preact

frontend/node_modules/three/examples/jsm/renderers/common/RenderBundles.js

@@ -0,0 +1,38 @@
+import ChainMap from './ChainMap.js';
+import RenderBundle from './RenderBundle.js';
+
+class RenderBundles {
+
+	constructor() {
+
+		this.lists = new ChainMap();
+
+	}
+
+	get( scene, camera ) {
+
+		const lists = this.lists;
+		const keys = [ scene, camera ];
+
+		let list = lists.get( keys );
+
+		if ( list === undefined ) {
+
+			list = new RenderBundle( scene, camera );
+			lists.set( keys, list );
+
+		}
+
+		return list;
+
+	}
+
+	dispose() {
+
+		this.lists = new ChainMap();
+
+	}
+
+}
+
+export default RenderBundles;