I never worked for 3dfx but do recall working with a number of their people, especially Ross Smith.
Other people mentioned:
- Gordon Campbell
- Gary Tarolli – Designer, former SGI guy
- Ross Smith
- Scott Sellers
This video clearly provides an alternative point of view:
3Dfx Demo reels:
I do have one of their boards in my collection/museum. Not sure what I can do with it these days.