View Full Version : Alpha Channel
Dan Valcich
29-06-2009, 05:46 PM
What is the best codec to use for motion graphics with an alpha channel for transparency?
For native transparency: probably annimation codec - but it can be very processor intensive... ensure you have a well preped system, SSD, and good graphics card.
Do test first to gauge performance - lower resolutions can help
Simon
SourceChild
02-07-2009, 05:48 AM
Honestly, try using standard AIC files but render them with a solid color as a lower layer that comes through the alpha. Then you can use the transparent color FX and dial in the color. I have a hundred plus pieces of content I am using on a show now which I have done this way and they work fine.
Just FYI, I had a few pieces with some foliage which was green and blue so I made by background layer red and was able to make the background only transparent which looked great.
I wouldn't suggest the animation codec unless you are only running very few layers. If this isn't an issue then Simon is right.
samsc
02-07-2009, 12:00 PM
What is the best codec to use for motion graphics with an alpha channel for transparency?
animation codec is the only codec with an alpha channel.
samsc
30-09-2009, 11:35 AM
animation codec is the only codec with an alpha channel.
i was wrong - you can also export a png compressed movie-
using millions of colours + in the export settings.
dont know about performance - but png is lossless- and relatively new compared to the animation codec.
dont know about file size - not done any real tests.
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