Rhino 6 Out of memory


I keep receiving a message that a memory allocation failed whenever I try to use the patch command. Here is my system info:

Rhino 6 SR29 2020-8-25 (Rhino 6, 6.29.20238.11501, Git hash:master @ 06b936ae4e8c289ecccfd6b5ee9bacccc60eded1)
License type: Educational, build 2020-08-25
License details: Cloud Zoo. In use by: Mbonabuca Nithia ()

Windows 10.0 SR0.0 or greater (Physical RAM: 16Gb)
Machine name: DESKTOP-GQ4S2B7

Hybrid graphics system.
Primary display: Intel® UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 6-5-2020 (M-D-Y).
Primary OpenGL: NVIDIA GeForce GTX 1070 (NVidia) Memory: 8GB, Driver date: 1-29-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 442.19

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 1-29-2020
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
C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.29.20238.11501
C:\Program Files\Rhino 6\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 6\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino 6\Plug-ins\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”
C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.29.20238.11501
C:\Program Files\Rhino 6\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 6\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 6\Plug-ins\Alerter.rhp “Alerter”
C:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles” 6.29.20238.11501
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.29.20238.11501
C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”

Does anyone know how I can fix this? Thanks in advance for your help.

What are you trying to patch? With what settings? That is a command where if you go overboard that can happen.

I am trying to patch several curves to create a topographic surface. I am using sample point spacing 1, surface U span 100 and surface V span 100.

Yeah you’re running out of memory because you’re running out of memory. There used to be a limit of 50 spans to prevent this, I suspect as you increase the spans the memory usage goes up exponentially. Try to limit anything else using memory, see if you can ask Windows for more virutal memory, see how far you have to reduce the settings to get it to work, do it in sections, etc.

Alright, I will try that. Thank you!