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A𝛿: Autodiff for Discontinuous Programs — Applied to Shaders
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Technical Paper
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Research & Education
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Virtual
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DescriptionThis paper describes a compiler-based framework that extends reverse mode automatic differentiation so as to provide accurate gradients for arbitrary programs, even at discontinuities. We demonstrate the effectiveness of this framework in the context of optimizing parameters of 2D/3D procedural shader programs so that they match target illustrations.