Fightura

**Elbows and knees look right now.**

Positions and normals were travelling through a fold separately, so past a
gentle bend the limb was lit as the shape it used to be — 83 degrees off at a
swimming stroke. That was the hard bright edge across the joint. Normals now
come off the posed face.

A fold also no longer inflates the limb, which halves the lump at the elbow, and
its turn is spread evenly instead of piling into the middle of the bend.