Tech Demo: Arauna – Raytracing and Global Illumination
Arauna is a Direct3D 9 real time ray tracer with global illumination (GI) support. On my system (Core2Duo 8400 + GeForce GTS 250 + WinXP sp2 32-bit), the demo runs at around 10 FPS. Both CPU cores are used and the author recommends a Core i7 to get optimal performance.
You can download the demo here: arauna_gi.zip (16Mb).