For more details see the source code. You can pass an empty list to create an empty scene. In addition, objects can have one or more properties that affect their appearance. The most important property is the material , which defines color, transparency, reflectivity, etc. See a book on VRML for the full possibilities.
Attributes are always optional and specified by keyword parameters.
An object with no material specification has a white diffuse material by default. The available colors are black, white, grey, red, green, blue, yellow, magenta, and cyan. The edges are oriented along the x, y, and z axes. IO.TextFile import TextFile from Scientific. IO.FortranFormat import FortranFormat, FortranLine from Scientific.