Problem with illumination after import

[Amras Sparta]

Ok, I will try to explain a bit what happened to reach this "bug"...

I'm using Maya Autodesk 2011 to vuild this meshes.
The right arm is a "Duplicate Special" with Y inverted to makeit on the opposite side of the avatar. 

The problems starts here, after first import, all the face normals of the right arm has reversed.
Selecting all the faces of that side, I revert back manually.

Ok, after second import, the face normals seems fine, but...Shadows are up? and lights down?

 

[Chosen Few]

Generally speaking, whenever you do a negative duplication, you should always reverse normals, freeze transformations, and delete history, immediately afterward.  Otherwise, your model will be inside out.  In some cases, you may also need to flip your UV map.

Next time, instead of negative duplication, you might want to use Maya's Mirror Geometry function.

[Yabusaka Loon]

Normals > Set to Face > Soften Edge (if necessary) might work?

[Amras Sparta]

The problem is... the model is not inside out, but the light seems like the faces are on the other side.

 

 Soften Edge doesn't work... at least for me.

[Masami Kuramoto]

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Amras Sparta wrote:

The problem is... the model is not inside out, but the light seems like the faces are on the other side.

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The vertex normals are inside out.

[Yabusaka Loon]

Sorry what I wanted to say was;

>Normals > Set Face

then

>Normals > Soften Edge