Commits on Mar 6, 2024

1. Add color82 to generalized_schlick_bsdf …

   This changelist adds a color82 input to the generalized_schlick_bsdf node in MaterialX, with a full implementation in hardware shading languages (GLSL/MSL/ESSL) and simple fallback behavior in closure-based shading languages (OSL/MDL).
   
   The real-time implementation is based on Naty Hoffman's generalization of Adobe Fresnel (https://renderwonk.com/publications/wp-generalization-adobe/gen-adobe.pdf), which is visually consistent with previous versions of generalized_schlick_bsdf when color82 is left at its default setting.

   

   jstone-lucasfilm committed Mar 6, 2024
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