Display modes: Ambient color broken?

Rhino
1

Hi,

since my last update the rendered display is much darker than before. I found that the ambient color doesn’t affect the scene anymore. In the past a dark grey added some light effect and no I can set it to white without any effect to the viewport.

Best-
micha

image
image1431×737 205 KB

2

Could it be fixed please?

3

@Micha pls run _SystemInfo and post back the results

4

Rhino 8 SR30 2026-4-13 (Rhino 8, 8.30.26103.11001, Git hash:master @ 3ad61623b0ac4561e2f13265580c56a9f50596d8)
License type: Commercial, build 2026-04-13
License details: Cloud Zoo

Windows 11 (10.0.26100 SR0.0) or greater (Physical RAM: 128GB)
.NET 8.0.22

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 3090 (NVidia) Memory: 24GB, Driver date: 10-9-2025 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 581.57

Accelerated graphics device with 8 adapter port(s)

  • Windows Main Display attached to adapter port #0

Secondary graphics devices.
NVIDIA GeForce RTX 2080 Ti (NVidia) Memory: 11GB, Driver date: 10-9-2025 (M-D-Y).

Accelerated graphics device with 8 adapter port(s)

  • There are no monitors attached to this device!
    NVIDIA GeForce RTX 2080 Ti (NVidia) Memory: 11GB, Driver date: 10-9-2025 (M-D-Y).

Accelerated graphics device with 0 adapter port(s)

  • There are no monitors attached to this device!
    NVIDIA GeForce RTX 3090 (NVidia) Memory: 24GB, Driver date: 10-9-2025 (M-D-Y).

Accelerated graphics device with 0 adapter port(s)

  • There are no monitors attached to this 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: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 10-9-2025
Driver Version: 32.0.15.8157
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 24 GB

Rhino plugins that do not ship with Rhino
C:\Users\Master\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\RPC\0.0.12\RPC.rhp “RPC”
C:\Program Files\Bongo 2.0 (64-bit)\Rhino6\Bongo.20.rhp “Bongo 2.0”
C:\Program Files\Bongo 2.0 (64-bit)\BongoUI.20.v60.rhp “BongoUI20v60”
C:\Program Files\Chaos\V-Ray\V-Ray for Rhinoceros\V8\VRayForRhino.rhp “V-Ray for Rhino”

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.30.26103.11001
C:\Program Files\Rhino 8\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\import_OBJ.rhp “Import_OBJ” 8.30.26103.11001
C:\Program Files\Rhino 8\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”
C:\Program Files\Rhino 8\Plug-ins\AnimationTools.rhp “AnimationTools”
C:\Program Files\Rhino 8\Plug-ins\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.30.26103.11001
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.30.26103.11001
C:\Program Files\Rhino 8\Plug-ins\BlockEdit.rhp “BlockEdit” 8.30.26103.11001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.30.26103.11001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.30.26103.11001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.30.26103.11001
C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 8\Plug-ins\NamedPositions.rhp “Named Position”