[Chimera-users] POV-Ray setting for movie making
pett at cgl.ucsf.edu
Mon Apr 26 16:08:27 PDT 2010
On Apr 22, 2010, at 11:13 AM, Thomas Goddard wrote:
> Hi Paul,
> Eric Pettersen, another Chimera developer, I believe tested some
> different POV-ray settings, and Greg Couch has worked on that code a
> lot. I don't really know anything about the POV-ray settings
> because I think I get better results without POV-ray as discussed by
> Elaine in a previous mailing list message.
> I'm sending your POV-ray settings question to the mailing list and
> perhaps Eric or Greg will have suggestions.
>> Thanks Tom,
>> The mpeg4 movie with qscale 1 looks pretty good. I forgot to
>> mention in
>> my first message that I was setting bitrate to 10000, and yet still
>> results were fuzzy around the edges. Seems like variable bitrate is
>> way to go.
>> Can you give me any advice on antialias method, depth, threshold
>> (currently I’m using recursive, 3, 0.3, respectively) or jitter (I’m
>> using true with an amount of 1.0). I’ve read the chimera manual
>> on the topics but I’m still confused, can’t see much difference
>> when I
>> change variables one at a time. Do you have favorite settings for
>> variables? Time to process, as long as it stays within a week for a
>> frame movie is fine, the product will go out as supplemental material
>> for a paper, so I’m willing to wait if some change to the settings
>> using now will make a difference.
It's been awhile since I fiddled with the POV settings, but I guess I
do have two recommendations:
1) Move the antialias threshold back to at least 0.5 -- and I'd
suggest using the default 1.0. In my tests I found no visual
difference whatsoever between 0.3 and 0.5 and minimal difference
between 0.5 and 1.0, whereas it makes a considerable time difference.
2) Turn off jitter. As it says in the documentation it looks bad in
movies (particularly if you are using text labels).
UCSF Computer Graphics Lab
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