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Re: [Public WebGL] Horrible Z buffer precision with latest FireFox.



----- Original Message -----
> Could you file a bug report about this, under Core / Canvas:WebGL ?
> 
> It's something we should fix (or work around) :-)
> 
> If you want to try stuff (since you have access to the machine in
> question; I have no problem here on my linux/nvidia system) the
> relevant code is probably CreateOffscreenPixmapContext()

... (or one of the other similar functions in that file... Vlad would know).

Benoit

> in gfx/thebes/GLContextProviderGLX.cpp.
> 
> You could try setting the requested z-buffer width to 24 bits to see
> if it makes a difference...
> 
> It's worth pasting the output of glxinfo too. Here it gives only 24
> bit depth buffers, perhaps on your system certain visuals have a 16
> bit depth buffer.
> 
> Benoit
> 
> ----- Original Message -----
> > My son just upgraded his Linux box to Firefox/Minefield to 4.0.b3pre
> > 20100723 - and suddenly his Z precision turned to crap. He
> > definitely
> > has a Z buffer - but the precision looks no better than 16
> > bit...possibly worse! This machine only has a 6800 card - but it's
> > been working perfectly well for months.
> >
> > Any clues as to what happened?
> >
> > -- Steve
> >
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