Re: [Gimp-developer] astronomical use of GIMP
On Fri, Nov 19, 2010 at 03:13:24PM +, Øyvind Kolås wrote: Almost all the foundation work for supporting this is already done in GEGL/GIMP, the only missing bits is making a real decision on how things are done in the UI as well as probably starting to let GIMP use OpenRaster instead of XCF for composition storage. The projection of GIMP can be made to render using a GEGL graph, in this graph any arbitrary operation can be inserted anywhere in the hierarchy providing a combination of the features photoshop call adjustment layers/layer effects. Artificially limiting the selection of ops doesn't seem good. A couple of years ago I tried exchanging the opacity op in the GIMP code for the layer stack with a dropshadow op, this worked fine and allowed to have live drop-shadows with an adjustable parameter... thus one can almost say that GIMP can already do these things and more, it just doesnt expose them to the user in any useful form. These are all wonderful news to me... Thanks to all developers! -- Marco Ciampa ++ | Linux User #78271 | | FSFE fellow #364 | ++ ___ Gimp-developer mailing list Gimp-developer@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
Re: [Gimp-developer] astronomical use of GIMP
Maybe it's worth taking a look at point 6 a. on http://chandra.harvard.edu/photo/openFITS/casa.html: Another limitation of using GIMP for a 3 color image is that GIMP does not use what are known in Photoshop as Adjustment Layers. Adjustment Layers allow you to make changes to your layers in a non-destructive way. That is to say that you do not actually change the layer itself, you apply an additional layer to the original layer to make changes. This preserves the original layer so you can always go back to its original state at any time. The changes we'll make here have to be applied to the original layer, and once the file has been saved and closed, you cannot back out of those changes. One workaround to this is to duplicate your original layers and do all of your work on the duplicates so that you can always go back to the original if need be. How about adding this missing feature to GIMP? Best wishes, Łukasz Czerwiński On Thu, Nov 18, 2010 at 08:36, Marco Ciampa ciam...@libero.it wrote: With last discover of a little jung black hole by NASA, I have found this project on the Chandra X-ray observatory site: http://chandra.harvard.edu/photo/openFITS/ IMHO it can be very effective to spread the use of GIMP having a page dedicated to the interesting / useful real case of GIMP use. Forgive my bad english... -- Marco Ciampa ++ | Linux User #78271 | | FSFE fellow #364 | ++ ___ Gimp-developer mailing list Gimp-developer@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer ___ Gimp-developer mailing list Gimp-developer@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
Re: [Gimp-developer] astronomical use of GIMP
2010/11/18 Łukasz Czerwiński wrote: Another limitation of using GIMP for a 3 color image is that GIMP does not use what are known in Photoshop as Adjustment Layers. How about adding this missing feature to GIMP? You know how to submit patches, don't you? :) Alexandre Prokoudine http://libregraphicsworld.org ___ Gimp-developer mailing list Gimp-developer@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
Re: [Gimp-developer] astronomical use of GIMP
On Thu, Nov 18, 2010 at 6:19 AM, Alexandre Prokoudine alexandre.prokoud...@gmail.com wrote: 2010/11/18 Łukasz Czerwiński wrote: Another limitation of using GIMP for a 3 color image is that GIMP does not use what are known in Photoshop as Adjustment Layers. How about adding this missing feature to GIMP? You know how to submit patches, don't you? :) That's not a very useful reply. Adjustment layers have been discussed extensively in the past, and they are not something that a new user could simply code up and send in a patch for. Even PhotoShop only allows adjustment layers for a specific set of adjustment types, because it's essential that adjustments can be calculated very rapidly. Anyway, one of the advantages of GEGL is that it may make this sort of thing easier to implement. -- Bill ___ Gimp-developer mailing list Gimp-developer@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
Re: [Gimp-developer] astronomical use of GIMP
2010/11/18 Łukasz Czerwiński lc277...@students.mimuw.edu.pl: Another limitation of using GIMP for a 3 color image is that GIMP does not use what are known in Photoshop as Adjustment Layers. Adjustment Layers How about adding this missing feature to GIMP? Best wishes, Łukasz Czerwiński I am under the impression that the functionality of adjustment layers are a very tiny subset of the capabilities that GIMP will have if GEGL is ever integrated. ___ Gimp-developer mailing list Gimp-developer@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
[Gimp-developer] astronomical use of GIMP
With last discover of a little jung black hole by NASA, I have found this project on the Chandra X-ray observatory site: http://chandra.harvard.edu/photo/openFITS/ IMHO it can be very effective to spread the use of GIMP having a page dedicated to the interesting / useful real case of GIMP use. Forgive my bad english... -- Marco Ciampa ++ | Linux User #78271 | | FSFE fellow #364 | ++ ___ Gimp-developer mailing list Gimp-developer@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
