OTOY Forums

It's ok, not a work breaking for me, but I thought it was working as I try it in modo, and works.

Thank you

Lino,
I've just updated from Blender 4.5.5 to 5.2 with Octane 31.10

PLEASE, pretty please, with sugar on top, fix this!

The 'Show Octane Viewport' button is used exclusively here, to be able to QUICKLY view our AOV's and then save out Layered EXR's, with cryptomattes, WITHOUT having to do things twice (i.e. previewing and then doing a full F12 Render just to save the image).
The latter also introduces a whole host of other issue for further work downstream eg: no thumbnail for the rendered image in explorer.

At the moment the Octane Render Viewport is broken, almost unusable.....Pan around the image, it hangs, Zoom the image, it hangs, switch among the AOV's at the bottom, it hangs; and the Octane Render Viewport no longer seems to sync to the Blender viewport when moving the camera around the scene....Constantly having to close and reopen the window is annoying.

The above was NEVER the case with 4.5.5 and Octane 30.9.

Cheers,
Toby

Hi Toby,

thanks for the detailed report. We’ll definitely look into the issues with the Octane Render Viewport and try to address the regressions you’re seeing compared to Blender 4.5.5 / Octane 30.9.

Personally, I’d really like the Octane Viewport to become much better integrated into Blender’s normal workflow, rather than behaving as a somewhat separate environment. I think that would make AOV previewing, saving EXRs, camera navigation and the overall workflow much more natural.

However, achieving that properly would require some fairly substantial changes on our side, so it’s not something we can implement quickly and it will take some time.

In the meantime, we’ll focus on fixing the current viewport problems and making the existing workflow reliable again.

Cheers,
Lino

Thanks Lino,

looking forward to seeing what you can do.

Cheers,
Toby

We'll do our best. Please consider that this goes deep into the engine, so it may require some time. Thanks for your patience.

Lino,

Understood...i'll stick with 4.5.5 and 30.11 for now.

Cheers,
Toby

Gutmann wrote: Wed Aug 12, 2026 11:56 am Lino,
I've just updated from Blender 4.5.5 to 5.2 with Octane 31.10

PLEASE, pretty please, with sugar on top, fix this!

The 'Show Octane Viewport' button is used exclusively here, to be able to QUICKLY view our AOV's and then save out Layered EXR's, with cryptomattes, WITHOUT having to do things twice (i.e. previewing and then doing a full F12 Render just to save the image).
The latter also introduces a whole host of other issue for further work downstream eg: no thumbnail for the rendered image in explorer.

At the moment the Octane Render Viewport is broken, almost unusable.....Pan around the image, it hangs, Zoom the image, it hangs, switch among the AOV's at the bottom, it hangs; and the Octane Render Viewport no longer seems to sync to the Blender viewport when moving the camera around the scene....Constantly having to close and reopen the window is annoying.

The above was NEVER the case with 4.5.5 and Octane 30.9.

Cheers,
Toby

Is there a specific scene you are working with that has these issues? If so, could you share it with us?

Hi Chris,

I'll try some other scenes to see of it's specific to one or more...if I find something, I'll send you the offending scene early next week.

Cheers
-Toby

I'm having viewport rendering issues as well. And this is on a clean install of Windows 11 with a fresh install of Blender 5.2.2 LTS and Octane Blender 31.12. Other than Octane Blender and the default add-ons that come enabled with Blender, there are no other add-ons installed or activated. The issue occurs about 98% of the time I try to do a real-time preview - even though final F12 renders work perfectly fine. When the viewport render does work I can find no persistent pattern as to why. It seems completely arbitrary.

However, In my case, the issue seems to be directly related to the "Use Shared Surface for Viewport" option in the Octane Blender add-on preferences. When unchecked, I have no problems using and rendering through the real-time viewport. When checked, the viewport fails at least 98% of the time.

I have two GPU's and did notice that when I go into the Server "Show Octane Viewport" option, that it claims "one GPU has failed." But both GPU's are actually working correctly and contribute to a final render through F12.

Can you please show me your Device Prefrences option panel? Thanks!