I am trying to achieve a non linear (gradually) screw procedurally, by this I mean the distance between each turn of the screw get smaller and smaller, this result should be obtain with modifier in a procedurally way, to get control over distance between the loop/size of the loop. Basically it would be similar as an antelope horn (as we get closer to the head, the distance between the horn "twisted ring" get smaller):

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Here is my setup: I started from a two vertices edgeenter image description here

Then I add this bunch of modifier: screw - solidify - subdivision - lattice.
This gave me a spring...

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...and by deforming the lattice I get this shape. And here is the big question : the distance between the "ring" decrease but only because the height of the ring decrease (this also cause the angle of each ring to change). How can I gradually decrease this distance without changing the height of the ring (I still want the radius of the first one to be bigger than the radius of the last one)?

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By applying the modifier and scale/move the top vertices with proportional editing I get something like that: But I am looking for a solution without applying that much modifier, to keep more control.

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this question can be extended to other modifier: how to use the array modifier in a non linear way ? By this I mean the distance between each instance is multiplied by 1.3 for exemple, meaning there is more and more distance between object as in this picture:enter image description here

  • $\begingroup$ Hello :). Since you already have a good result, are you asking how to achieve this procedurally? And in which parameters do you want to keep more control? $\endgroup$ – Jachym Michal Mar 6 at 13:31
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    $\begingroup$ @JachymMichal If procedurally means modifier based, yes that's it. I want to keep control of the distance between the loop and the size of the loop. And most of all, changing those parameter as if done with proportional editing. $\endgroup$ – pons de leon Mar 6 at 13:35
  • $\begingroup$ what about geometry nodes or animation nodes? i think both can do this $\endgroup$ – Chris Apr 27 at 14:49

with this node group you can control the distance of an array of objects:

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