/**
 * GSplatManager manages the rendering of splats using a work buffer, where all active splats are
 * stored and rendered from.
 *
 * @ignore
 */
export class GSplatManager {
    constructor(device: any, director: any, layer: any, cameraNode: any);
    /** @type {GraphicsDevice} */
    device: GraphicsDevice;
    /** @type {GraphNode} */
    node: GraphNode;
    /** @type {GSplatWorkBuffer} */
    workBuffer: GSplatWorkBuffer;
    /** @type {GSplatRenderer} */
    renderer: GSplatRenderer;
    /**
     * A map of versioned world states, keyed by version.
     *
     * @type {Map<number, GSplatWorldState>}
     */
    worldStates: Map<number, GSplatWorldState>;
    /**
     * The version of the last world state.
     *
     * @type {number}
     */
    lastWorldStateVersion: number;
    /** @type {GSplatUnifiedSorter} */
    sorter: GSplatUnifiedSorter;
    /** @type {number} */
    sortedVersion: number;
    /** @type {number} */
    framesTillFullUpdate: number;
    /** @type {Vec3} */
    lastLodCameraPos: Vec3;
    /** @type {Vec3} */
    lastLodCameraFwd: Vec3;
    /** @type {Vec3} */
    lastSortCameraPos: Vec3;
    /** @type {Vec3} */
    lastSortCameraFwd: Vec3;
    /** @type {boolean} */
    sortNeeded: boolean;
    /** @type {Vec3} */
    lastColorUpdateCameraPos: Vec3;
    /** @type {Vec3} */
    lastColorUpdateCameraFwd: Vec3;
    /** @type {GraphNode} */
    cameraNode: GraphNode;
    /** @type {Scene} */
    scene: Scene;
    /**
     * Layer placements, only non-octree placements are included.
     *
     * @type {GSplatPlacement[]}
     */
    layerPlacements: GSplatPlacement[];
    /** @type {boolean} */
    layerPlacementsDirty: boolean;
    /** @type {Map<GSplatPlacement, GSplatOctreeInstance>} */
    octreeInstances: Map<GSplatPlacement, GSplatOctreeInstance>;
    /**
     * Octree instances scheduled for destruction. We collect their releases and destroy them
     * when creating the next world state
     *
     * @type {GSplatOctreeInstance[]}
     */
    octreeInstancesToDestroy: GSplatOctreeInstance[];
    /**
     * Flag set when new octree instances are added, to trigger immediate LOD evaluation.
     *
     * @type {boolean}
     */
    hasNewOctreeInstances: boolean;
    director: any;
    destroy(): void;
    _destroyed: boolean;
    get material(): import("../materials/shader-material.js").ShaderMaterial;
    createSorter(): GSplatUnifiedSorter;
    /**
     * Supply the manager with the placements to use. This is used to update the manager when the
     * layer's placements have changed, called infrequently.
     *
     * @param {GSplatPlacement[]} placements - The placements to reconcile with.
     */
    reconcile(placements: GSplatPlacement[]): void;
    updateWorldState(): void;
    onSorted(count: any, version: any, orderData: any): void;
    /**
     * Tests if the camera has moved or rotated enough to require LOD update.
     *
     * @returns {boolean} True if camera moved/rotated over thresholds, otherwise false.
     */
    testCameraMovedForLod(): boolean;
    /**
     * Tests if the camera has moved enough to require re-sorting.
     * - For radial sorting: only position matters (rotation doesn't affect sort order)
     * - For directional sorting: only forward direction matters (position doesn't affect sort order)
     *
     * @returns {boolean} True if camera moved enough to require re-sorting, otherwise false.
     */
    testCameraMovedForSort(): boolean;
    /**
     * Updates the camera tracking state for color accumulation calculations.
     * Called after any render that updates colors (full or color-only).
     */
    updateColorCameraTracking(): void;
    /**
     * Determines the colorization mode for rendering based on debug flags.
     *
     * @returns {Array<number[]>|undefined} Color array for debug visualization, or undefined for normal rendering
     */
    getDebugColors(): Array<number[]> | undefined;
    /**
     * Calculates camera movement deltas since last color update.
     * Updates and returns the shared _cameraDeltas object.
     *
     * @returns {{ rotationDelta: number, translationDelta: number }} Shared camera movement deltas object
     */
    calculateColorCameraDeltas(): {
        rotationDelta: number;
        translationDelta: number;
    };
    /**
     * Fires the frame:ready event with current sorting and loading state.
     */
    fireFrameReadyEvent(): void;
    update(): number;
    /**
     * Sorts the splats of the given world state.
     *
     * @param {GSplatWorldState} lastState - The last world state.
     */
    sort(lastState: GSplatWorldState): void;
    /**
     * Prepares sort parameters data for the sorter worker.
     *
     * @param {GSplatWorldState} worldState - The world state containing all needed data.
     * @returns {object} - Data for sorter worker.
     */
    prepareSortParameters(worldState: GSplatWorldState): object;
}
import type { GraphicsDevice } from '../../platform/graphics/graphics-device.js';
import { GraphNode } from '../graph-node.js';
import { GSplatWorkBuffer } from './gsplat-work-buffer.js';
import { GSplatRenderer } from './gsplat-renderer.js';
import { GSplatWorldState } from './gsplat-world-state.js';
import { GSplatUnifiedSorter } from './gsplat-unified-sorter.js';
import { Vec3 } from '../../core/math/vec3.js';
import type { Scene } from '../scene.js';
import type { GSplatPlacement } from './gsplat-placement.js';
import { GSplatOctreeInstance } from './gsplat-octree-instance.js';