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Unreal Engine 4.22 Preview Adds Support for DirectX Raytracing

AlphaAtlas

AlphaAtlas

[H]ard|Gawd
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Thanks to Fortnite, as well as the many other PC and console titles developed on the platform, Unreal Engine is one of the most widely used game engines on Earth. Epic Games just released a preview build of the engine, and among numerous other features and fixes, this one includes support for real time ray tracing and path tracing. While the feature isn't technically tied to Nvidia RTX, Turing cards are the only ones with driver support for DirectX raytracing at the moment, meaning that developers do need an RTX 2000 series GPU to test out Unreal's raytracing. Additionally, Epic added support for the Oculus Quest and Microsoft Hololens Remote Streaming, though its not clear if using VR and raytracing together is possible yet. Thanks to cageymaru for the tip

-Implemented a low level layer on top of UE DirectX 12 that provides support for DXR and allows creating and using ray tracing shaders (ray generation shaders, hit shaders, etc) to add ray tracing effects... Added high-level ray tracing features: -Rect area lights -Soft shadows -Reflections -Reflected shadows -Ambient occlusion -RTGI (real time global illumination) -Translucency -Clearcoat -IBL -Sky -Texture LOD -Denoiser (Shadows, Reflections, AO) -Path Tracert
 
I was under the impression that all DX12 cards could use DXR even if at only 1 fps.
 
Stoly said:
I was under the impression that all DX12 cards could use DXR even if at only 1 fps.
Click to expand...

Yes. But when you make a game in the Unreal Engine and build it, the engine compiler does all the D3D code writing grunt work for you. Previous to this, it wouldn't use any of the ray tracing code MS added simply because it didn't know it existed. Now, when you enable ray tracing in Unreal and press build it'll create calls to the new ray tracing functions in D3D12.
 
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i wonder how long till they make it part of the engine license you have to release your game exclusively on their store

LOL
 
katanaD said:
i wonder how long till they make it part of the engine license you have to release your game exclusively on their store

LOL
Click to expand...

They wont. That would kill interest in the engine. It makes more financial sense to make deals with studios and publishers for timed exclusives.
 
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