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How can I make this effect in blender using geometry nodes? The two sphere is generated using Point Distribute and Point Instance. I know it has something to do with Attribute Proximity but I don't know how to deal with it. Proximity Effect Example

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    $\begingroup$ do you want explicitly a geometry nodes solution? because it is very easy with metaballs... $\endgroup$
    – Chris
    Jan 26 at 6:56

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yes, it is a solution without proximity...(shame on me), but i think it isn't possible with the current version of the proximity node (i explain it later)

ok, there is a "way" and it's a bit buggy, but you can instance a metaball in GN with a hack:

Add a metaball, parent it to a plane.

enter image description here

On the plane: check instance on vertices.

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add GN modifier to plane with this node setup:

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and you will see: nothing...

but...now click a few times in "as instance"

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and you will see:

enter image description here

enter image description here

NOTE: I am pretty sure this isn't possible in GN with proximity node (except you just want to do it with 2 metaballs) because the proximity node looks like this:

enter image description here

And so it takes only one object/geometry where you get the proximity from. You don't get the proximity between all instances (or every near vertex) and so i think this isn't possible with the proximity node.

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  • $\begingroup$ Thanks! That was what all I needed! $\endgroup$ Jan 26 at 10:00
  • $\begingroup$ You are welcome! $\endgroup$
    – Chris
    Jan 26 at 10:00
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This is not the answer to achieve exactly the result you've shown, it's just to show what other possibilities there are with Geometry Nodes.

For example, you can turn points into volumes and volumes back to meshes. In the following gif I just used two spheres, but of course you can use any other shape as well. This is done completely in Geometry Nodes, maybe one could go on by adding a Remesh modifier afterwards or something like that.

volume meshing

And this is my node setup:

node tree

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    $\begingroup$ Nice! Thank you for sharing your knowledge! $\endgroup$ Jan 26 at 14:05

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