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Q:  Can I use 3dfx's Voodoo2 drivers to run OpenGL games on my iMac Game Wizard card?
A:  The following is from a Nov 30th, 1999 post at my www.mac3dfx.com site. You can use 3dfx's Voodoo2 drivers which now includes an opengl extension, *but* you must use the Glide extension that came with the iMac Game Wizard (Voodoo2) card, not the 3dfx glide extensions.

iMac Game Wizard/3Dfx Driver Tips: A reader sent some tips for using 3dfx's 3dfx Voodoo2 drivers (direct download link) with the iMac Voodoo2 Game Wizard card:

" Dear Mike,
The recently released 3dfx drivers for the VoodooII which include native OpenGL supprt DO work with the discontinued MicroCoversions GameWizard - sort of. You have to leave the MC drivers installed, and install everything of the 3dfx except the GlieLib 2.x. This will mean that your Glide games will run through the old driver, and the OpenGL ones run through the new GlideLib 3.x. Of course, you have to completely disable Mesa. Also, you'll need a Voodoo2.var which includes

SSTV2_GAMMA=1.9

because the 3dfx drivers default to a very low gamma.
Joel Hopwood "

Note that OpenGL games are limited to 640x480 resolution with the iMac Game Wizard voodoo2 card (due to the fact the card has only 8MB of ram). Also make sure you disable the "OpenGL ATI Renderer" extension.

Note: OpenGL 1.2.2 and later versions are reported to have problems with 3dfx cards. And there's no current OS X support for any 3dfx card (and with 3dfx out of business, it's not likely there ever will be.)

BTW - OWC sold out of their iMac Voodoo2 cards

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