Earlier in GDC, folks in our teams shared the latest progress of NvRTX branch of Unreal engine. The presentation is now public online youtube.com/watch?v=so9l... The source code for all the new hair pt work is available in our latest release of NvRTX as well developer.nvidia.com/game-engines...

Our Micropolygon pipeline (MPH) rendering the NVIDIA Zorah demo assets in #Anvil. Zorah is composed of nearly 500 million triangles — but that doesn’t scare us 🙂

Happy to work with a very cool team and contribute to the forest ray tracing project. youtu.be/RgpAc7U29BA Great collaboration with CD Projekt Red. We will open source the Vulkan sample later this year.

This year at GDC, my peers Evan, Kelsey, and Richard will showcase the latest progress in the UE NvRTX branch, including LSS optimized hair strands path tracing, an area I’ve had the privilege to work on over the past couple of months. schedule.gdconf.com/session/stat...

SER and OMM have now officially arrived in DXR 1.2! devblogs.microsoft.com/directx/shad...

Fly through of part of a Keeper level directly in the Unreal Engine editor. Part way through I turn on all of the game objects the player doesn't see -- it takes a lot to make games work.

I'd like to share @daqilin.bsky.social and I co-authored a chapter in the latest GPU Zen 4 book. We cover the engineering details of implementing ReSTIR GI & PT in UE5's NvRTX branch, adopted in NVIDIA's Zorah project showcased at CES and GDC last year. The book is now available on Amazon.

Everything about making video games is harder than you think.

We've made the content and project files for our new Bonsai demo freely available, so you can run it yourself. Download the project, a developer guide, and even a binary executable of the demo here: developer.nvidia.com/game-engines...

Today we released a new demo showcasing RTX Mega Geometry, ReSTIR PT, and DLSS all running together in our NvRTX branch of UE 5.6. www.youtube.com/watch?v=3qyo...

Check out our webinar at 1pm EST / 10am PST Richard, Kelsey, and I will chat about the latest updates to RTX Mega Geometry in NvRTX 5.6 and our upcoming Bonsai showcase. Free for all. Recording available after. Register here: nvda.ws/41BVLQR

Checking out RTX Mega Geometry in NvRTX 5.6? Download our Zorah Sample Content pack and you'll get three scenes (including the scene in this image) made by our Lightspeed Art team specifically for RTX Mega Geometry. Get it here: dlss.download.nvidia.com/demos/zorah/...

Happy Gamescom! We've pushed an update to NvRTX 5.6 that improves performance, adds new debugging features, and brings RTX Mega Geometry to the main branch. Details and instructions on how to access NvRTX: developer.nvidia.com/blog/announc...

It’s really cool to see my talk freely available for everyone. I’m proud of the work our team accomplished, and it means a lot that it’s now accessible to a wider audience. Huge thanks to the GDC team for putting it out there! #AssassinsCreedShadows #GameDevelopment #GDC2025

Wow, the REAC Conference lineup is *stacked* this year! Looking forward to all the talks. enginearchitecture.org/2025.htm

New blog post: developer.nvidia.com/blog/path-tr...

New blog post: developer.nvidia.com/blog/path-tr...

So stoked the Slayer is back! Rip and Tear...until it is done. www.youtube.com/watch?v=uq8s...

A nice, visual introduction to reservoir sampling: samwho.dev/reservoir-sa...

Our #GDC25 talk on Path Tracing Nanite in UE5 is now available on YouTube: youtu.be/8AnVpcIczyk

Our #GDC25 talk on RTX Mega Geometry and how it was used in UE5 and Alan Wake 2 is now available on YouTube: www.youtube.com/watch?v=Kblm...

AC Shadows is a remarkable real-time graphics showcase. The world feels natural, alive, and I regularly find myself stopping to just watch the weather system do its thing. Screenshots don't do it justice, so go play it 😄.

Our #GDC25 talk "Scale Up Ray Tracing in Games with RTX Mega Geometry" is now online, free to watch for all: www.nvidia.com/en-us/on-dem...

Our #GDC25 talk "Path Tracing Nanite in NVIDIA Zorah" is now online, free to watch for all: www.nvidia.com/en-us/on-dem...

"Zorah" is a showcase of our work on RTX Mega Geometry, ReSTIR PT, and more in UE5. Really happy with the results and astonished at the incredible assets our art team built. If you are at GDC, come to our talk "Path Tracing Nanite in Zorah" tomorrow to learn more! www.youtube.com/watch?v=5wbp...

Just 2 weeks until our #GDC25 talk "Path Tracing Nanite in NVIDIA Zorah". I'm excited to talk about how we're ray tracing insanely detailed Nanite geometry in real-time. Add it to your schedule and come say hi: schedule.gdconf.com/session/path...

I'll be back at GDC this year! I'm stoked for our talk: "Path Tracing Nanite in NVIDIA Zorah" with my colleagues Evan Hart and Jiayin Cao. We'll discuss RTX Mega Geometry, ReSTIR PT, and other goodness in our NvRTX branch of UE5 that powers Zorah. Session: schedule.gdconf.com/session/path...

Game engines and shader stuttering: Unreal Engine's solution to the problem www.unrealengine.com/en-US/tech-b...

Thanks to a lot of colleagues' great work, happy to share Vulkan samples for RTX Mega Geometry. They should run on all RTX GPUs using today's new drivers github.com/nvpro-sample... github.com/nvpro-sample... github.com/nvpro-sample... github.com/nvpro-sample...

Our #GDC2024 talk on Real-Time Path Traced Light Transport in UE5 is now available on YouTube: www.youtube.com/watch?v=lxRg...

GPU Zen 3 is out! $3 (Kindle version) is a ridiculously great deal for these interesting articles. a.co/d/1VpahkV

Fantastic talk by @warheart.bsky.social on optimizations and improvements to UE's renderer. Excellent insights and results to learn from! www.youtube.com/watch?v=WGv_...

Essential learning: intro-to-restir.cwyman.org

[March 22, 2022] I'm pleased to share that the RTXGI SDK v1.3.7 repo is now public (no registration required)! It includes full source code and an example implementation (D3D12 and Vulkan) that demonstrates how achieve indirect diffuse lighting with scalable costs. github.com/NVIDIAGameWo...

[Jan 14, 2022] We are all plagued by doubt. Push through it. Believe in yourself - and those around you - and you can achieve incredible things. Success only appears obvious from the outside. Listen to Cory Barlog on the uncertain journey to reinvent God of War. www.youtube.com/watch?v=aIb-...

[August 4, 2021] I am delighted to announce that Ray Tracing Gems II is available *now* and is *free* to download! 7 sections. 50 chapters. 90 authors from across the globe. Download #RTGII here: link.springer.com/book/10.1007...

Over the next few weeks, I'll be going through my Twitter history and posting my favorite graphics content / links here.

Happy to see graphics and engine dev Twitter moving here 😄. I don't post often, but when I do it'll be about computer graphics, gfx programming, and/or video games.