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Legacy Reference

Using physParentFrames

If a character joint needs to rotate beyond the -90 to 90 degree y-axis limit range, a physParentFrame node can be created. For example, if you need a joint that needs to rotate in the -120 to 120 degree y-axis limit range, you would create a physParentFrame node or group for the joint. The physParentFrame node could have a -50 to 50 degree y-axis limit range and the phys mesh could have a -70 to 70 degree y-axis limit range to have the joint combine to a -120 to 120 degree y-axis limit range.

You do not need to use another mesh for the physParentFrame. You can use a group node (for Maya) or dummy (for 3ds Max) as the physParentFrame.

In Maya, the naming convention for a physParentFrame is joint name + _physParentFrame suffix (not case sensitive).

In 3ds Max, the naming convention for a physParentFrame is joint name + physParentFrame suffix (not case sensitive).

You nest the physParentFrame under the joint and nest the physics mesh under the physParentFrame.