Inside Unreal: DLSS and RTXGI with NVIDIA

[acatalept]

@REC

One more thing guys, the Caustics branch went live today. You can get access to it on our site: https://developer.nvidia.com/unrealengine

You’ll need github developer access, but that’s all. Then you can build the branch yourself. You’ll notice in the documentation on the github page for this one are little demos and example projects for download.

It’s also worth noting that the Caustics branch includes a new improved version of RTGI. If you’re having a difficult time getting access to RTXGI right now, you could go for the new version of RTGI in this branch instead. It does have the advantage of including caustics, improved translucency effects as well, plus all of our other NvRTX branch enhancements for ray tracing. So for many people this might be the branch to get. Good luck! Let me know if you have any questions.

Thanks for this… I’ve been very eager to try mesh caustics since the prism light-splitting technique was first demoed.

However, upon cloning and compiling the NvRTX_Caustics branch, and opening the prism sample map, I get caustics but no color spectrum:

https://i.imgur.com/7QfOMIj.png

I haven’t changed any settings in the project or postprocess volume. I’m using an RTX 2070 with latest drivers (456.55), and UE4 DXR raytracing works fine in other projects.

Any suggestions for settings to check? Has anyone else gotten this to work?