>>BirAda+(OP)
Also worth mentioning, the 3dfx Voodoo SDK, docs and examples. For those like me (zero previous experience with 3D API's) it was a lot of fun to play with.
And! Still available today: DOSBox-X has Voodoo1 support built-in (or host pass-through glide support), Open Watcom C++ works well in DOSBox and will compile most examples.