Reference Source

src/viewer/scene/models/VBOSceneModel/lib/layers/pointsInstancing/PointsInstancingRenderers.js

import {PointsInstancingColorRenderer} from "./renderers/PointsInstancingColorRenderer.js";
import {PointsInstancingSilhouetteRenderer} from "./renderers/PointsInstancingSilhouetteRenderer.js";
import {PointsInstancingPickMeshRenderer} from "./renderers/PointsInstancingPickMeshRenderer.js";
import {PointsInstancingPickDepthRenderer} from "./renderers/PointsInstancingPickDepthRenderer.js";
import {PointsInstancingOcclusionRenderer} from "./renderers/PointsInstancingOcclusionRenderer.js";
import {PointsInstancingDepthRenderer} from "./renderers/PointsInstancingDepthRenderer.js";
import {PointsInstancingShadowRenderer} from "./renderers/PointsInstancingShadowRenderer.js";

/**
 * @private
 */
class PointsInstancingRenderers {

    constructor(scene) {
        this._scene = scene;
    }

    _compile() {
        if (this._colorRenderer && (!this._colorRenderer.getValid())) {
            this._colorRenderer.destroy();
            this._colorRenderer = null;
        }
        if (this._depthRenderer && (!this._depthRenderer.getValid())) {
            this._depthRenderer.destroy();
            this._depthRenderer = null;
        }
        if (this._silhouetteRenderer && (!this._silhouetteRenderer.getValid())) {
            this._silhouetteRenderer.destroy();
            this._silhouetteRenderer = null;
        }
        if (this._pickMeshRenderer && (!this._pickMeshRenderer.getValid())) {
            this._pickMeshRenderer.destroy();
            this._pickMeshRenderer = null;
        }
        if (this._pickDepthRenderer && (!this._pickDepthRenderer.getValid())) {
            this._pickDepthRenderer.destroy();
            this._pickDepthRenderer = null;
        }
        if (this._occlusionRenderer && this._occlusionRenderer.getValid() === false) {
            this._occlusionRenderer.destroy();
            this._occlusionRenderer = null;
        }
        if (this._shadowRenderer && (!this._shadowRenderer.getValid())) {
            this._shadowRenderer.destroy();
            this._shadowRenderer = null;
        }
    }

    get colorRenderer() {
        if (!this._colorRenderer) {
            this._colorRenderer = new PointsInstancingColorRenderer(this._scene, false);
        }
        return this._colorRenderer;
    }

    get silhouetteRenderer() {
        if (!this._silhouetteRenderer) {
            this._silhouetteRenderer = new PointsInstancingSilhouetteRenderer(this._scene);
        }
        return this._silhouetteRenderer;
    }

    get depthRenderer() {
        if (!this._depthRenderer) {
            this._depthRenderer = new PointsInstancingDepthRenderer(this._scene);
        }
        return this._depthRenderer;
    }

    get pickMeshRenderer() {
        if (!this._pickMeshRenderer) {
            this._pickMeshRenderer = new PointsInstancingPickMeshRenderer(this._scene);
        }
        return this._pickMeshRenderer;
    }

    get pickDepthRenderer() {
        if (!this._pickDepthRenderer) {
            this._pickDepthRenderer = new PointsInstancingPickDepthRenderer(this._scene);
        }
        return this._pickDepthRenderer;
    }

    get occlusionRenderer() {
        if (!this._occlusionRenderer) {
            this._occlusionRenderer = new PointsInstancingOcclusionRenderer(this._scene);
        }
        return this._occlusionRenderer;
    }

    get shadowRenderer() {
        if (!this._shadowRenderer) {
            this._shadowRenderer = new PointsInstancingShadowRenderer(this._scene);
        }
        return this._shadowRenderer;
    }

    _destroy() {
        if (this._colorRenderer) {
            this._colorRenderer.destroy();
        }
        if (this._depthRenderer) {
            this._depthRenderer.destroy();
        }
        if (this._silhouetteRenderer) {
            this._silhouetteRenderer.destroy();
        }
        if (this._pickMeshRenderer) {
            this._pickMeshRenderer.destroy();
        }
        if (this._pickDepthRenderer) {
            this._pickDepthRenderer.destroy();
        }
        if (this._occlusionRenderer) {
            this._occlusionRenderer.destroy();
        }
        if (this._shadowRenderer) {
            this._shadowRenderer.destroy();
        }
    }
}

const cachedRenderers = {};

/**
 * @private
 */
function getPointsInstancingRenderers(scene) {
    const sceneId = scene.id;
    let instancingRenderers = cachedRenderers[sceneId];
    if (!instancingRenderers) {
        instancingRenderers = new PointsInstancingRenderers(scene);
        cachedRenderers[sceneId] = instancingRenderers;
        instancingRenderers._compile();
        scene.on("compile", () => {
            instancingRenderers._compile();
        });
        scene.on("destroyed", () => {
            delete cachedRenderers[sceneId];
            instancingRenderers._destroy();
        });
    }
    return instancingRenderers;
}

export {getPointsInstancingRenderers};