yes, sprites in blendmode 3. You may use a method that first checks if the camera can see the lightbulb mesh (or pivot). If the lightbuld is visible (Entityvisible), you may show the sprite, if it's not then hide it. additionally you'll set the entityorder f the sprite in a way that it is drawn in front of everything else. Since the sprite is scaled bigger than the bulb you'll get the effect of blinding shiny light sources like here:
But it's a bit CPU costy when you have lots of lights in a scene. So adding a sprite to each light would to the job too. When the sprite is near a wall, it may look like the sprite was cut like this:
But it's a bit CPU costy when you have lots of lights in a scene. So adding a sprite to each light would to the job too. When the sprite is near a wall, it may look like the sprite was cut like this: