Re: OpenGL states and performances

On Jul 7, 7:27=A0pm, Wolfgang Draxinger <wdraxin...@[EMAIL PROTECTED]
>
wrote:
> karim.at...@[EMAIL PROTECTED]
 wrote:
> > Sorry, I made a stupid mistake... :o))
> > I meant: glEnable(GL_ALPHA_TEST) and not
> > glEnable(GL_ALPHA_CHANNEL).
>
> I wouldn't use alpha test. It cerates jaggy edges.

That depends on the resolution of the sprites. If you're
not zooming them then ALPHA_TEST is fine.

> In 2D tile based application you can use blending w/o problems

Blending is slower because you have to read the frame buffer
to do the calculation.

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