 | | | Digest Number 3503 | Digest Number 3503 2005-10-03 - By Doug Schafer
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I don't have any more ideas for what causes the artifacts....but I have an
approach to use to check for problems...
- to isolate as a Carrara induced problem....find in the rendered movie file
what frames are problematic; then go to Carrara animation window and look in
the same time frames and check all (expand all) rows looking for key frames
and tweeners in paces you would not expect. Auto key framing, and even
manual tweening/key frames can cause extra stuff to creep in usually by
human error not recognizing a key frame was created.
- to isolate as a render/PC system problem, try rendering a single frame to
see if a single image renders differently than a movie...or render only a
few frames...like .5 seconds around the image and study the results.....and
be sure NOTHING else is running. I have had several small glitches because
PC did an interrupt internally trying to do something else and it glitched
Carrara (or some other program) for milliseconds, maybe microseconds...but
that's all it takes to screw up one frame.
- Also see if the problem is fully repeatable...if so, its either a Carrara
setup problem or an internal bug.
- Did you import anything? sometimes that is an error source.
- Try some other render settings and compare to see if it helps/hurts/no
change...sometimes its a setup choice or a shader or light or??? Pick it
apart to find the usual suspects.
You sometimes have to play CSI or Sherlock Holmes to find the source...but
of course Eovia guys are good at that too.
Doug.S
> Date: Fri, 30 Sep 2005 20:06:04 -0000
> From: "eric3ddd" <eric3ddd@(protected)>
> Subject: NPR render bugs
>
> I posted a test movie at
> http://studiodubois.com/studio/studio_2b.mov (it's a 17Mb
> Quicktime movie) rendered in NPR.
>
> Some frames show perspective lines all the way to the vanishing
> point. Other frames have
> an area that rendered black or very dark gray. Does anyone have
> an idea of where these
> artifacts could be coming from?
>
> Eric
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