CS335
Fall, 2008
Homework 7 (20 points)
Due: November 13, 2008 (Thursday)

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1. (Subdivision)
   It was shown in class that by performing a mid-point subdivision
   on the control points of a cubic Bezier curve segment, we split the
   curve into two segments, each with its own control points. Why is the
   mid-point subdivision technique important? (explain to me its
   application in Bezier curve rendering and curve intersection point
   computation) (10 points)

1. (Forward Differencing)
   Using forward differencing technique to render a cubic
   polynomial curve, one only needs three additions for each point.
   By far, this is the most efficient way to render a cubic polynomial
   curve. But this technique has a problem. What is it and why?
   (10 points)


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Put you solution set in a text file  and send the text file to your
grader (xuwei.liang@uky.edu) before midnight of the due day.

           CS535 (Fall 2008)
           Solution of Homework 7
           Due: 11/13/08
           Name: xxxxxx xxxxxx