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ICE: Building an array from an fcurve
Suppose you have an animated scalar value, and you want to store its values as you play through a simulation. And suppose you also want to keep a running total of all the values up to the current...
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More fun with arrays
Here’s a recent array question from the mailing list: How do you build an array that looks like this? [0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, ...] ? I didn’t check the other answers yet, because that...
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Context matters: Get Set Size versus Get Array Size
PointNeighbors is a set of per-point arrays, so when you feed that into Get Array Size, you get a set of per-point integers (the number of neighbors for each point). Get Set Size, in contrast, will...
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Getting the neighbors of a specific point
There’s surely a better way, but this was a good little exercise in using ICE array nodes.
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Getting the neighbors of a specific point, part 2
As I wrote yesterday, there surely was a better way to get the neighbors of a specific point than messing around with a bunch of arrays. Here it is. Hat tip to Eric Thivierge
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Scripting: Getting the StrandPosition arrays
StrandPosition is an array of arrays: one array of positions for each strand. Here’s a Python snippet: from win32com.client import constants xsi = Application def dispFix( badDispatch ): import...
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ICE: Removing every Nth element from an array
The interesting part (to me) is generating the sequence of indices. It’s too bad I have to create a second array to do it, but I keep the size down to an Nth of the original.
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Using geometry queries to find and update points
Here’s a couple of examples of how to use a geometry query to modify certain points in a point cloud. The geometry queries return locations, and you can’t plug locations into Set Data nodes, so you...
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Sorting points with Sort Array with Value
Here’s a couple of examples to illustrate how to use Sort Array with Key. This ICE tree sorts points by their Y position. And this tree sorts points by their brightness.
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ICE: Summing up array elements by group
Given an array like [0, 3, 7, 22, 6, 71, 1, 0, 9] how do you sum up the first group of three elements (0+3+7), the second group of three elements (22+6+71), the third group (1+0+9), and so on and so...
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