Rendered slower in R8

Rhino Rhino for Windows
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1

Hi @Jeff and @dale

I have a simple scene in Rhino 8 that runs 3x slower than in Rhino7.
Do you know what causes that?

The file is simply 6 meshes of 400x400 vertices (160.000 faces)
Each mesh tile is textured with a PNG image that is only 800x800 pixles each.

Each face is 0.5 x 0.5 meter.
Model is moved close to origin.

In R7 I get 36 FPS and
in R8 I get 12 FPS

Using textmaxspeed to measure, turning off shadows doesn’t really affect anything.
Drivers are the latest Studio drivers
Intel 10700
RTX 2070
Windows 11

The model is made by me, data downloaded and geometry generated through my own script, so noting strange casued by importing bad geometry etc.

image
image1920×774 88.7 KB

File is uploaded to you as it is 49MB zipped with textures.

PS! The upload page is a bit strange because we need to add the e-mail to whom we want to send the file, but those emails are not so easy to find. I used dale@mcneel.com so hope that is OK.
It would be good if we could just type in names or use the @dale etc as we do here on the news group.

Hope you find something interesting :slight_smile:
Cheers!

2

Hi @Holo,

I’ve received your test file.

I’ve probably done this elsewhere. But can you post the results of Rhino’s SystemInfo command?

I’ll review it with Jeff and let you know what we find.

Thanks,

– Dale

3

Sure, I’ll supply the system info.
But why are you not collecting the CPU info?
I often see different results on harware where the cpu is an i7 vs Xeon vs some AMD cpus.
Vendor, model, number of cores, actual clockspeed etc is of interest, so I suggest you update SystemInfo to gather that as well.

On my work machine with an i7 8700 and a RTX 4070 Ti:
V7: 90 FPS on an even larger monitor.
V8: 28 FPS.

So a consistent 3X difference on both machines.
PS! I was surpriced to see how much faster it works on this machine, even though I expected a file like this to spin much faster on both systems.

System Info: i7 8700 - RTX 4070 Ti

Rhino 8 SR4 2024-2-13 (Rhino 8, 8.4.24044.15001, Git hash:master @ 5d3f86ffffae3c2ed84d21147c008b3907a40a2e)
License type: Not For Resale Lab, build 2024-02-13
License details: Cloud Zoo

Windows 11 (10.0.22631 SR0.0) or greater (Physical RAM: 32GB)
.NET 7.0.0

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 4070 Ti (NVidia) Memory: 12GB, Driver date: 1-18-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 551.23
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0

Secondary graphics devices.
Intel(R) UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 7-21-2022 (M-D-Y).
> Integrated graphics device with 3 adapter port(s)
- Secondary monitor attached to adapter port #0

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: 1-18-2024
Driver Version: 31.0.15.5123
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 12282 MB

Rhino plugins that do not ship with Rhino
C:\ProgramData\McNeel\Rhinoceros\7.0\Plug-ins\Datasmith Rhino Exporter (d1fdc795-b334-4933-b680-088119cdc6bb)\DatasmithRhino7.rhp “Datasmith Exporter” 5.3.2.0

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoCode\RhinoCodePlugin.rhp “RhinoCodePlugin” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.4.24044.15001
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\Calc.rhp “Calc”
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”

And here is the other machine:

System Info: i7 10700 - RTX 2070

Rhino 7 SR36 2023-12-12 (Rhino 7, 7.36.23346.16351, Git hash:master @ 11a364321297eb8cdb34405a3308d8911f58706d)
License type: Not For Resale Lab, build 2023-12-12
License details: Cloud Zoo

Windows 11 (10.0.22631 SR0.0) or greater (Physical RAM: 32Gb)

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 2070 (NVidia) Memory: 8GB, Driver date: 2-15-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 551.61
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0

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: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 2-15-2024
Driver Version: 31.0.15.5161
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:\Program Files\Rhino 7\Plug-ins\Tibidabo\Lands.rhp “Lands Design”
C:\ProgramData\McNeel\Rhinoceros\7.0\Plug-ins\Datasmith Rhino Exporter (d1fdc795-b334-4933-b680-088119cdc6bb)\DatasmithRhino7.rhp “Datasmith Exporter” 5.3.1.0
C:\Program Files\Rhino 7\Plug-ins\Tibidabo\Tibidabo.rhp “Tibidabo”
C:\Users\mail\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\IntelDenoiser\0.6.0\IntelDenoiser.Windows.rhp “IntelDenoiser.Windows” 0.1.0.0
C:\Users\mail\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\NVIDIADenoiser\0.4.0\NVIDIADenoiser.Windows.rhp “NVIDIADenoiser.Windows” 0.4.0.0

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.36.23346.16351
C:\Program Files\Rhino 7\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.36.23346.16351
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.36.23346.16351
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” 7.36.23346.16351
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.36.23346.16351
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”

1 Like
4

I don’t really understand why CPU isn’t included with _SystemInfo either. I think the impression has always been that Rhino’s CPU activities will run on a potato, but I just am not convinced that’s the case; no matter how single-threaded it is.

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