Remaking the Topology Retopo (“remake topology”) is a tool for
remaking the topology of a mesh. It’s the opposite of the
sculpting (or deforming) tools: instead of reshaping the model
but leaving the topology the same, it reforms the topology, but
maintains (as much as possible) the same shape as the original
model. You will not change the geometry of the original mesh in
any way, you will be creating a new mesh that is projected upon
an existing mesh. There are three ways to use retopo: - Retopo
paint, where you paint lines on the mesh and painted
intersections become vertex locations. - Creating new mesh via
standard mesh editing methods (the new vertices will “stick” to
the reference object’s surface). - Projecting an existing mesh
onto the object. In practice one usually uses all three
together. Retopo is controlled from the Mesh panel in the
Editing context (F9). The Retopo button appears when a mesh is
selected and Edit mode is active. When the Retopo toggle button
is pressed, any change to a vertex wil