Split SSS per LPE

Forums Solaris and Karma Split SSS per LPE

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zatlax: Member; 9 posts; Joined: Feb. 2020; Offline

Dec. 1, 2023 6:52 a.m.

Houdini 20.0.506 seems that splitting SSS per LPE tag doesn't work at all. Does anyone have the same issue?
attached a simple scene, if anyone want to try. thanks

Attachments:
01.jpg (104.1 KB)
02.jpg (49.8 KB)
03.jpg (49.9 KB)
SSS_LPE.hiplc (712.2 KB)


zatlax: Member; 9 posts; Joined: Feb. 2020; Offline

Dec. 2, 2023 12:37 p.m.

just me or anyone have the same issue?


freshbaked: Member; 82 posts; Joined: June 2020; Offline

Dec. 2, 2023 1:36 p.m.

Your file works as expected for me but I'm using .540.
Perhaps try with the latest daily build?


Siavash Tehrani: Member; 710 posts; Joined: July 2005; Offline

Dec. 2, 2023 6:49 p.m.

Tested builds .506 and .542. For both it works in Karma CPU, but not XPU.


freshbaked: Member; 82 posts; Joined: June 2020; Offline

Dec. 3, 2023 5:28 p.m.

Has it been reported to support?


zatlax: Member; 9 posts; Joined: Feb. 2020; Offline

Dec. 4, 2023 3:35 a.m.

Siavash Tehrani
Tested builds .506 and .542. For both it works in Karma CPU, but not XPU.

yes exactly! works only in karma CPU.


TwinSnakes007: Member; 606 posts; Joined: July 2013; Offline

Dec. 4, 2023 8:16 a.m.

zatlax
Siavash Tehrani
Tested builds .506 and .542. For both it works in Karma CPU, but not XPU.
yes exactly! works only in karma CPU.

That's kind of a BIG detail to omit from your original report.

There are known feature gaps between CPU/XPU

Houdini Indie
Karma/Redshift 3D


dlee: Staff; 428 posts; Joined: Sept. 2016; Offline

Dec. 5, 2023 10:26 a.m.

Ah, I think you've come upon a bug. Not with Karma XPU specifically but with Karma Standard Render Vars LOP - it's generating the wrong LPEs (legacy expressions that are not supported by XPU) when 'Split per LPE tag' is enabled for SSS AOV. Can you please file a bug and link this forum thread? Thank you!


zatlax: Member; 9 posts; Joined: Feb. 2020; Offline

Dec. 5, 2023 12:16 p.m.

dlee
Ah, I think you've come upon a bug. Not with Karma XPU specifically but with Karma Standard Render Vars LOP - it's generating the wrong LPEs (legacy expressions that are not supported by XPU) when 'Split per LPE tag' is enabled for SSS AOV. Can you please file a bug and link this forum thread? Thank you!

Sure! thanks


npetit: Staff; 360 posts; Joined: Feb. 2008; Offline

Dec. 6, 2023 6:27 p.m.

That is fixed in tomorrow's build.


zatlax: Member; 9 posts; Joined: Feb. 2020; Offline

Dec. 13, 2023 12:44 p.m.

npetit
That is fixed in tomorrow's build.

tried on houdini 20.0.547 but i don't see any difference, the SSS per LPE still black


stehrani3d: Member; 3 posts; Joined: Aug. 2023; Offline

Dec. 13, 2023 2:43 p.m.

You'll have to grab a daily build, it didn't make it into .547. Btw you can check out changelogs at Support > Changelog/Journal up top.

Attachments:
chrome_HUIDitg3z0.png (64.8 KB)

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