DXR

Jul 19, 2021

Reducing Acceleration Structure Memory with NVIDIA RTXMU

Acceleration structures spatially organize geometry to accelerate ray tracing traversal performance. When you create an acceleration structure, a conservative...
11 MIN READ
May 20, 2021

Tips: Acceleration Structure Compaction

In ray tracing, more geometries can reside in the GPU memory than with the rasterization approach because rays may hit the geometries out of the view frustum....
7 MIN READ
Jan 29, 2021

Managing Memory for Acceleration Structures in DirectX Raytracing

In Microsoft Direct3D, anything that uses memory is considered a resource: textures, vertex buffers, index buffers, render targets, constant buffers, structured...
6 MIN READ
Aug 10, 2020

Best Practices: Using NVIDIA RTX Ray Tracing (Updated)

This post gathers best practices based on...
23 MIN READ
Apr 29, 2020

Profiling DXR Shaders with Timer Instrumentation

Optimizing real-time graphics applications for maximum performance can be a challenging endeavor, and ray tracing is no exception. Whether you want to make your...
9 MIN READ
Mar 30, 2020

Optimizing VK/VKR and DX12/DXR Applications Using Nsight Graphics: GPU Trace Advanced Mode Metrics

Many GPU performance analysis tools are based on a capture and replay mechanism, where a frame is first captured (either in-memory or to disk), and then...
12 MIN READ
Feb 21, 2020

Bringing HLSL Ray Tracing to Vulkan

This post was revised March 2020 to reflect newly added support in DXC for targeting the SPV_KHR_ray_tracing multi-vendor extension. Vulkan logo DirectX Ray...
9 MIN READ
Apr 01, 2019

Introduction to Ray Tracing in Unreal Engine 4.22

Epic Games is adding ‘Early Access’ support for ray tracing through the DirectX Raytracing API (DXR) to Unreal Engine with the pending release of Unreal...
12 MIN READ
Mar 20, 2019

Tips and Tricks: Ray Tracing Best Practices

This post presents best practices for implementing ray tracing in games and other real-time graphics applications. We present these as briefly as possible to...
14 MIN READ
Nov 19, 2018

Parallel Shader Compilation for Ray Tracing Pipeline States

In ray tracing, a single pipeline state object (PSO) can contain any number of shaders. This number can grow large, depending on scene content and ray types...
3 MIN READ
Oct 29, 2018

Effectively Integrating RTX Ray Tracing into a Real-Time Rendering Engine

RTX is NVIDIA's new platform for hybrid rendering, allowing the combination of rasterization and compute-based techniques with hardware-accelerated ray tracing...
21 MIN READ
Oct 23, 2018

Video Series: Practical Real-Time Ray Tracing With RTX

RTX introduces an exciting and fundamental shift in the way lighting systems work in games and applications. In this video series, NVIDIA Engineers Martin-Karl...
18 MIN READ
Oct 03, 2018

Fast and Fun: My First Real-Time Ray Tracing Demo

Editor’s note: What happens when a veteran graphics programmer with substantial experience in old-school ray tracing (in other words, offline rendering), gets...
10 MIN READ
Oct 02, 2018

Video Series: Real-Time Ray Tracing for Interactive Global Illumination Workflows in Frostbite

Real-time ray tracing is upon us. Electronic Arts leads the charge in integrating the technology on an engine level. This video series features Sebastien...
5 MIN READ
Aug 13, 2018

Coffee Break: Ray Plus Raster Era Begins

After decades of research, NVIDIA has unearthed the holy grail of video game graphics: real-time ray tracing! This series of videos will explain why you need to...
9 MIN READ
Jun 20, 2018

Coffee Break Series: Ray Tracing in Games with NVIDIA RTX

Ray tracing will soon revolutionize the way video games look. Ray tracing simulates how rays of light hit and bounce off of objects, enabling developers to...
8 MIN READ