Character models can include props - separate object that the character holds in their hands, such as tools or weapons. This page describes how such props should be rigged.
After proto objects for the rest of the character are set up:
1. Select the prop joint.
2. Click the Add rig element button to create a proto component for it.
If your prop object has multiple joints, you can select only the first and the last one in the chain and create only one rigid body for the whole prop.
3. Change the width of your newly created proto component and set a mass for it.
4. Adjust the size of the box controller.
5. (optional) Create an additional point.
6. Open the Proto union behavior tab in the Outliner window.7. Disable Bind with parent.
If your prop joint is not a part of the character’s joint chain, you should manually move its proto component to an appropriate position in the rig hierarchy.
8. Use the Left Mouse Button to drag it in the Outliner window.
9. Select your prop’s proto component.
10. Create a center of mass for it by clicking Add button in the Prototype center of mass section of the Rigging Tool.
Don’t forget to properly name the newly created Center of Mass.
11. Select all of the character’s proto objects except your prop’s proto component and create a center of mass for the character.
12. Select both of the newly created centers of mass.
13. Create a common center of mass for them by clicking the Add button in the Prototype center of mass section.
14. Now, the rig can be finalized.