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05_글로벌일루미네이션

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  • gi_demo.zip 다운 링크 깨졌네효.
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05_글로벌일루미네이션

  1. 1. Global Illumination : noerror@hitel.net : 2005.05.28
  2. 2. 1. Global Illumination Direct Illumination : Indirect Illumination : ,2
  3. 3. Global Illumination Technique Radiosity Photon Mapping3
  4. 4. Radiosity , , (no specular) 1984 ( )4
  5. 5. Radiosity Process Surface Substructuring Scene patch . Patch , .5
  6. 6. Radiosity Process Li = Lei+ BRDF(j) * Irradiance(Lj) Li Lei BRDF(j) j Lj j BRDF : Bidirectional Reflectance Distribution Function6
  7. 7. Radiosity Process Multi PASS Rendering ray . (1st pass) . .7
  8. 8. Radiosity . .( patch hemicube .. )8 .
  9. 9. Photon Mapping Photon : , , 19959
  10. 10. Photon Mapping Monte-Carlo Method , N 2 pass Photon Map Photon , Photon Map10
  11. 11. Photon Mapping Process 1 N Photon Photon Map . . Photon11
  12. 12. Photon Mapping Process Rusian Rulette 0.5 50% 50% 100% (k-d Tree)12
  13. 13. Photon Mapping Process 2 ray traicing photon .13
  14. 14. Global Illumination In Game , . . . GI ,14 .
  15. 15. 2. Radiosity Radiosity Inhouse => & => 1 Direct Illumination => Indirect Illumination15
  16. 16. Radiosity ASE (vertex face ) triangle Radiosity16
  17. 17. Radiosity basis vector . basis vector texture U,V17
  18. 18. Radiosity Direct Illumination . Indirect Illumination18
  19. 19. / http://digibath.com/repository/gi_demo.zip19
  20. 20. Radiosity Using Photon Maps http://www.cs.utah.edu/~bigler/research/photonmaps/photonmaps_g2.html Global Illumination http://atec.utdallas.edu/midori/Handouts/global_illumination.htm Overview of Photon Mapping http://www.ypoart.com/tutorials/Photon-Overview.htm Henrik Wann Jensen (photon mapping) http://graphics.ucsd.edu/~henrik/20 Radiosity Texture Generator http://www.dd.chalmers.se/~f97toed/radiosity/Report.htm

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