From: Marcin Romaszewicz (marcin++at++asmodean.engr.sgi.com)
Date: 01/23/2002 12:02:17
On an IR, you can get a visual with 12 bits/component for RGBA or 16 bits
for component with intensity and alpha. This translates to 4k and 64k
different colors that can be stored in the framebuffer. Now, on the DAC
side, I believe that an IR scans out video with 10 bit dacs, so you can
see 1k discernible colors.
-- Marcin
On Tue, 22 Jan 2002 kcc++at++dynres.com wrote:
> Hi Professionals,
>
> Please help.
>
> Is there a way to find out how many different colors can a pixel display on our SGI Onyx2?
>
> My real question is: under the same lighting condition (assume we turn off ambient, diffuse and specular lighting, only allow emision),
> what is the minimum dr such that the color of mtl1 looks different than mtl2 on screen
>
> pfMtlColor(mtl1, PFMTL_EMISSION, 0.0f, 0.0f, 0.0f);
> pfMtlColor(mtl2, PFMTL_EMISSION, dr, 0.0f, 0.0f);
>
> Thank you.
>
> Kevin
>
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