Physical Joint Limits

General Introduction

Each of human body bone has its own rotation limit, such as elbow and calf, they can only rotate in 1 DOF(degree of freedom). So we need to setup the physical joint accroding to the real situation.

Attribute Meaning

And the same attribute name maybe have different meanning if the different joint type. The swing attribute cannot be the negtive value.

_{Joint types and limit attributes}

Instructions

Ball Joint

Ball joint can swing in 2 DOF and twist (sum 3 DOF)

_{Ball joint example}

_{Ball joint swing and twist limit}

Once select the physical joint, it will become to a visible manipulator

_{Left non-selected, Right Selected}

_{The ball joint setup (Blue: swing down, red: swing up, yellow and purple: twist in counter/clockwise)}

_{(From left to right) Small range of rotate, middle range or rotate, wide range of rotate}

Shoulder joint

Shoulder joint can swing only (2 DOF), cannot twist

_{Shoulder joint limit, swing up and down limit}

Hinge joint

Hinge joint can rotate around 1 axis (1 DOF)

_{Hinge example}

_{Hinge joint rotation limit (the right one: can be rotate back easy but cannot rotate to forward)}