Quote:
Originally posted by Humus:
The difference is quite big. The look at little similar but under the hood there's a lot of differences. In Glide you have to do all the transformations yourself, in OpenGL you just provide matrixes and then the driver takes care of the rest. OpenGL also have functions to help you setup those matrixes and perform rotations and translations. You can use OpenGL without needing to be king of linear algebra, but in Glide you really need to know your math ...
In Glide you also need to take care of texture memory management. Glide is such a thin layer over the hardware that it's hard to write new hardware and still be Glide compatible. I think Glide is one of the reasons 3dfx got stuck too long in the old Voodoo archetechture.