Rhino 8 lags after selecting

Rhino
1

Hi all,
I noticed with Rhino 8 a very annoying, frustrating issue that ultimately causes lower productivity. I don’t know if this is particular to my system, but I can’t find anything wrong that would justify it:

  • A great number of times, let’s say well over 50%, when clicking to select an object of any kind, the program lags 1~2 seconds before allowing to do anything else, including view manipulation (rotate, pan, zoom).
  • Selecting one object may generate the lag now, but selecting it later on may not generate the lag.

Needless to say, when you are modeling stuff you end up making hundreds or thousands of selections… it adds up.
I have tried a number of options and configurations in Rhino and in my system to identify the root cause, to no avail. I hope someone can assist.

Rhino 8 SR15 2025-1-19 (Rhino 8, 8.15.25019.13001, Git hash:master @ 74164bdf5469c2f269746857c54b8c44b74c7b24)
License type: Educational, build 2025-01-19
License details: Cloud Zoo

Windows 10 (10.0.19045 SR0.0) or greater (Physical RAM: 64GB)
.NET 7.0.10

Computer platform: DESKTOP 

Standard graphics configuration.
  Primary display and OpenGL: NVIDIA GeForce RTX 4060 Ti (NVidia) Memory: 16GB, Driver date: 12-3-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 566.36
    > Accelerated graphics device with 4 adapter port(s)
        - Windows Main Display attached to adapter port #0

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: 12-3-2024
  Driver Version: 32.0.15.6636
  Maximum Texture size: 32768 x 32768
  Z-Buffer depth: 24 bits
  Maximum Viewport size: 32768 x 32768
  Total Video Memory: 16380 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"	8.15.25019.13001
  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\IdleProcessor.rhp	"IdleProcessor"	
  C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp	"Rhino Render"	8.15.25019.13001
  C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp	"RDK_EtoUI"	8.15.25019.13001
  C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp	"Snapshots"	
  C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp	"MeshCommands"	8.15.25019.13001
  C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp	"RhinoCycles"	8.15.25019.13001
  C:\Program Files\Rhino 8\Plug-ins\Grasshopper\GrasshopperPlugin.rhp	"Grasshopper"	8.15.25019.13001
  C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp	"Toolbars"	8.15.25019.13001
  C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp	"Displacement"	
  C:\Program Files\Rhino 8\Plug-ins\Calc.rhp	"Calc"	
  C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp	"SectionTools"	
  C:\Program Files\Rhino 8\Plug-ins\NamedPositions.rhp	"Named Position"
2

Hi aristocompasso,

Can we try to repeat with your file? Upload large zip files privately here, please put a link to this thread as well. Thanks!

3

Thanks for reporting RH-85982 Aristocompasso, i was able to repeat (although not as consistently as your video)

4

Thanks Japhy,

I can confirm that is has to do with the panels/tabs enabled/visible.
Please note that it’s not only the viewport navigation that is halted. Any operation seems to be halted until the panels are loaded/refreshed.
The lagging occurs when the “Properties” panel is visible and gets worse when the “Box Edit” panel is also showing.

5

RH-85982 is fixed in Rhino 8 Service Release 18 Release Candidate