User Manual

Table Of Contents
Example 1
To make a numeric control equal to the Y value of a motion path, add an expression to
the desired target control and connect the Path to Point In 1. Enter the formula:
p1y
into the Number Out field.
Example 2
To make the result of the Expression’s Number Out be the largest of Number In 1 and
Number In 2, multiplied by the cosine of Number In 3, plus the X coordinate of Point In 1,
enter the formula:
max(n1, n2) * cos(n3) + p1x
into the Number Out field.
Example 3
Add a Background node set to solid black and a Hotspot node. Set the Hotspot size to
0.08 and set the Strength to maximum. Modify the Hotspot center with an expression.
Change the current frame to 0.
Set n1 to 0.0 and add a Bézier spline. At frame 29, set the value of n1 to 1.0. Select both
points and loop the spline using the Spline Editor. Now enter the following equations
into the Point Out tab of the expression.
X-Axis Expression
n1
Y-Axis Expression
0.5 + sin(time*50) 4
Render out a preview and look at the results. (Try this one with motion blur.)
From Image
The From Image modifier only works on gradients, like the gradient on a Background node. It
takes samples of an image along a user-definable line and creates a gradient from
those samples.
Unlike other modifiers, From Image is not located in the Modify With menu. This modifier can be
applied by right-clicking a Gradient bar in the Inspector and selecting From Image.
Inspector
Chapter – 111 Modifiers 2519