Some of the navigation controls don't quite behave right. Jumping forward and back (g and b keys) can send you off in to space. Rotation around world origin (q and e) is not aligned with the model. Jump to starting point (x) is influenced by previous changes of dummy_center_node. If you tilt up or down, then go forward with w or up arrow, it's not in a straight line. The movement on the (world) y axis is much greater than the z axis, so you go forward (or backward) quickly but only gently rise or drop. Is this bad?
Some of the navigation controls don't quite behave right. Jumping forward and back (g and b keys) can send you off in to space. Rotation around world origin (q and e) is not aligned with the model. Jump to starting point (x) is influenced by previous changes of dummy_center_node. If you tilt up or down, then go forward with w or up arrow, it's not in a straight line. The movement on the (world) y axis is much greater than the z axis, so you go forward (or backward) quickly but only gently rise or drop. Is this bad?