Actually, the option to not render back facing polygons won't work. I remember seeing a technical explanation somewhere in the forums about this...

IIRC, the problem here is that Poser's engine, due to lack of precision, can't decide which polygon should be the back-facing polygon. So it renders two polygons in the same 3D space with apparently the same normal facing.

A polygon whose normals are facing completely away from the camera shouldn't render black. It shouldn't render at all regardless of whether or not it receives light.

One solution I've found to work here is to apply a displacement map to the tarp. The displacement map doesn't have to be an actual image. In the Materials Room, using a Math Node with a Simple Colour sub-node set to plain white seems to work.

You'll have to play around displacement value and ramp it up gradually until the black parts disappear.

Message edited on: 11/27/2004 08:10