Jean-Christophe Dubacq <[EMAIL PROTECTED]> writes:

> I did post to gimp-devel: so that there may be a possibility to directly
> edit the alpha channel of a layer (as there is the possibility of
> directly painting onto only the blue layer, or red or green) in the
> future.

Please note that in 1.3 the alpha channel is treated just like the
color channels. What you ask for above would be a different thing.
If for example you switch off all channels but the blue one, all paint
operations will only affect the blue channel. This doesn't change the
way the paint tools work, it only locks the pixel data of all channels
but the blue one. For the alpha channel the behaviour is just the
same. Switching off all other channels keeps you from changing the
color channels but still painting increases the opacity, erasing
decreases it.

Gimp-developer mailing list

Reply via email to