Dispersion

Jappaloe63 · **Posted:** Wed Jul 03, 2024 1:39 am **(#1)**

Does anyone know if there is a dispersion effect in G'mic... or Gegl?

sallyanne · **Posted:** Wed Jul 03, 2024 8:43 am **(#2)**

There is a solidify filter in (Repair) GMIC. which diperses colours of an image into a transparent background.
As for dispersing the same image I can only think of the array filters (in Arrays and tiles) GMIC.
There is also (map projection) GMIC again - Not tried this one yet but it may do what you want.

Jappaloe63 · **Posted:** Wed Jul 03, 2024 12:03 pm **(#3)**

Thank you . have anyway. but used a brush. So far the result is satisfactory

PixLab · **Posted:** Wed Jul 03, 2024 10:56 pm **(#4)**

Layer or brush (not both) in Dissolve mode, it is the opacity slider which will control the more or less particle/dispersion effect > 100% opacity = 0 particle/not dissolved.

With a black brush with reduced opacity (or it will just work like a normal brush)

Attachment:

screenshot_20240704-115103.jpg [ 311.37 KiB | Viewed 241 times ]

Or with the layer mode dissolved over a white layer

Attachment:

screenshot_20240704-115505.jpg [ 478.71 KiB | Viewed 241 times ]

Good to know: The remaining particle are 100% opaque even if opacity is at 20%, as in this very case (the dissolve mode) the opacity slider will not affect the transparency in the usual way but in a dissolved way.

Attachment:

screenshot_20240704-120523.jpg [ 314.75 KiB | Viewed 240 times ]

Jappaloe63 · **Posted:** Thu Jul 04, 2024 3:40 am **(#5)**

PixLab, thanks, I'll definitely try it
I have an old cubism. py file to get this result. Not completely satisfied yet.
The 2nd photo is with GEGL. cubism

sallyanne · **Posted:** Fri Jul 05, 2024 3:32 am **(#6)**

Maybe look under arrays and tiles in GMIC. Grid (cartesian) or Ministek. Seamless diffusion...maybe you can get it to do what you want, I cant.

Wallace · **Posted:** Fri Jul 05, 2024 2:09 pm **(#7)**

I'm using an old version of G'mic, but
there is a filter under Artistic called Cubism.

Not sure if this is the kind of "dispersion" you are looking for.

Attachment:

_bruce_lee___imported_-Screenshot__1919__png.png [ 267.33 KiB | Viewed 127 times ]

This is the result of the filter using the default setting.

Attachment:

_bruce_lee___imported_-Visible__2.png [ 570.71 KiB | Viewed 127 times ]

Jappaloe63 · **Posted:** Sat Jul 06, 2024 5:05 am **(#8)**

Now a little more time.
I did this in G'mic > deformations > breaks. Set type to relief.

quietreader · **Joined:** Apr 11, 2024 **Posts:** 23

Very cool.

PixLab · **Posted:** Sat Jul 06, 2024 10:01 am **(#10)**

Very nice effect with G'MIC Jappaloe63 :clap

Just quick play

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oldmangrumpy · **Posted:** Sat Jul 06, 2024 4:26 pm **(#11)**

I will just repeat what PixLab says "Very nice effect with G'MIC Jappaloe63 ":clap :coolthup

My quick play.