GigaVoxels thesis online

Cyril Crassin has just posted his entire PhD thesis on GigaVoxels, the sparse voxel octree raycasting technology which supports efficient depth-of-field, soft shadows, animated voxel objects and indirect lighting at

http://blog.icare3d.org/2012/01/phd-thesis-gigavoxels.html

There are over 200 pages of voxel raytracing goodies :)