Per Pixel Lighting, Normal Mapping and Parallax Mapping

just added tangent-space normal mapping to the small test application, fragment and vertex programs rock! Now I just need to add parallax mapping and show a more interesting object than a plane :).

Update. I just implemented parallax mapping. See if you can figure out, on which of the three screenshots, the effect is enabled. The effect is, due to the nature of parallax, best seen when the camera is moving.