midterm2008

# midterm2008 - 2008 4 24 1 2 Discuss pros and cons of raster...

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컴퓨터 그래픽스 중간고사 ( 담당교수 신영길 ) 2008. 4. 24 1. Discuss pros and cons of raster graphics compared with vector graphics. [5pt] 2. Frame buffers are described as having a certain depth. What does the depth refer? What is stored in the frame buffer when a color map lookup table is used? [5pt] 3. For a line segment that starts from (0, 1) and ends at (2, 4). Its equation is given by 3x 2y + 2 = 0. To use Bresenham s line drawing algorithm on this line, show the steps for three consecutive points from (0,1). [10pt] 4. Compare supersampling and A-buffer for antialiasing. [5pt] 5. Define the Nyquist limit. Why it is important for sampling? [5pt] 6. Calculate a 4x4 matrix that aligns a line from [0, 0, 0] to [1, 1, 1] to z-axis. Show your work using an orthogonal matrix. [10pt] 7. Complete the following normalizing transformation sequence for oblique parallel projections. [10pt] A. translate VRP to the origin of the WC B. ___________________________________ C.

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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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midterm2008 - 2008 4 24 1 2 Discuss pros and cons of raster...

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