point-based method - Pixar Graphics Technologies

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Compute global illum at a <strong>point</strong> • Multiply all raster pixel colors by reflectance function (BRDF); add • Result is diffuse / glossy reflection at <strong>point</strong>
Global illumination result direct illum (9 sec) direct illum + diffuse GI + glossy GI (21 sec)
Page 1 and 2: Point-Based Global Illumination for
Page 3 and 4: Related work • Method is inspired
Page 5 and 6: Point-based global illumination •
Page 7 and 8: Generate point cloud • Render dir
Page 9 and 10: Organize points into octree • Org
Page 11 and 12: Compute global illum at a point •
Page 13: Compute global illum at a point •
Page 17 and 18: Use in movies • Pirates of the Ca
Page 19 and 20: ILM: Davy Jones “Pirates of the C
Page 21 and 22: “Up” example without global ill
Page 23 and 24: “Up” example without global ill
Page 25 and 26: “Toy Story 3” examples
Page 31 and 32: Variations and extensions • Area
Page 33 and 34: Area light sources + soft shadows a
Page 35 and 36: Multiple light bounces • Run the
Page 37 and 38: Final gather for photon mapping dir
Page 39 and 40: Ambient occlusion • Generate poin
Page 41 and 42: Ambient occlusion (and reflections)
Page 43 and 44: NEW: Image-based relighting
Page 45 and 46: Global illumination in volumes •
Page 47 and 48: Optimization: interpolation • If
Page 49 and 50: Parallel computation • Global ill
Page 51 and 52: Summary • Point-based diffuse and
Page 53 and 54: What’s next? • Implementation i
Page 55: Questions?

point-based method - Pixar Graphics Technologies

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