Penguin
Penguin brings freehand sketching, watercolor painting and cartoon-like rendering to Rhino and AutoCAD.
Penguin is a conceptual, sketch and cartoon, non-photometric scan line renderer. With Penguin you can create stylized images of your models with an artistic look for enhanced graphic and visual appeal.
Penguin runs inside Rhino and has the same hardware requirements. Rhino with Penguin runs on ordinary Windows desktop and laptop computers. Penguin works with Rhino 2 and Rhino 3.
No special hardware is needed beyond what is required for AutoCAD.
Penguin works with AutoCAD 2000, 2000i, 2002, 2004, 2005 and 2006.