Solved : Cant Enable RayTracing in UE5 (gtx 1060)(Nvidia Pascal)

Development Rendering
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190

On my 1660GTX (Win 10) works great :slight_smile:

191

There is 2 Files named “UnrealEditor-D3D12RHI.dll”, one in the root of the file, and the other is the exact same file located in the repertory “GTX-RTEMU-543-bin-patch\Engine\Binaries\Win64”, I tried to replace with the two of them, none of them worked, If U can help me, it will be great, thanks

192

hi what is wrong with

C:\Program Files\Epic Games\UE_5.4\Engine\Binaries\Win64\UnrealEditor-D3D12RHI.dll overwrite

The patched control file is in this package

C:\Program Files\Epic Games\UE_5.4Engine\Config\Console.ini overwrite

Its been written in 4 languages could not be clearer!!

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193

Thank U for the reply, I used to do the same procedure since UE5 5.0 and it worked for me everytime, but this time believe me when i said there is no “PATHTRACER” !!! who knows !!! this is why i insist for wich files in wich directory to copy !!! thank you after all ( Jimbohalo10 ) !!!

194

are you using 5.4.4? Cos it didn’t work for me too.

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Yes. In my case (W10 / GTX1660) everything works just fine.

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Can I know, what did u use to test it to be working?

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Here is your answer:

PT_5_4_4
PT_5_4_41182×1030 261 KB

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198

right , but it doesn’t show for me even though I have it enabled in rendering section.

199

Hi man i have a GTX 1080 card and im using UE 5.1.1 do i only have to replace the this file in location ??

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  • Download attached dll and put it in "UE_5.4\Engine\Binaries\Win64". Overwrite or replace the existing file.

  • Download attached ConsoleVariables.ini and put it in “UE_5.4\Engine\Config”

  • Open the Editor and load your project. Go to the Project settings and enable the following settings:

- Use Hardware Ray Tracing when available
- Support Hardware Ray Tracing
- Path Tracing
- SM5
- SM6
- Default RHI  - DirectX 12

Save everything and reload the Editor if needed.

Check if it helped.

UnrealEditor-D3D12RHI.dll (2.2 MB)

ConsoleVariables.ini (10.4 KB)

201

Hi John ,

Is there any UnrealEditor-D3D12RHI.dll file for 5.3.2 Unreal engine. I have windows 10 pro and my Graphics is AORUS GTX 1080 Ti 11G. Direct X 12
I am unable to render Path trace or ray trace. can you please give me solution. In your previous post I saw UnrealEditor-D3D12RHI.dll file and edit and replace script C++ code as you mentioned make two register key .

#define DXR_ALLOW_EMULATED_RAYTRACING 1

#if DXR_ALLOW_EMULATED_RAYTRACING
int32 GAllowEmulatedRayTracing = 1;

UE_LOG(LogD3D12RHI, Log, TEXT(“Ray tracing emulation is now enabled. Use at own risk. D3D12 tier 1.1 check ignored. Tra-La-La!”));
GRHISupportsRayTracing = RHISupportsRayTracing(GMaxRHIShaderPlatform);
GRHISupportsRayTracingShaders = GRHISupportsRayTracing && RHISupportsRayTracingShaders(GMaxRHIShaderPlatform);

But still Path trace not coming in viewport mode. Please help. Thank you

202

Yes.

pt_5_3_2
pt_5_3_21226×913 240 KB

Download the file and follow the instructions I posted above.

DLL for Unreal Engine 5.3.2:

UnrealEditor-D3D12RHI.dll (2.2 MB)

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image
image1579×1285 77.3 KB

My windows 10 21H2 .Is that any issue for this @JohnDow

204

Thank you. It works.

image
image1181×1032 87 KB

Thank you @JohnDow

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Thanks but it did not work on 5.4.4, even on new project that support ray trace. I compared your dll, it’s the same as the github website.

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@imtrobin2 if you followed the instructions and it didn’t help, then there is nothing I can do to help you.

207

thanks for helping, but didn’t work. Not sure what’s the diff.

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@Jimbohalo10 hi, do you have updated DLL for the new Unreal Engine 5.5.0 Preview?

209

No,
LGPU has many problems under 5.5 source and much criticism.
Spent 4 months on this gave up and finished 5.4.4 . raytraced code is a by product .
So leaving til 2025. Will need to be 5.5.1 before considering doing any thing on 5.5
thanks

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