2D using OpenGL

[jdarling]

Have a look at the SDL code here -
http://osdl.sourceforge.net/OSDL/OSD...-examples.html
It shows another way of achieving colour keyed transparency.

Don't forget that since you are using OpenGL you will need to tell users of your software to create Power of 2 textures if they want the least amount of hassle amongst graphics.

Or convert all of the graphics to power of 2 textures on the fly if you don't want to place the limit on your users. Many times you can combine textures and then perform fills as necessary behind the scenes.