Thanks for new release, sadly that bug "visibility on specular" is not fixed in this release :/.


viewtopic.php?p=444230#p444230

Hi DEVs,

Please fix "affect specular" option on Lights with Shadow Catcher/matte material.
Currently all 2024/2025 and 2026.x releases have this BUG. Last one when it worked is 2023.1.3.

Here is the simple scene attached

And Video to demonstrate BUG.

Thanks

Great, thanks for reply.

I'll then post in to the 2026.4 Release topic.

cheers

You can add another texture environment and plug it in to the "visible environment" of render target node (and use checkmarks there you want) like "Backplate visible".

cheers

Hi,

Can i please get link to forum section or mail where to send Octane render BUGs that some live person actually reviews/looks at?

Thanks

Thanks for release.

Hi,

I just tested this in Octane Standalone 2026.2 with my Renderslave and it+'s same result. So yes i can confirm it's BROKEN when using net GPUs.

Here is ORBX file of simplified scene for easier testing on OTOY side.

Please fix this, Thanks

Thats OLD Octane, it was not removed in that version, i was under impression you used newer version LW/Octane i.e. 2023+

That older LW (2020) + Octane 2021.1.7 has both options for Alpha, Premultiplied (and straight when it's off) in settings.
It's checkmark on imager node:
here:
https://prnt.sc ...

This one from official post.
you can use LW 2025.0.1 and that octane or just upgrade your LW to latest patch 2025.0.4 also.

viewtopic.php?t=85474

Thanks LW team and Otoy for quick response/upload.