问题
I am researching how to play alpha videos in processing to make augmented reality. What is the format and encoding needed to render video files with alpha channel?
When I do this in Unity I use a special shader and video format so can use luma cut, whereas in the same video you put the white and black in one side (or up) and the color in the other side (or down), then the shader makes "the magic" and leaves the color over to cutted image.
Here is a link to previous post: Video with alpha channel in Processing
来源：https://stackoverflow.com/questions/36017467/video-with-alpha-for-processing