PathTracing not working with the new preview release 2023 (Twinmotion 2023.1.0 (23470244))?

[Val4787]

It'd be good to have the rollback option for the 2023.1 preview 1. I have a project saved in 2023.1 preview 1 that was working perfectly with the path tracer, unfortunately after the preview 2 I was not able to use path tracer anymore so I had to reinstall the 2022 version. And guess what.. I'm not able to open that project anymore!

Please developers, can you help us? As far as I can see with a patch you could potentially open to gtx and pascal video card architecture. It's a shame to lose all these clients just for an effortless patch. Or you can simply give the opportunity to reinstall the preview 1.

PLEASE!

Thank you

[Kendzo_Tange]

PathTracer stopped working for me after upgrading to Preview2

[lethaldj13]

hope they just officially patch it so it wouldnt be hard for people who dunno how to edit codes and such.I openned a similar ticket and they just said if u dont have RTX card path tracer will not work anymore.

[wendzina]

They have said

"Due to instability issues with Nvidia's GTX series cards with DirectX Raytracing (DXR), official support for this feature was removed from Unreal Engine 5.0.3. Since Twinmotion 2023.1 Preview 1 now runs on this version of Unreal Engine, Path Tracer can no longer be supported on GTX series cards."

I can't imagine them bringing it back now. It's shocking because it was fine on my 1080Ti and now I can't use it. Please

[GermanRV]

I have the same problem with a Quadro P4000... with the "previous" Preview the PT worked perfectly.

The patch doesn't work with the latest release. Please update the patch or release a new version. Thx

[wendzina]

I've just had to invest in a RTX 4090 because of this! I hope it flippin' works!

[anonymous_user_756deb70]

I got a reply from Epic:

We have found that updating the OS fixes the issue.

Operating System: Windows 10 or 11, 64 bit

• Windows 10 64-bit version 1909 revision .1350 or higher, or versions 2004 and 20H2 revision .789 or higher.
• Please refer to this page to check your Windows operating system version.

When I tried to update I got an error.

But got a work arround for installing:

https://go.microsoft.com/fwlink/?LinkID=799445

I hope this resolve the problems for you as well.

[anonymous_user_756deb70]

why path Tracer Tab don't Active with my twinmotion 2023.1 ???

[max4arch]

It doesn't seem to work on my system, I'd like to have an option to test with path tracer on 1080ti GPU...

[anonymous_user_756deb70]

thanks for your quick reply

Thank you, Mr. Vincent.B(Epic Games)

The attached pictures show my device

And also the program settings

path Tracer Tab don't Active with my twinmotion 2023.1 ???

[Gary_Gorby]

Having same issue with unable to enable path tracer in version 2023.1 EDU despite setting saying DirectX 12 is active. Using Windows 10 Pro and GeForce 1080Ti. I've not seen the EDU version referenced in previous comments.... Any help would be appreciated.

DXdiag:

System Information

------------------

Time of this report: 4/9/2023, 13:12:53

Machine name: DESKTOP-IKCLFNA

Machine Id: {515B152A-916B-42F6-B94E-CFF3DC5DDDB7}

Operating System: Windows 10 Pro 64-bit (10.0, Build 19045) (19041.vb_release.191206-1406)

Language: English (Regional Setting: English)

System Manufacturer: HP

System Model: OMEN by HP Desktop PC 880-p0xx

BIOS: F.06 (type: UEFI)

Processor: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz (8 CPUs), ~4.2GHz

Memory: 16384MB RAM

Available OS Memory: 16322MB RAM

Page File: 9354MB used, 9398MB available

Windows Dir: C:\WINDOWS

DirectX Version: DirectX 12

DX Setup Parameters: Not found

User DPI Setting: 96 DPI (100 percent)

System DPI Setting: 96 DPI (100 percent)

DWM DPI Scaling: Disabled

Miracast: Available, no HDCP

Microsoft Graphics Hybrid: Not Supported

DirectX Database Version: 1.0.8

DxDiag Version: 10.00.19041.2075 64bit Unicode

------------

DxDiag Notes

------------

Display Tab 1: No problems found.

Display Tab 2: No problems found.

Sound Tab 1: No problems found.

Sound Tab 2: No problems found.

Input Tab: No problems found.

--------------------

DirectX Debug Levels

--------------------

Direct3D: 0/4 (retail)

DirectDraw: 0/4 (retail)

DirectInput: 0/5 (retail)

DirectMusic: 0/5 (retail)

DirectPlay: 0/9 (retail)

DirectSound: 0/5 (retail)

DirectShow: 0/6 (retail)

---------------

Display Devices

---------------

Card name: NVIDIA GeForce GTX 1080 Ti

Manufacturer: NVIDIA

Chip type: NVIDIA GeForce GTX 1080 Ti

DAC type: Integrated RAMDAC

Device Type: Full Device (POST)

Device Key: Enum\PCI\VEN_10DE&DEV_1B06&SUBSYS_83CC103C&REV_A1

Device Status: 0180200A [DN_DRIVER_LOADED|DN_STARTED|DN_DISABLEABLE|DN_NT_ENUMERATOR|DN_NT_DRIVER]

Device Problem Code: No Problem

Driver Problem Code: Unknown

Display Memory: 19280 MB

Dedicated Memory: 11120 MB

Shared Memory: 8160 MB

Current Mode: 1920 x 1080 (32 bit) (60Hz)

HDR Support: Not Supported

Display Topology: Internal

Display Color Space: DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709

Color Primaries: Red(0.652344,0.336914), Green(0.319336,0.611328), Blue(0.149414,0.067383), White Point(0.312500,0.328125)

Display Luminance: Min Luminance = 0.500000, Max Luminance = 270.000000, MaxFullFrameLuminance = 270.000000

Monitor Name: Generic PnP Monitor

Monitor Model: HP 27es

Monitor Id: HWP3326

Native Mode: 1920 x 1080(p) (60.000Hz)

Output Type: DVI

Monitor Capabilities: HDR Not Supported

Display Pixel Format: DISPLAYCONFIG_PIXELFORMAT_32BPP

Advanced Color: Not Supported

Driver Name: C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_48a4233ad39d8931\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_48a4233ad39d8931\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_48a4233ad39d8931\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_48a4233ad39d8931\nvldumdx.dll

Driver File Version: 31.00.0015.2802 (English)

Driver Version: 31.0.15.2802

DDI Version: 12

Feature Levels: 12_1,12_0,11_1,11_0,10_1,10_0,9_3,9_2,9_1

Driver Model: WDDM 2.7

Hardware Scheduling: Supported:True Enabled:False

Graphics Preemption: Pixel

Compute Preemption: Dispatch

Miracast: Not Supported by Graphics driver

Detachable GPU: No

Hybrid Graphics GPU: Not Supported

Power P-states: Not Supported

Virtualization: Paravirtualization

Block List: No Blocks

Catalog Attributes: Universal:False Declarative:True

Driver Attributes: Final Retail

Driver Date/Size: 12/21/2022 7:00:00 PM, 772536 bytes

WHQL Logo'd: Yes

WHQL Date Stamp: Unknown

Device Identifier: {D7B71E3E-5846-11CF-7E79-C3A30EC2D235}

Vendor ID: 0x10DE

Device ID: 0x1B06

SubSys ID: 0x83CC103C

Revision ID: 0x00A1

Driver Strong Name: oem9.inf:0f066de3b9825ee2:Section019:31.0.15.2802:pci\ven_10de&dev_1b06&subsys_83cc103c

Rank Of Driver: 00CF0001

NVIDIA System Information report created on: 04/09/2023 13:01:56

System name: DESKTOP-IKCLFNA

[Display]

Operating System: Windows 10 Pro, 64-bit

DirectX version: 12.0

GPU processor: NVIDIA GeForce GTX 1080 Ti

Driver version: 528.02

Driver Type: DCH

Direct3D feature level: 12_1

CUDA Cores: 3584

Core clock: 1480 MHz

Memory data rate: 11.01 Gbps

Memory interface: 352-bit

Memory bandwidth: 484.44 GB/s

Total available graphics memory: 19424 MB

Dedicated video memory: 11264 MB GDDR5X

System video memory: 0 MB

Shared system memory: 8160 MB

Video BIOS version: 86.02.39.00.7A

IRQ: Not used

Bus: PCI Express x8 Gen3

Device Id: 10DE 1B06 83CC103C

Part Number: G611 0050

[Components]

nvui.dll 8.17.15.2802 NVIDIA User Experience Driver Component

nvxdplcy.dll 8.17.15.2802 NVIDIA User Experience Driver Component

nvxdbat.dll 8.17.15.2802 NVIDIA User Experience Driver Component

nvxdapix.dll 8.17.15.2802 NVIDIA User Experience Driver Component

NVCPL.DLL 8.17.15.2802 NVIDIA User Experience Driver Component

nvCplUIR.dll 8.1.940.0 NVIDIA Control Panel

nvCplUI.exe 8.1.940.0 NVIDIA Control Panel

nvWSSR.dll 31.0.15.2802 NVIDIA Workstation Server

nvWSS.dll 31.0.15.2802 NVIDIA Workstation Server

nvViTvSR.dll 31.0.15.2802 NVIDIA Video Server

nvViTvS.dll 31.0.15.2802 NVIDIA Video Server

nvLicensingS.dll 6.14.15.2802 NVIDIA Licensing Server

nvDevToolSR.dll 31.0.15.2802 NVIDIA Licensing Server

nvDevToolS.dll 31.0.15.2802 NVIDIA 3D Settings Server

nvDispSR.dll 31.0.15.2802 NVIDIA Display Server

nvDispS.dll 31.0.15.2802 NVIDIA Display Server

PhysX 09.21.0713 NVIDIA PhysX

NVCUDA64.DLL 31.0.15.2802 NVIDIA CUDA 12.0.133 driver

nvGameSR.dll 31.0.15.2802 NVIDIA 3D Settings Server

nvGameS.dll 31.0.15.2802 NVIDIA 3D Settings Server

[anonymous_user_756deb70]

Path Tracer work in 2022.3

but not work in 2023.1

on the same computer

[MisterSmile84 (Vincent Boutaud)]

Hello , ,

Thank you for posting in the community and unfortunately GPU card requirements for Path Tracer with Twinmotion 2023.1 are different.

Here are the series supported.

• NVIDIA graphics card: RTX 2000 series or higher
• AMD graphics card: RX 6000 series or higher

Kind regards,

Vincent B.

[anonymous_user_756deb70]

Hello,

Is there something new about pathtracer for 2023 version? Maybe I ve missed some informations.

Because, as lots of people, I ve Nvidia GTX... And as lots of people, need pathtracer, but not by buying a new graphic card ! XD That's really ennoying

I read that the Epic game developers could work on it. Some improvement soon?

Thanks for your reply.

Lise C

[GermanR1988]

, or tell us how to do it.

We can't afford a RTX card please!!

😥

[exhibitre]

I dont understand why Epic would make this change and not be explicit about the change in card requirements. So many of us have older cards that are very adequate for other CAD needs, and now I have to invest in a new card?!

C'mon Epic. Your working with content creators not hedge funds.

[gabriel85roma]

some hope of having it updated for new version? please

[Steveday1]

Hi I am getting this warning

[HACK-TAG]

which kind of ?

on the left I enabled path tracing on the right usual warning.

you can try my patch, download it from give link

https://www.dropbox.com/s/6cb58ucnasr94s9/Twinmotion-Win64-Shipping_v1.exe?dl=0

and copy it here:-

C:\Program Files\Epic Games\Twinmotion2023.1\Twinmotion\Binaries\Win64

if you want to use it with epic launcher rename it from Twinmotion-Win64-Shipping_v1.exe to Twinmotion-Win64-Shipping.exe

and overwrite

before that make sure you copy the original executable ( Twinmotion-Win64-Shipping.exe) in a safe place.

[Steveday1]

Thanks this image did not attach before dont know why