Creating Glowing Lights
If you want to make an object that looks like it is glowing, or go further, and actually make something that acts as a light source itself in the scene, there are a number of approaches that can be taken, depending on the kind of effect you wish to achieve and the level of simulation you can get away with. This tutorial covers a wide range of strategies from fast, to fake, to full lighting simulation. As is often the case, to achieve the greatest level of realism will require either effort on your part in setting up the scene skilfully or effort on the part of the processor in intensive light simulation. Or possibly a combination of both.