Ali Fatoorechi
ali_f
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Lancing,
United Kingdom
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SideFX Staff
Since May 2022
Recent Forum Posts
Portal MIS Bias not working? Dec. 1, 2025, 11 a.m.
It actually is working as expected, sorry. I was playing with MIS Bias instead of Portal MIS Bias.
Please try the hip file I shared on the previous post and change the option on the dome light Karma tab to see the effect.
There are two node branches in the hip file that demonstrate the old (via Render Geometry Settings) and new style (Portal Light HDA)
of setting up Portals.
Please report a bug if this doesn't help. Thanks.
Please try the hip file I shared on the previous post and change the option on the dome light Karma tab to see the effect.
There are two node branches in the hip file that demonstrate the old (via Render Geometry Settings) and new style (Portal Light HDA)
of setting up Portals.
Please report a bug if this doesn't help. Thanks.
Portal MIS Bias not working? Nov. 28, 2025, 7:53 a.m.
Hi,
Yes for high contrast area setting Portal MIS to -1 (sampling environment map) may be more beneficial.
However the option seems to be broken when using Portal Light HDA (attached hip file).
I will investigate it further.
It would be great if you could log a bug and attach a sample model too. Thanks!
Yes for high contrast area setting Portal MIS to -1 (sampling environment map) may be more beneficial.
However the option seems to be broken when using Portal Light HDA (attached hip file).
I will investigate it further.
It would be great if you could log a bug and attach a sample model too. Thanks!
Volume “motion vector” AOV pass H21 Nov. 27, 2025, 8:30 a.m.
Hi,
Would you be able to post the scene please. Thanks.
Would you be able to post the scene please. Thanks.