Reply To: blender volumetric lighting
He Jesse, you can also do this right in Cycles, though it will take a little while to render.
The problem you ran into is that your camera was inside the volume box – it has to be outside in order to see the effect. So I deleted the box and added a volume to the world instead. I also cranked up the value of the emission quite a bit, and switched color management over to filmic:
