Manga Style Shaders render problem...Help

booksbydavid

I'm relatively new to Studio (coming from a Carrara, Poser packground). I've been using Manga Style Shaders for a while now rendering figures with background in post. I've been trying the Shaders on different environment and architectural sets, but I can't get the scenes to render correctly. The surfaces parallel to the ground render black. I've rendered with the headlamp, distant light, spot, point and various combinations with the same results. I'm rendering in 3delight. I know it must be something simple I'm missing, but I just don't seem to be able to figure it out. Any help would be appreciated. Thank you.