3dfx Interactive was a company headquartered in San Jose, California, founded in 1994, that specialized in the manufacturing of 3D graphics processing units. They were pioneers in the field from the late 1990s until 2000.
The company's original product was called Voodoo Graphics. It was an add-in card that accelerated hardware 3D rendering but not 2D. Despite this drawback, it was a massive success. The company's follow-up, Voodoo2, was equally popular. It became standard for 3D games to offer support for the company's Glide API.
The success of the company's products led to renewed interest in 3D gaming, and by the second half of the 1990s, products combining 2D graphics with reasonable 3D performance were appearing. This was accelerated by the introduction of Microsoft's Direct3D, which provided a single high-performance API that could be implemented on these cards, seriously eroding the value of Glide. While 3Dfx continued to offer high-performance options, the value proposition was no longer compelling.
3dfx rapidly declined in the late 1990s and was acquired by Nvidia on December 15, 2000. The purchase was accounted for as a purchase by Nvidia and completed in the first quarter of the fiscal year 2002. 3dfx stopped supporting their products on February 15, 2001.