9.5.2

1128 • CHAPTER 22
XPRESSO EDITOR • 1129
Iteration
In the Attribute manager, set the Matrix Mode for the top two Point nodes above to Local.
You cannot make XGroups repeat using Iteration nodes.
You can form nested loops by connecting several Iteration nodes together via
their Previous Iterator ports.
This node allows you to simulate program loops. A numeric value is increased by steps of 1 until a
maximum value is reached. The value is then reduced to its minimum value and the loop begins once
more. A complete loop is performed per animation frame.
The Iteration node is especially useful when editing a large number of points via a Point node. For
example, you can connect the Iteration node’s output to the Point node’s Index port to edit multiple
points in one step.
The Iteration Start and Iteration End input ports dene the start value and the maximum value for the
loop. The Iteration port outputs the numbers in the loop one after the other.
The On input port takes a Bool value that enables (True) or disables (False) the node. The node is
enabled automatically if you do not add this port.
The Count port outputs the total number of iterations in the loop.
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