OctaneRender for HoudiniSolaris 2025.2.1.0 - R1

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BK
OctaneRender Team
Posts: 1454
Joined: Mon Oct 31, 2016 7:54 pm

OTOY® is proud to announce the availability of the new DCC plugin OctaneRender for HoudiniSolaris 2025.2.1.0 - R1 release.

The world's fastest unbiased GPU rendering engine on CUDA and Metal now integrates completely with Houdini 19.5, Houdini 20.0 & Houdini 20.5 Solaris.
OctaneSolaris builds supported by this release: 19.5.805, 20.0.896, 20.5.550, 20.5.584 and 20.5.613..

What is OctaneRender for Solaris?
The OctaneRender for Solaris plugin is based on Pixar’s USD (Universal Scene Description) and Pixar’s Hydra API to empower artist workflows across look development, scene layout, lighting, and final rendering.

Image

Image

Pixar's USD pipeline
https://renderman.pixar.com/stories/pixars-usd-pipeline


-Installation steps-

Insert the OctaneRender® plugin folder path to the houdini.env file. Houdini®creates this file after launching it for the first time.
On Linux and macOS® systems, append a single line to enable OctaneRender®:

HOUDINI_PATH = "/path/to/octane;&"

On Windows® systems, you need to set the PATH to point to the plugin bin folder as well:

PATH = "C:/path/to/octane/bin;$PATH"


Setting this environment variable outputs any error related to loading the OctaneRender® plugin on the command line for diagnosing installation problems:
HOUDINI_DSO_ERROR = 2

-Houdnin Packages/json installation steps-

- Please create a folder inside Documents\houdini19.5 and name it as Packages
- Open notepad or any text editor and use these lines

Code: Select all

{
    "enable": true,
    "env": [
        {
            "OCTANE_AUTOSPAREPARAMS": {
                "value": 1
            }
        },
        {
            "OCTVERSION": "PATH_TO_OCTANE_SOLARIS_Win64 FOLDER"
        },
        {
            "HOUDINI_PATH": {
                "value": "$OCTVERSION"
            },
            "PATH": {
                "value": "$OCTVERSION\\bin"
            },
            "PXR_PLUGINPATH_NAME": {
                "value": "$OCTVERSION\\dso\\usd_plugins"
            }
        }
    ]
}
- Then Save as OctaneSolaris.json
- Please make sure to disable the .env paths

- Please run **createPackageFileForOctane.bat** for automatic Package installer for Windows OS.

New features
To learn more about the new features and improvements of OctaneRender 2025.2.1 and the Render Node app, please check out the 2025.2 release post


Change log since last release
  • New Octane 1.3 node with automatically created USD RenderROP node.
  • New universal camera custom aperture settings.
  • Octane Standard surface set as default for OctaneSolaris Material builder.
  • Added the Tessellate polygons option in the Render Geometry Settings node.

  • Updated Camera and Light nodes with UI improvements.
  • The beauty or denoised beauty pass now have blank names to conform to the standard EXR naming scheme.
  • Fixed the volumes disappearing after a light is edited.
  • 
Fixed particles not rendering on second frame update.
* This release syncs with our regular plugin.. More builds coming up with bug fixes in later releases!


Note: Click the link below to refer to the Important SOP to USD attribute conversion
https://www.sidefx.com/docs/houdini18.5/solaris/sop_import.html


Important notes:

[*] The minimum NVIDIA driver version required has been raised to R528 (R572 for GeForce RTX50 Series).
[*] The GPU version of Open Image Denoise is supported on Volta and Ada GPUs currently. The CPU version is used on devices with other models, and on macOS..
[*] The minimum version of macOS required is 14.5.[/b]

Linux Note
On Linux only default Houdini builds are supported.
This means that for Houdini 20.0 and 20.5, gcc11.2 builds are supported, and for Houdini 19.5, gcc9.3 build is supported.




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Subscription Studio+ Downloads
=================================

OctaneSolaris [macOS](Link)

OctaneSolaris [Linux](Link)

OctaneSolaris [Windows](Link)


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Demo Downloads
=================================

OctaneSolaris [Windows](Link)

OctaneSolaris [Linux](Link)




Happy GPU Rendering !!




Your team
OTOY
Kind Regards

bk3d
adrianr
Licensed Customer
Posts: 53
Joined: Sat Jan 25, 2020 3:31 pm

Is it possible to start wrapping up these version zips a different way? You have nested folders within folders within folders that far too easily hit Windows character limit if you're extracting in-place. Does every version archive need to contain itself? Can it not just contain the contents?

C:\Users\Adrian\Downloads\Octane_2025.2.1.0_Solaris_R1_Studio+_Win64\Octane_2025.2.1.0_Solaris_R1_Studio+_Win64\Octane_2025.2.1.0_Solaris_20.5.613_R1_Studio+_Win64.zip\Octane_2025.2.1.0_Solaris_20.5.613_R1_Studio+_Win64\

That's what you have before you finally get to the contents for the version you want. I know I can just select a new place to extract to but this still feels a bit excessive :D
adrianr
Licensed Customer
Posts: 53
Joined: Sat Jan 25, 2020 3:31 pm

I'm curious if many people are working with volumes in Solaris Octane 2025? I have some very repeatable crashes when switching from Octane rendering back to OpenGL. I've rolled back to 2024 for now which doesn't exhibit this issue. It stops rendering and snaps straight back to OpenGL as you'd expect.
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