Re: Indigo2 Impact Channel Option (ICO)

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Simon Bennett (simonb++at++wormald.com.au)
Thu, 11 Apr 1996 13:17:54 +1000 (EST)

>
> First question:
>
> How many SVGA channels are generated by the ICO?
>
> I have 2 brochures describing the Impact product line.
> One says the ICO can generate 4 SVGA channels, the other
> says 2 -- on the Maximum Impact only. Which one is correct?

No idea. But I bet somebody out there knows!

>
> Second question:
>
> Is full-screen anti-aliasing available when using SVGA on the ICO?

>From a previous posting Sharon Clay answered...(wrt to can you multi-sample on
an ICO)

What you get is not multisampling but minification.
Your display area (and thus your GL viewport) is twice the size of the
video output and the full-channel image is filtered down as part of scan-out.
This is all done independently of the GL which means that you do also have to
change the sizes of things that have a pixel-specific size, such as lines,
points, bitmaps, and pixel writes.

src.

--
-----{-----{---++at++   -----{----{---++at++   -----{----{---++at++   -----{----{---++at++
Sharon Rose Clay (Fischler) - Silicon Graphics, Advanced Systems Dev.
src++at++sgi.com  (415) 933 - 1002  FAX: (415) 965 - 2658  MS 8U-590
-----{-----{---++at++   -----{----{---++at++   -----{----{---++at++   -----{----{---++at++






+----------------------------------------------------------------------------+
  Simon Bennett       simonb++at++wormald.com.au
  Wormald Technology  Advanced Systems Engineering Ph: +61 2 9981 0611 (x512)


			Common Sense doesn't seem to be

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