Mitchell-ShadingInValvesSourceEngine

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‣ Improvements toirradiance volumesampling‣ Shadow Mapping‣ Foliage Rendering‣ Soft Particles‣ Non-Photorealisticrendering in TeamFortress 2Future Directions
‣ World Lighting• Radiosity Normal Mapping• Specular Lighting‣ Model lighting• Irradiance Volume• Half-Lambert• Phong terms‣ High Dynamic Range Rendering• Tone mapping• Autoexposure‣ Color CorrectionConclusion
Page 1:
Shading in Valve’s Source EngineS
Page 5:
Marketplace ContextSee full survey
Page 8:
Radiosity lighting
Page 11 and 12:
Basis for Radiosity Normal Mapping
Page 13 and 14: At the pixel level. . .‣ Sample t
Page 15 and 16: Variable Luxel DensityCoarser light
Page 18 and 19: Environment probesplaced in Level E
Page 20 and 21: Diffuse Lighting Only
Page 23 and 24: Other World Lighting‣ There are a
Page 25 and 26: ‣ Typically clampN·L to zero at
Page 27 and 28: Ambient Cube‣ Pre-compute irradia
Page 29 and 30: Comparison of Ambient Cube to Spher
Page 31: Benefits of Half Lambert and Ambien
Page 36 and 37: ‣ Compute Phong termsfor up to tw
Page 40 and 41: High Dynamic RangeRendering in theS
Page 43 and 44: Scene from Lost Coast at Multiple E
Page 45 and 46: Authored Sources of HDR Illuminatio
Page 48: Tone Mapping‣ Very careful with l
Page 51 and 52: Another bucket from the running his
Page 53 and 54: Float vs. Integer HDR Tradeoffs‣
Page 55 and 56: Half Life 2: Episode 1
Page 57 and 58: Team Fortress 2: NPR + HDR!
Page 59 and 60: Team Fortress 2: NPR + HDR!
Page 61 and 62: Color Correction‣ Color has been
Page 63: DesaturationOriginal ImageDesaturat
Page 67 and 68: Acknowledgements‣ Many thanks to
Page 69: Questions?Valve is Hiring!jobs@valv
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Mitchell-ShadingInValvesSourceEngine

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