Two rooms.
Two volumes.

The official multi-room example adds two independently baked LightProbeGrid instances to one scene. This contract lab keeps their ownership visible: bake separately, detach one grid, then reattach it without conflating the volumes.

active path

—

runtime lane

—

volumes

—

ownership

—

bake time

—

draw calls

—

Preparing two bounded probe volumes…

Runtime uses the installed r185 WebGL-only LightProbeGrid addon; native WebGPU parity and the official page/assets remain unclaimed.

Drag to orbit · press R to reset