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Few problems with BRDF using Beckmann and GGX/Trowbridge-Reitz distribution for comparison - Stack Overflow
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Arbitrarily tight bounds on cumulative distribution function of Beckmann distribution | Semantic Scholar
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CDF bounds of the Beckmann distribution and the CDF using numerical... | Download Scientific Diagram
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Validation of D(ωo) fitted by a single Beckmann distribution (fit) as... | Download Scientific Diagram
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