Apple Shake 4 User Manual
Page 693
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Chapter 24
Keying
693
The next image illustrates a disabled preMultiply parameter in the Over node (because
the mask/RGB premultiplied relationship is upset). White lines appear around the edges.
This introduces another problem: The electrical power lines have disappeared from the
lower-right corner of the image. Because the details are so fine, the DilateErode node
has chewed the lines away.
The easiest way of correcting this in this example is to use a manually painted mask,
which limits the effect of the DilateErode node.
To restore fine detail to the composite:
1
Attach a QuickPaint node to the Mask input of the DilateErode node.
A mask is attached to the DilateErode.
2
Paint across the electrical wires.
But this only dilates areas where the wires exist—the opposite of what you want.
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