Convert terrain into particles

So Im wondering how to take a terrain .obj file and convert the vertices that make up the terrain as dynamic particles that would float in space like this:
https://vimeo.com/175727117

bump please help…

Both Shuriken and Legacy particle systems can use mesh objects as source, thats for “convert the vertices” part. But the interactivity like shown in your video will require some serious custom scripting. I’m not even sure everything can be reproduced in Unity.