UL contributes ray tracing expertise to new book
March 7, 2019
We're incredibly proud of our 3DMark team for contributing two chapters to Ray Tracing Gems — a new book full of advice and best practice from experts in the field.
Ray Tracing Gems is a must-have reference for developers, students, and graphics enthusiasts looking for the key building blocks and latest techniques for implementing real-time ray tracing in games, applications, visualizations, and more.
Our 3DMark development team contributed two chapters based on the techniques we used in 3DMark Port Royal, a real-time ray tracing benchmark that we released earlier this year.
Real-Time Global Illumination with Photon Mapping
Niklas Smal, Maksim Aizenshtein
Indirect lighting, also known as global illumination, is a crucial effect in photorealistic images. While there are a number of effective global illumination techniques based on precomputation that work well with static scenes, including global illumination for scenes with dynamic lighting and dynamic geometry remains a challenging problem. In this chapter, we describe a real-time global illumination algorithm based on photon mapping that evaluates several bounces of indirect lighting without any precomputed data in scenes with both dynamic lighting and fully dynamic geometry. We explain both the pre- and post-processing steps required to achieve dynamic high-quality illumination within the limits of a realtime frame budget.
Accurate Real-Time Specular Reflections with Radiance Caching
Antti Hirvonen, Atte Seppälä, Maksim Aizenshtein, Niklas Smal
We present an algorithm for perspective-correct, real-time specular illumination for surfaces of varying glossiness in dynamic environments. Our algorithm leverages properties from earlier techniques (e.g., radiance probes and screenspace reflections) while reducing the amount of visual errors by adding ray tracing to the rendering pipeline. Our algorithm extends previous work by allowing accurate reflections for all surfaces regardless of the material, and it has global coherence (i.e., there are no visible discontinuities). With radiance caching, multiple samples can be efficiently computed as the radiance computation is decoupled from the final shading. The radiance cache is also used to approximate the specular term for the roughest surfaces without any ray tracing.
Ray Tracing Gems is available to download now for free.
Benchmarks.ul.com is now available in German
July 9, 2020
UL Delists MediaTek-Powered Phones with Suspect Benchmark Scores
April 15, 2020
PCMark 10 Storage Benchmarks add new language support
February 20, 2020
PCMark 10 benchmark shows performance improvement with new Microsoft Edge browser
February 6, 2020
3DMark is now available in Traditional Chinese
January 21, 2020
Announcing end of support for 3DMark 11, PCMark 7, Powermark, 3DMark Cloud Gate, and 3DMark Ice Storm
December 19, 2019
Test SSD performance with new PCMark 10 Storage Benchmarks
December 11, 2019
New ways to test Variable-Rate Shading with 3DMark
December 5, 2019
Test Variable-Rate Shading with 3DMark
August 26, 2019
Variable-Rate Shading test coming to 3DMark
July 18, 2019
Test PCIe 4.0 bandwidth with 3DMark
June 25, 2019
New PCIe 4.0 test coming to 3DMark
June 11, 2019
PCMark 10 introduces a better way to test battery life
May 27, 2019
Now you can test PC performance with Microsoft Office apps in PCMark 10
May 27, 2019
New drivers enable ray tracing on NVIDIA GeForce GTX graphics cards
April 11, 2019