Hi. Is this formula more corrected for Velvet cloth shading than Ashikhmin-Shirley method which is already implemented on Cycles’s Velvet BSDF?
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I’m confused which code lines for what in this closure file?
https://developer.blender.org/diffusion/B/browse/master/intern/cycles/kernel/closure/bsdf_ashikhmin_shirley.h
Am I can replace with CharlieD formulas this previous code lines or need to edit other files too?
It’s a different file:
https://developer.blender.org/diffusion/B/browse/master/intern/cycles/kernel/closure/bsdf_ashikhmin_velvet.h
And the paper also mentions how to implement the G term and terminator softening.
It’s not a matter of simply replacing some lines, you have to understand what the code is doing.
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