setenv GFX_ROOT /map/gfx0/common/sol # on solaris -- what about elsewhere?
add to path: $GFX_ROOT/bin
in .cshrc: setenv ARCH `gfxarch` # or sol, linux, sgi, WIN32
lives in subdirs of $GFX_ROOT/visdata
Makefile in each dir builds other derived data
populate a tree elsewhere
each subdir has links for all the others that make everything accessible transparently