Hello
In a my simply test I have a strange behavior.
If the visibility key of an object without thickness like a plane with any transparent material* is set to “0”, its presence in the scene is somehow visible.
the material has un not ticked the Thin shell.. option
I think that any object thick or thin, with any material, it must not appear during rendering, if his visibility key is set to "0"
The function visibility is strongly important for me because it let me to set automatically the presence or less of different objects frame by frame, without to must switch on/off manually the layer visibility property.
thanks a lot