Slow layout


I find that while working in layout with multiple details open it slows down to the point that working is frustrating. I have 2x 2070 and 32gb ram with a i7 6800k cpu. Other friends have better hardware including a 3090 and still have this problem. Would a quadro card work better? Is it possible to make my details freeze so they are not eating into resources? Any advice would be great.


Edit: Im using rhino 7

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Hello - are your files very complex? Where does the problem show, while navigating in a layout, navigating in an active detail (what is the display mode?) , both?


Typically they are complex scenes and I like to use ambient occlusion in my details. Not a good combo I am sure.

Hello - does performance get noticeably better in a layout if the details are all in Shaded mode?


Hi, I have a similar issue.
When a file is open in v6 layout views run smooth,
when I open the very same file with v7, layout views lag, freeze etc.

I’ve been trying out the new version 7 but for now I think I’ll stick to v6.
Any perspectives on fixing the new release soon? It seems promising!

I have similar issues with 7, non responsive, freeze, crash. Takes at least a minute to gather and open Maxwell materials. Went back to r5 and no issues.

Hello -

Please run the SystemInfo command in Rhino and copy/paste the results here.
If you disable Maxwell in Options > Plug-ins page and then close and reopen Rhino - does the lag still occur?



Turning off Maxwell 5 in Rhino 7 does solve the issue. Opening an existing file is a two-step process though. First it will open the file successfully then it will go out and try to find the textures but the path (s) aren’t correct, so it’s double the time to open. This doesn’t happen in v5. I haven’t been able to point to the correct texture folder. Let me know where I can do that in options.

So even though the textures aren’t found when opening I can raytrace the viewport and render with cycles correctly.

Turning Maxwell back on and moved some objects around I get the spinning wheel non-response so looks like Maxwell is the issue.

I wouldn’t mind ditching Maxwell but I do have quite a few custom textures built. Can Kyle do a Maxwell to Cycles tutorial?


Rhino 7 SR7 2021-6-9 (Rhino 7, 7.7.21160.05001, Git hash:master @ d2161989109d5dacba531310b5d345ce6f4da9f6)

License type: Commercial, build 2021-06-09

License details: Cloud Zoo

Windows 10.0.19042 SR0.0 or greater (Physical RAM: 32Gb)

Computer platform: DESKTOP

Standard graphics configuration.

Primary display and OpenGL: NVIDIA GeForce GTX 1080 (NVidia) Memory: 8GB, Driver date: 9-30-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 456.71

Accelerated graphics device with 4 adapter port(s)

  • Windows Main Display attached to adapter port #0

  • Secondary monitor attached to adapter port #1

  • Secondary monitor attached to adapter port #2

  • Secondary monitor attached to adapter port #3

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: 9-30-2020

Driver Version:

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:\Users\rand\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\AMDDenoiser\0.5.2\AMDDenoiser.Windows.rhp “AMDDenoiser.Windows”

C:\Users\rand\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\NVIDIADenoiser\0.4.1\NVIDIADenoiser.Windows.rhp “NVIDIADenoiser.Windows”

Rhino plugins that ship with Rhino

C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.7.21160.5001

C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”

C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.7.21160.5001

C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.7.21160.5001

C:\Program Files\Rhino 7\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”

C:\Program Files\Rhino 7\Plug-ins\NamedSnapshots.rhp “Snapshots”

C:\Program Files\Rhino 7\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.7.21160.5001

C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.7.21160.5001

C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”

C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”

Hello - I think the first thing to do is contact NextLimit and see what they have to say.


Sent a note to Fernando at Next LImit