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This spreadsheet corresponds to a point cloud I have generated in Blender 3.6 geometry nodes.

What I want to do is average together the positions of points with the same ID. Do you know how it could be done?

The attribute statistics node doesn't work for what I want, because it outputs a single value, and I want a field of averages with as many values as there are IDs.


1 Answer 1


Use Accumulate Field node, which allows you to group elements. One to sum up all values, one to count the number of values in a group, and then you can calculate the average. For example below I'm reproducing Scale Elements node's functionality by calculating the average position for each mesh island (I only set ID to make it clear it can work with ID):

  • $\begingroup$ OK thank you, that seems to work for what I want, as far as I can see... $\endgroup$
    – user46965
    Commented Aug 16, 2023 at 18:50

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