Images computed with hierarchical Monte Carlo radiosity, with per-ray refinement (under 1 minute CPU time for up to 500,000 surface elements).
(See Figure 6.28.)
A car model rendering under real-world illumination, using a high dynamic range light probe (left images, photographs at various shutter times shown on top) and a histogram method.
(See Figure 6.14.)
Images rendered with a kernel density estimation method. ...