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4.22 Raytracing with GTX 1080?

hi there, few days ago got the Nividia driver update saying could run Ray tracing with GTX 1080 card, is that working?

I been doing test and nothing happens.

Thanks

Product Version: UE 4.22
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asked Apr 13 '19 at 05:03 PM in Rendering

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Baolong
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Yes, make sure your Windows 10 is updated to October 2018 update which officially added DXR, otherwise RayTracing wont work at all in your system regardless of driver. You can test ray tracing with NVidia tech demo Justice which is not that demanding (it runs pretty well on my 1080Ti, sometimes pretty smooth), if everything goes fine you should have RT option not gray out in beginning, if its gray out then it means you missing something:

https://www.techpowerup.com/download/justice-geforce-rtx-raytracing-tech-demo/

Now on UE4, you will need to run editor with DX12 RHI (UE4 by default runs DX11 RHI), you do this by runnning editor with -dx12 option in command line. Then in project you need to enable Raytracing (just search it with search bar in Project Settings) and restart editor. And thats it, you should immediately see effects of ray tracing in all reflective materials.

Ray Tracing have lot small options allowing to enable/disable individual ray tracing rendering features, in console type in r.Raytracing and console should suggest you all of them.

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answered Apr 13 '19 at 07:14 PM

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Shadowriver
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avatar image Baolong Apr 13 '19 at 10:32 PM

Thanks! it works!

avatar image Mayweather Apr 15 '19 at 05:50 AM

I been trying it today with No luck updated windows 10 & Nvidia update driver turned on the Ray tracing option in project settings Nothing is happening

how did you get it to work with the GTX 1080

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answered Apr 15 '19 at 07:47 AM

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Baolong
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avatar image Mayweather Apr 15 '19 at 07:51 AM

Thanks Baolong This works!

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Hi. I am using the Nvidia Geforce Gtx Titan X video card. Windows version 1809. Nvidia installed update 425.31. I'm working with the Ue4 4.22 version -dx12. But I didn't see any change in ray tracing. I don't know what I have to do, but I hope you can help.

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answered Apr 17 '19 at 12:22 PM

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hidayetcifci
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avatar image Risingtensions Apr 20 '19 at 07:52 PM

I have the exact same issue and I'm also using a TitanX. Surely this card is supported right?

I'm on 1809 and will try to update windows some more. If i find the solution I will let you know. Please do the same.

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Did you change the Project setting ? switch on Ray tracing?

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answered Apr 17 '19 at 08:28 PM

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Baolong
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Yes i opened.

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answered Apr 17 '19 at 10:02 PM

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hidayetcifci
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