Im not sure if this is an issue on the Mudbox side or Maya/vray side. Here’s the workflow:
Exported mesh from maya 2013 as obj with no UVs
Converted and painted PTex paint layer in Mudbox 2014
exported as 8 bit ptex
applied vray_Ptex shader
Default vray render settings
the ptex renders fine but with no color. Manually changing the RGB channel values in the ptex shader has an effect but i have no idea which values are correct.
Am I missing a step somewhere?
you say ptex is rendering fine…?
whats the problem now…?
is only the displacement map working…?
Theres no displacment map at the moment. Its just a simple teapot with some scribbles on it to get a feel for how it all works. The problem is there is no color, its as if its only rendering the luminance.
Below is a side by side of the vray render on the left and the mudbox viewport on the right:
As you can see only the luminance information is shown, no rgb.
I hate to dig up an old thread but I wanted to post the answer to my original problem.
This video solved it for me
http://www.youtube.com/watch?v=xKBJDxM5jus
All you have to do is manually set the color channels on the ptex node to:
Red = 0
Green = 1
Blue = 2
The colors on the ptex file should then render as they should.
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