OpenGL define vertex position in pixels

Question

I\'ve been writing a 2D basic game engine in OpenGL/C++ and learning everything as I go along. I\'m still rather confused about defining vertices and their \"position\". Tha

Answer 1

Google for "opengl rendering pipeline". The first five articles all provide good expositions.

The key transition from vertices to pixels (actually, fragments, but you won't be too far off if you think "pixels") is in the rasterization stage, which occurs after all vertices have been transformed from world-coordinates to screen coordinates and clipped.