[Gimp-developer] Re: Edit Alpha as Mask
[EMAIL PROTECTED] (2003-09-09 at 2128.34 +0200): On a related note: In 1.3 we introduced the possibility to initialize the mask from the layers alpha channel. This is still unfinished since 1.2 has that option too. What I think was added is inverse option and selection and grayscale-copy modes. it should probably transfer the alpha channel to the mask by making the layer all opaque. The open question here is if this should be the default behaviour. It might be confusing since the other ways of initializing the layer mask don't touch the layer's alpha channel. Any opinions on this, anyone? I would add option to clean alpha channel. Probably a name like Discard alpha channel contents afterwards should be fine (except that you will still have alpha channel :-/ ). Reset alpha channel afterwards maybe? GSR ___ Gimp-developer mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-developer
Re: [Gimp-developer] Re: Edit alpha as mask
Hi, 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. Sven ___ Gimp-developer mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-developer
