Garbage Collection in Wonderland Engine

Is the garbage collection heavy?

WASM doesn’t use garbage collection and for the JavaScript API we carefully pool objects to avoid garbage.
You can cheaply delete objects, try to use WL.scene.addObjects() to batch create, if you care about optimal performance when spawning many objects often (as you said, a pool would be useful there, see the implementation in mesh-particles example :slightly_smiling_face: )
Otherwise Object | Wonderland Engine.