Hi,

I'm trying to make a glowing ball of light such as a car headlight or glowing sun.  However I can't seem to make the edges fade off of my globes.  They look like light bulbs (hard glass edge) not the diffuse fading out effect of a sun or headlight at night. I have tried using semi-trasperent png but doesn't work
Can someone pls help! This seems like it should be a basic thing but I can't find a tutorial or anything to help

I've made a primitive of a globe.  Now how do I make it bright in the center and fade off into transparency from the outer edge?