Lately I tried to composite some objects into an environment background using a plane as a matte surface. unfortunatly all my objects seemed to look transparent as if they were merged into the background image. is it possible to exclude the background image from gi calculations? it looked like it had something to do with that.
any help would be nice
any help would be nice
![smile](https://forums.chaos.com/core/images/smilies/smile.gif)