This allows irradiance volume that have less priority to
transfer lighting to the ones with higher priority.
Meaning interactive relighting from the world or
lookdev HDRI is now supported if the world isn't baked
inside the volume data.
This should improve workflow with larger scenes and
interactivity with light setups.
To help setup with dynamic objects, this patch introduce
3 new parameter to remove some components from the
irradiance grids.
Pull Request: https://projects.blender.org/blender/blender/pulls/110838
5d2e351baf