Graphic card help


I find my Rhino slow working with “a bit” bigger files.
Could a friendly soul take a look and see if something is wrong in my settings?

Rhino 6 SR31 2020-11-10 (Rhino 6, 6.31.20315.17001, Git hash:master @ ff08c426b1ef7d3a1c50a01e5e87220a68a9f815)
License type: Commercial, build 2020-11-10
License details: Stand-Alone

Windows 10.0 SR0.0 or greater (Physical RAM: 32Gb)
Machine name: SEL-P1QHL68

Non-hybrid graphics.
Primary display and OpenGL: NVIDIA GeForce RTX 2070 with Max-Q Design (NVidia) Memory: 8GB, Driver date: 4-7-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 442.92

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: 4-7-2020
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\SolidTools.rhp “SolidTools”
C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.31.20315.17001
C:\Program Files\Rhino 6\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 6\Plug-ins\RhinoScript.rhp “RhinoScript”
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\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”
C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.31.20315.17001
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\Alerter.rhp “Alerter”
C:\Program Files\Rhino 6\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 6.31.20315.17001
C:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles” 6.31.20315.17001
C:\Program Files\Rhino 6\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 6.31.20315.17001
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.31.20315.17001
C:\ProgramData\McNeel\Rhinoceros\6.0\Plug-ins\Twinmotion Direct Link 2020.2 (e24ee14a-9514-47da-8fe6-f6e61b20160e)\Twinmotion Direct Link 2020.rhp “Twinmotion Direct Link 2020”
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”

Thanks in advance

Hello - what is slow, exactly?

Do you have a lot of objects with Displacement or Shutlining applied?


Hi Pascal,
Bigger boathulls with any surfaces and each surface containing a big amount of iso curves

What I mean is, can you describe the symptom? Selection slow? Commands sllow? View changes slow? What does slow mean here?


ahh, ok.
Rotating the view and selecting surfaces containing allot of iso curves. Surfaces that are about 100m2 and having 90U & 90V iso curves for example.

Best regards

Hello - does it make a difference if you isolate the surface? I would not think a surface such as what you describe would be slow to select. Can you send us a file?


If I isolate one surface it works smooth again.
I thought it would have to be something with my settings?
I can try to manage a file for you.

perhaps this hull surface is a bad object? … _SelBadObjects
Or the rendermesh is in too high resolution? Use customized settings in the properties.