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rajesh_nest

Normals for lighting

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When I attempt to lit the mesh after filling holes, there were several black spots. All of them at the hole filled regions.
I understand that it is because of incorrect surface normal computation.

How to correct this issue?

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Depending on how you provide the data. If the normals are generated automatically from the surface topology there is the possibility that the filled-in polygons are given in a wrong order. Otherwise you have to calculate the normals on your own.

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