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MaterialX: implement view-dependent coat absorption #233

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portsmouth opened this issue Aug 29, 2024 · 0 comments
Open

MaterialX: implement view-dependent coat absorption #233

portsmouth opened this issue Aug 29, 2024 · 0 comments

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@portsmouth
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portsmouth commented Aug 29, 2024 •
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This effect described in the spec, which makes the absorption color of the coat more "contrasty" is missing from the MaterialX implementation.

image

The Arnold implementation for reference looks as follows (for coat_ior=1.3):

Without With
Smooth 734_openpbr_old_coat_smooth 734_openpbr_new_coat_smooth
Rough 734_openpbr_old_coat_rough 734_openpbr_new_coat_rough

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