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Velvet aiStandardSurface shader preset, why is Specular Weight set to 0?

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giandosopaolo
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Velvet aiStandardSurface shader preset, why is Specular Weight set to 0?

Hi

I am trying to create a velvet material. I have some PBR maps from substance painter which I wanted to combine with the Sheen slider of the aiStandardSurface.

I noticed that the specular weight is set to 0 in the default "Velvet" shader preset of the aiStandardSurface.

Is that something I have to reproduce for a correct look? Why would specular be at 0 for a correct material? is that not something unrealistic?

Also, what I was thinking to do is to plug the default PBR maps in the usual slots and a brightened version of the base color map (passed thorugh an ai_grade or an ai_color correct node) in the sheen color. Would that be the correct way to proceed?

Thanks a ton

P

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lee_griggs
in reply to: giandosopaolo

I don't believe there is a specular component for velvet.

>Also, what I was thinking to do is to plug the default PBR maps in the usual slots and a brightened version of the base color map (passed thorugh an ai_grade or an ai_color correct node) in the sheen color. Would that be the correct way to proceed?

Hard to tell without images. Try it and post the results here.

Lee Griggs
Arnold rendering specialist
AUTODESK

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