How to make a sun in Blender? How do I make a nice sun in blender? I am not looking to change a lamp into the sun, I am looking for an actual sun that can be seen in my scene.

Back in High school I had a project on making a sun but I forgot how its done. Blender has had a dramatic change since then anyway so any help on making a sun in blender would be nice thank you.

Also, if there is different processes to doing this in blender render vs blender cycles please I would appreciate both ways explained.
I would do this in Cycles using volumetric lighting.



Here's the basic setup: just one light on a landscape.



Then add a cube around the scene with some volume scatter and volume absorption as materials.





for the background you can use a color ramp like this: