UV Texture Coordinate Problem

ianammo · Post by **ianammo** » Tue May 22, 2007 9:57 pm

I was setting up a scene with diffuse material blended with a null material (as a transparency map) and kept getting visible edges for the transparent material (as high-lighted - head.png)

Set up a simple scene to figure out, and it appears that on UV texture, the V=0 is picking the same as V=1. In uv_edge.png left model shows phantom edge, right model (diffuse blend from red to white) shows a thin red line on the V=0 edge.

Changing V to slightly larger (0.001) fixes, but on a pre-UV-mapped object, fixing would be a nightmare....

Otherwise, love the program - it just keeps getting better.... (long time reader, first time poster...)

Post by **fused** » Tue May 22, 2007 10:01 pm

same problem here...

well i thought it was my mistake.. whatever

and: WOW

Kram1032 · Post by **Kram1032** » Wed May 23, 2007 2:00 am

great female model

manitwo · Post by **manitwo** » Wed May 23, 2007 8:48 am

omg - shes sooo beautiful.
please tilt the cam a little bit downwards

ianammo · Post by **ianammo** » Wed May 23, 2007 10:02 am

Manitwo - In the full image, you don't need to tilt the camera down - I might have to give her some clothes before I post the final image

manitwo · Post by **manitwo** » Wed May 23, 2007 10:11 am

ianammo wrote:I might have to give her some clothes before I post the final image

if you'd ask me thats not neccessary

StompinTom · Post by **StompinTom** » Wed May 23, 2007 12:28 pm

clothes shmothes. clothes are a human invention.

ianammo · Post by **ianammo** » Fri May 25, 2007 9:59 pm

Well, I wrote a quick and nasty program to move the uv coordinates in my .obj file... I had to push anything between 0 and 0.05 up before the edge started to go away. I assume this would be dependant on texture map resolution, which makes it harder to work around...

Also, how about some different UV mapping options, rather than just repeating:
- Clamped: u <0 use u=0, u>1 use u=1, same for v
- Decal: when u and v between 0 and 1 inclusive, use texture, otherwise use diffuse colour from material definition.

Thanks.