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Tyler Furreboe avatar image
Tyler Furreboe asked ·

Arnold 5.2.0.0 SDK Sheen Bug

It appears sheen will not render through the Standard Surface Shader, is there any extra setup necessary to have this render? It works in Maya, but will not render from the SDK.

renderarnold5standard surface
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Stephen Blair avatar image
Stephen Blair answered ·

standard_surface.sheen is not set, so the sheen weight defaults to 0

kick -info standard_surface.sheen
 node: standard_surface  param: sheen  type: FLOAT  default: 0

Try with standard_surface.sheen 1

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Stephen Blair avatar image
Stephen Blair answered ·

kick -info standard_surface is the definitive reference for built-in parameters

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Tyler Furreboe avatar image
Tyler Furreboe answered ·

@Stephen Blair can confirm changing `sheen_weight` to `sheen` worked, not entirely sure what the purpose of `sheen_weight` is though. Maybe update the docs? Thanks for your help Stephen.

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Tyler Furreboe answered ·

Sheen? The docs only stated `sheen_weight` `sheen_color` and `sheen_roughness`

Does `sheen_weight` need to be changed to `sheen`? Which would make more sense, being consistent with the rest of the parameters for standard_surface

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Tyler Furreboe answered ·

sheentest.ass (732.0 KiB)
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Stephen Blair answered ·

So if you export an ASS file from Maya, it doesn't work? Please post a repro.

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It's for the plugin I'm developing for Arnold to work in Blender, set up the same as all the other standard surface parameters, and exported the ASS file from Blender and imported into Maya, and appears Sheen is not working that way either.

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Please post an ass file

There's no extra setup required, you just adjust the sheen parameters. I can see a change in the render in Maya by changing Sheen intensity

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