Hi,
Not a daily user of Blender Octane, but I've been testing the new builds now, it feels like Vulkan in Blender is a reason behind some instabilities, for example running Vulkan viewport with Octane feels laggy. I also have a problem running 2x GPUs in Cycles with Vulkan viewport, but that's off topic.
Will Octane Blender builds always be a thing? I tried 2026 addon and can tell addon works worse than custom octane blender builds, so I wouldn't use an addon in general just because of this.
I guess for Blender Octane the good practice is to use OpenGL viewport instead? It runs a lot smoother with it.
Addon performance and Vulkan
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Before posting a bug report, please check the following:
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Bugs related to the Octane Engine itself should be posted into the Standalone Support sub-forum.
All bug reports should include the information below, along with a detailed description of the issue and steps to reproduce it.
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B. Graphics Card(s) model (i.e. GTX 580 - 3GB, TITAN, etc.)
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G. Host application version, including build number if available (i.e. 3ds Max 2016 Build 18.0)
Before posting a bug report, please check the following:
1. That the issue has not already been disclosed
2. That the issue is specific to this plugin, and not Octane in general (Try reproducing it in Standalone)
Bugs related to the Octane Engine itself should be posted into the Standalone Support sub-forum.
All bug reports should include the information below, along with a detailed description of the issue and steps to reproduce it.
A. Operating System, including version (i.e. Win 7, OSX 10.11.2, Ubuntu 14.04, etc.)
B. Graphics Card(s) model (i.e. GTX 580 - 3GB, TITAN, etc.)
C. RAM Capacity (i.e. 6 GB)
D. Nvidia driver version (i.e. 7.50, 7.5.22)
E. OctaneRender Standalone version, if installed (i.e. 2.24.2, 2.23, etc.)
F. OctaneRender plugin version (i.e. v2.25 - 2.21)
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linograndiotoy
- Posts: 1456
- Joined: Thu Feb 01, 2018 7:10 pm
Your assumption about needing OpenGL is correct.
To use Octane in Blender, Vulkan must be disabled, as mentioned here:
viewtopic.php?p=440297#p440297
Custom Octane builds are now a thing of the past. The add-on version is the recommended path moving forward — especially with the upcoming 2026.2 release.
To use Octane in Blender, Vulkan must be disabled, as mentioned here:
viewtopic.php?p=440297#p440297
Custom Octane builds are now a thing of the past. The add-on version is the recommended path moving forward — especially with the upcoming 2026.2 release.