Re: Texture detail and zbuffer on Impact

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Vector Technologies (vectortc++at++swissonline.ch)
Mon, 20 Jan 1997 10:51:09 +0100

We have upgraded a High Impact to 4M TRAM. The maximum texel depth is
always 16 bits, that means 4bits per channel RGBA. With 16 levels per
channel, the dithering process under certain circumstances (e.g. cloudy
sky) even gives false colors. The patches 1447 and 1574 (under Irix 6.2) do
not modify the behaviour. In the manual (paragraph 1.4, Indigo IMPACT
Graphics) however 4M TRAM should come with 48 bits texel depth.
We inputted these results last year to Mountain View, we have no feed-back
up to now.
Will this bug be fixed, or do we have to live on an Impact with these poor
texel depth definitions?
Cheers.
Alexander Knob.
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  eml: vectortc++at++swissonline.ch

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