[JAVA3D] Problems with Lights and Materials

[Dani F.]

Hi everybody:   I have a problem with lights and the material of the object. The first thing I do is to set the Appearance of an object. I create a new Appearance, then I create a new Material and set the color of the material with setAmbientColor, setDifusseColor and setEmissiveColor to the color I have chosen. When I add a light to the scene, for example a red light, the effect over the object (for ex. a sphere with white appearance) is that nothing is seen. If I set the sphere's color to another one (blue) then the light appears, but the reflection is always white... What am I doing bad?   Thanks forwarding,       Dani.