Unfortunately, I don’t have access to Rhino at the moment, so I can’t give too much detail on this. Hopefully I can get some ideas for what might be wrong either way.
Anyway, I was creating a character in Rhino (using T-splines) and wanted to add his face using a V-Ray texture using an image I made, applied with planar mapping. I could not get the face to appear only on the front of the character’s head- it would repeat on the back as well. Check it out here to see what I mean. I wish I had the file I created the face texture from with me, but I don’t. It was basically just a square image, almost all brown, but with his face in the center.
I tried turning tiling off, but this didn’t seem to do anything. What other ways could I try to fix this? Let me know if you need more information.