Ray Tracing for Global Illumination Nelson Max

This is the syllabus for ECS275, Fall 2012

Lecture 27 consists of the fall 2011 student project presentations.

Lecture 26 discusses multiple reflections in precomputed radiance transfer and hierarchical radiosity, with subdivision oracles and the push-pull method for shooting and gathering radiosity. (At 12 minutes, the factor of y_i(Psi_k) is not needed in the integral, since the integral for computing t_i^0 already involves that factor. The word "octtree" should be replaced many times by "quadtree", since we are doing quadtree subdivision.)

Lecture 25 discusses ambient occlusion, precomputed radiance transfer, spherical harmonics, and computing the coefficients of the spherical harmonics series by ray tracing. (At 24:24 minutes, the relation should read z^2 = 1 - x^2 - y^2, not z^2 = 1 - x^2 + y^2.)

Lecture 24 defines the extinction coefficient, scattering coefficient and albedo, derives the differential equation for radiance transport in a participating medium, shows how to create a photon map for a participating medium and how to integrate its inscattering along a viewing ray. (At 12 minutes "d omega" should be "d omega' ". The end of the bidirectional path tracing discussion should have included a factor of the transparency along the dotted line.)

Lecture 23 describes photon mapping on surfaces and extinction as well as transparency in participating media. (At 37:40 minutes, the fraction that gets through should be 1 - sigma_t*ds, not 1 - sigma_t.)