Physically-Based Shading at Disney

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$Background: Physics and Math of Shading - Self Shadow$

A Data-Driven Reflectance ModelMatusik et al.ACM Transactions on Graphics, 2003http://merl.com/brdfThe MERL 100©Disney Enterprises, Inc.Fortunately, the data set is available for free download for academic use.
github.com/wdas/brdfTo explore the data and compare with analytic models we developed a BRDF viewer and released it as open source. Thisscreenshot shows an approximate fit between an analytic model and a measured material.©Disney Enterprises, Inc.
Page 2 and 3: © Walt Disney PicturesTangled (201
Page 4 and 5: Outline• Motivation• Measured d
Page 6 and 7: Which shading model should we use?
Page 8 and 9: What makes a model physically-based
Page 13 and 14: github.com/wdas/brdfThe Theta D cur
Page 15 and 16: A schematic view of “Image Slice
Page 17 and 18: Measured data observations©Disney
Page 19 and 20: Diffuse retro-reflection is related
Page 21 and 22: Diffuse models©Disney Enterprises,
Page 23 and 24: Specular models don’t have long e
Page 25 and 26: Ground Glass DataTrowbridge-ReitzBe
Page 27 and 28: Generalized-Trowbridge-ReitzGTR =1G
Page 29 and 30: Albedo of various models smoothro
Page 31 and 32: Principles1. Intuitive rather than
Page 33 and 34: Parameters ©Disney Enterp
Page 35 and 36: Parameter layers©Disney Enterprise
Page 37 and 38: Look development• Simplified mate
Page 39 and 40: Future Work©Disney Enterprises, In
Page 41 and 42: In the course notes• Additional o

Physically-Based Shading at Disney

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