
HIVE OpenGL help
I've been trying to port HIVE to OpenGL for some time (multiple attempts). My biggest problem is the coordanate system. I would like HIVE to be consistant by always using the same coordanate system; origin in upper left, goes to width1,height1 in lower right. I've already tried doing calculations to convert, which works, but is terribly slow. Could someone show me how to instruct OpenGL to use a different coordinate system, or at least one that goes from 0,0 to width1,height1 (subtracting to get the new origin is quick).

Are you talking about an orthographic projection?
glOrtho lets you assign which is the top left corner.

Nope
It didn't work. I tried putting glOrtho(0,W1,0,H1,0,0); where W is the width and H is the height; it failed.
Edit:
It works! I just had to try glOrtho(0,W1,0,H1,1,1); ! I am so greatfull; I think I'll add a comment in the sources commending you! :D
