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 18 October 23, 2007 ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 23 – October 23, 2007 Announcements Homework 3 is due Sunday ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 23 – October 23, 2007 Halo3 Party November 9 (tentatively 9pm – midnight) ARTS Lab Prizes, fun! Brought to you by ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 23 – October 23, 2007 Last time Started talking about texture mapping ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 23 – October 23, 2007 Today Texture mapping revisited OpenGL vs DirectX ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 23 – October 23, 2007 Texture filtering Screen space samples are closer together than texture samples (magnification) – OpenGL provides two reconstruction filters: GL_NEAREST, GL_LINEAR Screen space samples are farther apart than texture samples (minification) – Summed area tables – Mipmapping
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