We have this feature in progress, but need some input from you.
Currently the video texture can have opacity smaller than 1.0, but this setting applies to the whole texture. Do you see practical use cases where you would like to set a different non-zero opacity but only for some areas of the texture?
We wonder if we should support a binary mode, where video pixels close to some selected color (blue, green or some other) are discarded. Or do we need some more advanced settings and shaders that would allow to modify opacity of some pixels based on their color. So, for example, you will have a texture with some pixels with opacity 1.0, some with 0.7, and some with 0.0.