Re: OpenGL states and performances

fungus wrote:

> Alpha blending doesn't do anything unless you have semi
> transparent pixels. When alpha=0.0 or alpha=1.0 then it's a
> waste of cycles.

And usually you got semitransparent pixels when rendering
sprites. Say the OP is creating the sprites with, say Photoshop,
with multiply layers. Then the transition between full opaque
and full transparent may cover 2 or 3 pixels.

Or assume, some sprites are created with a vector illustrator and
the result rasterized with antialiasing enabled. I suggest you
draw a circle with inkscape, ex****t it to a bitmap and have a
look at the edge zoomed in by a factor of 20.

Wolfgang Draxinger
-- 
E-Mail address works, Jabber: hexarith@[EMAIL PROTECTED]
 ICQ: 134682867