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exporting animation problems

Posted: Sun Aug 30, 2009 11:40 am
by furrymaster
he everybody, i finally reached to end a simple animation of aproximately one minute, but when i clicked to export animation, i saw that the procces takes a few hours for a minute of animation, and when it ends, the resulting video file is a 3 gigabytes avi that can't be opened -.-U
anyone can help me?

En español (no es traduccion, lo escribo como me sale del alma xD)
Hola a todos, ayer finalmente conseguí terminar mi primera animacion, de un minuto y pocos segundos, el caso es que cuando le dí a exportar animacion... pues resulta que tarda unas cuantas horas, y cuando termina, el archivo ocupa sus buenos tres gigas, y encima no puede abrirse.
Alguien podria ayudarme o decirme que podria hacer?

Posted: Sun Aug 30, 2009 12:27 pm
by slowtiger
Welcome to the wonderful world of video files. Yes, if you save your animation uncompressed, you will end up with big files. I use a codec like "Uncompressed 4:2:2" only if I have to deliver my work to a TV station, or if I want to further edit it, which requires best quality. This is also the codec I choose to archive my stuff. Think of it as a "best quality master" file.

See http://www.fastvideoindexer.com/article ... eoSize.htm to calculate raw video sizes. I assume that you use a standard TV resolution for your film. If you use something like HDTV, rendering times will increase, and so will the file size. I have video files of 20 or 30 GB here, which really gets impractical on my machine.

In order to get smaller files you need to choose a different codec with correct settings. H.264 is a good one in terms of saving disk space, however, you might not be able to render directly from AS into it, only through a video editing software. MPEG-4 is almost as good. You should take a smaller test before you start the long render, say some 3 seconds from a part with lots of detail, and render it with the same codec but different quality settings, so you can judge the result.

Posted: Sun Aug 30, 2009 2:07 pm
by Mikdog
I'm not sure what 4:2:2 is. Anyone else know? Googling it now.

Posted: Sun Aug 30, 2009 2:35 pm
by slowtiger
It's a shortcut term relating to the different resolution of brightness and two colour channels.

Posted: Sun Aug 30, 2009 2:41 pm
by Genete
To render a 'master' you should use PNG sequence. It has many adventages:
1) You can render partial portions of the total movie without waiting it to finish all the render to see partial results.
2) If something fails during rendering (i.e. power supply) the rendered frames hasn't to be rendered again.
3) Treatment in an external video editor to produce any kind of later export (compressed, uncompressed, other sizes, etc.) is granted for any kind of machine or operating system (it doesn't rely on any codec)

-G