Multiple Pontoon on Buoyancy not working

Development Rendering
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6

Hey et al,

I had the same issue. Here are some things I noticed in UE 4.26.2 after an hour or two of playing with the Buoyancy Component.

  1. A Physical Object has to be the root of your BP for buoyancy to work. (ie Static Mesh, Box Collision, Cube, etc)
    [A Scene Component as the root object will not work]
  2. If Box Collision or Cube is root, up to two pontoons are supported. When I add the third, it sinks immediately
  3. If Static Mesh is root, > two pontoons are supported. I don’t know how many, but I have 4 working just fine on a raft I made.

So, in essence, make sure you setup Static Mesh as your root. Correctly add your colliders on your static mesh (and not using Box Collision in BPs like I was trying to do). Enjoy your floating buoyant objects! :slight_smile:

And yes, objects starting above water seems to be essential too, but i didn’t play too much with that.