Hi Guys, sometimes my raytracing is really quick and sometimes it goes really slow. Its the same model both times with the same layers visible so I’m not sure what’s causing this?
Many thanks
Hello - the number of samples to render does not change? Is lighting the same (skylight for example)?
-Pascal
Hi Pascal. Yes all factors are the same 
Can you post or send us the model, to tech@mcneel.com? Please include a link back to this topic in your comments.
-Pascal
Today raytracing has been faster, the issue now is I can’t view my model in the ‘pen’ view without it crashing I will email over the model.
Hello -
Please run the SystemInfo command in Rhino and copy/paste the results here.
-Pascal
Rhino 7 SR6 2021-5-7 (Rhino 7, 7.6.21127.19001, Git hash:master @ aec74c050f3ca28ab3cfd6882e9453a52366a9b7)
License type: Evaluation, build 2021-05-07
License details: Stand-Alone
Expires on: 2021-08-25
Windows 10.0.19042 SR0.0 or greater (Physical RAM: 16Gb)
Computer platform: LAPTOP - Unplugged [36% battery remaining] ~31 minutes left
Hybrid graphics configuration.
Primary display: Intel(R) UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 10-28-2020 (M-D-Y).
> Integrated graphics device with 3 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: NVIDIA GeForce RTX 2060 (NVidia) Memory: 6GB, Driver date: 3-25-2021 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 465.89
> Integrated accelerated graphics device with 4 adapter port(s)
- Secondary monitor is laptop’s integrated screen or built-in port
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: High
Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 3-25-2021
Driver Version: 27.21.14.6589
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 6 GB
Rhino plugins that do not ship with Rhino
C:\Users\finbl\AppData\Local\Programs\Enscape\Bin64\Enscape.Rhino7.Plugin.dll “Enscape.Rhino7.Plugin” 0.0.21124.1031
C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros\V7\VRayForRhino.rhp “V-Ray for Rhino”
Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.6.21127.19001
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.6.21127.19001
C:\Program Files\Rhino 7\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.6.21127.19001
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” 7.6.21127.19001
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.6.21127.19001
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”
Hello - please disable Vray and Enscape in Options > Plug-ins page then close and reopen Rhino - does that make any difference?
-Pascal
I don’t think it has helped unfortunately. However, I exported the layers of the model I needed to capture in the pen view and it works in a separate file.