On Thu, Jan 18, 2007 at 08:04:28PM +1030, David Gowers wrote: > >I like the idea of using a layer and a palette to draw the zones. > >Even though I talked about hard edges, I (and everyone else drawing) > >need anti-aliased ones in almost all cases :} > > > Well, the simple case of that is easily done -- I just inserted two lines in > my zonemap tool that automatically antialias the zone mask using potrace. I > think that repeatedly drawing in a non-binary selection is a mistake, though > -- layer masks or 'preserve layer alpha' do it better. > > I rarely ever use antialiased selections for drawing, only exclusively for > fills (either color fills, alpha-clearing fills, or editing layer masks). > Drawing into AAed selections makes selecting objects a no-win (ie. cannot > get a perfect result, because the colors along the edges are uncontrolled) > situation, and dirties colors. I usually work with a bunch of alpha-locked layers (paint shape in flat-colour, lock alpha, paint shadows, light, texture ...) I guess the perfect zone implementation would actualy need some overlap to have the same effect of alpha-locked layers. > In fact, the best simple solution could be to copy selection masks onto > layer masks. Like, you have a 'painting' layer, and when you change zones: > 1. Any changes are saved onto the underlying layer > 2. The entire content of the underlying layer is copied to the paint > layer > 3. The layer mask is copied from the next zone-mask (channel) > > This would play well with my 'apply paint' plugin, which applies any paint > on a layer (specially marked by name, beginning with the character '+') to > the underlying layer and then clears it to a neutral color. In short, drawing zones happening on the level of layer masks? Another model I thought about would require a graph, so I guess it's really a bit far out for GIMP: Having a layer/node for compositing drawing layers/nodes. It would be like a free-form multi-split view on a number of layers. Drawing starting in one zone of the view and continuing the stroke outside of it could paint on the underlying layer/node, maintaining the advantage that using layers has now: you can draw below a layer and later change the shape of an upper layer without having to fill a gap. -- Thorsten Wilms Thorwil's Creature Illustrations: http://www.printfection.com/thorwil _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
