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Based on @Robin Betts's sample - how to bend geometry with geometry nodes

If the curves have multiple splines, How to Copy and Deform on each spline?

or other implementation methods(Not Instance on Points)

Thanks.

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Update:

Thanks to @Robin Betts and @Kuboå, I figured out what I need.

Here is the solution:

Apply a copy of an object to each disconnected curve using the curve modifier

Zhimou Yuan
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  • You want a separate copy of your deformed mesh on each spline? – Robin Betts Jan 26 '23 at 17:52
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    Yes, copy and deformed on each spline, therefore the input array(deformed mesh) is as long as the longest spline. – Zhimou Yuan Jan 26 '23 at 18:13
  • How do you want the surplus geometry, (too long) on the shorter splines to behave? scaled. lower count. deleted mesh.. etc etc. Oh, and what Blender version? – Robin Betts Jan 26 '23 at 19:39
  • The problem is just like the curve modifier does not support Curves with multiple splines. The Curve Index in Sample Curve Node doesn't help (All Curves Off). I think if that sampling on each spline separately, by your way, we just need an x-array as long as the longest spline. the work is done. Array and Deforming on each spline in a curve. – Zhimou Yuan Jan 27 '23 at 02:49
  • @HarryMcKenzie Ahh! .. and Kuboå 's deform method, trimming the curves, is so much snappier than mine, anyway .. FusioN .. I would definitely recommend it. If it does turn out to be a fix for you, could you confirm in a comment, here, please? We can close this Q. as a duplicate. I'll link from my deform method to Kuboå 's. – Robin Betts Jan 27 '23 at 09:02
  • OK, But I'm still struggling with what I am doing, and need to learn how to use StackExchange. – Zhimou Yuan Jan 29 '23 at 22:09
  • No problem.. has kuboa's method worked for you? Wouldn't want to combine the questions, unless you had a fix. – Robin Betts Jan 30 '23 at 08:23
  • AFK now, for lazy people like me, what you care about above, I just delete the useless. The Array Instance on each spline is the longest(length of the longest spline).when this array deforms on a shorter spline(sample curve by length via position-x), the end of items will collapse, merge by distance, then delete Geometry by Comparing their sum of points or face areas with the original. – Zhimou Yuan Jan 31 '23 at 03:25

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