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smith jhon avatar image
smith jhon asked ·

I ask for ainormalmap problem!

In aiStandardSurface, we connected the normal map using the aiNormalMap utility.

The problem is that the backface is not rendered when using aiNormalMap.

When bump2d is used, it is rendered normally.

Do you know the solution to this problem?

arnold5normal map
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What is backface?

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smith jhon avatar image
smith jhon answered ·
What the backface means is that it refers to the back side of an object with no thickness.

I'm sorry I can not speak English well.
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Lee Griggs avatar image
Lee Griggs answered ·

Maybe the Two Sided shader would help?

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smith jhon avatar image
smith jhon answered ·

Thank you for answer. However, even with a twosided shader, the result was the same. (Not resolved) I attach a picture here to help you understand.

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Ashley Handscomb Retallack avatar image
Ashley Handscomb Retallack answered ·

Have you got "Export Tangents" enabled in the shape Arnold options?

https://support.solidangle.com/x/-QtkAg

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Marv Schubert avatar image
Marv Schubert answered ·

I encountered this problem aswell. The solution to it, was to flip the "z" channel of my normal map that is applied to the backside

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