playcanvas/build/playcanvas.dbg/src/scene/graphics/lightmap-cache.js

Open-source WebGL/WebGPU 3D engine for the web

import { RefCountedCache } from '../../core/ref-counted-cache.js';

// Pure static class, implementing the cache of lightmaps generated at runtime using Lightmapper
// this allows us to automatically release realtime baked lightmaps when mesh instances using them are destroyed
class LightmapCache {
    // add texture reference to lightmap cache
    static incRef(texture) {
        this.cache.incRef(texture);
    }
    // remove texture reference from lightmap cache
    static decRef(texture) {
        this.cache.decRef(texture);
    }
    static destroy() {
        this.cache.destroy();
    }
}
LightmapCache.cache = new RefCountedCache();

export { LightmapCache };