i have been trying to paint on a layer, that's over a visible image, that i don't want to touch.
As in gluing objects over a transparent (invisible) sheet of glass.
i would like to paint, mixing colors, gradations and textures. BUT, keep its interactions
restricted to the layer that i am working on.
i would like to be able to build up textures, using this technique of stacking up layers.
Then, use the transfers modes and mix sliders, if needed, to combining or blend them.
i have read most of what is out here, in this forum, and in its related sites.
And, i have checked SA's preferences, the top Menu and the editor's panels.
i have spent hours hitting keys, like a monkey. Any key that in any way seems,
to be related to anything alpha.
what am i missing?.
Is there anything, that would help to make the using of the alpha capabilities of SA,
a little more tearless?
(and for my little brain, a little more-a lot-obvious) like, well, this alpha issue: transparent!
something like, "press here to activate -all and any- alpha"