Visual bug with rotated blocks in 'shaded' viewports?

Hi, I’ve been bugged by a visual glitch in shaded view just recently whereby rotated blocks show differently in the shaded viewport.

Here’s a clip of a clean file where I’ve created a row of boxes.

I make one of those boxes a block and array it. It can be seen at that point that the two rows are identical.

However, I then create a copy of the block and rotate it 180 degrees with the gumball.

It is immediately apparent that the block is visually different, and the effect persists when I array it.

It would appear the problem relates somehow to the gradient that creates the illusion of shading based on angle to the camera, for whatever reason it is inverted or has its centre offset or something, really not sure. I’ve not noticed it before so I’m guessing its an R8 thing.

Any comments appreciated. It’s distracting when I have an array of, say, windows on a facade, and on one wall they show differently, I’m also quite visual and use my layer colours a lot to comprehend what’s going on.

SystemInfo

Rhino 8 SR17 2025-3-7 (Rhino 8, 8.17.25066.07001, Git hash:master @ b14fcd901289f8715631debb308bc919a4988e07)
License type: Educational, build 2025-03-07
License details: Cloud Zoo

Windows 11 (10.0.26100 SR0.0) or greater (Physical RAM: 32GB)
.NET 7.0.20

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

Hybrid graphics configuration.
Primary display: Intel(R) UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 11-16-2022 (M-D-Y).
> Integrated graphics device with 3 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: NVIDIA Quadro P600 (NVidia) Memory: 4GB, Driver date: 7-23-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 560.76
> 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: 7-23-2024
Driver Version: 32.0.15.6076
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 4 GB

Rhino plugins that do not ship with Rhino
C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros\V8\VRayForRhino.rhp “V-Ray for Rhino”
C:\Program Files\Enscape\Enscape.Rhino.Plugin-net48\Enscape.Rhino8.Plugin.dll “Enscape.Rhino8.Plugin” 4.4.0.452
C:\ProgramData\McNeel\Rhinoceros\packages\8.0\LadybugTools\1.38.192\Ladybug.RH.Loader.rhp “Ladybug.RH.Loader” 1.38.192.0

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.17.25066.7001
C:\Users\Dan\AppData\Roaming\McNeel\Rhinoceros\packages\8.0\PanelingTools\2024.8.20.677\PanelingTools.rhp “PanelingTools”
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\RhinoLabsTools.rhp “Rhino Labs Tools”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\MeshTools.rhp “MeshTools”
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.17.25066.7001
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”

Your video drivers are pretty old. I would suggest updating them.

1 Like

Hiya, thanks for the rec, I’ve now done so


But unfortunately I’m still getting it
I also disabled my Ladybug, V-ray and Enscape
I’m guessing this is just me? this isn’t behaviour you see on your machine?

System readout now as follows (note that whilst my p600 has a recent driver, the UHD 630’s most recent release was 2022):

SystemInfo

Rhino 8 SR17 2025-3-7 (Rhino 8, 8.17.25066.07001, Git hash:master @ b14fcd901289f8715631debb308bc919a4988e07)
License type: Educational, build 2025-03-07
License details: Cloud Zoo

Windows 11 (10.0.26100 SR0.0) or greater (Physical RAM: 32GB)
.NET 7.0.20

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

Hybrid graphics configuration.
Primary display: Intel(R) UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 11-16-2022 (M-D-Y).
> Integrated graphics device with 3 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: NVIDIA Quadro P600 (NVidia) Memory: 4GB, Driver date: 3-14-2025 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 572.83
> 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: 3-14-2025
Driver Version: 32.0.15.7283
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 4 GB

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.17.25066.7001
C:\Users\Dan\AppData\Roaming\McNeel\Rhinoceros\packages\8.0\PanelingTools\2024.8.20.677\PanelingTools.rhp “PanelingTools”
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\RhinoRenderCycles.rhp “Rhino Render” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.17.25066.7001
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”

Hi Dan -

This was fixed in Rhino 8.18.
RH-86448 Display: Color artifacts in blocks
-wim

2 Likes

you can also turn on Use advanced GPU lighting in the shading settings - this should fix it

2 Likes

Ah thanks, one of those problems with many possible names and I didn’t see it had already been raised, great it’s been fixed