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Presentation transcript:

School of Computer Science Computer Graphics School of Computer Science University of Seoul Minho Kim

OpenGL

3D Graphics API What do we want? Portability, performance, flexibility, extendability, etc. How would you design it? Objects description Camera types Lighting models Rendering algorithms

OpenGL Open Graphics Library http://www.opengl.org/about/overview/ “The Design of the OpenGL Graphics Interface” (1994) Currently managed by Khronos group

OpenGL Graphics pipeline Low level (not descriptive) GLU, GLUT Primitives: triangles, lines, points States / modes Matrix stacks to manage hierarchical structure Blinn-Phong shading model for lighting

OpenGL graphics pipeline (image courtesy of Joe Groff)

Resources http://www.opengl.org “An intro to modern OpenGL” by Joe Groff http://www.opengl.org/wiki OpenGL Tutor by Nate Robin The red book (free for ver.1.1)

The Red Book (ver. 1.1) Chapter 1. Introduction to OpenGL Chapter 2. State Management and Drawing Geometric Objects Chapter 3. Viewing Chapter 4. Color Chapter 5. Lighting Chapter 6. Blending, Antialiasing, Fog, and Polygon Offset Chapter 7. Display Lists → obsolete Chapter 8. Drawing Pixels, Bitmaps, Fonts, and Images Chapter 9. Texture Mapping Chapter 10. The Framebuffer Chapter 11. Tessellators and Quadrics Chapter 12. Evaluators and NURBS Chapter 13. Selection and Feedback Chapter 14. Now That You Know