How to use aximmetryr to output transparent channel video?（α video）
给泽泽一个面子
Ahmed@Aximmetry
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Hello,
You can record the keyed footage with a codec that records the alpha channel separately within the video. Such codecs are QT RLE RGBA, Cineform, and image sequences recorded in TGA, PNG,and TIFF.
It should something like this:
Next, click on the Video Recorder and make sure Alphais switched to On, Framerateis set to Realtime, andVideo Format is set to QT RLE RGBAor Cineform or any of the above-mentioned image sequence formats.
The second way is to use an Alpha Splitter and record the two channels with two separate Video Recorders. It should look something like this in the Flow panel:
Please, note that to do this you need an Alpha Splitter node connected to the Keyer__All compound in order to split the Alpha component from the original RGB video signal. This way you can connect both the RGB and the Alpha components of your video signal to a separate Video Recorder individually.
In this example, we have used a Pin Collector special node (named Alpha Split rec on the screenshot above) to be able to press record on both Video Recorders at the same time. We then added the Pin Collector to the Control Board.
You can also record just the alpha channel:
You can also send the signal straight to an output in case you want to use it live (for e.g. with NDI):
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Hello,
You can record the keyed footage with a codec that records the alpha channel separately within the video.
Such codecs are QT RLE RGBA, Cineform, and image sequences recorded in TGA, PNG, and TIFF.
It should something like this:
Next, click on the Video Recorder and make sure Alpha is switched to On, Framerate is set to Realtime, and Video Format is set to QT RLE RGBA or Cineform or any of the above-mentioned image sequence formats.
The second way is to use an Alpha Splitter and record the two channels with two separate Video Recorders.
It should look something like this in the Flow panel:
Please, note that to do this you need an Alpha Splitter node connected to the Keyer__All compound in order to split the Alpha component from the original RGB video signal.
This way you can connect both the RGB and the Alpha components of your video signal to a separate Video Recorder individually.
In this example, we have used a Pin Collector special node (named Alpha Split rec on the screenshot above) to be able to press record on both Video Recorders at the same time.
We then added the Pin Collector to the Control Board.
You can also record just the alpha channel:
You can also send the signal straight to an output in case you want to use it live (for e.g. with NDI):
Best regards,