How to generate the stereographic projection of a 3D model Given a 3D model, is there a way to stereographically project it to a 2D image? In particular, I would only need a little more than half the model (the lower half) to be mapped to the plane (mapping the whole 3D model would be impossible, since the stereographic projection is infinite).

I am using Linux, if that makes any difference. Also, I would prefer to use free software.

(Note: If I could increase the viewing angle, I could do this with most any 3D viewing software, since the stereographic projection is just the view from a certain point with a wide viewing angle. In particular, I was able to get a small portion of the stereographic projection from meshlab.)
If instead of stereographic projection you can use other conformal projection. I would recommend you the "Least Squares Conformal Maps" algorithm. There are several implementations out there, including the prominent CGAL (https://doc.cgal.org/latest/Surface_mesh_parameterization/index.html).