Path Tracing in Games Explained: Why ‘Full Ray Tracing’ Is Different
What path tracing is, how it differs from hybrid ray tracing, why it depends on denoising and upscaling, and the games that brought it to real time.
What path tracing is, how it differs from hybrid ray tracing, why it depends on denoising and upscaling, and the games that brought it to real time.
How Lumen lights Unreal Engine 5 games in real time: bounce light, screen traces, the surface cache, software vs hardware ray tracing and common artifacts.
How Unreal Engine 5's Nanite works: triangle clusters, a hierarchy of detail, streaming, software rasterization of tiny triangles, and its limits.
A step-by-step tour of the real-time graphics pipeline, from vertices and triangles to pixel shading, the depth buffer and the final frame.
What ray tracing actually does in games, how it differs from rasterization, which effects get ray traced, and why it costs so much performance.