I’m using Rhino 8. When I use a display mode with Silhouette or Edges enabled, I get these telegraphing curves in areas where the part is thin. For refernce - the part shown has shallow holes on the back side for potted inserts. These holes seem to be telegraphing through the visible surface. These artifacts disappear if I zoom in on the part, but when I zoom out to get a wider view, they become more prevalent. Is there a depth or tolerance setting for Silhouette or Edges that I can adjust to eliminate this telegraphing?
can you post the .3dm file ? - or a minimal sample file that shows the Issue ?
some guesses:
- update your graphic card driver
- set a custom more dense, more precise render mesh
- check if your part is far from origin
workaround - do a part without the pockets / holes to get the desired rendering / view / picture.
post your _systemInfo if some of the developers are having a look at this topic this might help.
Thank you for the reply and suggestions. The part is located very far from the origin - part of a boat or train. Everything we do has to be in specific coordinates. This way sharing models with other programs, is easier. We import a lot of engineering data with these type of backside details. This issue is exasperated with complex scenes with muliple parts (viewing down the aisle of a train).
I will look into the mesh density.
System Info:
Rhino 8 SR32 2026-6-9 (Rhino 8, 8.32.26160.13001, Git hash:master @ 2804b73b0f4b4feba10cb8b0b07c18fce290de93)
License type: Commercial, build 2026-06-09
License details: Cloud Zoo
Windows 11 (10.0.22631 SR0.0) or greater (Physical RAM: 64GB)
.NET 8.0.14
Computer platform: LAPTOP - Plugged in [99% battery remaining]
Non-hybrid graphics configuration.
Primary display and OpenGL: NVIDIA RTX A4000 Laptop GPU (NVidia) Memory: 8GB, Driver date: 5-10-2026 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 596.52
Integrated accelerated graphics device with 4 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: NVIDIA RTX A4000 Laptop GPU (NVidia) Memory: 8GB, Driver date: 5-10-2026 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 596.52
Integrated accelerated graphics device with 4 adapter port(s)
- Windows Main Display 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: 5-10-2026
Driver Version: 32.0.15.9652
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 8 GB
Rhino plugins that do not ship with Rhino
C:\ProgramData\McNeel\Rhinoceros\8.0\Plug-ins\Datasmith Rhino Exporter (d1fdc795-b334-4933-b680-088119cdc6bb)\DatasmithRhino8.rhp “Datasmith Exporter” 5.7.4.0
Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.32.26160.13001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.32.26160.13001
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.32.26160.13001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.32.26160.13001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.32.26160.13001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.32.26160.13001
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”
C:\Program Files\Rhino 8\Plug-ins\NamedPositions.rhp “Named Position”
SamplePart.3dm (739.5 KB)
Here is a sample part with shallow holes on the back side. Silhouettes are turned on. This also happens when Edges are turned on.
