Saiju - 2007-09-10

I am very new to u3d domain.
I am trying to convert a model from Off file format to U3d.
In Off file each face and vertex may contain colors. What is the easiest way to map these colors to U3d?- Using shaders?.In that case for each color do I need to create a shader object, material object and shader list. This means for complex models with a large number of faces, there will be a large number of shader objects.

Do I need to use textures?

Thanks,
Saiju