Exercises Chapter 13

1. Suppose that there is a point light source at (0.5,-2.5,4.5). The light source is pure white, and there is a background ambient light of (R,G,B) = (0.1,0.1,0.1). The reflection coefficients for the polygon surface are:
ambient: (R,G,B) = (0.1,0.1,0.1)
diffuse: (R,G,B) = (1,1,0)
Find an expression for the (R,G,B) intensity for the centre of this polygon.
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Last modified: Tue Oct 02 09:34:35 GMT Daylight Time 2001