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Now fix the orientation by going Skeleton > Orient Joint Tool (Options). In the Front view, go Skeleton > Joint Tool and draw a 2-joint chain starting somewhere close to the mid-line of the character and ending close to the shoulder. So, without further ado, let the rigging commence… Maya rigging – the shoulder and the arms A control will also be created to allow the animator to pick and choose which mode he/she would like to animate in. We will then use constraints and Set Driven Keys to define which set of joints (FK or IK) will drive the bind set. To do this we will create three sets of arm joints: an FK set, an IK set and a bind set. Lastly, we will want to add the ability to switch between FK and IK mode. This is just one of many ways to create such a result so do try out other methods such as using Multiply Divide nodes. To do this, we will add extra twist joints that are driven through an expression.

We also need to capture the natural fall-off that occurs as we twist the forearm, going from the prone to supine position.

But, as some animators prefer full control over a rig, we will make sure we can disable this feature. We will drive the scapula and the clavicle through an expression so, as the shoulder region or arm rotates, they will follow automatically. I prefer to do this as it just adds an extra level of deformation to the shoulder region and makes it feel as if there is an underlying structure beneath the hollow mesh. For this tutorial, we are going to take things a little further by creating a clavicle and a scapula joint and then the humerus and a radius/ulna joint. We could get away with just creating a single joint to act as the clavicle and scapula combined, another joint as the humerus and a final joint as the radius and ulna combined. In reality, the bones of the shoulder and the arm consist of the scapula, clavicle, humerus, radius and ulna. This time, we will set up the shoulders and the arms. Maya rigging: Introduction to rigging Maya rigging: Introduction to rigging a human torso Maya rigging: Introduction to rigging the neck and the head With an hour and a half of detailed video guidance, follow Jahirul in his latest Maya rigging guide for the shoulder and armsĪ Maya directory (3dt_rigging) has been supplied containing all scene files and scripts used in this project.