Over the last few years, if you’re a gamer or PC hardware enthusiast, you’ve probably heard the term “ray-tracing” bandied about quite a bit. Actually, you likely heard it before that, but with the advent of Microsoft’s DirectX Ray-Tracing and NVIDIA’s RTX branding, ray-tracing has hit the mainstream.

The original concept of “ray-tracing”

Source: Hot Hardware – Forget Old School Ray Tracing, NVIDIA Demos Stunning Real-Time Path Tracing