hi,everybody.

how to make particles move along a curve when they are chasing an object?
I use attractor pop or follow pop try it ,but the result is not good

You don't necessarily need the Followers attracted to a curve.
There are two key pop nodes that will help a great deal. The first and most important is the Drag pop which will provide a greater degree of control over the particles. The other that you should use is the Interact pop, so that the Followers don't bunch together too much.

I've attached an example, it is set to just follow the leader, but I've also added a curve and an Attractor and Interact pop (these are bypassed). You'll be able to see the difference in how the followers behave.

If you wish to use the curve to guide the followers, then take not of the Resample and Point sops. You resample the curve to get a better distribution of points along the curve and the Point sop adds point forces to the curve.

probbins
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If you wish to use the curve to guide the followers, then take not of the Resample and Point sops. You resample the curve to get a better distribution of points along the curve and the Point sop adds point forces to the curve.

Thank you very much.

In point Sop ,there is three force types:radial,Normal and edge
which type force will I use ?And how to apply the force to particles?

This is the effect i want to get.

here's a sort of different, more complicated but also a tad bit more flexible approach - it's based on creating tangents on the motion path and transferring these tangent vectors onto particles as a force.

cheers,
Abdelkareem

many thanks