by leileilol » Mon Feb 17, 2014 11:14 pm
I always assumed d_ is for drawing and r_ is for rendering, telling what d_ to draw. d_ regards the software rendering driver, and gl_ is the GLQuake equivalent.
I love the d_. My favorite files to hack up in the source were d_'s. Too bad I never kept gl_ in sync with the changes, and because of that, no one gave a rats ass about what I did to the d_.