I created an object composed of 6 different forms and I want it to simulate grasses and my plane that contains "mountains" and a generally altered surface (so its not a plane any more ^^).

When coming to add particles, my object does not fit the ground. If I use rotation and altered my Y axis object, I don’t have a pretty natural result, and nothing is sitting on my floor...

enter image description here

  • $\begingroup$ Welcome to the site! Could you show where the object's origins are? $\endgroup$ – Carlo Dec 12 '15 at 15:32
  • $\begingroup$ Are there any modifiers on the plane? Try checking Use Modifier Stack. $\endgroup$ – PGmath Dec 12 '15 at 17:18
  • $\begingroup$ I Carlo ! and thanks. I set the origin in the center of the geometry you see on the right panel in my image above. $\endgroup$ – Aurélien Clochet Dec 12 '15 at 17:50
  • $\begingroup$ And i have no modifier on the plane except the one for the particles $\endgroup$ – Aurélien Clochet Dec 12 '15 at 17:51

Set Random velocity to 0

As state by the Blender manual's page about the option:

Gives the starting speed a random variation

Each object, having a different emission speed, is found at a different distance from the surface at the current frame (even if it is the staring one).

enter image description here

  • $\begingroup$ Hi ! Well thanks for the tips, it really helps. You made my day :) Thanks again ! $\endgroup$ – Aurélien Clochet Dec 12 '15 at 21:09

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