GMIC in Krita
lukast.dev at gmail.com
Sat Sep 21 09:53:10 UTC 2013
Testers are welcomed!
I blacklisted all filters that crashed on my machine (it is semi-automatic
so now we have 74% of filters confirmed as working. 26% of filters are
Crashes are there most likely due to:
a) bad parsing of gmic file format
b) missing features (multiple input / multiple output / unexpected output
2013/9/15 Paul Geraskin <paulgeraskin at gmail.com>
> Super! Just let me know if you need a tester :-)
> 15.09.2013 0:58 пользователь "Lukast dev" <lukast.dev at gmail.com> написал:
> > Hi,
> > I just wanted to let you know that Gmic plug-in for Krita was merged to
> > It is very experimental currently and it eats kittens (crashes can be
> > Here are banch of working filters
> > http://i.imgur.com/WvDHxhz.jpg
> > Curent status of gmic filters in Krita:
> > - total filters: 260
> > - known failings (blacklisted filters): 18
> > - known success: 80
> > The testing of filters is automatic but takes time, so I will blacklist
> all crashing filters.
> > Multi-layer input filters are not working yet. That is my next priority
> to fix (so that recolorize works etc.)
> > Cheers
> > Lukas
> > 2013/4/21 Lukast dev <lukast.dev at gmail.com>
> >> Hi Jay,
> >> > - Re-Use of Parameter Information
> >> > You can see there are lines within gmic_def.NNNN that define "Poster
> >> > filter and also specifies the types and ranges of the input
> variables. The
> >> > gmic_gimp plugin uses those definitions to present a user interface.
> >> > Perhaps "#@gimp" lines should change to "#@interface" or something
> >> > Krita friendly.
> >> Krita friendly? It's ok to let it be :)
> >> > - Version Control of Core "DEF" file
> >> > If you did split-out just those parts of the gmic_def then you may
> need to
> >> > maintain your fork
> >> I don't want to fork at all.
> >> I'd like to be able to link dynamically against gmic,
> >> so that Linux distributions provide always up-to-date
> >> gmic.
> >> > - Rewriting 8-bit scripts : TO DO
> >> > Since 2.9/2.10 are moving to higher bit depth and deprecating the
> >> > plugin interface, it seems likely a GMIC Script GEGL node will be
> made that
> >> > always requests a 32bit-float RGBA format, in which case many GMIC
> >> > that assume a 0-255 8bit value from the current plug-in will need to
> >> > amended to cope.
> >> It's little bit confusing with 255.0 values of pixels and this options
> >> and 8-bit encoding.
> >> GMIC is using Float32 bit internally but expect that the picture is in
> >> 0.0 - 255.0 to work nicely with parameters of filters.
> >> Krita is representing pixel in Float32 in range 0.0-1.0.
> >> So for now I normalize it on input and output.
> >> David showed me command in gmic that can do that, no problem.
> >> > - ColourSpace Assumption
> >> > As far as I understand values passed from GIMP are for an sRGB
> >> > but most of the plugins currently make no adjustment to linearise
> >> > processing - this is something better curation of filters could solve.
> >> Do we need linear rgb? What would be the real benefits for users?
> >> > There are also some "features" of the Alpha channel handling. Most
> >> > that ignore Alpha will delete the transparency rather than retain it.
> >> > Again, it's a matter of curation.
> >> Uh, good to know this! Thanks!
> >> > I'd be interested in a more database driven system to track versions
> >> > filters and maximise user interaction. There was something in KDE
> that Boud
> >> > mentioned at LGM as being worth looking at but I am a Windows user
> >> > and have not found it yet. A hosted repository with some kind of
> >> > search, tagging, user-feedback but also version control and regression
> >> > testing would seem desirable in addition to curation metadata about
> >> > colourspace and transparency etc..
> >> GetHotNewStuff http://ghns.freedesktop.org/
> >> Regards,
> >> Lukas
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