Well, JBC, lets see if I can help. 1. I think Brycetech has some interesting 'splosion methods, but the last time I was there, Bryce 4 was the latest version. 2. If you're talking about animation, then you just want it to be there in some frames and gone in others. If you're refering to a sigle scene, it can be most easily done in some brushing in postwork, but you could also try 2D image masking or if you're up to it, make a badass altitude texture that is partly transparent and partly metallic so it looks like a "De-cloaking" spacecraft. So, JabbaBabbaCabba, have fun Brycing and good luck with saving Enterprise! That is what you're trying to do, right?