Or, even better yet, get the sin of the "else" convolution for effects with harder softer edges:

r>ctl(0)?cnv(ctl(0),ctl(0),ctl(0),ctl(0),ctl(0),ctl(0),ctl(0),ctl(0),ctl(0),ctl(6)) :sin(cnv(ctl(1),ctl(1),ctl(1),ctl(1),ctl(1),ctl(1),ctl(1),ctl(1),ctl(1),ctl(7)))

You should wind up with the ability to create something like the images below.

Using if/then/else expressions combined with
convolve (top) and the sine of convolve (bottom).

 

Well, we've covered quite a bit this time around. Again, play around with these expressions until the next time we discuss Filter Factory. Remember, you can combine just about any expression with just about any other one, as long as you state it properly. If you found this tutorial a bit confusing, you can always head back and read the introductory tutorial for using Filter Factory back in Part 1. (Part 1 also tells you how to build the filters after you work with the formulas.) Part 2 shows you how to customize the interfaces of the filters you create in Filter Factory.

Dave Nagel is the producer of Creative Mac and Digital Media Designer; host of the Creative Mac, Adobe InDesign, Adobe LiveMotion and Synthetik Studio Artist WWUGs; and executive producer of Creative Mac, Digital Media Designer, Digital Pro Sound, Digital Webcast, Plug-in Central, Presentation Master, ProAudio.net and Video Systems sites. All are part of the Digital Media Net family of online industry hubs.