Tuesday, March 4, 2014

Normal Mapping

After a bit of a hiatus I have implemented normal mapping! Normal mapping is a technique used for faking the lighting of bumps, dents, etc without having to actually modify any actual geometry. A "normal map" texture is applied to an object where each pixel in the texture represents a perturbation of a normal. These are used to modify the normals on the object's surface and are used when shading calculations are performed.


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