Help with strange appearence of model

I’m trying to complete a tutorial of a duck. After a while this happened. Does anyone know why it looks like this? It looks fine on other computers. So weird.

Hello - it’s hard to say without the file, but it looks like bad edges, or a video driver problem - can you please run the SystemInfo command in Rhino and copy/paste the results here, and post the model as well, just in case.


Duck.3dm (640.4 KB)

Could it be the graphic card drivers? They are updated to the newest drivers.
So weird.

Hello- it all looks fine here -

Please run the SystemInfo command in Rhino and copy/paste the results here.


Rhino 6 SR23 2020-2-24 (Rhino 6, 6.23.20055.13111, Git hash:master @ 8106edaa648ba209a8fc587f0f7fcccbaac09169)
License type: Evaluation, build 2020-02-24
License details: Stand-Alone
Expires on: 2020-06-15

Windows 8.1 (Physical RAM: 3.9Gb)
Machine name: DATOR-MARTINA

Non-hybrid graphics.
Primary display and OpenGL: Intel® HD Graphics (Intel) Memory: 2GB, Driver date: 3-11-2014 (M-D-Y). OpenGL Ver: 4.2.0 - Build

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: Intel
Render version: 4.2
Shading Language: 4.20 - Build
Driver Date: 3-11-2014
Driver Version:
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 2090636 KB

Rhino plugins
C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.23.20055.13111
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
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” 6.23.20055.13111
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” 6.23.20055.13111
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.23.20055.13111
C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”

Your video driver is 6 years old, that would be your problem there.

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Thank you so much

Well I don’t know if it’s even going to be possible to update that to a level where it’s going to work, but that would certainly seem to be the issue.

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