Pyrotechnic Display

Today, for the first time I did some fireworks graphics, and it turned out fine. Of course the ones I did were animated, I did some 15 different types of fireworks. Just that I don't know how to save them in matte key. If I could than it would have been easier for my editor to insert it on the opening sequence. But putting the luma key effect in AVID is good enough..Thats what I thought. You just gotta decrease the gain by a bit, and increase the softness until you get the desired effect. And than layer it with a coulour effect and increase the brightness..seems to do the trick. I don't know..I will ask my editor to try it out tomorro.