public void createSphereCollider(HAPI_PartInfo part_info)
{
GameObject sphere_collider_obj =
new GameObject(part_info.name + "_sphere_collider_" + prGeoControl.prNodeId);
sphere_collider_obj.transform.SetParent(gameObject.transform);
sphere_collider_obj.isStatic = gameObject.isStatic;
// Need to reset position here because the assignment above will massage the child's
// position in order to be in the same place it was in the global namespace.
sphere_collider_obj.transform.localPosition = new Vector3();
sphere_collider_obj.transform.localRotation = new Quaternion();
sphere_collider_obj.transform.localScale = new Vector3(1.0f, 1.0f, 1.0f);
sphere_collider_obj.AddComponent <SphereCollider>();
HAPI_SphereInfo sphere_info = HoudiniHost.getSphereInfo(prGeoControl.prNodeId, part_info.id);
SphereCollider sphere_collider = sphere_collider_obj.GetComponent <SphereCollider>();
sphere_collider.center = new Vector3(
-sphere_info.center[0],
sphere_info.center[1],
sphere_info.center[2]);
sphere_collider.radius = sphere_info.radius;
sphere_collider.enabled = false;
sphere_collider.enabled = true;
removeComponent <MeshCollider>();
}