Display issues: flickering / clipping / edge transparency

Rhino
,
1

Please help! I’ve suddenly developed some really annoying and distracting display defects. I’m not sure if this is a SR 22-specific issue, but it happened soon after the update. I may try to roll back to SR 21 soon.

This is also happening on two different computers. The three main issues are

  • Flickering – and disappearing geometry – when moving in the viewport.
  • Clipping of geometry
  • Edge ‘artifacts’ : an x-ray effect along edges when in shaded mode.

The usual suspects are:

  • Running Rhino 8 SR 22 (latest)
  • Using NVIDIA Quadro P5000 with driver 580.97 (latest) also downgraded with no change
  • I have reset the camera / target / location many time (no change)
  • All work is on the origin
  • All geometry is normal size using mm units
  • Nvidia driver set to ‘3D workstation - dynamic streaming’
  • I have tweaked every Rhino setting I can think of!

Video demo

SYSTEM INFO

Rhino 8 SR22 2025-8-5 (Rhino 8, 8.22.25217.12451, Git hash:master @ 96429e6361004c775cd83973f2148f3943b5e512)
License type: Educational, build 2025-08-05
License details: Cloud Zoo

Windows 11 (10.0.26100 SR0.0) or greater (Physical RAM: 32GB)
.NET 8.0.19

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA Quadro P5000 (NVidia) Memory: 16GB, Driver date: 8-7-2025 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 580.97

Accelerated graphics device with 4 adapter port(s)

  • Windows Main Display attached to adapter port 0
  • Secondary monitor attached to adapter port 1

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
GPU Tessellation is: On
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)

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

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 8-7-2025
Driver Version: 32.0.15.8097
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 16 GB

Rhino plugins that do not ship with Rhino
C:\Program Files\Bongo 2.0 (64-bit)\Rhino6\Bongo.20.rhp “Bongo 2.0”
C:\Program Files\Chaos\V-Ray\V-Ray for Rhinoceros\V8\VRayForRhino.rhp “V-Ray for Rhino”
C:\Program Files\Bongo 2.0 (64-bit)\BongoUI.20.v60.rhp “BongoUI20v60”

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.22.25217.12451
C:\Program Files\Rhino 8\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino 8\Plug-ins\AnimationTools.rhp “AnimationTools”
C:\Program Files\Rhino 8\Plug-ins\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.22.25217.12451
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.22.25217.12451
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.22.25217.12451
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.22.25217.12451
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.22.25217.12451
C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 8\Plug-ins\Calc.rhp “Calc”
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”

2

The problem is solved … and it was a new one for me!

I finally noticed that only one file was affected. Then I noticed that the right viewport was corrupted with VERY ODD values, image below. What was WEIRD was that it affected every viewport, which is why I didn’t catch it.

image
image897×792 26.8 KB

The Right view camera ‘X location’ is in another galaxy. This is a corruption.

The four view reset didn’t fix it the numerous times I tried. I had to manually delete the Right view, THEN do the four view reset.

So, one rogue camera x-location value was able to damage ALL four viewports. Who knew?

3

Hi Dave, Just ran into a similar case with imported solidworks objects. Are you importing anything into this file? We would like to understand why this is happening, there safeguards in place that should prevent this. Thanks!

4

Hi @Japhy

No parts were external or imported. I built everyhting from scratch.

There might have been a few things I copied and pasted from another Rhino file, but it was minimal. Both source and destination files were similar sizes and units.

Hey @Japhy

I just had it happen again but caught it. I was using my SpacePilot [3d mouse] to zoom out .. .and BOOM! … the viewport [this time the top] went into another galaxy. Perhaps it was one of those ‘divide by zero’ bugs …?

The same correction tactic was used

  • Delete the affected top view
  • Restore 4-viewports