During the last days I had the opportunity to post some "plays" done with this sequence of steps, and I got positive feedbacks.
Thus I decided to release it as a filter to be used by everybody.
http://gimpscripts.com/2017/04/shining/It creates:
- one work new image where two intermediate results and the final outcome are present as layers
- one "montage" (2*2) of the original and the 3 effects created.
It has no prerequisites (the "luma invert" effect instead of being realized using the existing script has been "translated" and embedded).
Enjoy.