Intensity Function

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Intensity Function

• IE Emitted Intensity
• KA, KD, Ks Ambient/Diffuse/Specular reflection
  coefficient
• IAL Ambient-light Intensity
• N Unit normal vector
• Li Unit direction vector to the ith point
  light source from a position on the surface
• Ii the intensity of the ith point light source
• V Unit viewing direction vector
• R Specular-reflection direction vector

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• Reduce Mach-bands effect

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T-vertex a vertex that lies along an edge of a
polygon, but is not a vertex of that polygon
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