Rhino 6 - Vray plugin - CPU at 100%


I’m working with a 15MB file, so very small.

While I’m assigning materials (nothing fancy, no huge textures), the CPU constantly is between 80 and 100%.
I’ve purposely bought a very high end workstation to be spared from slow UI’s and files crashing but somehow I’m back to square one.

Can anyone tell me what might be wrong?
Below is the setup…

Rhino 6 SR5 2018-6-4 (Rhino 6, 6.5.18155.13161, Git hash:master @ 0e00e118078ee9a651d609817f672fb0ed8e83bf)
Licence type: Commercial, build 2018-06-04
License details: Cloud Zoo. In use by: Arman Fissette ()

Windows 10.0 SR0.0 or greater (Physical RAM: 64Gb)

Quadro P5000/PCIe/SSE2 (OpenGL ver:4.5.0 NVIDIA 386.01)

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height

Vendor Name: NVIDIA Corporation
Render version: 4.5
Shading Language: 4.50 NVIDIA
Driver Date: 12-2-2017
Driver Version:
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 16 GB

C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands”
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Bongo 2.0 (64-bit)\Rhino6\Bongo.20.rhp “Bongo 2.0”
C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI”
C:\Program Files\Rhino 6\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 6\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles”
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars”
C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros 6\VRayForRhino.rhp “V-Ray for Rhino”
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 6\Plug-ins\import_OBJ.rhp “Import_OBJ”

What is your V-Ray version? The current version is 3.60.02

V-Ray for Rhinoceros 6 3.60.02

Are there old materials from VfR2?

I think not. I’ve only started using Vray with the 3.6 version.

I haven’t imported any (old) materials from online sources either.

Any chance to update gpu drivers? seems a bit old

I updated the GPU driver as you suggested, but the issue still persists.

Best would be to pack the scene and send a report to support()chaosgroup.com