Variable Offset Not Working?

Rhino Rhino for Windows
1

Variable offset surface does not work on a simple, not trimmed surface - changing tolerances, rebuilding does not help. Nothing done.

When I flip surface one side seems to have no offset. When I flip again preview is even worse - 2 edges seems like no offset in preview.

Any ideas for solution?

Never experienced this before.

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2

Hi @S_O
Please post the surface. It’s impossible to tell might be wrong from screengrabs.
BR, Jakob

3

The output of your Rhino’s SystemInfo command would probably also be very helpful.

4

Surface.3dm (60.0 KB)

Trying to make such variable offset; both sides.

When flipping something strange happens.

Already found workaround - swap UV, then works fine…

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image626×408 57.9 KB

Rhino 8 SR29 2026-3-4 (Rhino 8, 8.29.26063.11001, Git hash:master @ bbd126f84fcdaf7a974615b7c9f4f8667571c147)
License type: Commercial, build 2026-03-04
License details: Cloud Zoo

Windows 11 (10.0.26200 SR0.0) or greater (Physical RAM: 31GB)
.NET 8.0.14

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

Hybrid graphics configuration.
Primary display: Intel(R) Arc™ Graphics (Intel) Memory: 2GB, Driver date: 1-23-2025 (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 4070 Laptop GPU (NVidia) Memory: 8GB, Driver date: 11-4-2025 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 581.83

Integrated accelerated graphics device with 1 adapter port(s)

  • Secondary monitor is laptop’s integrated screen or built-in port

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: 11-4-2025
Driver Version: 32.0.15.8183
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

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.29.26063.11001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.29.26063.11001
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.29.26063.11001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.29.26063.11001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.29.26063.11001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.29.26063.11001
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”