CS250 Final Exam

# CS250 Final Exam - CS250 Final Exam 1 True or False If the X and Y-axes of a right-handed Cartesian coordinate system are oriented in

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CS250 Final Exam 1. True or False : If the X- and Y-axes of a right-handed Cartesian coordinate system are oriented in directions (-1,0,0) and (0,1,0), respectively, the Z-axis is oriented in direction (0,0,1). 2. True or False : Arbitrary combinations of rotation , scale , and translation transforms represent affine transforms. 3. True or False : Arbitrary combinations of rotation, scale , and translation transforms represent rigid body transforms. 4. True or False : One effect of using perspective projection transform is that the computed NDC frame depth value varies linearly with input view frame y value. 5. True or False : One effect of using depth-buffer (DB) algorithm is that polygons can be rendered in any order. 6. True or False : One effect of using orthographic projection transform is that the computed NDC frame depth value does not vary linearly with input view frame y value. 7. True or False : In the three-dimensional viewing pipeline, one clips objects to the view volume before applying the perspective projection transform to the object. 8. Given that one of the reasons for the popularity of the depth-buffer (DB) algorithm is that polygons can be rendered in any order, which of the following statements is correct: a. DB algorithm is more optimal is polygons are rasterized in a back-to-front order. b. DB algorithm is more optimal if polygons are rasterized in a front-to-back order. c. None of the above. 9. The best solution to improve screen space depth resolution in a three-dimensional graphics pipe is to move the a. Near clip plane towards the center of projection. b. Near clip plane away from the center of projection. c. Far clip plane towards the center of projection. d. Far clip plane away from the center of projection. e. None of the above. 10. True or False : Let the rectangle -1≤ x ≤1, -1≤ z ≤1 define the window (to the world) on a view plane coincides with the XZ-plane. Point P =( , , ) 52 2 0 is visible when using

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perspective projection with center of projection (0,-1,0) and the far clip plane located infinitely far away. 11. Consider the implementation of a first-person camera using spherical coordinates.
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## This test prep was uploaded on 04/18/2008 for the course CS 250 taught by Professor Ghali during the Spring '07 term at DigiPen Institute of Technology.

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CS250 Final Exam - CS250 Final Exam 1 True or False If the X and Y-axes of a right-handed Cartesian coordinate system are oriented in

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