Katana

First check you have the following Arnold core : >7.1.3.1 (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 the bottom[…]