I want to create a simulation of leaves blowing in the wind using blender v2.72, just like this tutorial (archive).

My problem is, I can't get the wind force field to act on the cloth simmed leaves once they are emitted by a particle emitter. nHere is a breakdown of what I tried to get the wind blowing.

I created a plane (at 0,0,0) as a particle emitter, adjusted the number of particles to 20, set the start and end frames to 1 and adjusted the lifetime to 2000. Under velocity, I set random to 0.2. I then set the physics to off ("No" in the settings) and switched off the rendering of particles.

I created another plane (also at 0,0,0) to act as the leaf mesh, subdivided it a few times in edit mode, applied a particle instance modifier to it, and selected the emitter plane as the object, I also checked "size" in the "create from" field to make the leaves smaller. After this, I applied cloth simulation to this "leaf" plane.

I then created a ground plane, scaled it up to 2, placed it below the emitter plane at (0,0,-0.2) and applied collision physics to it.

At this stage, hitting play results in the "leaves" realistically falling down onto the ground plane with cloth physics working.

The problem is I then can't get a wind force (in the physics tab) to act upon the leaves. I tried adding an empty and applying a wind force field to it, but no matter where this wind field is directed and no matter how strong I make it, the leaves don't react to it.


The size of the leaves is too small that is what causing the leaves to not respond to the wind force to solve this :

  • scale up all the objects involved in the simulation
  • move the emitter further from the ground to give the leafs space to fall
  • increase the size of the particles in the physics panel :

enter image description here

here is the result :

enter image description here

  • 1
    $\begingroup$ I appreciate the help, this definitely works and I would vote up your answer if I had the reputation to do it.Just to help anyone that was having the same problem, as Chebhou said, scale up the objects in the simulation. In this case, I scaled up the emitter plane and the ground plane ( I left the wind empty and the cloth simmed leaf at their original sizes). $\endgroup$
    – ShaunBach
    Feb 19 '15 at 19:21
  • $\begingroup$ If you could add as a blend file it would be most appreciated. $\endgroup$
    – batFINGER
    Sep 7 '16 at 12:24

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