Apple Color 1.5 User Manual
Page 275
3
Click in the Geometry preview area to add control points outlining the feature you want
to isolate, then click the first control point you created to close the shape and finish
adding points.
The shapes you draw in the Geometry room default to B-Spline shapes, which use control
points that are unattached to the shape they create to push and pull the shape into place
(similar to the B-Splines used by the curves controls in the Primary In and Out rooms).
You can also change these shapes to simple polygons if you need a shape with hard
angles rather than curves, by clicking the Polygon button in the Shapes tab. For more
information on working with shapes, see
.
Tip: If you’re not sure how many control points to add to create the shape you want,
don’t hesitate to create a few more than you think you’ll need. It’s easy to edit them after
they’re created, but you can’t add or remove control points to shapes that have already
been created.
4
If necessary, edit the shape to better fit the feature you’re trying to isolate by dragging
the control points to manipulate the shape.
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Chapter 10
The Secondaries Room