Lighting Problem Strange Sphere?

Im kinda Newbie with the JME and I’m trying to learn from the basics so i work with a extends BaseGame



Now my Problem:



Im Setting up my Sphere and my Lights but it seems the sphere is kinda transparent look at this so you know how to fix that?:



http://img165.imageshack.us/img165/3182/graphicsdk4.jpg

Maybe setting the cull state, so that only the front faces are being drawn helps, also do you have a ZBufferState in the scene ?



  CullState cullState = display.getRenderer().createCullState();
        cullState.setCullFace(Face.Back);
        sphere.setRenderState( cullState );

Well thanks buddy the cullstate was missing … i'll also add the zbufferstate

It looks like a normal inversion.