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Feb 27 at 23:15 comment added Metal3d As I'm working with a points cloud, I need to iterate over the points IDs, so at this time, a repeat zone is (I guess) mandatory. I'm currently testing Accumulate Field node to understand what is the usage.
Feb 27 at 18:28 comment added StefLAncien The second solution based on a Cartesian grid is most likely redundant with Markus von Broady's proposal from a mathematical point of view. But as the grid could be permanent outside the simulation zone, the creation/deletion time of the point cloud could be saved. Unless Blender is caching in memory every iteration...
Feb 27 at 18:19 history edited StefLAncien CC BY-SA 4.0
Add another GN graph.
Feb 27 at 13:36 history edited StefLAncien CC BY-SA 4.0
Add links to documentation.
Feb 27 at 13:25 comment added Metal3d I don't know how this node works ;), I will check the documentation. Just one note: you don't need to sample index for the current point, the "position" attribute is the current one. At least, on my setup, it works. Thanks again for your advices, I'll check the attribute statistic.
Feb 27 at 13:20 comment added StefLAncien The Attribute Statistic node should be optimized compared to a Repeat Zone. An Accumulate Field could also be tested as it is dedicated to summation; but it is producing extra data not required in this case.
Feb 27 at 13:14 vote accept Metal3d
Feb 27 at 13:14 comment added Metal3d Damned, I just found approximately the same solution using a repeat zone inside the simulation getting the domain count and sampling index. Thanks a lot for your answer, I'll take a look on your method to see if it's not more optimal.
Feb 27 at 13:02 history answered StefLAncien CC BY-SA 4.0