11 th Lecture :: Graphics Pipeline

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1 Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 1/36 [CS7031] Graphics and Console Hardware and Real-time Rendering 11 th Lecture :: Graphics Pipeline Dr. Michael Manzke Trinity College Dublin

2 Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 2/36 The Graphics Pipeline Defining the graphics architecture The graphics pipeline Computation and bandwidth requirement

3 Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 3/36 Graphics Systems and Libraries Declarative (What, not How) Describe the scene For example: virtual camera Systems: RenderMan scene description Inventor and Performer scene graphs Imperative (How, not What) Generate a sequence of drawing commands For example: load model-view matrix Systems: OpenGL PostScript and Xlib

4 Drawing Commands Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 4/36

5 OpenGL Architecture Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 5/36

6 Modern Graphics Pipeline Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 6/36

7 Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 7/36 Application Simulation Input event handlers Modify data structures Database traversal Primitive generation Utility functions

8 Command Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 8/36

9 Geometry Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 9/36

10 Geometry Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 10/36

11 Rasterisation Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 11/36

12 Texture Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 12/36

13 Fragment Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 13/36

14 Fragment Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 14/36

15 Display Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 15/36

16 Graphics Pipeline Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 16/36

17 Graphics Pipeline Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 17/36

18 Functionality vs. Frequency Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 18/36

19 Evolution of the Graphics Pipeline Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 19/36

20 Computational Requirements Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 20/36

21 Computational Requirements Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 21/36

22 Computational Requirements Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 22/36

23 Computational Requirements Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 23/36

24 Computational Requirements Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 24/36

25 Computational Requirements Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 25/36

26 Communication Requirements Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 26/36

27 Graphics State or Context Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 27/36

28 Graphics State Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 28/36

29 Comparison Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 29/36

30 Direct3D 10 Pipiline Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 30/36

31 Triangle and line segment Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 31/36

32 Storage Data Types Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 32/36

33 Programmable Core Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 33/36

34 System Layering Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 34/36

35 Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 35/36 References [OG97] Marc Olano and Trey Greer. Triangle scan conversion using 2d homogeneous coordinates. In HWWS 97: Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware, pages 89 95, New York, NY, USA, ACM. [LJ99] Eugene Lapidous and Guofang Jiao. Optimal depth buffer for low-cost graphics hardware. In HWWS 99: Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware, pages 67 73, New York, NY, USA, ACM.

36 Dr. Michael Manzke :: CS7031 :: 11 th Lecture :: Graphics Pipeline :: December 20, 2010 p. 36/36 References [AS06] Kurt Akeley and Jonathan Su. Minimum triangle separation for correct z-buffer occlusion. In GH 06: Proceedings of the 21st ACM SIGGRAPH/Eurographics symposium on Graphics hardware, pages 27 30, New York, NY, USA, ACM.

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