Hello, everyone. I am exploring mechanical rigging using bones, and have come across something I would like to get cleared up before proceeding. I understand that a bones Y-axis begins at the head and goes through the tip. Yet when I create a new armature in Blender 2.79, it shows the Z-axis going from head to tip. In the screenshot, you can see how the bone’s orientation matches the world orientation as show by the red, green, and blue widget in the bottom left of the picture. The bone is exactly as created, with no changes at all.
I guess my question is, is the bone’s Y-axis defined by the position of the head and tip?