OTOY Forums

Hi all,

The main change for this build is C4D R2026 support.
For the rest we focussed on fixes and UI cleanup.

To see what the future holds, check out our Trello!
https://trello.com/b/1HYU24R0/octanec4d

2025.3 - v1.7.1 plugin revisions

Changes:

• Added support for Cinema4D R2026
• Fixed PSD alpha export issues with picture viewer
• Fixed Redshift material conversion crash
• "Use Denoised Beauty pass" OctaneRender setting works again
• Added 2025 compatibility modes
• Thin Wall option now works on sub-materials
• Transmission type is removed from sub-materials that dont support it
• Add denoiser quality pin
• New nodes now correctly update live viewer again
• Added pin for planetary albedo texture
• Added option to change wire color in node editor
• Removed red outline on nodes in nodeeditor
• Node editor text color setting now works
• Unused render settings are now hidden in OctaneRender settings
• Removed preview box as it is only for materials
• Fixed overlapping text on certain nodes in the node editor
• Removed "." at the end of various number input boxes across the plugin
• Updated Copyright

Downloads:
WINDOWS STUDIO+ 2025.2.3-v1.7.1 (R21-R2026)
Installer: https://render.otoy.com/customerdownloads/plugins/0d/d0/9b/28/OctaneRender_Studio%2B_2025.3_for_Cinema4D_v1.7.1.exe
Archive: https://render.otoy.com/customerdownloads/plugins/c1/4f/f3/0b/OctaneRender_Studio%2B_2025.3_for_Cinema4D_v1.7.1_Bundle.zip

Mac OSX Prime 2025.2.3-v1.7.1
https://render.otoy.com/plugindownloads/0c/a6/48/e0/OctaneRender_Prime_2025.3_for_Cinema4D_v1.7.1.zip

WINDOWS Demo 2025.2.3-v1.7.1 (R21-R2026)
Installer: https://render.otoy.com/plugindownloads/9a/9f/21/5c/OctaneRender_Demo_2025.3_for_Cinema4D_v1.7.1.exe
Archive: https://render.otoy.com/plugindownloads/6c/2b/09/18/OctaneRender_Demo_2025.3_for_Cinema4D_v1.7.1_Bundle.zip




Support
Some important notes about these builds:

The minimum NVIDIA driver version that is required by this version is 528. You can launch Octane with an older driver version, but it will fail to render and it will produce an error message in the log.

Open Image Denoise is supported on CUDA compute model 7 and later, we fallback to the CPU version on machine with older models.


IN ANY CRASH CASE PLEASE DO THESE!!!
If you see CUDA errors follow 1,2,3,4.
1- Use NVIDIA STUDIO drivers, not Game Ready versions. If you have stability issues try different drivers, some of them could cause instability issues. Make a clean install while doing this to be sure previous files completely removed.
2- Check GPU frequency. Overclocking would cause instability issues
3- Check PSU. Insufficient power output would cause instability issues
4- Check the free amount of GPU's VRAM and system's RAM while working. Low VRAM will/may cause CUDA errors. Be aware of some generator objects will have different triangle count in Picture Viewer than Live Viewer. It’s like “editor/render” parameter. Just try to use the same value. Also try to optimize your scene for polygon count, even use smaller images. Try to use Octane texture nodes rather than using C4D texture/shaders.
Alternatively, use V4 and Out-of-core(OOC) function. Increase RAM for OOC and It should not exceed physical RAM amount. Check TDR value and increase if it's necessary.
5- If you see C4D crashes without CUDA errors, then send us bugreport.zip, screen-shots and video capture to show process and crash moment. Also please send us a sample scene in a format of C4D or ORBX to let us investigate and test it. Alternatively, try to delete/hide some objects/materials until crash gone away. If you find what's causing crashes, send us a sample scene to let us for investigating and bring a fix or solution.
Thanks for helping the development by your feedbacks! It’s impossible to quickly catch every case without user feedbacks! It’s the same procedure as other companies do like Maxon/etc...



Please note the macOS build will only work correctly on macOS 14.5 and newer, and only on Apple Silicon.

Requirements:
-You'll need to update your Cinema 4D to latest versions(R21.115, S22.118, R23.110, R24.111, R25.117, R26.107, R2023.2, R2024.4.0, R2025.0.2). Otherwise, the plugin will not work and not appear in menus.
-Internet connection for activation, be sure that C4D and Octane will not be blocked by the firewall and any antivirus software.
-Nvidia drivers at least Nvidia Studio Drivers(minimum 528) and be careful with latest Game Ready drivers which can cause cuda errors. Stay with stable one for you.


ONLINE HELP MANUAL
Use embedded help buttons from Octane nodes and windows
or from link: https://docs.otoy.com/cinema4d/OctaneRenderforCinema4D.html


Archive Installation
First, remove all octane related stuff from plugins and the main folder of Cinema4D.

Extract all files to Cinema4D\plugins\c4dOctane directory.
Also, download manual.zip and extract to c4dOctane directory if it's not available in place.

There are a few files for each one is for different Cinema4D version. Remove all except the file is for your version.
Ex. if you have Cinema4D R2023, keep only "c4dOctane-R2023.xdl64" and delete c4dOctane-R26.xdl64, c4dOctane-R25.xdl64, c4dOctane-R24.xdl64, c4dOctane-R23.xdl64, etc..

Awesome Chris!! Been eagerly awaiting this build! I'll make sure to report any issues if I find any. Hats off to the team. Loving this rate up progress in Octane for C4D!

Octane v1.7.1 for macOS doesn’t work on Tahoe. It detects the card (though it’s deselected by default). When I select it and try to render a preview, an error pops up saying there’s no GPU. After that, another error occurs and C4D automatically shuts down.

Try enabling the "Image" toggle...

Same issue here. The GPU is deselected and only denoising is active.

When setting the device options, only denoise is even listed as an option.
Once exiting the device settings, the GPU check reverts back to unselected.
Also, Octane is not showing up in Renderer options for preferences (though it is showing in the C4D UI)

supersuper wrote: Thu Sep 25, 2025 10:08 am Same issue here. The GPU is deselected and only denoising is active.

When setting the device options, only denoise is even listed as an option.
Once exiting the device settings, the GPU check reverts back to unselected.

Screenshot 2025-09-25 at 13.03.52.png

Also, Octane is not showing up in Renderer options for preferences (though it is showing in the C4D UI)

Screenshot 2025-09-25 at 13.10.47.png

Could you tell is your mac OS version and hardware specs?

Hi!
I’m on MacOS 26 Tahoe and MacBook Pro M3 Max.
Same issue on C4D 2025 & 2026 so I’m assuming it has to do with Tahoe.

Joni

supersuper wrote: Thu Sep 25, 2025 3:00 pm Hi!
I’m on MacOS 26 Tahoe and MacBook Pro M3 Max.
Same issue on C4D 2025 & 2026 so I’m assuming it has to do with Tahoe.

Joni

Yes 26 is not supported yet. We are working on it.

Hi Chris, thanks a lot for the update. May I quote myself from another thread?

would it be possible to always post a link to the corresponding render client when posting new vresions? It would be a much appreciated QoL addition.

KeeWe wrote: Tue Sep 30, 2025 12:24 pm Hi Chris, thanks a lot for the update. May I quote myself from another thread?

would it be possible to always post a link to the corresponding render client when posting new vresions? It would be a much appreciated QoL addition.

I totally agree if your NOT going to use the proper downloads section in our account and list it as beta(which I think you should) then please also put the pc render node along with the Mac and pc octane version in these forums.. I hate having to looking around and matching versions all the fracking time!