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Cycles: Use high value for Transparent BSDF PDF 

The transparent BSDF is singular, so MIS shouldn't be applied.

Fixes #117657.
This commit is contained in:
Lukas Stockner 2024-02-04 00:07:53 +01:00
parent 4b108959ba
commit 8d7ecd0856
1 changed files with 3 additions and 2 deletions
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5
intern/cycles/kernel/closure/bsdf_transparent.h
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@ -76,8 +76,9 @@ ccl_device int bsdf_transparent_sample(ccl_private const ShaderClosure *sc,
{ {
// only one direction is possible // only one direction is possible
*wo = -wi; *wo = -wi;
*pdf = 1; /* Some high number for MIS. */
*eval = one_spectrum(); *pdf = 1e6f;
*eval = one_spectrum() * 1e6f;
return LABEL_TRANSMIT | LABEL_TRANSPARENT; return LABEL_TRANSMIT | LABEL_TRANSPARENT;
} }