There are always complex ways to do things, but I tend to favor simple, effective techniques. What if you are doing a dusk or night rendering in Photoshop, and you want to add some lights, shining in the darkness? Select a simple feathered brush, sample the color of the light, and make one quick dab at the location of the light bulb. That is it!

In this architectural illustration, I added a string of festive lighting by tapping the brush at even intervals at the eave line. The color is a very pale yellow, which gives the appearance of clear bulbs, but it could just as easily have been brightly colored lights. The same technique will work on a more complex light fixture such as a carriage light. Paint the carriage light, then tap in the glowing bulb. Place the glow on it’s own layer in case you want to turn the light on and off!