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yk3d
09-09-2006, 03:23 PM
Hello!
I would like to know if anybody in the industry works with PNG sequences in posproduction instead of TIFFs or TGAs. I would like to hear about pros and cons of using this format.
I work for archviz company and we do lot of animation that we used to render as tga sequences, and then do posprocessing in After Effects and finally burn it as DVD. And now I'm thinking to switch to PNGs due to it's much smaller file size compared to TGAs and so needed support for alpha channel. and the file size is an issue because I work on my sequences off the network server.

I was wondering, since the PNG is a compressed format, would it actually be slower to work with in After Effects due to constant uncompressing?

Thanks!

beaker
09-09-2006, 07:39 PM
I used png for a while, but they are very slow to access for compression/decompression (not all compressions are created equal). Personally I prefer IFF/SGI/EXR. Exr being the smallest (smaller then png) and all of them compress/decompress much faster then PNG and all support up to 32 bit float.

If you really need to use Tiff, then just use it with LZW compression(which most apps support and is pretty damn small and close to the size of a png file).

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09-09-2006, 07:39 PM
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