Watch the video:
Timestamps:
0:00 - Explanation
0:50 - Getting a greenscreen video (for transparency test)
1:16 - Remove greenscreen
1:34 - Using Quicktime (Video + Alpha in 1 - LARGE SIZE - 100MB)
2:16 - Exporting mp4 with alpha! (2 videos, 1 being an Alpha layer)
3:17 - Using an Alpha layer video in Premiere Pro (SMALL SIZE - 10MB)
4:08 - Size vs Quality
4:38 - An odd exception
7:50 - Performance difference & Nesting tip
Need to save videos with transparency, but tired of HUGE files? Compress a few hundred MB into a handful! Just encode the alpha layer separately and import them back. With minimal effort: You can save time and drive space! Alpha mask videos in Premiere Pro are explained in this video, as well as exporting Alpha only videos.