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Character Animation with Direct3D® by Carl Granberg

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Creating Normal Maps

Here’s a short section about how normal maps are created—something which in itself is a bit of a science. The process needs two things: the low-polygon mesh you intend to use in the game and a high-polygon mesh having all that extra detail. Figure 12.8 shows the two meshes needed to create a normal map.

Figure 12.8. Meshes needed to create a normal map.

You are already familiar with the low-polygon mesh. It may have a strict polygon limit (and other restrictions) depending on whatever game requirements you may have. The high-polygon mesh, however, has no theoretical upper limit on the amount of polygons, and it can have ...

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