The demogroup farbrausch has released a nice Direct3D 9 prod that requires a powerful system to get a smooth frame rate.
you really need a fast graphics card for this. this demo burns fillrate and bandwidth like it’s going out of fashion. it also has a bunch of rather long shaders, some way too expensive unoptimized postprocessing effects and needs vertex textures for the full experience. you also need d3dx9_40.dll. if it’s way too slow on your machine, pick a lower resolution. if it doesn’t run at all OH COME ON IT’S ALMOST 2010, GET A SHADER LEVEL 3 GRAPHICS CARD ALREADY! this is real time, not amateur hour.
You can download the fr-062 demo HERE.