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I'm new in blender, and I am stuck in the progress of my project. I want to emit particles from an object (done). Then i need these particles move on the surface of this object randomly (turbulences).

I have duplicated my emitter object, and i scaled up a little (ALT+S). I put it in collider. So now, my particles are stuck between these two objects, but the simulation time is big.

I just want to know if there are a better solution to lock moving particles on surface.

Thanks! Best, Vincent.

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    $\begingroup$ Please show your current work in a screen capture. $\endgroup$ – atomicbezierslinger Mar 23 '18 at 16:13
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    $\begingroup$ Your wrote [particles move on the surface of this object randomly (turbulences)] . [Randomly], in casual English, can mean many things ... 01. Small jitters, 02. Large Sweeping motions, 03. More 04. combinations of more unmentioned. Please explain what (you) mean by Random. $\endgroup$ – atomicbezierslinger Mar 23 '18 at 16:18
  • $\begingroup$ Please show and explain your surface. You might be implying a closed surface ... or not. $\endgroup$ – atomicbezierslinger Mar 23 '18 at 16:20
  • $\begingroup$ Please use the edit link at the bottom of your question (i.stack.imgur.com/lXFuK.png) and add more information. We can't guess know how you set up your particles. Add images that might help us understand your scene $\endgroup$ – cegaton Mar 23 '18 at 19:52
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enter image description here

Please see this link

How to isolate emitted particles to a specific Curve Guide?

And think about how you can customize the situation to meet your needs if possible.

An example might be one or more sweeping curves (nooodle soup teriyaki flavor) on the surface of your objects as a path for your particles.

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