I'm making an application with two windows, one a windows form that serves as a controller and the other an instance of unity that renders what the form says. Well the problem I have is when using videos with transparent backgrounds in .avi format. What I want to do is to send the address of the file to unity, which I have already achieved with the url of the videoPlayer, but the Alpha channel does not work.
I tried cheking with DiVinciResolve if the video has transparency, it does. I also tried adding diferent materials.
I alredy found the answer. You have to use a tool like FFmpeg to convert the video into a row of images an then load the images in order in Unity.