@Bapt2591 Yes, with some restrictions; please see the license file.

@BattleAxeVR I'm not an expert on MegaGeo, but AFAIK normal maps are optional there. The Dragon demo that we showed at CES was all geometry (insane amounts of it), no normal maps.

Next Thursday (Feb. 13) I'll be giving a talk about NTC at Vulkanised 2025. Schedule here: @VulkanAPI

@Smarchevsky No, VXGI has been discontinued.

A wild Portal Companion Cube spotted at the bottom of the Grand Canyon.

TIL that when using DX12 Wave Intrinsics, e.g. WaveReadLaneAt(), from a compute shader, the mapping of thread indices in a 2D group to lanes is apparently implementation-defined. Don't assume that waves are arranged in a row major order. On Intel ARC, they're not.

@voxagonlabs Sounds somewhat similar to how we did it in Q2RTX / Minecraft RTX. See my old blog post about it:

@MZyanide Yes, our code in this repo is MIT licensed. Some shader bits are imported from a branch of the RTXDI SDK and that's under RTX EULA - stored in a different repo.

@khaldsx885 Check out the RTX Remix Showcase Discord server:

@DryChicken4 @metalshark If you look at the NVIDIAGameWorks org repositories on GitHub, you'll find more gaming related open source software. Maybe not as exciting as Remix, but it's there.

@Manic27G Not really, no. Fossilize is a runtime layer that captures things, and ShaderMake is just a little offline tool to precompile shaders and their permutations. Mostly useful for prototype renderers and sample apps.

RT @acmarrs: Remixing "Portal" for RTX at #GTC23 Recording and slides now available on demand (for free): https:/…

@BattleAxeVR You can add the HLSL files to your VS project as "Does not participate in build". Then Intellisense works, and you can click on the output log errors and navigate to errors even without adding the files. Personally I prefer to use Sublime Text for shader editing though.

Reminder: this session starts in 1 hour. During the session, you will be able to ask questions live. Or reach out via Twitter later.

@MZyanide @MartianDays Yes, it's actually real-time. Conceptually similar to the path tracers in Q2RTX, Minecraft RTX, and now Portal RTX / Remix. We're getting more accurate results with each iteration.

@dariosamo Yes. See for some more info, and the Streamline programming guide on GitHub.

5/5. ShaderMake is a new open-source tool for fast batch shader compilation with permutations. Previously part of NVRHI, it's now a standalone tool to be used in more projects like NRD, with more features and better performance.