Monte Carlo ray-tracing computer programs, which simulate the propagation of light through three-dimensional computer models, have their origin in the 1960s. Progress in Monte Carlo ray-tracing software has proceeded on three fronts since then, in the fields of optical design and analysis, the radiation transfer part of the thermal analysis problem, and in photorealistic computer graphics rendering. We will trace the history of the Monte Carlo method from its roots in numerical experiments beginning in ancient times. We will follow through to modern-day software for design and analysis of imaging and non-imaging optical systems, as well as the production of photorealistic synthetic images in films, and now, computer games.

Ed Freniere is founder and president of Lambda Research Corporation.  He is the principal architect and designer of the TracePro software for design and analysis of optical systems. His experience includes development of optical analysis software, stray light analysis and measurement, baffle design, design and analysis of non-imaging optical systems, infrared system analysis, radiometry and photometry, scattering and diffraction theory, Fourier optics, development of automated optical testing systems, and interferogram analysis software. He is a member of the OSA, SPIE and IESNA, and in a previous millennium served as president of the NES/OSA.