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nitramssirc

Interpolating Normals

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I am wanting to find the surface normal of any posistion on my map given the x,z posistion and the vertex normals of the surface. What is the best way to find a weighted average of the vertex normals surrounding the given point?

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Do a lerp of the surrounding normals, weighted by the distance to the specific normals. Then normalize that lerped value.

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