Raytracing tries to create images by simulating how light bounces around an environment. It’s physically-based in that it uses laws of physics/optics to do that (e.g., Snell’s Law when light passes through different media), rather than some method that just happens to look cool.
Raytracing tries to create images by simulating how light bounces around an environment. It’s physically-based in that it uses laws of physics/optics to do that (e.g., Snell’s Law when light passes through different media), rather than some method that just happens to look cool.