David Hill effect

[Krikor]

Rich2005,

Fantastic!
Although now it is not as fast as when it did not work. 

I found the result very strong, but I used only the default values, and I believe that with adjustments I can get better results. 

"If you ever come across another script like this, then might be (but not always) fixable without a major re-write. A parameter ADDITION-MODE becomes LAYER-MODE-ADDITION, and OVERLAY-MODE becomes LAYER-MODE-OVERLAY ... For a list of modes open up the script-fu console, select a function that handles modes and see the options. https://i.imgur.com/A1Oxwg3.jpg" - Rich2005

in fact, I have come across these error messages many times before. Unfortunately most of the time I just uninstalled the script.
Now with this super-mega-ultra tip, I can have some autonomy in these situations.
Thank you very much Rich2005!