Re: Mathematica Color

[slevy]

> When using geomview through mathematica, the 3D graphics are colorless. Is
> this supposed to be?  If not what is the possible cause(s) of the problem?

The difference arises since geomview uses colorless lights by default,
and the mathematica->geomview package doesn't pass along Mathematica's
colored lights.

You can install Mathematica's default lighting setup -- from the LightSources
field of Options[Plot3D] -- into geomview by loading the following file
(or by placing this command in your ~/.geomview file):

(merge-baseap {
    lighting {
	replacelights
        light { position 1 0 1 0   color 1 0 0 }
        light { position 1 1 1 0   color 0 1 0 }
        light { position 0 1 1 0   color 0 0 1 }
    }
 })

Note the trailing "0" on the position of each light, indicating an
infinitely distant light source.

   Stuart