Many thanks for the replies:-)) Havn't sorted it yet in my scene, but I'll give these ideas a go. The reason I havn't sorted it is 'cos there are other problems with the cyclorama in P5 regarding the lighting (everything comes out so dark; then when you make everything brighter, whether in the Mat Room or by the lights, the other planes' transparnt areas show up bright against the background (even with NO ambient, FULL transparency and all the other glitches that can occur fixed). I know DAZ doesn't support P5, so I'll just have to make the best of it -- I don't have the time, patience nor skill to try to recreate the "wilderness" in Bryce to use as a background :-) One thing I will try though, is importing the base Cyclorama .obj into a 3D app, extruding it along normals just a tad, and see if the resulting (no-longer flat) surface receives shadows properly.. If I solve this, I'll post something. If I don't I'll probably forget all about it and go on to something else... Or faff about in post-work instead... Cheers, Diolma