With modern PC's having quite large amounts of RAM, as they do, I pretty much always try and trade in memory usage for speed.
BTW, can't you just have regular light decal sprites and then show/hide them to make them blink? Or are you going for a fade on/off effect?
BTW, can't you just have regular light decal sprites and then show/hide them to make them blink? Or are you going for a fade on/off effect?