Re: [PD] gem alpha channel q

pix_gain 1 1 1 -1 should do this. although I think there is a bug in some gem versions. and maybe you have to use something like 1 1 0. -1 to get it to work. marius. 2009/10/14 rene beekman : > that inverts the entire image, not just the alpha channel... > > > On Oct 14, 2009, at 05:35, Jose L

Re: [PD] gem alpha channel q

that inverts the entire image, not just the alpha channel... On Oct 14, 2009, at 05:35, Jose Luis Santorcuato wrote: [pix_invert]...i think... Cheers Chile 2009/10/11 rene beekman how does one invert an alpha channel in gem ? i've created an alpha channel from the rgb channels, but need t

Re: [PD] gem alpha channel q

[pix_invert]...i think... Cheers Chile 2009/10/11 rene beekman > > how does one invert an alpha channel in gem ? > i've created an alpha channel from the rgb channels, but need the channel > to be inverted. somehow i can't seem to find a way to do this... > > hope it is just sleep deprivation a

Re: [PD] gem alpha channel q

Maybe you can convert alpha to a color, then invert the colors, then convert back to alpha. .hc On Oct 11, 2009, at 6:42 PM, rene beekman wrote: how does one invert an alpha channel in gem ? i've created an alpha channel from the rgb channels, but need the channel to be inverted. someho

[PD] gem alpha channel q

how does one invert an alpha channel in gem ? i've created an alpha channel from the rgb channels, but need the channel to be inverted. somehow i can't seem to find a way to do this... hope it is just sleep deprivation and i'm simply overlooking the obvious... :) thanks in advance, rene