Houdini production builds supported by this release: 20.5.684, 21.0.729, 22.0.368, 22.0.429 and 22.0.459.
If you are not sure if your Houdini version is compatible with the plugin - just run it and you will see an error message in case of incompatibility.
Linux Note
On Linux only default Houdini builds are supported.
This means that for Houdini 20.5, 21.0 and 22.0 gcc11.2 builds are supported.
New features
To learn more about the new features and improvements of OctaneRender 2027.1 Alpha 3, please check out the 2027.1 Alpha 3 release post
Known bugs
On Linux, MPlay IPR may not be working. If you are having problems with it, please switch to QT5 IPR and disable "Render to MPlay" in ROP nodes.
Downloads
Release 2027.1.Alpha_3.0 Studio+ license
Windows Houdini 20.5.684
Windows Houdini 21.0.729
Windows Houdini 22.0.368
Windows Houdini 22.0.429
Windows Houdini 22.0.459
Linux Houdini 20.5.684 (gcc11.2)
Linux Houdini 21.0.792 (gcc11.2)
Linux Houdini 22.0.368 (gcc11.2)
Linux Houdini 22.0.429 (gcc11.2)
Linux Houdini 22.0.459 (gcc11.2)
Release 2027.1.Alpha_3.0 macOS Prime license
MacOS Houdini 20.5.684
MacOS Houdini 21.0.729
MacOS Houdini 22.0.368
MacOS Houdini 22.0.429
MacOS Houdini 22.0.459
Release 2027.1.Alpha_3.0 Demo version
Windows Houdini 20.5.684
Windows Houdini 21.0.792
Windows Houdini 22.0.459
Linux Houdini 20.5.684 (gcc11.2)
Linux Houdini 21.0.792 (gcc11.2)
Linux Houdini 22.0.459 (gcc11.2)
Release Notes
=============================================
RELEASE 2027.1.Alpha_3.0
=============================================
PLUGIN FEATURES AND FIXES:
Octane Core changes:
- Octane OpenPBR has a version setting: New Octane OpenPBR materials use OpenPBR 1.2. Houdini's native mtlx OpenPBR and materials from
- scenes saved with earlier versions stay on OpenPBR 1.1, so they render as before.
- Temporal Denoising toggle removed: from Render Target and Octane Render Setup. Temporal denoising is now always on.
- Polarization filter for cameras: Thin lens, Universal and Realistic Lens cameras have new Polarization intensity and rotation settings, in Render Target, Octane Render Setup and Solaris camera settings.
- Visibility cache for the Planetary environment: in Render Target, Octane Render Setup and Solaris render settings.
- Float image output type: The Float image texture can output Float or Color3.
- Displacement mode shown on the Displacement node: A new "Bake mode:" line shows whether Octane bakes the displacement as a UV atlas or with normalized UVs. It appears once the node has been rendered, and hides while its texture is changed until the next update. Displacement
- now also has a Projection input, for displacement with non-UV projections.
- New MaterialX support from Octane: Burley Diffuse, Conductor, Dielectric, Generalized Schlick, Oren-Nayar Diffuse and Sheen BSDFs, Flake 2D/3D, Artistic IOR and new roughness helpers.
- Houdini's MaterialX BSDF nodes can now connect to Octane material layer inputs and outputs.
- The IPR snapshot now matches the current render region / film region.
- Ctrl + mouse zooms the canvas in render region, film region and snapshot compare modes; tooltips show when canvas pan and zoom are available.
- Camera polarizer settings and the Planetary visibility cache (see above).
- MaterialX open_pbr_surface renders as OpenPBR 1.1, matching Houdini's MaterialX definition.
- The Displacement node's mode is written to the Octane log (Solaris can't show it on the node).
- Fixed octane:* camera and light edits not updating the render under Hydra 2.0.
- createPackageFileForOctane_NoSceneIndex.bat should be no longer needed, and will be removed from future releases, so please report any problems with createPackageFileForOctane.bat
- Fixed a crash when clearing the Tile Grid image node's File List.
- Fixed reloading instanced analytic lights losing their instance color.
- Fixed the Texture Switch input slider having a huge maximum.
- The per-GPU "Use priority" option in the Octane options was previously ignored, and GPUs used for denoising got priority instead.
- Demo version: the IPR's "Copy Image to Clipboard" menu is hidden, as it isn't supported there.
Note
From 2025.1.Beta_1.0, Octane plugin for Houdini uses Houdini package file. Each build ships a script (createPackageFileForOctane.bat for Windows, createPackageFileForOctane.sh for Linux and Mac) to help create the Octane.json file as below under C:\Users\<username>\Documents\houdiniXX.Y\packages on windows, ~/Library/Preferences/houdini/XX.Y/packages on Mac, or ~/houdiniXX.Y/packages on Linux.
Code: Select all
{
"enable": true,
"env": [
{
"OCTANE_AUTOSPAREPARAMS": {
"value": 1
}
},
{
"OCTVERSION": "<path_to_plugin_directory>"
},
{
"HOUDINI_PATH": {
"value": "$OCTVERSION"
},
"HOUDINI_MENU_PATH": {
"value": "$OCTVERSION/config/Menus"
},
"HOUDINI_SCRIPT_PATH": {
"value": "$OCTVERSION/scripts"
},
"PATH": {
"value": "$OCTVERSION/bin"
},
"PXR_PLUGINPATH_NAME": {
"value": "$OCTVERSION/dso/usd_plugins"
}
}
]
}
2024.1.0.2 fixed the problem that the layered material nodes cannot be loaded properly, however this fix affects all layered material nodes and OSL material nodes in existing saved .hip files. When loading a .hip file for the first time using this build, it's necessary to adjust the connections of these nodes. Once the file is saved with the updated connections, the issue will be resolved.
Common Issues and Solutions
- If the plugin doesn't work at all, set
HOUDINI_DSO_ERROR = 2 in houdini.env and check for messages in the terminal.- If you're missing
libglut.so.3, install the freeglut package.- If you are having any issues with the Deadline - please submit a support ticket to the AWS.
Happy rendering,
Your OTOY Team
