Normals are used in shading, but also for particle systems, smoke simulations, texture inputs and so on.īut what are normals? Consider the following: A ray of light hits a surface. Normals are something you come across everywhere in computer graphics. If you are going solely for Blender and Cycles there is no need to use these options, as for openGL, but NVidias Direct X uses the Y channel as up so you need to exchange Y for Z.Ĭycles Encyclopedia Excerpt: The Truth About Normals There is a swizzle option you can use to flip axes.If you use a texture to influence the displacement of the material of the object you bake from, they will be taken into account by the baking. If you want to know where to use normal maps, please visit the Blender Internal version of baking normals tutorial. A few pointers that were not covered in the tutorial:
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