Function to apply processed textures to the alpha channel textures

[MoArtis]

This will allow us to check quickly the match between the mask texture and the background.

It will also make manual adjustment of these alpha channels easier by painting more or less transparent pixels on these texture and directly "see" the result.

From this:

To this:

This will quite certainly increase the size of the alpha channels though. So it needs to be optional and used when needed.

[saeedalshaikhpygas]

can confirm issue have been fixed

[MoArtis]

Thanks! @saeedalshaikhpygas I'm closing this issue.

[MoArtis]

oh lol I was confused... This is not a texture issue though. Sorry. It's a feature to help us tweak the mask's alpha channel if needed. But yeah it looks like this other issue #1 😂