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Away3D 3.6 Cookbook by Michael Ivanov

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Generating light maps

Light map is a widely known technique in the 3D gaming industry. With the help of light maps, we can bake scene lights information such as shadows and illuminated areas right into the texture of a 3D object. Then you can replace completely or reduce to a minimum, the dynamic lighting in the scene with the light maps (what is actually done in many 3D games today), thus saving a lot of precious CPU cycles. Usually, in order to make a light map, a 3D package such as 3DsMax or Maya is used with built-in light map baking utilities. Not always generating a light map in these programs is easy and rapid especially for beginners. But here's some good news; Prefab allows you to bake light maps with no pain and all that in a matter ...

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