James obrien page 7 of 16 6 here is a piece of mesh

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Unformatted text preview: is a piece of mesh. Draw the result of applying one iteration of Catmull-Clark subdivision. Then circle all vertices (both original and the new ones you added) that are extraordinary. Note: I am only interested in the topology of your answer. 7 points 7. Name a phenomenon that can be modeled easily using radiosity but that cannot be modeled with a basic ray-tracing algorithm. Give an example. 3 points 8. Briefly state why interpolating transformation matrices by linearly interpolating the matrix components is a bad idea. 4 points Final Exam CS 184: Foundations of Computer Graphics Fall 2009 Prof. James O’Brien page 8 of 16 9. Below are two 4x4 homogenized transformation matrices. What does the first one do? How does the effect produced by the second one differ from that produced by the first? 4 points Ⱥ3 Ⱥ Ⱥ0 Ⱥ0 Ⱥ Ⱥ0 0 3 0 0 0 0 3 0 0Ⱥ Ⱥ 0Ⱥ 0Ⱥ Ⱥ 6Ⱥ Ⱥ6 Ⱥ Ⱥ0 Ⱥ0 Ⱥ Ⱥ0 0 6 0 0 0 0 6 0 0Ⱥ Ⱥ 0Ⱥ 0Ⱥ Ⱥ 2Ⱥ The first one will: € € The second one will: 10. Draw the convex hull o...
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