Quote:Original post by Eber Kain

I would think that calling glLoadMatrix is faster than glOrtho or another function that has to re-calculate the matrix every frame.

Sure, but in the method you posted you call glOrtho as often as I do. :) So where's the performance loss ?

And while you're pointing correctly that glLoadMatrix may be faster than glOrtho, I'd like to point that glGetDoublev is much slower than any kind of matrix operation. In general, anything read back from the server side should be discarded when you look for the highest performance.

Quote:Original post by Eber Kain
In the code I posted, you call Perspective#D once in your entire program.

Yes it is called thousands of time during the game, but what's important is that it's called once PER FRAME. It's true that optimizing every part of the engine is always a gain, but it's also true that if the performance gain makes almost no difference you'd better spend your time on other optimization things that will significantly improve frame rate, and come back later (probably in the end) on such negligible improvements.

Quote:Original post by Tube
OKey GRATE so now how d0 I trun this into a gaeM?!?!?!????

Sure, I have the three lines of code solution that makes anything a great game everyone would love. Mind me if I post it later ?