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Author Topic: Weird shading with anisotropy on  (Read 3428 times)

2019-08-11, 18:40:14

mantaskava

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Weird shading with anisotropy on
Hey guys,

Any idea what is happening here? It seems this shading error occurs when anisotropy mtl is used on bent geometry. It wouldn't be such a surprise (probably) if this was happening on very heavily bent surface, but the rocking chair's frame isn't bent that hard.

Chair's frame


Frame + test geo


Test geo flat




Thanks
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2019-08-11, 19:23:55
Reply #1

romullus

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Re: Weird shading with anisotropy on
Just a guess, maybe anisotropy orientation is set to UVW and actual UVs are messy?
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2019-08-12, 12:21:26
Reply #2

mantaskava

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Re: Weird shading with anisotropy on
Quote from: romullus on 2019-08-11, 19:23:55
Just a guess, maybe anisotropy orientation is set to UVW and actual UVs are messy?

Yep, it seems it was related to UV mapping. Not that uvs were messy, but I just had to change direction settings from "local axis" to "uvs".

Thank You, Romullus!
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2019-08-12, 17:15:25
Reply #3

maru

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Re: Weird shading with anisotropy on
Maybe it could be an instance of this? https://forum.corona-renderer.com/index.php?topic=11044.msg71290#msg71290
It also happens in other renderers.
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