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20.2.1 Attenuation Factor
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20 Equations
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Perspective z-Coordinate Transformations
20.2 Lighting Equations
20.2.1 Attenuation Factor
20.2.2 Spotlight Effect
20.2.3 Ambient Term
20.2.4 Diffuse Term
20.2.5 Specular Term
20.2.6 Putting It All Together
