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I want to use preset vertex weights to control the strength of gravity in the particle system, but I found that the gravity option only supports textures.

So is there a way to convert the vertex weights I set into textures or something. My vertex weight is a animated weight, generated by the Vertex Weight Proximity Modifier, and the result will be that the upper position is always affected by less gravity (the circle is constantly rotating).

enter image description here

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  • $\begingroup$ Would geometry nodes solution ok for u? $\endgroup$
    – Chris
    May 16 at 14:39
  • $\begingroup$ Yes. Please!! Thanks~ $\endgroup$
    – Ben
    May 16 at 14:58
  • $\begingroup$ can you link a video how the end effect should look like please? because i am still not sure how it should look like... $\endgroup$
    – Chris
    May 16 at 15:01
  • $\begingroup$ meanwhile you could read this: blender.stackexchange.com/questions/15167/… ...this might help you $\endgroup$
    – Chris
    May 16 at 15:04
  • $\begingroup$ I'm sorry for my expressiveness. The torus I posted works as a particle emitter, and I want the emitted particles to be given the corresponding gravitational strength using vertex weights in picture.(The way the ring rotates is like a ferris wheel thing) $\endgroup$
    – Ben
    May 16 at 15:35

1 Answer 1

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ok, here a solution with particles:

I have a torus with a force like this:

enter image description here

so the force will be driven by the surface.

I added a vertex group to the torus with all vertices.

And i added the vertexweightproximity to the torus with the sphere as "reactor", which i animate in a circle along the torus, and with a mask modifier i delete parts of the torus and the force modifier at last.

Result looks like this:

enter image description here

Note: i turned gravity completely off for this so the particles are only influenced by the force.

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