Update legacy OSL function

AcademySoftwareFoundation / MaterialX

MaterialX is an open standard for the exchange of rich material and look-development content across applications and renderers.

http://www.materialx.org/

Apache License 2.0

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Update legacy OSL function #1877

Closed jstone-lucasfilm closed 3 months ago

jstone-lucasfilm commented 3 months ago

This changelist updates the mx_oren_nayar_diffuse_bsdf function in the legacy OSL pathway, addressing a shader compilation issue when this option is enabled.