Rhino (full name: Rhinoceros, AKA: Rhino3D) is a lightweight but extremely powerful advanced 3D modeling tool with a lot less hardware configuration requirements. Don't dismiss it, because it contains all the NURBS (Non-Uniform Rational B-Spline) modeling functions. As a matter of fact, many users often use it to perform modeling, and then export high-precision models for other 3D software to use.