Raytracing in WIP - keeps fallback to CPU, kernels still compiling

Serengeti (Rhino WIP)
,
1

In the WIP, my cycles is locked to CPU, no reason why though

image
image973Ă—588 10.7 KB

Rhino 9 SR0 2026-5-12 (Rhino WIP, 9.0.26132.12305, Git hash:master @ e4ca4a25a2667146cdb0b9e48607c637ec745bdb)
License type: Commercial, build 2026-05-12
License details: LAN Zoo Network Node
Expires on: 2026-06-26

Windows 11 (10.0.26100 SR0.0) or greater (Physical RAM: 64GB)
.NET 10.0.8

Computer platform: LAPTOP  - Plugged in [99% battery remaining]

Non-hybrid graphics configuration using DirectX
  Primary display: NVIDIA RTX 3500 Ada Generation Laptop GPU (NVidia) Memory: 12GB, Driver date: 3-15-2026 (M-D-Y). DirectX(11)
    > Integrated accelerated graphics device with 4 adapter port(s)
        - Windows Main Display is laptop's integrated screen or built-in port

Secondary graphics devices.
  Intel(R) UHD Graphics (Intel) Memory: 2GB, Driver date: 1-15-2026 (M-D-Y).
    > Integrated graphics device with 4 adapter port(s)
        - Secondary monitor is laptop's integrated screen or built-in port

DirectX Settings
  Safe mode: Off

OpenBLAS: OpenBLAS 0.3.30 DYNAMIC_ARCH NO_AFFINITY Haswell MAX_THREADS=64.

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
  C:\Program Files\Rhino 9 WIP\Plug-ins\Commands.rhp	"Commands"	9.0.26132.12305
  C:\Program Files\Rhino 9 WIP\Plug-ins\rdk.rhp	"Renderer Development Kit"	
  C:\Program Files\Rhino 9 WIP\Plug-ins\UpdatesAndStatistics\UpdatesAndStatistics.rhp	"UpdatesAndStatistics"	9.0.26132.12305
  C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoRenderCycles.rhp	"Rhino Render"	9.0.26132.12305
  C:\Program Files\Rhino 9 WIP\Plug-ins\rdk_etoui.rhp	"RDK_EtoUI"	9.0.26132.12305
  C:\Program Files\Rhino 9 WIP\Plug-ins\NamedSnapshots.rhp	"Snapshots"	
  C:\Program Files\Rhino 9 WIP\Plug-ins\MeshCommands.rhp	"MeshCommands"	9.0.26132.12305
  C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoCycles.rhp	"RhinoCycles"	9.0.26132.12305
  C:\Program Files\Rhino 9 WIP\Plug-ins\3dxrhino.rhp	"3Dconnexion 3D Mouse"	
  C:\Program Files\Rhino 9 WIP\Plug-ins\Displacement.rhp	"Displacement"	
  C:\Program Files\Rhino 9 WIP\Plug-ins\SectionTools.rhp	"SectionTools"
2

Hej @sonderskovmathias
It might be that the kernel has been updated in the latest WIP, or that you’ve updated your driver - this will spark a recompile, and it can sometimes take a while. But shouldn’t take more than 15-20 minutes, I think :thinking:
-Jakob

3

So solution is to just keep the viewport open while I go to lunch? I’ll keep you updated :popcorn:

4

Hi @sonderskovmathias
If it fails, you can force a recompile here:

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image1426Ă—1134 58 KB

-Jakob