[rescue] Re: SGI Onyx4 - uses ATI graphics chips (sigh)

Joshua D. Boyd jdboyd at celestrion.celestrion.net
Fri Aug 22 13:54:12 CDT 2003

On Fri, Aug 22, 2003 at 02:46:57PM -0400, Aaron Finley wrote:
> >A 24bit per pixel display and a 32bit per pixel display are virtually
> >always the same thing.  The 32bit per pixel display is still only
> >feeding 24bits per pixel to the RAMDACS, so of course the difference is
> >imperceptible, because there is no bloody difference.
> Compositing applications: alpha channel.

If there is a bloody alpha channel in any image on the screen, it get
bloody dropped when it hits the ramdac in the vast majority of normal
circumstances.  Unless you happen to actually be using a platform where
the alpha channel is transmitted down the wire in some analouge form as
it leaves your computer, please stop mentioning it.  Yes they exist, but
unless it is being used by the RAMDAC it isn't relevent.

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