Direct3D BUG Clipping Plane Display Fades Out

Serengeti (Rhino BETA)
1

Polycurves, each with several thousand points.
Single clipping plane in use.
The clipped display fades as I zoom out, with curves further away becoming fragmented and then vanishing.

Only occurs with Direct3D (Okay with OpenGL)
Only occurs in viewport(s) with clipping plane enabled
Does not occur with polylines are converted to simpler curves (included in example file below.)
Directly related to the magenta line in layer “Position GB”.
Turn layer “Position GB” off and the display is correct.
Turn layer “Position GB” on and the problem returns.

Clipping Plane Bug DC01.3dm (2.7 MB)

image
image1920×957 300 KB

Zoomed in, all curves which should be visible are visible.

image
image2424×1443 269 KB

Zooming out.

image
image1851×1419 136 KB

Zoomed further out:

image
image1270×900 55.3 KB

System Info updated after updating display driver and removing ClippingBox plug-in. Problem still occurs.
Rhino 9 SR0 2026-6-30 (Rhino 9 BETA, 9.0.26181.12303, Git hash:master @ 63db21acdecff631b4b3c30057580aaff9bf8c35)
License type: Commercial, build 2026-06-30
License details: Cloud Zoo
Expires on: 2026-08-14

Windows 11 (10.0.26100 SR0.0) or greater (Physical RAM: 64GB)
.NET 10.0.9

Computer platform: DESKTOP

Standard graphics configuration using DirectX
Primary display: NVIDIA GeForce RTX 2080 Ti (NVidia) Memory: 11GB, Driver date: 6-11-2026 (M-D-Y). DirectX(11)
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port 0

Secondary graphics devices.
None found.

DirectX Settings
Safe mode: Off

OpenBLAS: OpenBLAS 0.3.30 DYNAMIC_ARCH NO_AFFINITY Haswell MAX_THREADS=64.

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 9 WIP\Plug-ins\Commands.rhp “Commands” 9.0.26181.12303
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 9 WIP\Plug-ins\3dxRhino.9.rhp “3DxRhino.9”
C:\Program Files\Rhino 9 WIP\Plug-ins\UpdatesAndStatistics\UpdatesAndStatistics.rhp “UpdatesAndStatistics” 9.0.26181.12303
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 9.0.26181.12303
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 9.0.26181.12303
C:\Users\dcock\AppData\Roaming\McNeel\Rhinoceros\packages\9.0\PanelingTools\2024.8.20.677\PanelingTools.rhp “PanelingTools”
C:\Program Files\Rhino 9 WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 9 WIP\Plug-ins\MeshCommands.rhp “MeshCommands” 9.0.26181.12303
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles” 9.0.26181.12303
C:\Program Files\Rhino 9 WIP\Plug-ins\SectionTools.rhp “SectionTools”
C:\Program Files\Rhino 9 WIP\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 9 WIP\Plug-ins\Calc.rhp “Calc”

2

Update: The problems still occurs when the layer Position GB with the magenta line is turned off, but is not as severe. Also the display driver was updated and plugin ClippingBox was removed with no improvement. SystemInfo in the post above was updated.

This feels like a problem with extents, possibly involving code somewhere which “simplifies” objects for display based on distance from the camera which interacts with the clipping plane code.

3

@stevebaer @wim @Gijs @jeff This needs to be added to the list. It’s repeatable and also occurs on my laptop, SystemInfo below. The laptop was updated to the latest NVIDIA game driver. My desktop, SystemInfo above, has the latest NVDIA studio driver.

Rhino 9 SR0 2026-6-30 (Rhino 9 BETA, 9.0.26181.12303, Git hash:master @ 63db21acdecff631b4b3c30057580aaff9bf8c35)
License type: Commercial, build 2026-06-30
License details: Cloud Zoo
Expires on: 2026-08-14

Windows 11 (10.0.26200 SR0.0) or greater (Physical RAM: 32GB)
.NET 10.0.2

Computer platform: LAPTOP - Plugged in [100% battery remaining]

Hybrid graphics configuration using DirectX
Primary display: NVIDIA GeForce RTX 3070 Ti Laptop GPU (NVidia) Memory: 8GB, Driver date: 7-2-2026 (M-D-Y).
> Integrated accelerated graphics device with 4 adapter port(s)
- Laptop’s primary display device

Secondary graphics devices.
Intel(R) Iris(R) Xe Graphics (Intel) Memory: 1GB, Driver date: 2-22-2023 (M-D-Y).
> Integrated graphics device with 4 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port

DirectX Settings
Safe mode: Off

OpenBLAS: OpenBLAS 0.3.30 DYNAMIC_ARCH NO_AFFINITY Haswell MAX_THREADS=64.

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 9 WIP\Plug-ins\Commands.rhp “Commands” 9.0.26181.12303
C:\Program Files\Rhino 9 WIP\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino 9 WIP\Plug-ins\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 9 WIP\Plug-ins\UpdatesAndStatistics\UpdatesAndStatistics.rhp “UpdatesAndStatistics” 9.0.26181.12303
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 9.0.26181.12303
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 9.0.26181.12303
C:\Program Files\Rhino 9 WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 9 WIP\Plug-ins\MeshCommands.rhp “MeshCommands” 9.0.26181.12303
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles” 9.0.26181.12303
C:\Program Files\Rhino 9 WIP\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 9 WIP\Plug-ins\SectionTools.rhp “SectionTools”
C:\Program Files\Rhino 9 WIP\Plug-ins\3dxRhino.9.rhp “3DxRhino.9”

4

thanks for the report and sample model,

RH-96851 disappearing lines with ClippingPlane in direct3d