Part 7: Mixture Densities

The following images show uniform sampling, sampling the BRDF, sampling towards light sources, and mixture sampling respectively. Each image is 512x512 and was rendered at only 256 samples per pixel to better contrast the techniques. A 4x4 pixel importance-sampled b-spline filter was used for antialiasing and stratification over the pixel area and wavelength was done using a low-discrepency Hammersley sequence.

Uniform Sampling BRDF Sampling Light Sampling Mixture Sampling
Last modified: Fri Jul 22 01:36:31 MDT 2005