Curious about what happens with OpenSCAD as it renders CSG geometry and STLs. Here we export the same cube:
modeled in various ways and export STLs and compare the log values as a representation of the complexity of the internal mesh.
The most basic example:
cube(size = [4,9,1], center = false);
which the log reports as:
Rendering Polygon Mesh using CGAL... Geometries in cache: 2 Geometry cache size in bytes: 1456 CGAL Polyhedrons in cache: 0 CGAL cache size in bytes: 0 Total rendering time: 0:00:00.020 Top level object is a 3D object: Facets: 6