Requesting help with showing object in Reflector, but hiding it from environment in hubs

Questions
2

I’m afraid what you are trying to do requires a modification of Reflector. However, this can easily be achieved with THREE.Layers.

Meaning you enable an additional layer for the reflector’s virtual camera.

virtualCamera.layers.enable( 1 );

In the next step, you move all objects to the above layer that you only want to render in the mirror.

mesh.layers.set( 1 );

Full example: https://jsfiddle.net/oqakydzw/