As I know, all animation editors rotate joint by the shortest way possible (for example, if start rotation is 20 degrees and end rotation is 60 degrees, animation editor will automatically tween rotation clockwise, because it is the shortest way), and I don’t know how to make it choose “longest” way (rotate counterclockwise for this example). I am using both default Roblox Animation Editor and Moon Animation Editor (recently started to use 2nd option more often), but I haven’t seen any option to rotate joint in opposite direction. Can anyone tell me how to make editors rotate joints in opposite direction? (WITHOUT creating additional keyframes to correct rotation)
Have you tried setting the value of the keyframe to a negative?