Expectation: Tangent should work on Hair Material
Open the project(5.5) and the material used on the hairs
Tweaking Tangent parameter has no effect on Hair when using PT; It has big impact on Deferred rendering though
Here the test result for your references:
Hair shader on Groom effective inputs * DF:BaseColor, Specular, Roughness,Tangent,Backlit
Hair shader on Cards effective Inputs * DF:BaseColor, Scatter,Specular, Roughness,Tangent
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-229370 in the post.
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Component | UE - Graphics Features - Path Tracer |
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Affects Versions | 5.5 |
Target Fix | 5.6 |
Fix Commit | 39078208 |
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Created | Nov 1, 2024 |
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Resolved | Jan 9, 2025 |
Updated | Jan 15, 2025 |