More historical context:

http://www.azillionmonkeys.com/windoze/OpenGLvsDirect3D.html

https://en.m.wikipedia.org/wiki/Fahrenheit_(graphics_API)#Hi...

https://softwareengineering.stackexchange.com/questions/6054...

There was another blog with a detailed rundown on the politics behind the Fahrenheit drama but the site wend down 10 years ago and I can't remember what the link was.

I almost forgot about that whole mess. OpenGL was always a faster and better choice to run, but D3D and MS knew this and beat it out of PCs with the pure business force that made MS the company that it was.

Short memories. DirectX was software only when it shipped in 1995 and accelerated OpenGL wasn't a thing at all on consumer hardware then.