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About the Cover: The Nalu character was created by the NVIDIA Demo Team to showcase the rendering power of the GeForce 6800 GPU. The demo shows off advanced hair shading and shadowing algorithms, as well as iridescence and bioluminescence. Soft shafts of light from the water surface are blocked by her body, and her skin is lit by the light refracted through the water’s surface, with her body and hair casting soft shadows on her as she swims.

Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and Addison-Wesley was aware of a trademark claim, the designations have been printed with initial capital letters or in all capitals.

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