Objects vanish and reappear while zooming.
Four point clouds in a .3dm file. (File too large to upload here.)
Open the file in Rhino 9 WIP.
Zoom in and out.
Two of the point clouds “randomly” vanish and re-ppear while zooming in or out.
Repeatable.
Occurs in all viewports including perspective.
Occurs in Wireframe, Shaded and Rendered modes (only modes tested.)
Does not occur in Rhino 8.
I attempted a sequence of viewport captures using ViewportCaptureToClipboard to illustrate what I’m seeing, but not all objects which were visible on the screen were captured.
Sequence of screen captures using Windows snipping tool.
Updated SystemInfo
Rhino 9 SR0 2026-4-14 (Rhino WIP, 9.0.26104.12305, Git hash:master @ 5bd7a4f16954bce589a148ccd941ced83b3638ad)
License type: Commercial, build 2026-04-14
License details: Cloud Zoo
Expires on: 2026-05-29
Windows 11 (10.0.26100 SR0.0) or greater (Physical RAM: 64GB)
.NET 9.0.15
Computer platform: DESKTOP
Standard graphics configuration using DirectX
Primary display: NVIDIA GeForce RTX 2080 Ti (NVidia) Memory: 11GB, Driver date: 3-4-2026 (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” 9.0.26104.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 9 WIP\Plug-ins\UpdatesAndStatistics\UpdatesAndStatistics.rhp “UpdatesAndStatistics” 9.0.26104.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 9.0.26104.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 9.0.26104.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 9 WIP\Plug-ins\MeshCommands.rhp “MeshCommands” 9.0.26104.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles” 9.0.26104.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 9 WIP\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 9 WIP\Plug-ins\Calc.rhp “Calc”
C:\Program Files\Rhino 9 WIP\Plug-ins\SectionTools.rhp “SectionTools”