MegaLights slides were just posted online. There's a bunch of details in slide notes if you're curious how our new Stochastic Direct Lighting solution works, why we made it and want to learn a bit about the problem space.

#SIGGRAPH2025 Advances in Real-Time Rendering in Games course slides for "MegaLights: Stochastic Direct Lighting in Unreal Engine 5” talk by @knarkowicz.bsky.social and @tiagocostav.bsky.social from Epic Games are now online advances.realtimerendering.com/s2025/index....

Thank you @ceruleite.bsky.social for 20 years of organizing the Adavances course. I did learn a lot from it over the years. And also for a really well chosen speaker swag :)

It's time to share the program for the 2025 Advances in Real-time Rendering in Games. Check out all the details here: advances.realtimerendering.com/s2025/index.... and, of course, come attend the course live on Tuesday August 12 at SIGGRAPH in Vancouver!

Amazing talk about Neural Materials. Lots of insight - from why layered materials are important to an overview of current neural solutions and their tradeoffs: youtu.be/xUnXPNFWJUY?...

Another great article from Chips and Cheese. This time about dynamic RDNA4 register allocation. Having full dynamic allocation would be huge for all those complex shaders we write nowadays, but as the article shows it's not easy to get there.

New blog post! "Measuring acceleration structures", in which we will compare BVH costs on various GPU architectures and drivers and attempt to understand the details enough on AMD hardware to make sense of the numbers! Reposts appreciated :) zeux.io/2025/03/31/m...

Interesting to see a bit of details behind the amazing DLSS tech: research.nvidia.com/labs/adlr/DL...

Graphics Programming Conference 2024 talks are up. Looking forward to learning the new Tomasz magic :) www.youtube.com/playlist?lis...

Does anyone know whether DoF is done through path tracing or post in offline movie rendering? I've heard that it's mostly done in post due to performance and extra flexibility, but I wonder whether that's still the case, and whether some shots are rendered (challenging DoF) and some in post.

MegaLights release took me a bit by surprise. It was just a small prototype on a backburner, not planned to be showcased in UE 5.5. Now trying to catch up after the demo push, starting from writing the official docs which just went online: dev.epicgames.com/documentatio...

@demofox.bsky.social Hi, your ST blue noise is amazing, but I can't figure out how to draw N scalar values per pixel for N rays. Tex(screenPos+R2, frameIndex) or similar offsets have correlation artifacts (see img). frac(Tex(screenPos,frameIndex) + Golden ratio*FrameIndex%N) has worse convergence.