In TrueSpace 7.51 and 7.6, there is a function called 'Shadowcatcher' (
http://cdn.caligari.com/proteam/proTeam ... atcher.wmv" ). When I test the function, I use shadow catcher shader for the plane and a photo for the background, but the plane can not be hided in rendering (see the picture below), how can I hide the plane as the effect in the course video?

