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Installation Path Variables
You will need to set a few environment variables to get RfK up and running with PRMan and Katana. RfK looks for RenderMan on the $RMANTREE environment variable. As long as $RMANTREE is set correctly, RfK will find the appropriate PRMan libraries and commands. Katana finds RfK in the same way it would find any other plugin - through the $KATANA_RESOURCES environment variable. The paths for these environment variables will depend on whether you install RfK/PRMan in the default locations or not.
| Environment Variable | Default Installation Paths |
|---|---|
RMANTREE | /opt/pixar/RenderManProServer-21.2 |
| /opt/pixar/RenderManForKatana-21.2-katana2.2/plugins/Resources/PRMan21 |
RMAN_SHADERPATH and/or RMAN_RIXPLUGINPATH environment variables to include your specific paths.Output Path Variable
RFK_REDIRECT_OUTPUTShader Discovery
During startup RenderMan for Katana will automatically load all "discoverable" shaders. Shaders are discoverable if they are found in a search path and (for non-OSL shaders) have an associated Args file. The standard shader search path mechanism is used when searching for shaders with search paths specified either with PrmanGlobalStatements settings or environment variables:
| OSL | RMAN_SHADERPATH | options.searchpath.shader | $RMANTREE/lib/shaders |
| Plugin (C++) | RMAN_RIXPLUGINPATH | options.searchpath.rixplugin | $RMANTREE/lib/plugins |
If both the environment variable and the attribute are set the resulting search path will be the union of the two strings.