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HINT: In many cases, a clean green or blue background can be used instead of true transparency. You must also use an application that’s capable of reproducing and/or generating transparency information, such as Adobe After Effects. This is sometimes called “Millions+Alpha”.

The “+” at the end stands for the transparency information. If exporting the video, set to use “Millions+” of colors. In order to include transparency information in the video file, you must choose a codec that supports this, such as the Animation or HAP codecs. Such transparency can either come from the source material (for example, a computer generated animation), or be added afterwards (for example a mask or color key applied to a video clip).īeing able to create arbitrarily shaped videos, or videos with holes in them, means you can combine videos and still images in many creative ways. Some applications support inclusion of transparency information in the gene­rated video file.