dark patches along segments of texture

Gail_Blitzy

Hello all,

When I have my model in Maya or 3Ds Max I have no discrepancies or problems along the UV islands on my model.

But when I bring the model into Unity I get these funny dark shadows along the seams.
I was wondering if anyone has encountered this problem before or could give me any ideas how to get around it?

SanderDL

I think your normal map needs it's green channel inverted. Or the normalmap is not imported correctly. Make sure you have the texture imported as normal map in Unity. I hope that fixes the problem.

Gail_Blitzy

Thanks SanderDL,
It seemed to be a combination of the two, changed the texture to normal and inverted the green channel.

it's worked brilliantly on the legs but i still got a seam down the middle, any thoughts?

SanderDL

I'm not sure but it could be that the mirrored UV's on one side are inverted.
If that's not it, I don't really know. Mirrored UV's and normal maps are always a bitch.

Novian

For mirrored UV shells and normal maps you need to offset all mirrored or duplicated parts by 1 UV area. In max I know how to do it but not in maya. Try that. Offset one leg by 1.0 in either +U, -U, +V, or -V.

Cheers~