Okay I made a feature request at
http://bugzilla.gnome.org/show_bug.cgi?id=543810 but it's missing a
solution that will not remove any functionality.
Martin mentioned something about supporting auxiliary channels in RGB
mode and I'm not sure what that means so if anyone could help me out on
that or give advise on how this could work. Also
http://bugzilla.gnome.org/show_bug.cgi?id=486902 was referenced and
again, I don't see how that relates to my feature request but I am open
to hear from anyone willing to explain.
A copy of the request is below.
When I use GIMP I sometimes use the alpha channel for things like bump maps,
specular maps or even parallax maps and would be good if there was a
when you right-click the alpha layer that would enable/disable it's use for
This could have the same effect as using the threshold alpha with a
0 while it's disabled.
Another way to do it could be if you make the alpha channel invisible it
look like the threshold alpha mentioned above and when only the alpha
is selected then you could edit and apply effects to the alpha channel
as if it
were a custom channel.
This could apply with all channels but I believe the alpha channel needs
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