Adam Marrs
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acmarrs.bsky.social
Adam Marrs
@acmarrs.bsky.social
Graphics and video games. Principal Graphics Engineer at NVIDIA. Computer Science PhD. Thoughts here are my own.
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...
October 21, 2025 at 6:56 PM
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
September 23, 2025 at 2:59 PM
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/...
August 18, 2025 at 9:22 PM
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...
August 18, 2025 at 9:13 PM
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 😄.
April 17, 2025 at 3:39 PM
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...
March 5, 2025 at 7:57 PM
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...
February 11, 2025 at 9:33 PM
Essential learning: intro-to-restir.cwyman.org
November 20, 2024 at 2:22 PM
[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...
October 22, 2024 at 1:30 PM
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.
October 21, 2024 at 4:12 PM