First check you have the following Arnold core : >= 7.3.3.1 (tested on maya 2024, 2025 and 2026). With Maya we have to edit Maya.env. MTOA_TEMPLATES_PATH = your_path_to\rtoa\DCCs\Maya\ae MAYA_CUSTOM_TEMPLATE_PATH = your_path_to\rtoa\DCCs\Maya\aexml ARNOLD_PLUGIN_PATH = your_path_to\rtoa\bin Just let the above Maya vars point to the correct location where you have rtoa. Then you need to add an[…]

First check you have the following Arnold core : >= 7.3.3.1 (we tested rombotools on 2023, 2024 and 2025). Then set the ARNOLD_PLUGIN_PATH environment variable on Windows. On Windows 10/11 click the win button and start typing ‘env’ you should get an hint like ‘Edit the system environment variables’, clicking on that it will open[…]

With Houdini the installation is pretty simple and standard for Arnold custom shaders. All we have to do is to set the ARNOLD_PLUGIN_PATH environment variable on both Windows or Linux to rtoa/bin path. Before that however check you have the following Arnold core : >= 7.3.3.1 (tested with Houdini 19.5, 20 and 20.5). In Windows[…]

First check you have the following Arnold core : >= 7.3.3.1 (tested on 3dsMax 2024 and 2025). Then simply set the ARNOLD_PLUGIN_PATH environment variable to rtoa/bin path. In Windows 10/11 click the win button and start typing ‘env’ you should get an hint like ‘Edit the system environment variables’, clicking on that it will open ‘System Properties’ ..[…]

First check you have the following Arnold core : >= 7.3.3.1 (tested on Katana 5.0v.1) Then simply set the ARNOLD_PLUGIN_PATH environment variable to rtoa/bin path. In Windows 10/11 click the win button and start typing ‘env’ you should get an hint like ‘Edit the system environment variables’, clicking on that it will open ‘System Properties’ .. at[…]