why the object in the ofusion view cannt variet by the light

i have lean the Normal Mapping with GPU shaders carefully.But the end isnnt the expect.The object donnt variet by the move of light .(i dinnt choose the same pecture in the process but i choose the smilies pecture)

Is the "Generate Tangent Vectors" enabled for your object(s)?

Have you downloaded the tutorial's "Normal Mapping" scene from the "Scenes" section (http://www.ofusiontechnologies.com/scenes.html) ?

is it correctly displayed in the preview viewport?

What RenderSystem are you using in the preview viewport?

thanks for your remind.It is ok now