1. When Shaders & TexturesCollide Kevin Bjorke NVIDIA Corporation

2. Everybody Wants More

3.  …and Moore’s Law can’t keep up

4. Next Gen, New Challenges  “If you think you are good enough you have just started your decline.”  Simply layering-on more lights or per- pixel lighting doesn’t automatically enhance game play  What is “Next-Gen Done Right”? http://developer.nvidia.com

5. Painters & Hackers  “Art does not reproduce the visible; it makes things visible” – Paul Klee New Harmony, 1936

6. Painters & Hackers  “Art does not reproduce the visible; it makes things visible” – Paul Klee New Harmony, 1936  “A videogame is not Art” – Hideo Kojima

7. Anything Can Be Painted  Painting is direct  Painting can influence programs, but in hidden ways that may be difficult to visualize  Downside: Scales Poorly

8. Anything Can Be Programmed  Programming is indirect  Imagery is often the result of abstract ideas, with little direct control  Downside: programmer art

9. Great Technical Artists

10. Shaping the Subjective Experience  Every pixel has the potential and the obligation to be a deliberate choice. © Epic Games

11. Why We MIP

13. Stage Makeup = LOD Makeup example courtesy Tara Maginnis, http://www.costumes.org

14. Stage Makeup = LOD Makeup example courtesy Tara Maginnis, http://www.costumes.org

15. Sharpening on MIP levels

16. Which Size is the Right Size?  UVDetective.fx DEMO

17. The Evils Charts Can Do  Texture Atlases and charts let us remap any 3D shape to a group of 2D shapes

18. The Evils Charts Can Do  Texture Atlases and charts let us remap any 3D shape to a group of 2D shapes

19. Making Do with Charts  The evil you see versus the evil you don’t see

21. Normals from Bumps

23. MIPs and Normal Maps

32. Best Practices: Normal Maps  Common, Complex, & Wrong:

33. Best Practices: Normal Maps  Common, Complex, & Wrong:

34. Best Practices: Normal Maps  Common, Complex, & Wrong:  Easier, Better:

35. Color & Depth

36.  “Facing Ratio”: (N·V) C = lerp(mossColor, texColor, pow(dot(N,V)),expon))

37. Color & Depth  “Facing Ratio”: (N·V) C = lerp(mossColor, texColor, pow(dot(N,V)),expon))

39. Texture Scripts in Photoshop™  “Mipster” DEMO

40. Text Mips

41. Gratuitous Equation Alert!

42. Filtering/AA Lighting

43. The Toksvig Factor  No sparklies at the edges!  Need to choose a fixed phong exponent  http://developer.nvidia.com/object/mipmapping_normal_maps.html DEMO

44. Nightfall – color control

46. Painting a Shader  1D & 2D functions

47. Painting a Shader  1D & 2D functions

48. Two Pictures = One BRDF +=

49. DEMO

50. Providing Sensible Controls  The most harmonious circumstance comes when these worlds intermesh  Everything really great that any of us have done has been the result of teamwork  Texture and Shading are both about color control J. Itten, Die Begegnung, 1916

51. Brdf_paint  Let artists paint the BRDF directly… DEMO

52. Hair Functions  Use Kajiya-kay.fxh, or… roll your own! GrayscaleColor DEMO Hair direction is… a normal map!

53. Directional Painting

55. Even More Abstract Textures  Textures as animation channels  Textures to guide particle animation/ image flow  Etc…. SLIDE IN PROGRESS

56. Shading to Look Like Painting  Anime Shadow Technique Reice with Rounded “Hand-Drawn” Shadow Shading “Reice” courtesy Han dae Hoon, Graphic Factory, Korea

57. Render Color and Normals RGBRaw Surface Normals

58. Blur the Normals Blur Pass 1: HorizontalBlur Pass 2: Vertical (and optional clip to show form)

59. Composite  Hard cutoff on blurred normals = “round shadow” Reice with Final rounded shadow outline DEMO

60. Pushing Forward  You progress not through what has been done, but reaching towards what has yet to be done – Kahlil Ghibran

61. Pushing Forward  You progress not through what has been done, but reaching towards what has yet to be done – Kahlil Ghibran  The market only rewards innovation – Gopal Solanki

62. Resources  http://developer.nvidia.com  GPU Gems series  kbjorke@nvidia.com