VFB Composite masks and alpha

[Jiri.Matys]

Hi,

I try to manage composite mode with masks so I dont need PS in this project but I cant make it to work.

I put Constant layer below and on top my RGB element. Problem is that alpha is ignored and I cant find a way I can use my alpha channel to RGB channel. There is multimatte, integer and cryptomatte, but I just want to use standard alpha. How I can do that?

Thank you.

[hermit.crab]

There's no way to do that, currently. Alternatively, you could use the Background layer with a solid color. Here's a script that does it automatically.

[Jiri.Matys]

Oh, that is disadvantage that I cant use alpha.

Ok, I will look at it, thank you.