does anybody knows of and/or uses the GEM_SINGLE_CONTEXT feature of Gem as described in http://gem.iem.at/documentation/faq/can-gem-run-on-a-3dfx-voodoo-card
in the course of cleaning up the code i would like to either remove this hack (or make it more general).
i don't think that anybody still owns a 3dfx voodoo card, not to think about still uses it for Gem.
fmadsrt IOhannes