ray tracing

noun

variants or less commonly ray-tracing

ˈrā-ˌtrā-siŋ 

or raytracing

computers

: a process of creating digital images that include a simulation of real-world illumination by calculating the paths that individual beams of light would travel to a viewer's eye in a depicted scene

So, what even is ray tracing? Well, it's an advanced and lifelike way of rendering light and shadows in a scene. … However, because ray tracing works by simulating and tracking every ray of light produced by a source of lighting, it kind of takes a lot of horsepower …

—Jackie Thomas

Both companies eventually boasted that high-end graphical features such as ray-tracing would happen on smartphones.

—C. Scott Brown

While traditional lighting (AKA rasterization) in games works by essentially using clever trickery to approximate believable lighting, raytracing behaves much more like real light, simulating the actual path light rays would take from their source to your eyes.

—Napier Lopez

ray-tracing capabilities

a GPU with improved ray tracing performance

Examples of ray tracing in a Sentence

Recent Examples on the Web

With ray tracing, the system calculates the precise path of light beams for more realistic and dynamic reflections and shadows. —Michael Irving, New Atlas, 10 Sep. 2024

As for ray tracing, that’s a feature that’s been supported in the PS5 since launch. —Antonio G. Di Benedetto, The Verge, 11 Sep. 2024

Currently, most games give you a choice of fidelity or performance mode – the former focuses on ray tracing and 4K resolution at 30 frames per second, while the latter drops some of the detail in favor of a silky smooth 60-fps frame rate. —Michael Irving, New Atlas, 10 Sep. 2024

Spider-Man: Miles Morales on PS5, with ray tracing enabled. —Kyle Orland, Ars Technica, 30 May 2024

These make for features such as hardware acceleration for ray tracing, dynamic caching, and mesh shading, all of which will improve the iPad Pro as a gaming device. —Eric Zeman, PCMAG, 15 May 2024

All of Sony’s changes point to a PS5 Pro that will be far more capable of rendering games with ray tracing enabled or hitting higher resolutions and frame rates in certain titles. —Tom Warren, The Verge, 15 Apr. 2024

The key to Chaos’ new development is the use of a type of rendering known as ray tracing (the new development combines the use of Chao’s V-Ray ray tracing tool with additional new tech). —Carolyn Giardina, Variety, 4 Apr. 2024

Reports from over the summer suggest developers have been shown demos of the upcoming hardware supporting modern graphical effects like ray tracing and DLSS. —Kyle Orland, Ars Technica, 26 Jan. 2024

Word History

First Known Use

1971, in the meaning defined above