Rhino 6 lagging/freezing when using undo/redo, copy and anything material related


Since upgrading to Rhino 6 I’ve been experiencing lagging and freezing when using various commands. Mainly “redo” and “undo” cause the longest lags along with “copy” and any material scaling or applying materials to the scene with Vray Next.

I’ve experienced it in different files and even small files. I’m working on a brand new PC with an excellent graphics card (Nvidia GeForce RTX 2080 B) so I can’t figure out why it would be running so slowly. The same issues are not happening when running Rhino 5.

Any help would be greatly appreciated as it’s making it impossible to roll out Rhino 6.

Rhino 6 SR21 2019-12-17 (Rhino 6, 6.21.19351.09141, Git hash:master @ 4d373f64ffb55e3a8d607d9618590728d86fb1e9)
License type: Commercial, build 2019-12-17
License details: Cloud Zoo. In use by: Kerstin Thompson Architects ()

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

Non-hybrid graphics.
Primary display and OpenGL: NVIDIA GeForce RTX 2080 (NVidia) Memory: 8GB, Driver date: 1-29-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 442.19

Secondary graphics devices.
Intel® UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 9-25-2019 (M-D-Y).

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

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 1-29-2020
Driver Version:
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 8 GB

Rhino plugins
C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.21.19351.9141
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 6\Plug-ins\RPC.rhp “RPC”
C:\Program Files\Rhino 6\Plug-ins\AnimationTools.rhp “AnimationTools”
C:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”
C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.21.19351.9141
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” 6.21.19351.9141
C:\Users\toreilly\AppData\Local\Programs\Enscape\Bin64\Enscape.Rhino6.Plugin.dll “Enscape.Rhino.Plugin” 0.0.20013.952
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.21.19351.9141
C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros\V6\VRayForRhino.rhp “V-Ray for Rhino”
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”

Can you test for some time with Enscape and V-Ray plug-ins disabled?


Thank you for your speedy reply.

Yes - when I disable V-Ray all works smoothly!
I have V-Ray for Rhino 6 4.10.2 installed on my machine.
Perhaps I will uninstall this version of V-Ray and reinstall version 4.00.02 and see if it works.

Installing the older V-Ray 4. 00 solved the lagging/freezing issue.
Although now I’m having display issues.

If I have Enscape enabled, any material that I create in Vray, displays as transparent in Rendered Mode - like the image I’ve attached, even though these materials do not render transparent and I’ve checked all the parameters inside of the Vray material editor.

Is this a Vray issue? Or is there something I’m needing to turn off or on somewhere in Rhino Options?

Help muchly appreciated.

@Tamsin, I don’t know. If everything works as expected without the plug-ins then I’d contact the developers of V-Ray plug-in and Enscape plug-in to get this sorted.

Yip. Will do. Thanks very much for your help!