Normals face correctly, but lit reversed

Question

I have a character model that was modelled and animated in maya. It used to have some normals that were facing wrongly.

After reversing them and reimporting, those same normals that were fixed are now lit from the backface even though they are now facing correctly.

Turning off 2 sided lighting in Maya and turning on backface lighting on the FBX, it appears that there is no problem with the model as it is lit properly there.

Does anyone have any insights as to how to fix it? reverse lit

Answer 1

Answer by Kerihobo · Dec 21, 2014 at 08:08 PM

hey cheers for reply, I did a bit more investigation and unfortunately I wasn't able to find a solution for the problem in Maya, but I did find a solution in Unity.

You can tell unity to either import normal/tangent information from your fbx file, OR you can tell it to calculate the average normal angle on it's own, which worked well for me with these settings:

alt text

A much better result on my character model

alt text

untitled-2.jpg (82.8 kB)

untitled-1.jpg (151.6 kB)

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Normals face correctly, but lit reversed

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