510 Applying Knockout Group to a dynamic path

- Hey gang, this is Deke McClelland.…Welcome to Deke's Techniques.…Now this week, we're in the Illustrator once again…with our friend the atom, and as you…may recall from last week, this is nothing more…than a single ellipse to which I have assigned…a bunch of fills and strokes and dynamic effects…from the appearance panel, but we have…something of a problem.…To get the effect of these hollow electrons,…I put a red fill in front of a while fill,…which works great when the atom's…set against a red background, but…if we switch out the background,…then the effect falls apart.…What we need is to make these atoms…truly transparent using an obscure…function that's found inside the transparency panel…known as knockout group.…

Now, I have to admit, I would have never figured this out…without the assistance of my dear friend Mordy Golding,…who by the way once worked on the…Illustrator team at Adobe, and he's…also the author of the Illustrator Insider…courses here at lynda.com, and I can't recommend him enough.…If you think that you know just about…