Rhinoceros for Students from Robert McNeel.
Rhino can create, edit, analyse, document, render, animate, and translate NURBS* curves, surfaces, and solids, point clouds, and polygon meshes. There are no limits on complexity, degree, or size beyond those of your hardware.
New in Rhino 6
The Rhino 6 development process started with the overriding goal to remove as many of your workflow bottlenecks as possible, in addition to making thousands of large and small improvements. That meant making Rhino faster and able to handle much larger models and project teams.
For a comprehensive list of the latest features for Rhino 6, visit here.