An addon for 3D editing applications that optimizes/simplifies the meshes.
Metasequoia is a polygon modeler for 3DCG and game development.
This program lets the users create NURBS surfaces from the OBJ polygon mesh.
Polycount is an ArchiCAD add-on that helps you control the number of 3D polygons
Combines geometries using the spatial methods STDifference, STIntersection, etc.
