Before revision: OpenGL appeared in the early '90s as a professional graphics API, but originally suffered from performance issues which allowed the Glide API to become a dominant force on the PC in the late '90s.3dfx Glide API These issues were quickly overcome and the Glide API fell by the wayside.
After revision: OpenGL was introducedby SGI in the early '90s as a professional graphics API, but originally suffered from performance issues which allowed the Glide API to become a dominant force on the PC in the late '90s.3dfx Glide API These issues were quickly overcome and the Glide API fell by the wayside.