sure... and the docs say "...in most cases...". Not always in every
single case but rather most of the time it doesn't increase the quality.
but i was commenting to bernard about never going above .05... and since
the docs say in most cases that the quality gain is negligible, just
wanted him to be aware of what the documents say about this parameter.
nothing more.
guillaume laforge wrote:
>file:///C:/Softimage/XSI_5.0/Doc/mental_ray/manual/node76.html#INDEX184
>"Values less than /0.05/ do not further increase quality in most
cases..."
If threshold is set to 0.05 then all the contrast below continue their
flickering game :-). Very often we need smaller threshold to avoide
this game so I think
the "RTFM paradigm" is not always true.
--
Guillaume Laforge
freelance TD | cg Artist
On 6/1/06, *Steven Caron* < scaron(at)omation.com
<mailto:scaron(at)omation.com>> wrote:
well i see it daily when working with other artists shots. i can
usually
tweak the aliasing tab back into same quality zone but less time to
render. for about 1/3 of my shots i use imf_diff to make sure i
haven't
changed the output too much. my usual percent diff is below 1%. to be
honest though contrast(threshold) changes are not the only thing i
do. i
mess with filters and aa settings also...
i will also admit that in a many cases i tend to believe mental
ray docs
without question it hasn't steered me wrong yet.
send me 2 images with contrast(threshold) settings < 0.05 so i can
see?
Bernard Lebel wrote:
> Have you ever tested it, Steve?
>
>
> On 6/1/06, Steven Caron < carons(at)gmail.com
<mailto:carons(at)gmail.com>> wrote:
>>
file:///C:/Softimage/XSI_5.0/Doc/mental_ray/manual/node76.html#INDEX184
>>
>> "Values less than 0.05 do not further increase quality in most
cases..."
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--
Steven Caron
doer of things somewhat technical
scaron(at)omation.com <mailto:scaron(at)omation.com>
949-366-4422 x601
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--
Steven Caron
doer of things somewhat technical
scaron(at)omation.com
949-366-4422 x601
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