Ped3D is a simple 3D modeling and rendering library. More documentation is forthcoming.
Ped3D will reads a list of dots and line segments out of a text file. If the first character of a line is alphabetic, it's discarded, and any line without three or six floats on it is ignored, so molecular description files work just fine.
You can navigate through the viewspace using 14 keys on the keypad.