Author Topic: How to create silk using physical Material.  (Read 1064 times)

2021-11-11, 21:29:38

mascab

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Hi,
I need to create a kind of silk that changes color on the edges. Also the color of reflection changes with the angle of view.
I'd like to use physical material and sheen channel, but I have a problem with ior.
Using legacy material, I usually made silk starting from an IOR value in reflection between 5 and 6; not too high to get a metal result, but far from 3, that is the maximum in physical material.
Is there a way to achieve a similar result using physical material?
I tried to find examples/tutorial on the net, but I can't find any silk done using physical material, only using legagy; the one in the library material is made starting from legacy material too.
Thanks.

2021-11-12, 14:34:53
Reply #1

Beanzvision

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Hi, do you have a real-world example you can share? There are many types/looks of silk. I found this on Google and tried to recreate it as best I could. The material is attached below.

Reference:


Corona:

2021-11-12, 18:44:05
Reply #2

mascab

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Hi,
thanks a lot for your reply!
I took a look at your example, and this is, less or more, the result that I had in mind, but I can't use a metal mode because I need to use diffuse map from real sample.
With metal mode, I lose control on material because reflection are too dominant and I will get a different result in every different scene.
Look at examples; this is your material in different scenes and metal mode makes it too different.

2021-11-12, 20:07:41
Reply #3

davetwo

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There is a silk material in the Corona material library. You can easily adjust the colours of that in the mixture shader. This already gives you the 2 colour effect.

If this is still too subtle, then I'd add a coloured fresnel texture into the clearcoat layer. That should give you the effect you want.

See the screengrabs below.

2021-11-12, 20:31:15
Reply #4

mascab

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Nice result!  I didn't think at clearcoat!
In my material library, fabric silk is made with legacy material, not with physical... should I download it again?
Could you upload it, please?

2021-11-24, 10:10:17
Reply #5

rojharris

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The library material is legacy but just go to 'advanced>convert' to make it physical and give you a good starting point. I might be wrong but I think that's what's been done here?