
I wasn't satisfied by the light beam in lighthouse. Why ? because it doesn't have smooth edges and it's obvious that is just a cone textured. Lighthouse is supposed to be a next gen track. And next gen track will have volumetric light beam. So I coded a shader to do that.

You can turn around the beam and the edges are smooth.
I'm still tweaking parameters. When it will be finished I'm going to update the exporter to support its.
Todo:
Add support for fog
Update the exporter
Change the color of the lightray