Fixing seams on AO map?

CJE

I'm having some trouble getting rid of seams on an AO map.

The map is rendered on a black background, and I've added some padding around the UV's, but I'm still getting black seams where the geometry is mirrored.

Is there any solid way to fix this?

PredatorGSR

Can you post an example? Sometimes you just have to paint out details on meshes with instanced or mirrored parts.

Mark Dygert

What app, Xnormal, Max, Maya?

If max or maya are you using Mental Ray AO or a custom light setup?

Are the mirroed shells stacked or did you offset all but one piece, one unit to the right, left, top or bottom?

Pics really help.

CJE

I baked only 1/2 the model in Max with basic light tracer/white material setup.

On the full model with stacked UV's, I get a seam on the mirrored edge, even with padding places around the UV's, there is no more space on the UV map to paint over.

EarthQuake

Yeah, do not do that. Bake the full model but offset the mirrored site exactly 1 unit in the uvs.

Deleting half of the mesh changes your mesh normals, so when you weld back the mirrored section, you'll get a seam.

disanski

EarthQuake wrote: »

Yeah, do not do that. Bake the full model but offset the mirrored site exactly 1 unit in the uvs.

Deleting half of the mesh changes your mesh normals, so when you weld back the mirrored section, you'll get a seam.

Ha now I know why I could not fix the seam on my previous model... Thanks

CJE

EarthQuake wrote: »

Yeah, do not do that. Bake the full model but offset the mirrored site exactly 1 unit in the uvs.

Deleting half of the mesh changes your mesh normals, so when you weld back the mirrored section, you'll get a seam.

Thanks for the tip, I'll try rebaking with that in mind!