OK, you made me think about a possible filter to ease the illumination of shapes.
I’m not sure this is way to investigate further, so maybe you can tell me ?
At this point, this is what I’m able to do, from a binary shape (left) to an automatically illuminated version (right):
We could think about adding lot of options of course to set up the light color, direction, and so on…
This is for the moment just a proof of concept.
Do you think it can be interesting ?