Blizzard style "half" textures

Michael_Ingrassia

Hey guys,
I've always textured game assets with both sides (both hands & feet, both sides of face). I'm wanting to try a few assets on texturing just one half like Blizzard does but getting weird issues in Unity as expected. Can anyone point me to a tutorial on the asset shader setup/engine process. I cant seem to locate any for some reason.

Scruples

I don't understand, I think we're going to need to see a picture of the issues.

Zack Maxwell

...You mean mirrored UVs? They aren't working in Unity?

JedTheKrampus

They've always worked for me in almost any game engine with almost no fiddling...

Michael_Ingrassia

Yeah mirrored uvs. So you dont have issues with the normals being inverted? Or is there a check box on the shader. Actually im not the one using Unity but got an error emailed to me. Maybe you guys can just tell me if I'm missing a step.
1) have half an asset uvd and textured with normal map
2) mirror the mesh. Mirror the uv and overlay on the first half.
3) merge verts into one mesh
4) setup basic shader in unity.

so no flipping the green channel or anything special needed?

Eric Chadwick

Mirroring has to be done before baking, and the overlapped uvs should be moved over 1 uv unit. We have more info here on our wiki:
http://wiki.polycount.com/wiki/Normal_Map_Modeling#Mirroring

Michael_Ingrassia

Got it. Thanks for the info. It was moving the uv 1 unit I was missing.