Currently, I have a scene like this -
But I'd like the lights to look brighter and see the actual rays, instead the space between green ones darker.
It is possible to change the glow effect in the compositing tab with the glare node, but in any case, I need more absorption in the gap so that there is more contrast between the dark walls and the bright "connectors".
EDIT: I have been using Volume Scatter node, but it doesn't do exactly what I want.