It's output from a montecarlo path tracer I wrote. It demonstrates motion
blur (flamingo), caustics (the reflection of the gold ashtray on the wall),
color bleeding (green of the leaves on the petals), soft shadows and area
The lighting is physically accurate global illumination. It uses irradiance
caching for indirect illumination computation, augmented by a model of the
human visual system that takes into account visual importance as well as the
sensitivity of the human visual system to spatial frequencies and movement.