quiz_1 - 6.837 Introduction to Computer Graphics Quiz 1:...

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6.837 Introduction to Computer Graphics Quiz 1: Ray Tracing Tuesday October 7, 2003 2:40-4pm One hand-written sheet allowed Total is 50 points Name: 1 Ray Tracing [ /14] 1.1 Complexity [ /3] We want to render a scene of N objects with one single light source onto an image of M pixels (the image resolution is M M ). Any object can be reflective and refractive, but we enforce a maximum recursion depth of K . What is the worst-case complexity of ray tracing for the total image? 1.2 Light sources [ /2] How is this complexity changed when we have L light sources? 1.3 Forward ray tracing [ /3] Give a 1-to-2-sentence explanation of why forward ray tracing is not directly practical. 1
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1.4 What is the bug that caused the artifacts in this image? [ /3] 1.5 Which sphere has the bigger index of refraction? [ /3] 2
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2 Transformations [ /6] 2.1 Matrix form [ /3] What is the 4 × 4 matrix in homogeneous coordinate form corresponding to a 3D translation by (a
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This note was uploaded on 12/14/2011 for the course EECS 6.837 taught by Professor Durand during the Fall '03 term at MIT.

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quiz_1 - 6.837 Introduction to Computer Graphics Quiz 1:...

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