https://github.com/LinuxBeaver/GEGL-Electricity/

This is an advance GEGL filter that request you use Gimp blend modes on a layer above as opposed to GEGL blend modes in virtual layers.

Default filter (being applied to Glossy Balloon viewtopic.php?f=9&t=19944&start=0&hilit=balloon )




Further Modded images




Steps
1. Make a duplicate of your layer that you want to apply gegl:electricity too
2. Apply gegl:electricity to the layer above.
3. swap between blend modes in Gimp (NOT GEGL) and you can do this while the filter is open. I like grain merge, addition and linear light)

This is the graph. It requires none of my custom operations and this filter is only one binary.

A gaussian blur under the eletricity and a Bloom on the subject/object complements it.

This effect would be even cooler if you could cast a glow onto the object as well. I am checking a possibility, using an extra layer.

Is there a way I can get the effect to work on larger 'selections'? When I try it just does the top left corner?
Is there something I'm doing wrong?

Select "Layer to Image Size" for your canvas then apply Electricity again. The yellow dots selection is present in your image.