On 7/7/07, Dave LeCompte (really) <[EMAIL PROTECTED]> wrote:
"Ian Mallett" <[EMAIL PROTECTED]> wrote: > Try looking at glOrtho2D() or something like that... Yes, glOrtho() or glOrtho2D() both work. > Why do you want to use > PyOpenGL for 2D-ness? It's much better suited to 3D stuff. Well, just because OpenGL was designed for 3D doesn't mean it's not also a very good tool for 2D. Some reasons I prefer OpenGL for 2D to SDL's drawing code: - performance - sub-pixel positioning - scaling/rotation - blending - vertex coloring - lots of good documentation, lots of sample code, lots of tips on optimizing performance available on the web Basically, a lot of the graphical features I might want to use in a 3D renderer, I might also want to use in a 2D renderer. > I've always > found it easier to use pygame for 2D games. Oh, and ummm... Don't tell > Silicon Graphics, but I've found pygame is much much faster at 2D. I'm in the other camp - I find OpenGL easy and fast, and if I want to reuse code from a 2D game in a later 3D project, the port will be much easier than if I have to rewrite it from SDL to OpenGL.
Yes, by far an large, OpenGL is better at 3D, but 2D? I don't know. My experience has been that OpenGL is slower, but then again, I was new to that sort of thing. It would be good to run a few tests to confirm one way or the other. And yes, you are right. Porting code would be much easier without those changes. -Dave LeCompte
