Bone Roll

In Edit Mode, you can control the bone roll (i.e. the rotation around the Y axis of the bone).

However, after editing the armature, or when using Euler Rotation, you may want to set the bone roll.

Recalculate Roll

Reference

Mode:

Edit Mode

Menu:

Armature ‣ Bone Roll ‣ Recalculate Roll

Shortcut:

Shift-N

Axis Orientation

Local Tangent

Align roll relative to the axis defined by the bone and its parent.

X, Z

Global Axis

Align roll to global X, Y, Z axis.

X, Y, Z

Active Bone

Follow the rotation of the active bone.

View Axis

Set the roll to align with the viewport.

Cursor

Set the roll towards the 3D cursor.

Flip Axis

Reverse the axis direction.

Shortest Rotation

Avoids rolling the bone over 90 degrees from its current value.

Set Roll

Reference

Mode:

Edit Mode

Menu:

Armature ‣ Bone Roll ‣ Set Roll

Shortcut:

Ctrl-R

This is a transform mode where you can edit the roll of all selected bones.