1. 3D Computer Graphics - a Technical Introduction AKA 3D Graphics Programming ! By Praseed Pai K.T. http://praseedp.blogspot.com [email_address]

4. Part - 1 PIXELS !

8. Part 2 Transformation and Matrices

9. 2D Physical Co-ordinate System

11. Logical Co-ordinates

13. Part 3 Finally it's 3D Time

14. 3D Co-ordinate System – Are you on the Left or Right ?

15. 3D Transformation - Translation

16. 3D Transformation - Rotate

17. 3D Transform - Scale

18. 3D Viewing - Perspective

19. 3D viewing – Perspective Matrix

20. 3D viewing - Ortho

21. 3D viewing – Ortho Matrix

22. Primitives

23. Primitives ( contd.. )

24. Jim Kajiya and his Rendering Equation

25. Lights Please

26. Rendering A scene using Global illumination

28. How do i Light in a feasible manner?

30. Phong Lighting Model

31. Phong Lighting Model

35. Lights – Directional Light

36. Lights – Point Lights

37. Light – Spot Light

38. Images , so far ar synthetic .how do i add details ?

39. Texture Mapping - Adding Detail to the surface

40. Texture co-ordinates

42. Duo Who made PC a graphics Platform

43. Part 4 Procedural Techniques

45. Graphics Pipeline

46. Demo – Ambient Light Vertex Program //////////////////////// // // Vertex Program to Demonstrate Ambient Light // varying vec3 normal, lightDir; void main() { gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; }

47. Demo – Ambient Light Fragment Processor ////////////////// // Fragment Program for Ambient Light // // varying vec3 normal, lightDir; void main() { float intensity=0.2; vec4 color= vec4(1.0,1.0,0.0,0.0); gl_FragColor = color*intensity; }

48. Rasterizing Triangle using Shaders Vertex Shader void main() { gl_Position = ftransform(); }

49. Triangle – Fragment Shader uniform vec2 v0, v1, v2; ///////////////////////////////////// // // 2D cross product; // float crs(const vec2 u, const vec2 v) { return u.x * v.y - u.y * v.x; } ///////////////////////////////////// // Main routine test whether screen pixel is // within the triangle // void main() { vec2 p = gl_FragCoord.xy; if (crs(v1 - v0, p - v0) >= 0 && crs(v2 - v1, p - v1) >= 0 && crs(v0 - v2, p - v2) >= 0) gl_FragColor = vec4(1.0,0.0,0.0,0.0); else gl_FragColor = vec4(0.5); // gl_FragColor = vec4(1.0,0.0,0.0,0.0); }

51. Turner Whitted and his Rendering Technique