Raytraced view being temperamental?

Rendering
,
1

Hey folks,

Not sure if I missed a thread on this somewhere - I notice sometimes once the model starts to get a bit complex the raytraced render just gives up and exports a normal Render view. It still locks up and takes as long as a ray traced capture - but then I have to export the ViewCapture a couple of times before it does it correctly - is there anything I can do to make sure it’s exporting the raytrace?

Arrows
Arrows1418×1276 555 KB

arrows2
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System Info

Rhino 8 SR25 2025-11-10 (Rhino 8, 8.25.25314.11001, Git hash:master @ 305475a429872768e321960d34ed215b72a0da18)
License type: Educational, build 2025-11-10
License details: Cloud Zoo

Windows 11 (10.0.26200 SR0.0) or greater (Physical RAM: 64GB)
.NET 8.0.17

Computer platform: LAPTOP - Plugged in [100% battery remaining]

Hybrid graphics configuration.
Primary display: Intel(R) UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 8-13-2024 (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 GTX 1650 (NVidia) Memory: 4GB, Driver date: 10-9-2025 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 581.57

Integrated accelerated graphics device (shares primary device ports)

  • Video pass-through to primary display device

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: 10-9-2025
Driver Version: 32.0.15.8157
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 4 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” 5.6.1.0

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.25.25314.11001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.25.25314.11001
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.25.25314.11001
C:\Users\Onufr\AppData\Roaming\McNeel\Rhinoceros\packages\8.0\PanelingTools\2024.8.20.677\PanelingTools.rhp “PanelingTools”
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.25.25314.11001
C:\Program Files\Rhino 8\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 8.25.25314.11001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.25.25314.11001
C:\Program Files\Rhino 8\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 8.25.25314.11001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.25.25314.11001
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”

2

Instead of using ViewCapture of a Raytraced view just switch to a light viewport mode like Wireframe and then just render with Rhino Render - it is the same engine as Raytraced.

It will be even better resource wise, since you’ll have only one Cycles engine instance rendering. When you do a ViewCapture (ToFile or ToClipboard) there’ll be two instances, meaning double the memory usage where that is completely unncessary.

3

Oh so it is, that’s nice and easy - did this change at some point, I feel like I remember the result from Rhino Render being wildly different to the raytrace before?

4

There may have been some brief WIP period where the raytraced view wasn’t yet hooked up to the Render output, but that was many moons ago.

5

I have been doing this for a very long time….. :joy:

6

Rhino Render has been powered by Cycles since Rhino 7. In Rhino 6 there was only Raytraced powered by Cycles.

Old habits die hard (: