 | | | glow feather problem | glow feather problem 2004-03-04 - By Morten Bartholdy
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+ is that your name? ;)
Turn on dithering - it will help. The banding is a limitation of the 8 bit
colorspace, as there are only 256 levels of grey and in this case you see
the step between 2 levels where there is a large gradient area with only
subtle change. Only dithering can help until we get 10 bit or more for
displaying our final material. Obviously if you output to film you could
render 16 bit imagery which would deal with the problem.
Best Regards
Morten Bartholdy
3D Animator & Visual Effects Supervisor
Colorshop VFX
Denmark
-- -- Original Message -- --
From: "+" <softimage@(protected)>
To: <XSI@(protected)>
Sent: Thursday, March 04, 2004 10:07 PM
Subject: glow feather problem
> hello
>
> unfortunately i didn't find any answers on boards & list archive so i
> hope someone could help me asap on this problem...
>
> i added a glow to a constant ball and there you see it has a "banding"
> effect and not a smooth feather... why that? - here is the little
> screenshot: http://www.mat0.net/temp/ball.jpg
>
> and no it's not because of jpg comression (is high)... and the preview
> region is set on show rgb only...
>
> thanks for help in advance
> + mato
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