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 Voodoo Rush 3D Card - Information regarding lack of support in 3DFX Shadow Warrior Patches
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"This patch only support cards using the Voodoo Graphics chipset (not the Rush) from 3Dfx 
Interactive.  These include the Canopus Pure 3D, Deltron Flash 3D, Diamond Monster 3D,
Guillemot MaxiGamer 3D, Orchid Righteous 3D, and Quantum 3D Obsidian cards."

The following is an official statement from 3Dfx regarding the lack of
Voodoo Rush support in the 3Dfx patch for Shadow Warrior.

"The conversion of the Build engine (used in Shadow Warrior, Blood, etc.) was originally
started and prototyped on Voodoo Graphics.  Due to the engine's span-based architecture as
opposed to Voodoo's triangle based rasterizing, there were many obstacles to overcome.
Over the course of months we were able to get Voodoo's performance better by taking some
shortcuts and focusing entirely on that piece of hardware.

Once completed, we realized that the shortcuts we took would not lend themselves well to
performance on Voodoo Rush (frame buffer memory is laid out differently for example.)
Although considerable time was spent exploring VRush support, nothing short of
redesigning the entire engine would fix this.  We came to the unfortunate conclusion that
VRush support could not be included in this product.

3Dfx Interactive remains committed to supporting its game developers and consumers for both
Voodoo Graphics and Voodoo Rush.  Although the differences between Voodoo Graphics and VRush
hardware are minimal and don't affect many games, a couple have turned up.  Unfortunately, the
Build engine is one of them.  As always 3Dfx will continue to work on getting the best and
most number of titles optimized for Voodoo owners."

Brian P. Bruning
3Dfx Interactive Developer Relations Manager