oRel

oRel can be used to calculate the motion of one object relative to another in the scene.

** Steps **

1. Select the proximal object in the scene (the object that you want to calculate motion relative to) and click "Insert Selection."
2. Select the distal object in the scene (the object that you want to calculate the relative motion of) and click "Insert Selection."
3. Replace the "m" text under Output Node with the name you would like to give your resulting data node.
4. Click "Output relative data."
5. Click "Close" to exit the dialog box.

This creates a data node (a locator) with rotations and translations that can be viewed in the Graph Editor and/or exported.

Note: the object of interest may not be the animated objects. Many types of relationships can affect an objects transforms including parenting relationships, connected attributes, constraints, and expressions. When calculating Orel, Keyframes are taken from a single object based on the following order.

1. The object itself
2. Its direct parent
3. A node above the parent in the hierarchy
4. A connections driving the object itself (Connected Attr, Constraint, Expression)
5. A connections driving the direct parent of the object (Connected Attr, Constraint, Expression)
6. A connections driving the A node above the parent in the hierarchy (Connected Attr, Constraint, Expression)