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Tochukwu Nwankwere avatar image
Tochukwu Nwankwere asked ·

How to set up standard surface sss to render bump maps?

Arnold fails to render bump maps or normals when sss feature of standard surface material is ramped up...

standard surface
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Lee Griggs avatar image
Lee Griggs answered ·

I don't have this issue. Can you supply some images or a scene file?


sss-bump.jpg (545.9 KiB)
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Gravicx Gravicx avatar image
Gravicx Gravicx answered ·

Put a bump map inside a displacement shader. Activate "use autobump sss" in your render settings and autobump in displacement attributes (Arnold Tag in C4D). It seems the only way to render proper sss with bump maps.

you don't need to subdivide your mesh to reach this effect...

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Tochukwu Nwankwere avatar image
Tochukwu Nwankwere answered ·

ok. Which would you recommend?. Bump 2d or normal map?...

Thank you..

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Lee Griggs avatar image
Lee Griggs answered ·

It is hardly visible at 1. If I lower it to 0.95 it is visible.


sss-weight-095.jpg (449.9 KiB)
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Tochukwu Nwankwere avatar image
Tochukwu Nwankwere answered ·

Thanks for the response. Can it also render if the sss is raised to 1.0

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