,cAAc;AAC5C,oBAAc,GAAG,QAAQ,MAAM;AAC/B,oBAAc,OAAO,MAAM;AAE3B,oBAAc,MAAM,OAAO;AAE3B,oBAAc,kBAAmB;AACjC,oBAAc,iBAAiB,KAAK,OAAO,gBAAgB;AAG3D,oBAAc,IAAI,KAAK,GAAK,GAAK,KAAK,GAAK,KAAK,GAAK,KAAK,GAAK,GAAK,KAAK,KAAK,GAAK,GAAK,GAAK,CAAG;AAChG,oBAAc,SAAS,cAAc,gBAAgB;AACrD,oBAAc,SAAS,cAAc,kBAAkB;AACvD,oBAAc,SAAS,MAAM,WAAW;AAIxC,qBAAe,8BAA8B,QAAQ,sBAAsB;AAC3E,qBAAe,aAAa,cAAc,kBAAkB;AAE5D,gBAAU,IAAI,eAAe,OAAO,GAAG,eAAe,OAAO,GAAG,eAAe,OAAO,GAAG,eAAe,QAAQ;AAEhH,YAAM,mBAAmB,cAAc;AAEvC,QAAE,KAAK,KAAK,KAAK,UAAU,CAAC,IAAI,iBAAiB,SAAS,CAAC,KAAK,iBAAiB,SAAS,CAAC;AAC3F,QAAE,KAAK,KAAK,KAAK,UAAU,CAAC,IAAI,iBAAiB,SAAS,CAAC,KAAK,iBAAiB,SAAS,CAAC;AAC3F,QAAE,IAAI;AACN,QAAE,KAAK,IAAM,iBAAiB,SAAS,EAAE,KAAK,iBAAiB,SAAS,EAAE;AAG1E,gBAAU,eAAe,IAAM,UAAU,IAAI,CAAC,CAAC;AAG/C,uBAAiB,SAAS,CAAC,IAAI,UAAU;AACzC,uBAAiB,SAAS,CAAC,IAAI,UAAU;AACzC,uBAAiB,SAAS,EAAE,IAAI,UAAU,IAAI,IAAM;AACpD,uBAAiB,SAAS,EAAE,IAAI,UAAU;AAG1C,YAAM,UAAU;AAEhB,YAAM,sBAAsB,SAAS,gBAAiB;AAEtD,YAAM,mBAAmB,SAAS,GAAG;AACrC,YAAM,0BAA0B,SAAS,UAAU;AACnD,YAAM,qBAAqB,SAAS;AAEpC,UAAI,SAAS;AACb,UAAI,sBAAsB;AAAU,iBAAS,SAAS,qBAAqB;AAAA;AACtE,iBAAS,SAAS,mBAAmB;AAE1C,eAAS,GAAG,UAAU;AACtB,eAAS,UAAU,aAAa;AAChC,UAAI,sBAAsB;AAAU,iBAAS,mBAAmB;AAAA;AAC3D,iBAAS,iBAAiB;AAC/B,eAAS,cAAcC,MAAa;AAEpC,eAAS,gBAAgB,YAAY;AAErC,eAAS,MAAM,QAAQ,MAAM,QAAQ,IAAI;AAEzC,UAAI,SAAS,cAAc;AAAO,iBAAS,MAAO;AAClD,eAAS,OAAO,OAAO,aAAa;AAEpC,eAAS,GAAG,UAAU;AACtB,eAAS,UAAU,aAAa;AAChC,eAAS,cAAc;AAEvB,UAAI,sBAAsB;AAAU,iBAAS,mBAAmB,SAAS,SAAS;AAAA;AAC7E,iBAAS,iBAAiB,SAAS,OAAO;AAE/C,eAAS,gBAAgB,mBAAmB;AAI5C,YAAM,WAAW,OAAO;AAExB,UAAI,aAAa,QAAW;AAC1B,iBAAS,MAAM,SAAS,QAAQ;AAAA,MACjC;AAED,YAAM,UAAU;AAAA,IACjB;AAED,SAAK,kBAAkB,WAAY;AACjC,aAAO;AAAA,IACR;AAED,SAAK,UAAU,WAAY;AACzB,mBAAa,QAAS;AACtB,YAAM,SAAS,QAAS;AAAA,IACzB;AAAA,EACF;AACH;AA/OA,IAAM,YAAN;AACE,cADI,WACG,mBAAkB;AAAA,EACvB,UAAU;AAAA,IACR,OAAO;AAAA,MACL,OAAO;AAAA,IACR;AAAA,IAED,UAAU;AAAA,MACR,OAAO;AAAA,IACR;AAAA,IAED,eAAe;AAAA,MACb,OAAO;AAAA,IACR;AAAA,EACF;AAAA,EAED;AAAA;AAAA,IAAyB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAiBzB;AAAA;AAAA,IAA2B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,eA2BhBC,qBAAW,MAAM,wBAAwB;AAAA;AAAA;AAAA;AAGrD;;"}