2017

Table Of Contents
The following example illustrates a magnet that has a strong negative polarity near the centre and a strong
positive polarity near the edges.
Magnetic Curve Editor
The following example illustrates a magnet whose positive polarity decreases from the centre and whose
negative polarity increases toward the edges.
When you transform points, the direction and size of the transformation is determined by the weighted
polarity of the magnet at the location of the points.
Using the first example, if you use the magnet to translate the points on the X-axis by +200, the points in
the centre of the magnet move in the positive direction on the X-axisthey are attracted to the magnetwhile
the points near the edge of the magnet move in the negative direction on the X axisthey are repelled by
the magnet.
To change the polarity of the magnet:
1 In the Vertices or UV Points menu, click Reset to return the magnet curve to its default.
2 Click the left-most handle on the curve and drag to define the polarity for the centre of the magnet.
To:Drag the point:
Increase the positive polarity.Up
518 | Chapter 15 Compositing in 3D Space with Action