There's a somewhat standard way of including per-vetex color with obj files:
Geometric Vertex A vertex can be specified in a line starting with the letter "v". That is followed by (x,y,z[,w]) coordinates. W is optional and defaults to 1.0. Some applications support vertex colors, by putting red, green and blue values after x y and z. The color values range from 0 to 1.
v x y z r g b
I have some data that uses this feature, but Import loses the color.
I know that GraphicsComplex supports per-vertex color, it's just not used in the .obj importer.
Has anyone written an importer supporting color yet? Shouldn't be too hard, but why reinvent the wheel, maybe there's an "extended 3d model import" package somewhere?
Trivial example file:
v 0 0 0 1 0 0 v 1 0 0 0 1 0 v 0 1 0 0 0 1 f 1 2 3