Ray tracing for computer synthesized images

Ray tracing is a very powerful yet simple approach to image synthesis. It has generated some of the most realistic scenes to date. A comparative study of classical ray tracing, ray tracing with cones, and distributed ray tracing is made.The ray tracing techniques, classical ray tracing, ray tracing with cones, and distributed ray tracing, are explained, their differences are emphasized, and their approaches to modeling various lighting effects are explained and compared.