Hacker News with Generative AI: Ray Tracing

Marching Events: What does iCalendar have to do with ray marching? (pwy.io)
Recently I've been cursed blessed with the opportunity of implementing a library for operating on iCalendar files. If you haven't heard of them, you probably have - it's the format used to transfer e-mail RSVPs, to name a thing:

Programming, Calendar, Ray Tracing

115 points by Patryk27 10 days ago | 46 comments

RDNA 4's Raytracing Improvements (chipsandcheese.com)
Raytraced effects have gained increasing adoption in AAA titles, adding an extra graphics quality tier beyond traditional “ultra” settings.

Graphics, Gaming, Technology, Ray Tracing

6 points by rbanffy 12 days ago | 0 comments

Measuring Acceleration Structures (zeux.io)
Hardware accelerated raytracing, as supported by DirectX 12 and Vulkan, relies on an abstract data structure that stores scene geometry, known as “acceleration structure” and often referred to as “BVH” or “BLAS”. Unlike geometry representation for rasterization, rendering engines can not customize the data layout; unlike texture formats, the layout is not standardized across vendors.

Graphics, Computer Graphics, Hardware, Ray Tracing, Game Development

79 points by ibobev 24 days ago | 6 comments

Measuring Acceleration Structures (zeux.io)
Hardware accelerated raytracing, as supported by DirectX 12 and Vulkan, relies on an abstract data structure that stores scene geometry, known as “acceleration structure” and often referred to as “BVH” or “BLAS”. Unlike geometry representation for rasterization, rendering engines can not customize the data layout; unlike texture formats, the layout is not standardized across vendors.

Hardware, Ray Tracing, Computer Graphics

18 points by luu 25 days ago | 0 comments

The DDA Algorithm, explained interactively (aaaa.sh)
I've written a number of voxel raytracers, and all of them (all the good ones, at least) use the Digital Differential Analyzer Algorithm for raycasting.

Computer Graphics, Algorithms, Ray Tracing

108 points by ibobev 25 days ago | 16 comments

Half-Life 2 RTX (steampowered.com)
Re-live the groundbreaking, critically acclaimed Half-Life 2 like never before, reimagined with RTX Remix. Featuring full ray tracing, remastered assets, and DLSS 4 with Multi Frame Generation, this DLC is free for Half-Life 2 owners.

Gaming, Ray Tracing, Half-Life, DLC, RTX

138 points by NewHatMatt 39 days ago | 81 comments

Raytracing on Intel's Arc B580 (chipsandcheese.com)
Intel’s discrete GPU strategy has emphasized add-on features ever since Alchemist launched. Right from the start, Intel invested heavily in dedicated matrix multiplication units, raytracing accelerators, and hardware video codecs. Battlemage continues that trend. Raytracing deserves attention because raytraced effects are gaining prominence on an increasing number of titles.

Graphics Cards, Ray Tracing, Intel, Gaming

101 points by rbanffy 41 days ago | 86 comments

Radiant Foam: Real-Time Differentiable Ray Tracing (radfoam.github.io)
Research on differentiable scene representations is consistently moving towards more efficient, real-time models.

Real-Time Rendering, Differentiable Programming, Computer Graphics, Ray Tracing

212 points by w-m 81 days ago | 23 comments

Ray Tracing in One Weekend (raytracing.github.io)
I’ve taught many graphics classes over the years. Often I do them in ray tracing, because you are forced to write all the code, but you can still get cool images with no API. I decided to adapt my course notes into a how-to, to get you to a cool program as quickly as possible. It will not be a full-featured ray tracer, but it does have the indirect lighting which has made ray tracing a staple in movies.

Computer Graphics, Programming, Ray Tracing, Tutorials

110 points by bjourne 114 days ago | 14 comments

Show HN: I've made a Monte-Carlo raytracer for glTF scenes in WebGPU (github.com/lisyarus)
This is a GPU "software" raytracer (i.e. using manual ray-scene intersections and not RTX) written using the WebGPU API. It expects a single glTF scene as input. It supports flat-colored and textured materials with albedo, normal, and material maps. It doesn't support refraction (yet).

WebGPU, 3D Graphics, Ray Tracing, Computer Graphics, Software

131 points by lisyarus 121 days ago | 37 comments

Show HN: Library to replace box shadows on a webpage with ray traced shadows (steren.fr)
rtx-on.js is an experimental JavaScript library that enhances web pages by simulating in real time realistic lights and shadows using ray tracing.

Web Development, JavaScript, Graphics, Ray Tracing, Open Source

10 points by steren 132 days ago | 0 comments

Rendering Tiny Glades with Entirely Too Much Ray Marching [video] (youtube.com)

Rendering, 3D Graphics, Video, Ray Tracing

10 points by kibwen 140 days ago | 3 comments

Amanatides and Woo's fast voxel traversal (m4xc.dev)
In this article we will dive deep into Amanatides and Woo's fast voxel traversal algorithm. Designed for, however not limited to, ray tracing voxel grids.

Algorithms, Ray Tracing, Computer Graphics

12 points by ibobev 182 days ago | 1 comments

Ray Tracing Harmonic Functions (markjgillespie.com)

Ray Tracing, Computer Graphics, Mathematics

80 points by ghub-mmulet 259 days ago | 11 comments

Show HN: Ray Tracing in One Weekend v4.0.0 (raytracing.github.io)

Computer Graphics, Programming, Ray Tracing

69 points by hollasch 273 days ago | 4 comments

3D Gaussian Ray Tracing: Fast Tracing of Particle Scenes (gaussiantracer.github.io)

3D Graphics, Computer Graphics, Ray Tracing

29 points by jasondavies 289 days ago | 1 comments

3D Gaussian Ray Tracing: Fast Tracing of Particle Scenes (gaussiantracer.github.io)