Do I need a navmesh to move and use behavior tree if my “AI” is flying and I am not using any pathfinding?

Thanks, I will look into move directly towards.

It’s 3D. I am familiar with DoN’s pathfinding, but I think it’s not intended for my type of project. I end up with too many voxels. And I don’t really need obstacle avoidance, I just need to be able to chase an actor. I guess I could try using move to actor with DoN and turning pathfinding off, maybe then I could potentially just use one single huge voxel.