Before beginning to do 3-D drawing, you must learn CAD fundamentals and computer aided drafting. What type of computer and software is needed to get started? Answers here.
A PhD thesis in PDF format, introducing new volume graphics concepts. Includes background reviews of volume visualization and graphics. Also includes a specification of the vlib volume graphics API and describes volumetric ray-tracing. [PDF]
Papers about Monte Carlo and quasi-Monte Carlo methods, highly uniform point sets, particle methods for transport equations and wavelets and the lifting scheme.
Eric Veach and Leonidas J. Guibas describes a method for solving the light transport problem that performs especially well on problems that are usually considered difficult, e.g. those involving bright indirect light, small geometric holes, or glossy surfaces.