Geometry

Visual reference for Geometry Retopo Update.
Geometry Retopo Update
Snaps the vertecies on the Retopo mesh, to align with the hi-res mesh:
Snaps the vertecies on the Retopo mesh, to align with the hi-res mesh:

If you have moved some points,to make more nicly aligned edge loops, then you can run this, to re-snap all the points to the hi-res mesh: