Target: The Oculus XRPassThrough Layer Component object.
Procedural Mesh Component: The component from where you use the mesh for the surface.
Update Transform: If True, the transform is updated every frame. Otherwise, the geometry is assumed to be static and updates to either the geometry or the transform are not reflected. Since this has a small overhead, it should only be used if needed.
Note: If changes are made to the static mesh geometry itself, they will not be reflected here. The actor needs to be removed and readded for these changes to take effect.