guys, you are misunderstanding something.
so he wanted textures that only appears on relaxed joints and force joints, so he can texture his relax some rainbow and texture his force like an armani suit.
but you guys interpreted this message as the "already implemented: joint textures", that kind of texture would texture a joint, and that texture appears on that joint whether it's relaxed or forced.
take your time to analyze the post please, you might see "trail texture alongside with normal trail" but you guys think "the trail texture is already in the game, buy one and enjoy your euphoria"