Lecture 17: slide

Interactive Computer Graphics: A Top-Down Approach Using OpenGL (4th Edition)

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1 ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Advanced Graphics Lab Class 17 October 18, 2007 ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 17 – October 18, 2007 Announcements ± Return the exam ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 17 – October 18, 2007 Exam grade distributions 0 1 2 3 4 5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 17 – October 18, 2007 4 Pete Rogina Worldscape Friday, October 19, 2007 ME 208 at noon “Immersive Experiential Content: Hologram to Holodeck” ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 17 – October 18, 2007 Announcements ± Return the exam ± GFX Café ± After class, short Q/A for hw3 ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 17 – October 18, 2007 Perspective-correct interpolation perspective correct perspective incorrect
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2 ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 17 – October 18, 2007 Perspective-correct interpolation ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 17 – October 18, 2007 Solution ± Project all interpolants first by dividing by w ± Interpolate interpolants as well as 1/w ± Get original value back by multiplying by interpolated w ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 17 – October 18, 2007 Once fragments are rasterized ± They can be shaded (colored) ± Texture mapping ± Fragment program ± Etc. ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 17 – October 18, 2007 Framebuffer operations ± Framebuffer is essentially a large memory array to store the color, depth, stencil data ± Initial framebuffers (circa 1975) were very small (e.g. Evans and Sutherland) ±
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This note was uploaded on 01/30/2008 for the course ECE 433 taught by Professor Sen during the Fall '07 term at New Mexico.

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Lecture 17: slide - Announcements ECE/CS 433 Introduction...

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