Child nodes off RigidBody

Hi All

I 'm getting this error (using 2018.2.0f2):

"Non-convex MeshCollider with non-kinematic Rigidbody is no longer supported in Unity 5.
If you want to use a non-convex mesh either make the Rigidbody kinematic or remove the Rigidbody component."

What I'm doing is knocking over a tree model. It's laid out like this:

tree (empty)

  |__ trunk (rigid body, capsule collider)

        |__ Cone meshes for foliage

I set the rigid body to IsKinematic until such time as I want to apply a force to the tree (knock it over). That works absolutely the way I want it to, visually at least, but I get the error above. I'm not sure why it thinks I want a non-convex collider - does it assume that the code child nodes are part of the collider?
Is there an issue with me parenting the cone/foliage to the trunk with the rigid body? If this isn't the right way to do this, what is?

To recap: I'm happy for the physics to just be on the trunk - the foliage intersects the ground when it lands and then I fade it out. But I want the foliage parented to the trunk so it all falls together.

Any help would be appreciated!

Peter

 

Yes, of course. Any collider in the same GameObject of a Rigidbody or any of its children will be considered part of the Rigidbody's collider. All these colliders must be either primitive colliders (sphere, box, capsule) or convex mesh-collider.

The most probable solution is just ticking the "Convex" flag in the cone colliders.

 

Thanks for that. I don't want the cones included in the collider - but your post pointed me in the right direction. I hadn't noticed that the cones had colliders on them at all. Removing them gave me the result I was looking for. Thanks for your help!