A G’MIC implementation; lighting/shading model borrowed from Fingerpaint. Need to give some thought to keeping tile aspect ratio more-or-less constant. Annotated code to go to Tutorial Fragments, but not tonight (Sunday evening, N. American East Coast). Time to walk the puppy.
On the way…Thanks Garry.
Took awhile; mea culpa but a busy week ensued. Check back at T. Fragments…
Bonjour,
The new ‘gtutor_tileit’ filter performs very well in the current version of G’MIC-Gimp.
Here is a test performed in G’MIC-Gimp using this code :
fx_gmicky 0
blur 1
to_gray
autoindex 2
n 0,255
gtutor_tileit 10,10,2,0,0,60,0,40
rm[-2]
:o)
Thanks Sylvie.
Thank you for the reminder, Sylvie. I frequently overlook Various →Custom Code backdoor in the QT plugin.
Always fun to see how other people approach a visualization, such as tiling and how your samj_Mosaic_A plays its game. It is a curious pleasure, considering that we both started from bits of ceramics plastered to walls, seeing the two approaches. You don’t think like me - and that, I think, is a very good thing. Such is the way to a colorful world.
gtutor_tileit has taken another turn - the last until I do the tutorial on it. Have fun.
Really cool result, Sylvie. 
Very important step forward, Gary.
Waiting for a G’mic filter on the (Gimp/)G’mic repository.
So that I can start playing with it.
Thanks a lot Gary.
Would you Sylvie try to create a “Testing” filter utilizing the last Gary’s development of tileit which seems to work on the colours of the source image?
It would be nice…
(you did an interesting “Various” user flow with the previous version, which worked on a B/W source and created a green/blue outcome)
Progress on the tutorial front: nearly done. May post the before Sol’s penumbra passes over the North American East Coast, 1 AM-ish, UTC — but I don’t think I will write any QT-G’MIC plugin adapter before next weekend. gtutor_tileit may sprout a few additional features when I wrap it, further variations in tile scattering for all the dystopian artists out there. That is, additional options, no change in current parameters. Anyone who wants to have fun with the current gtutor_tileit, be my guest!
Great Garry.
You likely remember when -in Nearderthaler era- I was able to write some piece of code in G’mic. Now I can’t do it any more, not even to experimenting your gtutor_tileit, and that’s why I will wait to have the plug-in.
Thanks a lot.
Filter committed @dinasset. Should be available with a gmic-qt update in a little while. Have fun.
Testing → Gmic Tutorials → Rectangular Tiling :
Generate a mosaic from an image. Works best with line art cartoons with flat color.
Tile Size = float(1.0,0.05,5.0)
Disrupt Orientation = float(5.0,0.0,10.0)
Spread Tiles Apart = float(1.5,0.25,5.0)
Fill Holes = bool(1)
Color Count = int(4,2,32)
Flat Color = bool(0)
Light Angle = float(45.0,-180,180)
Soften Lighting = float(0.5,0.0,5.0)
Great Garry.
Sure I will play a lot with it.
Created and posted on Gimpchat my first simple filter using your style, Garry.