So, now that you know what normal maps are, let’s talk about
how to generate one. It’s really not much different from gen-
erating a high-poly model. You just have to keep a few things
The following surface is two triangles, or one polygon. It’s
a perfectly flat surface with four textures on it. These are dif-
fuse, specular, emissive, and of course, normal map.
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