On Sat, Jun 20, 2009 at 12:07 PM, yahvuu<yahvuu@xxxxxxxxx> wrote: > hi, > > Chris Mohler schrieb: >> On Sat, Jun 20, 2009 at 11:27 AM, yahvuu<yahvuu@xxxxxxxxx> wrote: >>> i assume the temporary layers are mostly grayscale? >> >> Usually RGB layers, or grayscale channels. > > sorry, imprecise question. I mean, if you use a temporary RGB layer, > it's content will still usually be just grayscale, effectively used > as a mask. Assumed correctly? Not necessarily - consider another scenario: mixing two spot colors to create a third color. More accurately, consider an image (RGB) that is primarily three colors, and then attempting to print that image in two colors, getting as close to the original RGB artwork as possible (the number of spot colors is a major factor in printing cost). In that scenario, I may end up duplicating the original RGB artwork several times before getting the selection that I want - then ultimately filling or erasing that selection on the spot channel(s). The process can be very non-intuitive at times, and sometimes you just have to dive in and do some trial and error - esp. if the original RGB image is something flat that was not originally intended to be printed in such a way or is "damaged" (eg, not on layers, suffers from JPEG compression, etc.). Chris _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer