[SDL] sRGB alpha blending

[David Olofson]

On Sunday 27 February 2005 03.44, Albert Cahalan wrote:
[...]
> Spaceship anti-aliasing is a poor example because of the black
> background. Try airplanes against a normal daytime sky. With
> bad alpha blending, you'll get dark outlines around them.

Fixed Rate Pig uses SDL's alpha blending for all sprites, and though 
the effect *is* visible if you know what to look for, it's not very 
obvious, even against the lightest areas of the daytime sky 
background. Looks a lot better than no AA, at least! Maybe I was just 
lucky with the colors of the AA edge pixels?

(BTW, don't even look at Kobo Deluxe. Most sprites and fonts have dark 
outlines on purpose - even though you can rarely tell because of the 
dark background. Doesn't look all that great in some cases, but 
that's a different matter. :-)


//David Olofson - Programmer, Composer, Open Source Advocate

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