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for high quality, like dvds, you're talking huge initial file size. you
figure a dvd is only 750 or so pixels wide, and a two hour movie takes
up 5GB. i think that's around 42 or 43MB per minute. i don't know
about the rest of you, but i find that making a large image and then
reducing it in a paint program comes out better than a small image done
in pov (i've only used bmp. isn't bmp also lossless but without an alpha
channel?). an 800 by 600 image is over one MB. put it in a lossless
avi and i'm not sure what size a single frame ends up (larger or
smaller). but for sure you need an original lossless copy before you go
converting it. fyi, film resolution is like 2500 or 3500 pixels wide
(maybe bigger, but those numbers stick out in my memory). one thing
i've noticed with dvd's is the ability to blow up the image to full
screen and still look good. that may just be due to superior
compression, but i can watch a movie on my monitor at resolution of 1280
by 1024 with few artifacts (although it still looks better on my tv).
anyway, the suggestions by the other guys are all good.
Jetlag wrote:
>
> news:39871AD8.11B5E0D3@club-internet.fr...
> >
> > Is there on the net some software to create high quality animation ? By
>
> POV-Ray produces high-quality animation. :)
>
> > high quality, I mean close to the VOB files found on DVDs.
> > I tried avi with a conversion to MPEG ( with avi2mpg1 : Thanks Ken), but
> > there is a limitation in size : around 360x300.
>
> From avi2mpg1 readme.txt:
> inputfile.avi A windows avi file (you can now specify multiple
> input
> avi files for encoding to a single output file)
> constrained to the following parameters:
>
> Horizontal size: < 4096 pixels
> Vertical size: < 4096 pixels
>
> [snip]
>
> Maybe you have an older version? And only use an uncompressed 24-bit RGB AVI
> as input or you won't be happy with the results. If you really want DVD
> quality then you might try bbMPEG/avi2mpg2
> http://members.home.net/beyeler/bbmpeg.html . I can't really recommend it
> since I haven't used it but supposedly it'll turn your AVI's into MPEG-1 or
> MPEG-2. Again I suggest only using uncompressed AVI's because recompressing
> lossy compression sucks... a lot... the MPEG-1 compression won't know the
> difference between the good part of an compressed AVI and the artifacts,
> it'll try to compress both equally, and waste a lot of space, and probably
> introduce more artifacts.
>
> Good Luck!
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