08-17-2006, 12:22 AM
When I use mental ray to render planes with an alpha channel(billboarding leaves on a tree, in my case) The volume fog effects behind the plane do not show up. As a result, the fog only shows up where there are no leaves, and it is not a desirable end. Is there any settings I need to tweak here? or, does volume fog simply not work with transparency in mental ray? Thanks for your help.