final2008 - ( ) 2008. 6. 5 1. What effects are lost in...

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컴퓨터 그래픽스 기말고사 ( 담당교수 신영길 ) 2008. 6. 5 1. What effects are lost in Phong illumination when the light source and the viewer infinitely far away from the scene? 2. Discuss two effects that are missed by Phong illumination and interpolation that are captured by ray-tracing. 3. Describe the Z-buffer algorithm. For what type of scenes Z-buffer does not perform well? 4. Describe the role of the focal length for perspective projection in the pin hole camera model. 5. Describe one approach for computing shadows. 6. Explain what a uniform cubic B-spline curve is, and what basis functions are. You may simply state the important properties and sketch a plot. 7. Explain how to compute piecewise-linear approximation to the spline curve using subdivision. 8. Complete the comparison table of cubic curve models. Hermite Bezier Uniform B-Spline Nonuniform B-Spline Convex hull defined by control points Perspective transformation invariant Continuities inherent in
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This note was uploaded on 04/29/2010 for the course CSE 4190.411 taught by Professor Shinyeonggil during the Fall '08 term at Seoul National.

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final2008 - ( ) 2008. 6. 5 1. What effects are lost in...

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