from the Warp3D "Problems" readme:
Voodoo 3:
The Voodoo 3 driver is reported to work with the following revisions
of the graphics board drivers, and should work will all later versions:
Picasso 96: Picasso96API.library 2.300
rtg.library 40.3992
3dfxVoodoo.chip 6.375
Prometheus.card 6.51
CyberGraphics4: cgxsystem.library 42.5
voodoo3 Monitor 4.3
To use the PPC driver in conjunction with WarpUp software, the following
environment variables should be set:
PowerPC/force 1
PowerPC/gfxaddr $xxxxxxxx
The installer will try to figure out the gfxaddr setting by itself. If it fails,
you have to do it yourself. The gfxaddr variable should be set to the Voodoo3's
graphics memory base address. The method to find this depends on the PCI bridge.
Consult your documentation on how to list the installed PCI boards.
Read the docs, sometimes could help ;-)