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Fix: Cycles: Thin subsurface missing transmission flag

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This caused light tree sampling to fail. It was not caught in the test
file because the light tree option was off, I now turned it on.

Pull Request: https://projects.blender.org/blender/blender/pulls/159417
This commit is contained in:
Weizhen Huang 2026-06-02 12:48:33 +02:00 • committed by Weizhen Huang
parent 80f0384224
commit 14b47094df
3 changed files with 5 additions and 5 deletions
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2
intern/cycles/kernel/closure/bsdf_oren_nayar.h
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@ -211,7 +211,7 @@ ccl_device_inline void bsdf_thin_subsurface_setup(ccl_private ShaderData *sd,
bsdf->type = CLOSURE_BSDF_ROUGH_TRANSLUCENT_ID;
bsdf->N = -N;
bsdf->param = param;
sd->flag |= SD_BSDF | SD_BSDF_HAS_EVAL;
sd->flag |= SD_BSDF | SD_BSDF_HAS_EVAL | SD_BSDF_HAS_TRANSMISSION;
}
}
}

4
tests/files/render/principled_bsdf/cycles_renders/principled_bsdf_thin_subsurface.png
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@ -1,3 +1,3 @@
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4
tests/files/render/principled_bsdf/principled_bsdf_thin_subsurface.blend
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