eli5 how CGI lighting worked before Ray tracing.

Question

eli5 how CGI lighting worked before Ray tracing.

In: 2

Answer 1

A common shortcut for lighting in games and film was a technique called ‘path tracing’ where the computer would know the camera position and light source position, amd trace the path backwards from the camera to the light source, including the reflections.

Much faster and simpler with mostly the same effectiveness