/display/openexr/compression

This sets the compression type for the OpenEXR output of renders. Valid options are: rle, zip, zips, piz, pxr24, b44, or b44a

/display/texture/compression

Sets the compression algorithm to be used for the internal texture driver when creating OpenEXR format textures. The default value is none. Alternate values are rle, zip, piz, pxr24, b44, or b44a

/display/tiff/compression

Sets the compression algorithm to be used for the internal tiff driver. The default value is zip. Alternate values are zip, packbits, pixarlog, lzw, deflate, or none.

/displaytype/framebuffer | /displaytype/file

Allows a one level translation of the display type framebuffer or file, as specified in an RiDisplay call, to an alternate display type. The default translations for file is tiff, and the default translation for framebuffer is to use the value of the RMANFB environment variable if set, otherwise it will use x11 or windows, depending on the system.

/errorpath

Sets the directory where the error message files are to be found. The renderer and tools will look in this directory when reporting errors.

/licenseserver

Specifies a fully qualified name of the license file. Usage of /licenseserver can include either a pointer to a license server machine, e.g. 9010@hostname (where "hostname" is the name of the license server), or an explicit path to a pixar.license file, e.g. ${RMANTREE}/etc/pixar.license. Note that the pixar.license file, in the latter case, can be either a node-locked license or a redirect to a license server.

/prman/texture/maxfiles
*maximum on Windows is 2048