www.kraytracing.com

Thanks Jure, all is clear now. I'll try double sided first, then I'll sort out all the normals and do a comparison.

Thanks Silverlw, I'll take a closer look at the render window options.

Can you explain the 'cam_singleside 0; in kray's tailer' a little more please. I'm not familiar with this at all.

ooh, just noticed that I've got kray 1.041 not 1.612 - can I get my hands on kray 1.612 to test?

Just been having a go with kray free and after reading the manual I was getting some really good results on a quick test scene that I knocked up in lightwave :D . So I deceided to try it out on one of my past projects (which was modelled in rhino - so loads of polys and normals all over the place). ...