2
votes
2answers
131 views

How do you ensure consistent experience across multiple graphics cards (or even driver versions)?

So I was writing a simple 2D game with OpenGL and SDL and had this problem when there was awful tearing when running in windowed mode (even though I explicitly asked SDL_SetVideoMode to use double ...
30
votes
3answers
5k views

What is the purpose of the stencil buffer ? More precisely, what is a stencil in computer graphics?

I read the stencil word a lot, and I don't have a clue what is its real purpose in computer graphics. Seeing the picture in black and white on wikipedia, I'm still having problem with it. Why do we ...
3
votes
4answers
761 views

How do you make use of all texture units on today's graphics cards?

I saw a review of the GeForce GTX 460 graphics card. It has 56 texture units. I'm not that knowledgeable about graphics effects. But, the ones I know use around 3 or 4 texture units. In this ...