Apple Shake 4 Tutorials - Manual (Page 144)

144 Tutorial 4 Working With Expressions
Note: To frame the curves, position the pointer in the Curve Editor and press the
Home key.
This trick makes everybody warm and happy. When you change the shape of the
animVal curve, you’ll see how it controls the shape of the random values. This creates a
flickering light with random values that are more “organic.”
If you are using the playback button, close the Curve Editor by switching to a different
tab—when displayed, the Curve Editor and the Color Picker slow down playback speed.
Simulating Volumetrics With RBlur
The following steps build the atmosphere with the Filter–RBlur function. RBlur stands
for Radial Blur.
To insert the RBlur node:
1 In Node View, select the Fade1 node.
2 Shift-click Filter–RBlur. This creates a new branch from the Fade1 node.