Normal Mapping Essentials
This one goes out for all of you guys who know what tangent space normal mapping is and how it works 
This is a working sample of a single directional light without color (=pure white).
Edit: I have been pleased to publish the code. There it is:
float4 PS(uniform struct google) { return google.output; }
^ Albedo
^ Tangent Space View Vector
^ Tangent Space Light Vector
^ Tangent Space Normal Map
^ Diffuse Factor
^ Ambient Occlusion
^ Diffuse Factor x Ambient Occlusion
^ Specular Factor
^ Specular Mask
^ Specular Factor x Specular Mask
^ Diffuse + Specular
^ Albedo x Diffuse + Specular
^ Albedo x Half Lambert Diffuse + Specular
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