This is a work in progress.

Layers that are special for worlds, mirrors and cameras

Special layers

Layers that you should not touch

Don't touch

Layers 22 to 31 included are for world creators

Layers 22 to 31 are free to be used by world creators. The name of the layers cannot be changed, so the Unity project settings are ignored.

Layer 22 is often used for PostProcessing, but you don't have to.

Layers that are special for Avatar creators

Special for Avatars

Collision matrix

Layers can be divided into groups that share the same settings.

Untitled

Collisions

The entire list of layers with more details

Layer names in-Editor and in VRChat may be different

When working with Udon, the layer names of the project are ignored, and will be different in-Editor than in VRChat.

You should use the layer index instead.