0
$\begingroup$

I'm having difficulty correctly applying object instances to a curved mesh object. You can see here from my image below that the instances are not curving with the curved mesh. I'd love some direction on how to do apply a flat object instance to a curved mesh and have it curved along the curved mesh face using geometry nodes. I have searched high and low on the interwebs and cannot seem to find an answer.

enter image description here

geometry nodes setup: https://i.sstatic.net/eVF26.png

more example images: https://i.sstatic.net/tjWbB.jpg

Thanks!

Improve this question
$\endgroup$
0

1 Answer 1

Reset to default
3
$\begingroup$

here's a setup that could work for you... the plane you want to instantiate needs to have some resolution, just 4 vertices will not bend / adapt to mesh... and then you need to realize these instances to be able to move each vertex... a raycast node will search for best point on the surface to snap your vertices to

I used an icosphere to instantiate the planes -just a few- but then subdivided it to have a better surface for snapping... may need to flip the normals on the plane or the ray direction in raycast node... also remember that the grid or the sphere could even be GN primitives

node setup

Improve this answer
$\endgroup$
5
  • $\begingroup$ That's fabulous! $\endgroup$
    – NatureK
    Commented Mar 15, 2022 at 6:11
  • $\begingroup$ thanks @NatureK you had a nice setup too, I saw later it was your answer linked here $\endgroup$
    – alambre
    Commented Mar 15, 2022 at 12:54
  • $\begingroup$ No,I don't get the right answer,I just align the normal,but don't achieve the shrink. $\endgroup$
    – NatureK
    Commented Mar 15, 2022 at 13:00
  • $\begingroup$ Thanks! Is there a way to preserve the object that has the geometry node modifier? this seems to either remove its mesh or replace it with the object instances. $\endgroup$
    – rtwhite
    Commented Mar 15, 2022 at 23:19
  • $\begingroup$ sure, use a 'join geometry' node next to the end and connect your 'group input' geometry... or place GN modifier on some other mesh and use 'info node' to input the sphere $\endgroup$
    – alambre
    Commented Mar 15, 2022 at 23:48

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .