...

lpe:nothruput;noinfinitecheck;noclamp;unoccluded;overwrite;C[<RS><.U4>]{3}[LO]

Example File

You can download the RIB file pxrSurfaceUserColor.0001.rib
Note the Dome Light path is "C:/Program Files/Pixar/RenderManProServer-22.5/lib/RenderManAssetLibrary/EnvironmentMaps/Outdoor/GriffithObservatory.rma/GriffithObservatory.tex" and should be replaced to fit your installation path of RenderMan assets.

You can alter the DisplayChannel LPE lines at the top of the file to generate the different images on this page, some have been included by default to get you started.