hi,
again me with a normal map problem
i have a char with seems (uvs delivered, mes delivered) I did some testing and soemhow the created normal map is generally inverted or has inversion at the seems.
I uses Multidisp 3 for normal maps, tries also Zmapper with maya best quality,
same result.
could this be a result of some UV problem?
This is inherent to tangent space normal maps. The math that drives them dictates that the normals flip when crossing UV seams. You’ll get this issue no matter what app you use to generate this type of map.
The only way to avoid the problem completely is to use an object space map instead. But that’s not possible for most projects.
If you have to use a tangent map, you should hide the UV seams as much as possible. This will prevent the issue from being seen. There is also a technique that you can use to try and fix the map after it’s been created. A tutorial is found here: http://www.zbrushcentral.com/zbc/showthread.php?t=56882
Ah great to know… That was actually the new approach
I had to try…
planar all that I need and kick the rest
but this is still not good…