Illustrate the term ray tracing

Question

Illustrate the term ray tracing? And states its merits?

Answer 1

Ray tracing is a technique of creating realistic images by computer in this the paths of individual rays of light are followed from the viewer to their origin point. Any program that implements this technique of ray tracing is ray tracer. The major merit of method of ray tracing is it creates employ of the mathematics and real time physics behind light. Therefore the images generate can be strikingly, life similar to or realistic photo.