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Reposted by Chris Wallis

Adam Marrs @acmarrs.bsky.social · 01/10/2026

The first game to Ray Trace Nanite has arrived! Gears of War: E-Day is out now - with super charged ray tracing powered by RTX Mega Geometry. Proud of what we achieved with our friends at The Coalition. www.nvidia.com/en-us/geforc...

nvidia.com

Gears of War: E-Day Out Now With DLSS 4.5

RTX Mega Geometry, ray tracing & 7.5X faster on average at 4K

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Reposted by Chris Wallis

Adam Marrs @acmarrs.bsky.social · 26/08/2026

I’m stoked this is finally revealed! Gears of War: E-Day is a graphics milestone - the world’s first game to ray trace Nanite in real-time, delivered with RTX Mega Geometry. Huge thanks to The Coalition for the vision and collaboration that made this result possible. youtu.be/yeMtCvxBiIM?...

youtu.be

RTX: Inside the Game | Gears of War: E-Day with DLSS 4.5 and RTX Mega Geometry

YouTube video by NVIDIA GeForce

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Reposted by Chris Wallis

Adam Marrs @acmarrs.bsky.social · 26/08/2026

More details, comparison shots, and acceleration structure visualizations of RTX Mega Geometry cranking out real-time Nanite Ray Tracing in Gears of War: E-Day are in the announcement article here: www.nvidia.com/en-us/geforc...

nvidia.com

Gamescom 2026: DLSS 4.5 Ray Reconstruction

Out now for 30 games. Plus RTX Mega Geometry for Gears of War: E-Day, new trailers & more.

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Chris Wallis @chriskwallis.bsky.social · 29/12/2024

Added the ability to watch the rays in my path tracer bounce around as an animation. I'm excited about this more from an education POV, I think it helps explain how path tracing works far more easily than I could describe in words

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Chris Wallis @chriskwallis.bsky.social · 28/12/2024

Iterating on my ray visualizer. Added arrow caps to see ray directionality and UI to tune the ray thickness. I removed the cap on visualizer ray count in the bathroom scene and it gets a little crazy. Green = first bounce Yellow = all other bounces Blue = Next event estimation shadow rays

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Chris Wallis @chriskwallis.bsky.social · 24/12/2024

First prototype of visualizing rays. Fairly simple implementaton: store rays in UAV, then do ray-cylinder intersections in a CS. First bounce is green, second yellow, red for the rest. Shows how dumb my tracer is with very little importance sampling, but it's fun watching the web of rays!

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Chris Wallis @chriskwallis.bsky.social · 21/12/2024

So if I want to visualize the rays I'm firing for a path tracer, how do folks draw the lines for rays? The obvious answer is rasterize the lines, but then you need a raster path that lines up directly with the path traced results Is it crazy to raytrace against the lines in a composition pass?

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Reposted by Chris Wallis

Tomasz Stachowiak @h3r2tic.bsky.social · 05/12/2024

Here's a recording of my Tiny Glade presentation from the Graphics Programming Conference 2024: www.youtube.com/watch?v=jusW... It's an any% speedrun of our GPU-driven rendering, shadows, global illumination, water, and DoF, involving a few weird tricks.

youtube.com

Rendering Tiny Glades With Entirely Too Much Ray Marching

YouTube video by Graphics Programming Conference

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Chris Wallis @chriskwallis.bsky.social · 16/11/2024

Quick and dirty post on implementing hot shader reload with DXC: wallisc.github.io/rendering/20...

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Chris Wallis @chriskwallis.bsky.social · 16/11/2024

Put this off for too long, added hot reload of shaders. Super useful for debugging, using it here to shut off albedo to see indirect lighting in isolation and then preview UVs. Fairly easy to support since everything is done through a single shader and takes less than a second to recompile.

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Chris Wallis @chriskwallis.bsky.social · 14/11/2024

Support for subsurface material editing! I treat glass and subsurface the same. Glass is just subsurface scattering with 0 scattering events.

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Chris Wallis @chriskwallis.bsky.social · 11/11/2024

I've avoided making my path tracer an editor for simplicity sake but recently realized how much easier debugging would be with some limited functionality. So here we go, first prototype of material editing

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Chris Wallis @chriskwallis.bsky.social · 22/10/2024

Hey, I'm Chris! I'm a rendering engineer working on the Gears of War series. Sometimes I post about it, but usually I just talk about my GPU path tracer or ShaderToy Blog of my random graphics stuff here: wallisc.github.io

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