Funny paint effect

[Boudewijn Rempt]

On Thu, 16 Sep 2004, Cyrille Berger wrote:

> > I have a feeling it could have something to do with the background pattern
> > 'shining through', which would mean that the alpha compositing code in rgb
> > isn't completely dependable. I can see artefacts the size of the background
> > checks.
>
> The artefats I have noticed seems more to follow the border of tiles.
>

That's what I thought at first, too -- but I've seen some that were
smaller, 32x32, instead of 64x64. Or, and that's possible, I'm deceived
by the resolution of my display.