How to make point cloud collide with other Object?

I download Point Cloud Free Viewer to load my point cloud data and it looks great.But,it is a pity that I foud it could not interact with others,such as collision.

Could anybody tell me the reason?
Thank you!!

Hi!

I think pointclouds will never collide with other object, because the points aren’t related to each other mathematically. It’s just a bunch of coordinates. You have to make a mesh or some model from them, so they can have a “solid” state to be collide with. Mesh models in obj file format are supported by Unity.