Unpredicted clipping edges in V8

Hi All.

I have such strange double edges while clipping of a single surface with a hole. (V7 has no such issue)

Untrimming the hole solves the issue.

111.3dm (5.4 MB)

One more thing.

If an object has a Name, I was not able to select the name (highlight it with mouse or keyboard) in Properties dialog and delete it by Del keyboard button.
Deleting with BackSpace works.

Hello- I see that, thanks.
RH-75573 ClippingPlane: doubled edge

-Pascal

1 Like

The same problem here. Rather confusing stuff.

Rhino Wnetrze Test.3dm (4.8 MB)

System Info

Rhino 8 SR18 2025-3-11 (Rhino 8, 8.18.25070.14001, Git hash:master @ d450d6adb914b46ae47a91e60cd335723789cf13)
License type: Educational, build 2025-03-11
License details: Cloud Zoo

Windows 11 (10.0.26100 SR0.0) or greater (Physical RAM: 64GB)
.NET 8.0.10

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

Non-hybrid graphics configuration.
Primary display and OpenGL: NVIDIA RTX A3000 12GB Laptop GPU (NVidia) Memory: 11GB, Driver date: 12-11-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 553.50
> Integrated accelerated graphics device with 4 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: NVIDIA RTX A3000 12GB Laptop GPU (NVidia) Memory: 11GB, Driver date: 12-11-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 553.50
> Integrated accelerated graphics device with 4 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port

Secondary graphics devices.
Intel(R) UHD Graphics (Intel) Memory: 2GB, Driver date: 8-19-2024 (M-D-Y).
> Integrated graphics device with 4 adapter port(s)
- Secondary monitor is laptop’s integrated screen or built-in port

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: 12-11-2024
Driver Version: 31.0.15.5350
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 11520 MB

Rhino plugins that do not ship with Rhino
C:\ProgramData\McNeel\Rhinoceros\7.0\Plug-ins\Datasmith Rhino Exporter (d1fdc795-b334-4933-b680-088119cdc6bb)\DatasmithRhino7.rhp “Datasmith Exporter” 5.5.1.0
C:\Program Files\Rhino 8\Plug-ins\Tibidabo\VisualARQ.rhp “VisualARQ”
C:\Users\Czaja\AppData\Roaming\McNeel\Rhinoceros\8.0\Plug-ins\Bella (813de3fb-18eb-405f-bfcd-b0b4d3da91fb)\24.6.2.0\bella_rhino.rhp “Bella” 24.6.2.0
C:\Users\Czaja\AppData\Roaming\McNeel\Rhinoceros\8.0\Plug-ins\BrickDesign (6e4f525d-d830-4e65-86af-b3719fcc4159)\1.2.0.0\BrickDesign\Common\BrickDesign.rhp “BrickDesign” 1.2.0.0
C:\Program Files\Rhino 8\Plug-ins\Tibidabo\Tibidabo.rhp “Tibidabo”
C:\Users\Czaja\AppData\Roaming\McNeel\Rhinoceros\7.0\Plug-ins\Crayon (39629248-4fa6-47b8-83c7-745a7efea259)\1.2.0.0\Crayon\Crayon.rhp “Crayon” 1.0.0.0
C:\Users\Czaja\AppData\Roaming\McNeel\Rhinoceros\packages\8.0\Crash\1.4.2-beta\Crash.rhp “Crash” 1.4.0.0
C:\Users\Czaja\AppData\Roaming\McNeel\Rhinoceros\packages\8.0\Karamba3D\3.1.50129\Karamba3D_LicensePlugin_Rhino7.rhp “Karamba3DLicense”
C:\Users\Czaja\AppData\Roaming\McNeel\Rhinoceros\packages\8.0\SubstanceImporter\2.0.7\Substance.Win.rhp “SubstanceImporter” 2.0.7.0

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.18.25070.14001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.18.25070.14001
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.18.25070.14001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.18.25070.14001
C:\Program Files\Rhino 8\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 8.18.25070.14001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.18.25070.14001
C:\Program Files\Rhino 8\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 8.18.25070.14001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.18.25070.14001
C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 8\Plug-ins\BlockEdit.rhp “BlockEdit” 8.18.25070.14001
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”

unclipped block instance - looks ok

clipped block instance - section surface is bigger than it should be

clipped block instance in edit mode

The same happens in the fron view, so it makes it impossible to create a proper section view of this slab.

Hi Jakub -

The thickness of that slab layer is 0.5 units and your document tolerance is 0.1 units. You should always make sure that the tolerance is at least one order of magnitude tighter than the smallest feature in your scene. Changing the tolerance and refreshing the view clears this up here:

-wim

This was just a test file so I didn’t pay much attention to tolerances, especially in the context of Clipping Planes. Rookie mistake on my side. Thanks Wim.