Thanks to Miguel Pineau for his video (in French)!

Note: For having G'MIC Comic Book filter, you have to:

• have the version "2.9.8" of G'MIC
• have checked the "internet" case (on G'MIC-Qt window, at the bottom in the middle)
• have typed "Ctrl-R" (on G'MIC-Qt window)

Have fun!

Hello,

On some photos, I like when an bump effect is applied after the "Comic Book" effect.

Here is an example:

I've made it this way:

• Open image
• Apply "Comic book" filter (in G'Mic)
• In G'mic,
  
  • go to "Custom code [Local]",
    
  • paste
    
    Code: Select all

    fx_frame. 0,100,0,100,0,0,255,255,255,255,2,0,0,0,255
fx_custom_transform. "i","if(i<64,0, sqrt((i-64)/(256-64))*256  )","i","i","i","i",0
fx_illuminate_shape2d. 0,0,0,0,0,255,1,1,4,0,0,3,1,1,4,10,75,30,40,40,80,0.2,1,0,0,-2,-2,2,0,0,0
crop. 2,2,{w-4},{h-4}
  • click "OK".
    

Thanks! I didn't even know your Comic Book plug-in was added to G'mic, that's good.

That code is a cool effect, I can see many other uses of this effect as well, thank you

Happy to help!
I intended to add this additional effect and two other ones in the "Comic Book" filter.
I would add a drop-down list titled "Additional Effect" with 4 choices : "None", "Deep Black", "Groove", "Bump".

Here are examples:

Hello!

The G'Mic filter "Comic Book" now has new additional effects (Hit "Ctrl-R" on G'Mic window to get them).

• Color Effect: Deep Black, Colorful.
• Flat Color Effect: Rainbow, Hard Rainbow, Posterize Softly, Super Flat.
• Relief Effect: Groove, Bump.

The "Colors to Black or White" checkbox has become a dropdown list: Soft Threshold, Threshold with Soft Antialias, Lines and Black.
The old checked "Colors to Black or White" is equivalent to the new "Colors to Black or White = Soft Threshold" (as in this post of Jappaloe63).
"Lines and Black" is the same effect as in this post.

A "Final Antialias" checkbox is added.

Here are a few examples of "Color Effect" and "Flat Color Effect":


Have fun!

Thanks to Como Tempera for the video!

Note: After the video was made, the syntax of the filter has changed, the new command (default parameters) is now:

I can easily convert this to GEGL now as I have your original graph.



It will take a hour or two but I know I make this into a filter. I just need at least one person to request for me to go going.

When I make a thread about the filter I will put in the title "cli345's GEGL Cartoon effect (IN GEGL)"

So, does anyone have interest?

Good work! Many thanks!

Here is a little comic strip: (license: public domain)

Cute cartoon.

Thanks to "clueple c" for the video!

I couldn't help but have some experimental fun
https://www.gimpscripts.net/2023/05/comic-book.html

Cool!

I intend to propose an improvement of the Comicbook filter, I've added:
- two options "Light Mean Curvature" and "Simple Smooth" in the "Simplification" parameter,
- a parameter "Details" (set it to 41 to get the old result back),
- an option "Soft Rainbow" in the "Flat Color Effect" parameter.

Warning: This improvement will break the compatibility with the previous version.

Here are some examples with "Simple Smooth", "Details = 1", "Soft Rainbow", "Line Antialias = 100" and "Final Antialias = Double":
Here is the code:
Enjoy!

If this improvement is included in G'MIC, you'll have to refresh the filter page.

If you use the "cl_comic" function directly,

• You'll have to insert a new parameter after the 4th parameter: 41
  
  Attachment:
  
  screenshotParameter2.jpg [ 11.91 KiB | Viewed 532 times ]
  
• If the first parameter is 7, it will have to be changed into 8
• The "Flat Color Effect" parameter will have to (if not 0) be incremented by 1

In th e"Comicbook in G'MIC, If I select "Bump" I got an error, even clicking OK will not do the effect

Indeed, I've been able to reproduce the error.

I get the same error with the "Illuminate 2D shape" filter (which I use in the "Bump" effect).

Ohhh, indeed, I got the error as well