These images were taken from my recent demo that show's off a few pixel shader effects. Here are a few of the features:
Full use of vertex/pixel shaders using effect files. (no fixed function rendering)
A parallax bump mapped material
A procedural wood material with variable wood-ring-axis orientation.
A glass material with variable reflection, refraction and index of reflection.
Realtime dynamic shadows using shadow maps.
Realtime dynamic cubemap for reflections/refactions using render to texture.
A screenspace feedback using render to texture.
several feedback effects that can be combined using the UI at runtime
a warping effect that makes it look like you're under water
several sliders for playing with effect parameters at runtime
uses C# and DirectX9
You can view a 7 minute video explaining it in greater detail and a few more screen shots on my website. The source and binary is also provided there.