On 5/9/07, Øyvind Kolås <pippin@xxxxxxxx> wrote: > There is no real equivalent to a Channel Mixer operation at the moment. Does GEGL support single-channel (plus maybe alpha) output/processing? > When it comes to how an array of values are best expressed, there > probably are some examples in GIMP plug-ins. To be honest, I'm not sure if I want to do this with an array of values, for the simple reason that if you're using floats for image processing, your array either has to be pretty big or you're losing precision. I'd prefer either for GEGL to have some curve data structure that can do linear and spline interpolation, or for the operation to just take a user-implemented function which can compute any curve value. The two approaches can be combined, too - allow the user to pass an arbitrary function, but provide a default one with a curve data structure for people who don't need the flexibility. Another thing that I'll need sooner or later is brush painting (for dodge/burn functionality). I saw in your FOSDEM talk that that's planned, or at least considered, for the future. Could you give an outline on how that would or could be implemented? Mark -- Mark Probst http://www.complang.tuwien.ac.at/schani/ http://www.flickr.com/photos/schani/ http://schani.wordpress.com/ _______________________________________________ Gegl-developer mailing list Gegl-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gegl-developer
