Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!usc!wuarchive!udel!rochester!pt.cs.cmu.edu!o.gp.cs.cmu.edu!andrew.cmu.edu!wb1j+ From: wb1j+@andrew.cmu.edu (William M. Bumgarner) Newsgroups: comp.sys.next Subject: Re: Compositing question Message-ID: Date: 9 Mar 91 01:47:06 GMT References: <1991Mar9.000952.903@data.com> Distribution: na Organization: Carnegie Mellon, Pittsburgh, PA Lines: 14 In-Reply-To: <1991Mar9.000952.903@data.com> If you dissolve by 50% each time, it will never reach zero, as you said. To actually dissolve completely, I suspect you need to have an ever increasing delta value as you do w/dissolve:toPoint:. Check out the documentation on dissolve:toPoint, it has more information about the dissolve numbers needded to achieve a complete dissolve. b.bum b.bumgarner | Disclaimer: All opinions expressed are my own. wb1j+@andrew.cmu.edu | I officially don't represent anyone unless I NeXT Campus Consultant | explicity say I am doing so. So there. "I ride tandem with the random/Things don't run the way I planned them.."