Strange behaviours with simple copy objects in Render viewstyle

Hi Again.

recently I’ve been experiencing this veeery strange behaviour in Rhino Rendered Viewstyle.. an unintended trasparency that is radomly assigned to objects and that is impossible to get rid off. .. it only happens in Rendered Viewstyle.. but all the other Viewstyls render correctly the geometry (no transparency)..

ODDITY IN RENDER VIEW.3dm (96.2 KB)

Rhino 8 SR19 2025-4-22 (Rhino 8, 8.19.25112.13001, Git hash:master @ 0fe5f551e3e34ca51834ba0ca2217647d8027942)
License type: Educational, build 2025-04-22
License details: Cloud Zoo

Windows 11 (10.0.26100 SR0.0) or greater (Physical RAM: 31GB)
.NET 7.0.0

Computer platform: LAPTOP - Plugged in [80% battery remaining]

Hybrid graphics configuration.
Primary display: AMD Radeon™ 780M (AMD) Memory: 1GB, Driver date: 6-27-2023 (M-D-Y).
> Integrated accelerated graphics device with 4 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: NVIDIA GeForce RTX 4060 Laptop GPU (NVidia) Memory: 8GB, Driver date: 1-26-2025 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 572.16
> Integrated accelerated graphics device with 4 adapter port(s)
- Video pass-through to primary display device

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: 1-26-2025
Driver Version: 32.0.15.7216
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 8188 MB

Rhino plugins that do not ship with Rhino
C:\Users\mutar\AppData\Roaming\McNeel\Rhinoceros\8.0\Plug-ins\D5LiveSync (e0d5e210-02f6-4ee9-a2b0-1675e225d958)\D5Conv.rhp “D5 Live Sync for Rhino”
C:\Program Files\Common Files\McNeel\Rhinoceros\8.0\Plug-ins\Bella (813de3fb-18eb-405f-bfcd-b0b4d3da91fb)\24.6.4.0\bella_rhino.rhp “Bella” 24.6.4.0
C:\Program Files\Rhino 8\Plug-ins\Tibidabo\Tibidabo.rhp “Tibidabo”
C:\Program Files\Rhino 8\Plug-ins\Tibidabo\VisualARQ.rhp “VisualARQ”

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.19.25112.13001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.19.25112.13001
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.19.25112.13001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.19.25112.13001
C:\Program Files\Rhino 8\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 8.19.25112.13001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.19.25112.13001
C:\Program Files\Rhino 8\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 8.19.25112.13001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.19.25112.13001
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\SectionTools.rhp “SectionTools”

Disable all of these, then restart Rhino and load the file you attached. Do you still have the transparent cube? If not, then re-enable each plug-in in turn, restart Rhino and see if the cube is turning transparent. If it does you know which plug-in it is and you can tell so in a reply.

I have none of these plug-ins, I don’t see a transparent cube when opening your file.

No successs..

I disabled the plugins, restarte rhino.. new file.. and still getting this oddity..

Any other suggestions?

well the mistake seems to be corrected now when I re-enabled the plugins… so the “solution”.. disable and enable again… (only disable was not working)… I’ll post again if I get this oddity

best