Matrox and Trident were working on 3D cards around the same time, but they were leaps and bounds behind 3DFX. 3DFX also pushed their cards to developers, who were pushing 3D games like Quake, Mechwarior 2, ect.
3DFX was pushed by Nvidia, and later ATI. All chipsets had their merits and flaws, but 3DFX stuck hard to their own designs and concepts instead of going along with some of it's competator's good ideas.
Unfortunately, you sometimes have companies that fail to see that other's ideas have merit, and get caught up in their own superiority. Intel's steadfast hold onto RDRam durring the early P4 days is one example (as CPUs have gotten faster, the P4 finaly is able to reap the benifits of RDRam). HP did the same thing with color printer resolution, refusing to go over 600x600 DPI for a while, and simply coming up with naming schemes and mixing techniques to make up for it.
It just goes to show how stubborn some corperations can be.
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