Material Thumbnail Display Issue

Hi all. Please see attached screenshot. All thumbnail appear very dark. Same for newly added materials as well. Tried a few things but couldn’t fix it. What’s going on? A little bug? Thanks!

Hello - is the current renderer Rhino render? Can you pleasae run SystemInfo in Rhino and post the results?


Hi Pascal,

Yes it is the native Rhino Render. Here is the result:

Rhino 6 SR31 2020-11-10 (Rhino 6, 6.31.20315.17001, Git hash:master @ ff08c426b1ef7d3a1c50a01e5e87220a68a9f815)
License type: Educational, build 2020-11-10
License details: Cloud Zoo. In use by: Arthur Yang ()

Windows 10.0 SR0.0 or greater (Physical RAM: 16Gb)
Machine name: ARCHSTUDIO

Non-hybrid graphics.
Primary display and OpenGL: NVIDIA GeForce GTX 1060 3GB (NVidia) Memory: 3GB, Driver date: 7-5-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 451.67

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: 7-5-2020
Driver Version:
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 3 GB

Rhino plugins
D:\xy236\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.31.20315.17001
D:\xy236\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Users\AAP Student\AppData\Roaming\McNeel\Rhinoceros\6.0\Plug-ins\Fologram for Rhino (468a328b-20d9-494b-b9e1-cbe9f827d3a2)\2020.1.8.0\6\Fologram.IO.Rhino3d.Win.rhp “Fologram for Rhino” 2020.1.8.0
D:\xy236\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”
D:\xy236\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.31.20315.17001
D:\xy236\Rhino 6\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Users\AAP Student\AppData\Roaming\McNeel\Rhinoceros\6.0\Plug-ins\PanelingTools (6caed836-bc06-4ebc-b1fd-e10886a0dc94)\2018.12.17.906\PanelingTools.rhp “PanelingTools”
D:\xy236\Rhino 6\Plug-ins\NamedSnapshots.rhp “Snapshots”
D:\xy236\Rhino 6\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 6.31.20315.17001
D:\xy236\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles” 6.31.20315.17001
D:\xy236\Rhino 6\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 6.31.20315.17001
D:\xy236\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.31.20315.17001
D:\xy236\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
D:\xy236\Rhino 6\Plug-ins\Displacement.rhp “Displacement”
D:\xy236\Rhino 6\Plug-ins\Calc.rhp “Calc”

Hello I guess the first thing I’d try is disabling ‘Fologram for Rhino’ in Options > Plug-ins folder, then close and reopen Rhino - any different?


Hi Pascal.

I unchecked it, and restarted Rhino. Doesn’t seem to fix the issue. It still shows as loaded though, not sure if that matters. Thanks.

hm… that is unexpected, to me anyway. I’ll see what I can find out.

@xy236 - just making sure - did you disable the plug-in with only one Rhino running, then close Rhino and start a new session?


Thanks Pascal. Yes, I doubled checked that’s what I did. Didn’t help. I wonder if it has anything to do with Rhino’s native material library? I might have modified the folders a bit here and there throughout the project. Maybe that messed things up?

The problem persists in a new Rhino file.