Thanks. :-)

Not bad. But in my scenario, it is a bit different: there is an
illuminated day" side inside that hollow cylinder, but also a dark
"night" side. The illumination is done already by light sources at the
moment, or an emissive image maybe in the future.

The medium I need, would not need to glow. But it should give that blue
"dust" to the distance, and be brighter around a light or emission source.

Post a reply to this message