Research & Development for 3D & the Web

Arm Rig with Controls

• Create an IK from Shoulder to Wrist. This IK needs to be a RPSolver (rotation plane) IK type
• Create a circle
• shape it however you want
• freeze transformations and delete history
• select joint, select circle – point constraint & orient constraint
• delete the constraints from the side panel
• Create a ‘null object group’ by SPACE > Edit > Group
• do the same thing and select joint, then null object group – point & orient constraints and delete the constraints
• parent the circle UNDER the null object group by hitting ‘P’ or dragging it under
• nurbs circle should have it’s values zero’d out which is the whole point…
• parent the IK handle underneath (not sure if that’s the null object group or the circle – probably circle)
• select the control, selct the joint and go to constrain > orient[] and ensure that you have maintain axes off and set it to all axies.

Pole Vector Constraints

• make a nurbs circle
• snap it to the shoulder/hip
• drag it outwards from the joint and freeze transformations/delete history
• make it look pretty…
• selct the control, then the IK handle and select Pole Vector Constraint