UPDATE (29/05): 31.7.3 Hotfix now available!
This Addon Release is only compatible with Blender 5.1 - previous Blender 5.0 and 4.x releases are not supported.
This version works on the "vanilla" Blender 5.1.1 release, that you can download and install from the Blender Foundation website ( https://www.blender.org/ ).
The installation consists from two parts:
1. OctaneRender™ Server
2. OctaneRender for Blender Addon
How to Install
- Download the addon and the server files
- Unzip the Octane Addon Server in any location on your hard drive
- Launch the Octane Addon Server
- Launch Blender and from Preferences/Addon, install the Octane for Blender addon
- Select File > New > OctaneRender Startup (Direct Lighting) or File > New > OctaneRender Startup (Path Tracing)
- Quit Blender
- Launch Blender again
CHANGES SINCE LAST RELEASE
- Extending support to Blender 5.1.1
- Updated to OctaneRender 2026.3
- Fixed ramp node updates for pinned node trees
- Fixed hair render issue with child threshold
- Fixed hair uv issue
- Fixed compositor node tree crash in Blender 5.1
- Minor Bug fixes
- Implemented instance attribute feature
- Supported using the instance attribute as an instance color image
- Fixed the inverted light direction issue
- Fixed the cone width issue
- Fixed missing data issue for Gradient nodes
- Fixed traceback when creating kernel nodes
- Fixed macOS/Linux python module issue
- Fixed OCIO color space socket issue in MX image nodes
You can read about new features of OctaneRender™ 2026.3 here:
viewtopic.php?t=85624
Octane Blender Addon
All Platforms
Blender Addon - All Platforms - Studio/Prime Edition (updated to 31.7.3)
OctaneServer
Studio Edition
Octane Server - Windows - Studio Edition
OctaneServer - Linux - Studio Edition
Prime Edition
Octane Server - Windows - Prime Edition
Octane Server - Linux - Prime Edition
Octane Server - MacOS (Metal) - Prime Edition
Usage
- Start with a default scene (File > New > OctaneRender Startup (Direct Lighting) or File > New > OctaneRender Startup (Path Tracing))
- Convert a scene from the non-addon version: "File > Export > OctaneBlender Addon". Please report any problem you may find when converting your scenes!
Bug Reports
For faster troubleshooting, please provide as much information as possible. Please include:
- Your Hardware specifications (unless they are included in your signature)
- A clear description of the issue you have found
- Steps that you took to trigger this bug, so that we can reproduce it (ideally, please also provide screenshots)
- If possible, Blend files for direct testing would also be appreciated
- Whenever possible, please confirm that this issue is only happening in the plugin, and not also in the Standalone Edition (if the bug occurs in both, it is likely that this issue should be reported in the OctaneRender Standalone section of the Forums).
- Open the directory of the Blender executable file.
- Double-click the blender_debug_log.cmd file to open it.
- This will launch Blender in debug mode and automatically start capturing logs.
- Reproduce the issue you are experiencing in Blender.
- Once you have finished reproducing the issue, close Blender.
- Blender will open a folder containing error log files.
- You can then send us the blender_debug_log.txt file to help us diagnose the issue.
You can get more information about the debug command at https://docs.blender.org/manual/en/latest/troubleshooting/crash.html.