Rhino crashes when adjusting opacity in material 'colour' channel

I keep getting a crash when I try to adjust the opacity of a texture in the colour channel. Usually this would let me blend the texture with the base colour of the material in order to adjust it’s appearance (darken or lighten, change the colour temp slightly

etc).

Steps:
1 - Create a new custom material.
2 - Assign a texture image from my files in the colour channel.
3 - Attempt to change the opacity of the texture by clicking on the button/slider on the right.
4 - Rhino freezes and after a few seconds crashes.

Have tried with different image files - same problem. I’ve tested the other channels and they seem to work fine. But Colour crashes the program every time.

Please post the results of the Rhino command _SystemInfo.

Hi Nathan,

Rhino 8 SR4 2024-2-13 (Rhino 8, 8.4.24044.15001, Git hash:master @ 5d3f86ffffae3c2ed84d21147c008b3907a40a2e)
License type: Evaluation, build 2024-02-13
License details: Stand-Alone
Expires on: 2024-05-04

Windows 11 (10.0.22621 SR0.0) or greater (Physical RAM: 32GB)
.NET 7.0.0

Computer platform: LAPTOP - Unplugged [89% battery remaining] ~208 minutes left

Hybrid graphics configuration.
Primary display: Intel(R) Iris(R) Xe Graphics (Intel) Memory: 1GB, Driver date: 6-15-2023 (M-D-Y).
> Integrated graphics device with 4 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: NVIDIA GeForce RTX 3050 Ti Laptop GPU (NVidia) Memory: 4GB, Driver date: 3-17-2022 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 512.15
> Integrated accelerated graphics device (shares primary device ports)
- Video pass-through to primary display device

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: 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: 3-17-2022
Driver Version: 30.0.15.1215
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” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoCode\RhinoCodePlugin.rhp “RhinoCodePlugin” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.4.24044.15001
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”