Does Blender compute all previous modifiers to a Geometry Nodes each time a value is changed in the GN?

-I mean, for example, if I have a big mesh and I want to reduce its vertices with a decimate modifier before the GN. Does Blender compute that modifier each time I change a value in the GN?

-And another question: If I add just two nodes, a merge by distance and then a set position. Each time I made a change in the set position does it also compute the merge by distance? Thanks


  • $\begingroup$ Merge by distance doesn't do the same as decimate. So if one performs and other doesn't, I think that kind of helps to determine which performs better. $\endgroup$ Apr 7, 2023 at 20:26
  • $\begingroup$ Thank you Marynas, I undestand so I updated the question. But the main point is if it computes all modifiers previous to a GN each time a value is changed in the GN. Thanks! $\endgroup$
    – Miguel
    Apr 8, 2023 at 12:11


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