Skeleton > Orient Joint
 
 
 

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Skeleton > Orient Joint >

Orientation

Specifies the orientation of a joint’s local axis. The default selection is XYZ.

When none is selected, all your joint’s local axes have the orientation of the world axis.

All the other selections specify that the joint’s local axis be oriented so that the first axis points into the joint’s bone, the second axis points at right angles to the first and third axes, and the third axis points sideways from the joint and its bone.

All three axes are aligned according to the right hand rule. For example, if you select an Orientation of xyz, the positive X-axis points into the joint’s bone and towards the joint’s first child joint, the Y-axis points at right angles to the X-axis and Z-axis, and the Z-axis points sideways from the joint and its bone.

NoteIf you want a joint to rotate about a particular axis, that axis must not be the axis that points into the joint’s bone. For example, a joint can not rotate about its local X-axis if its orientation is set to XYZ.
Second Axis World Orientation

Sets the world axis (positive or negative) orientation for the second rotation axes of all the joints you create with the Joint Tool.

For example, if you select an Orientation of xyz and a Second Axis World Orientation of -z for a joint, then its X-axis points into the joint’s bone, the Y-axis is oriented with the negative Z world axis, the Z-axis points sideways (according to the right hand rule) from the joint and its bone. However, if a Second Axis World Orientation of none is selected, the Y-axis points at right angles to the X and Z axes.

Hierarchy

Select the option.

Orient child joints

When this option is on, the settings for Orient Joint will affect all the joints below the current joint in the skeleton’s hierarchy.

When this option is off, only the current joint is affected by the Orient Joint settings.

Scale

Select the option.

Reorient the local scale axes

When this option is on, the local scale axes of the current joint are also reoriented.