Lights using "rectangular"

I almost never do lights. However, I’m giving it a try on a project. I’m trying to get the light to project on a panel behind it and flood out from the sides. I assumed The rectangular light might work like an old plugin I had in SU. A rectangle assigned light properties gave a rectangular light with appropriate fall-off.
In the attached image, the vertical panel would through light from the rear on to the wood panel. where I currently have shadow would be light fall off.

Hello - in V7, use an emissive channel in a PBR (Physically based) material for this.


Pascal, thanks, but I don know what any of that means. Further, Rhino Version 7 SR6
(7.6.21127.19001, 2021-05-07) is crashing so much I’m abandoning this for the time being. No version of Rhino I’ve had has ever crashed this much. I just lost a bunch of work. Am I wrong, doesn’t Rhino have “recovery” for crashed files like AutoCad does? I’ve go no message like that when I restart RH7. Can’t worry about this now. Back to Sketchup.

Hello - are you sending crash reports? Can you please run the SystemInfo command in Rhino and copy/paste the results here?


I sent the first crash report. I was working from a floorplain that was a .dwg export from Vectorworks. I though that might be the root of the problem. Then I got all kinds of other crashes that could not be related to that file. I did not send further reports.

Rhino 7 SR6 2021-5-7 (Rhino 7, 7.6.21127.19001, Git hash:master @ aec74c050f3ca28ab3cfd6882e9453a52366a9b7)
License type: Commercial, build 2021-05-07
License details: Cloud Zoo

Windows 10.0.19042 SR0.0 or greater (Physical RAM: 16Gb)

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce GTX 1060 6GB (NVidia) Memory: 6GB, Driver date: 9-30-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 456.71
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0
- Secondary monitor attached to adapter port #1

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: 9-30-2020
Driver Version:
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\Calyp\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\ColorPicker\6.0.0\ColorPicker.rhp “ColorPicker”

Rhino plugins that ship with Rhino
C:\Program Files\Rhino WIP\Plug-ins\Commands.rhp “Commands” 7.6.21127.19001
C:\Program Files\Rhino WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino WIP\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino WIP\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.6.21127.19001
C:\Program Files\Rhino WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.6.21127.19001
C:\Program Files\Rhino WIP\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.6.21127.19001
C:\Program Files\Rhino WIP\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.6.21127.19001
C:\Program Files\Rhino WIP\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino WIP\Plug-ins\Displacement.rhp “Displacement”
C:\Users\Calyp\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\SectionTools\2020.12.7.446\SectionTools.rhp “SectionTools”

Can you describe what you are doing when the crash happens? Sending in some reports is a good thing - there is atleast a chance we can chase it down.


Hi @CalypsoArt
The Geforce drivers are updated quite frequently, and though September last year doesn’t seem like that long ago, I would advice you to update those drivers. Keeping both your windows installation and graphics drivers up-to-date is - in my experience - time well spent. Rhino 7 demands quite a lot more from the graphics card than R6, and updated drivers seems to help - just my 2 cents.
HTH, Jakob

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