Impossible d'activer le rendu path tracer (ray tracing) en ayant Direct X12

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1

Bonjour,

Je ne parviens pas à activer le rendu Path Tracer (ray tracing).

J’ai pourtant une configuration de PC validant toutes les caractéristiques nécessaires listées sur le site de Twinmotion (voir photo en PJ).

J’ai cette carte graphique : Radeon RX 5700 XT GAMING OC 8Gb

J’ai désinstaller/réinstaller Twin. J’ai redémarrer le PC. J’ai essayé sur la version 22.2.3 et la 23.1 mais ca ne marche pas…

Merci par avance !

Loïc

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2

Hello ,

Unfortunately, your GPU, the AMD Radeon RX 5700 XT does not support Path Tracer. Path Tracer requires a GPU which supports DirectX Raytracing (DXR) in order to utilize hardware accelerated raytracing. From AMD, the only GPUs that support DXR are the AMD Radeon RX 6000 series or newer. From NVIDIA, any of their RTX series GPUs support raytracing. You will need one of these graphics cards if you would like to use Path Tracer.

Best,

Raghib

3

Hello, good afternoon, I have a GTX 1050 graphics card, what version of Twinmotion do I have to use or download for Path Tracin to work for me? (Twinmotion 2023 does not work)

4

Bonjour, j'ai le même problème :

  • Path racer ne fonctionne pas avec 2023.1
  • Path racer fonctionne avec 2022.2.3

CONFIGURATION PC

Windows 10 Professionnel

Directx 12

Processeur Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz 3.70 GHz

Mémoire RAM installée 32,0 Go

Type du système Système d’exploitation 64 bits, processeur x64

Carte vidéo NVIDIA FeFORCE GTX 1070

Que faire ?

5

Hi ,

In Twinmotion 2023.1/Unreal Engine 5.1, Path Tracer support for NVIDIA GTX cards, like your GeForce GTX 1070, was removed due to instability with the Path Tracer enhancements in this version, To use Path Tracer in Twinmotion 2023.1 going forward, you will need to upgrade to a compatible GPU (AMD Radeon RX 6000 series or newer or any NVIDIA RTX GPU).

You can continue using Path Tracer in Twinmotion 2022 with the GTX 1070 as these versions will continue to support Path Tracer on these graphics cards.

Best,

Raghib

6

Ok thank you for your answer .. but that means that I have to change my graphics card? or can i hope that a driver update will suffice?

7

Hi ,

This would require you change your graphics card, since now only graphics cards that support hardware accelerated raytracing can use Path Tracer in newer versions of Twinmotion and Unreal Engine.

Best,

Raghib

8

Hi ,

Unfortunately, the GTX 1050 does not support Path Tracer on any version of Twinmotion as it lacks support for DirectX Raytracing (DXR). For Twinmotion 2022, you need at minimum a GTX 1060, and for Twinmotion 2023 you can use any RTX graphics card.

Best,

Raghib