Graphics Programs Reference
In-Depth Information
Step Six:
Next, turn on the Smart Radius checkbox (you won't see anything happen yet, but turn it
on anyway). Smart Radius is the edge technology that knows the difference between a soft
edge and a hard edge, soit can make a mask that includes both. This checkbox is soimport-
ant that I leave it on all the time (if you want it always on, as well, just turn it on and then
turn on the Remember Settings checkbox at the bottom of the dialog). Now, again, just for
learning purposes, drag the Radius slider all the way over the right (to 250), and all of her
hair gets selected instantly (pretty amazing isn't it?). While it did a great job on her hair,
there are parts of her (like her hand on her hip) that are being “over-selected.” Those areas
will wind up being transparent, and you don't want that, so we always have to back it way
down. But, I just wanted you to see the incredible math at work.
