# "Shadows Only" does not work in Rendered display mode

**URL:** <https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614>\
**Category:** Rhino\
**Tags:** windows\
**Created:** [January 3, 2024, 7:03pm UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614 "2024-01-03T19:03:45Z")\
**Posts on this page:** 14\
**Page:** 1

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**Author:** ![dsaldoff](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/dsaldoff/32/706808_2.png) [@dsaldoff](https://discourse.mcneel.com/u/dsaldoff)\
**Post date:** [January 3, 2024, 7:03pm UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/1 "2024-01-03T19:03:45Z")

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Hi Rhino world!  
I just downloaded Rhino 8 and I’m having some issues with the display modes. In the “Rendered” Display mode the objects will not cast shadows unless the ground plane is visible. Basically, the “Shadows Only” option, that turns the ground plane invisble, doesn’t seem to be working. This bug also affects some custome display mode settings that I’ve created. Does anyone have a fix for this? I’ve included two screen shots of the display setting and their results. The first is from Rhino 7 the second is from Rhino 8.  
Any help would be greatly appreciated.

Cheers,  
David

 ![Correct](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/0/b/e/0bead834cced5d7026bc534ef26de459618d9e5b.jpeg)  
 ![Incorrect](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/4/c/d/4cda745abb0008178870bac9e3700e7673520d1c.jpeg)

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**Author:** ![pascal](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/pascal/32/479395_2.png) [@pascal](https://discourse.mcneel.com/u/pascal)\
**Post date:** [January 3, 2024, 11:00pm UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/4 "2024-01-03T23:00:05Z")

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Hi David - as far as I can see, this does work here in the latest -

![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/4/3/b/43bc7d05547d4496bc3644ae05ac6a8dba783cfa.png)

can you please run SystemInfo in Rhino and copy/paste ther results here?

-Pascal

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<div class="post-metadata">

**Author:** ![dsaldoff](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/dsaldoff/32/706808_2.png) [@dsaldoff](https://discourse.mcneel.com/u/dsaldoff)\
**Post date:** [January 4, 2024, 5:09pm UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/5 "2024-01-04T17:09:55Z")

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Hi Pascal,  
Thank you for the responce.Below is the information you asked for. Let me know if you need something different. Also, for what it’s worth, my UI doesn’t look like yours. How did you get the view tabs on the side of the window?

Cheers,  
David

Rhino 8 SR2 2023-12-12 (Rhino 8, 8.2.23346.13001, Git hash:master @ dbefe46c12cda06610a9ab683a211aa3d16f0030)  
License type: Commercial, build 2023-12-12  
License details: Cloud Zoo

Windows 10 (10.0.19045 SR0.0) or greater (Physical RAM: 32Gb)  
.NET 7.0.0

Computer platform: DESKTOP

Standard graphics configuration.  
Primary display and OpenGL: Intel(R) UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 7-19-2022 (M-D-Y). OpenGL Ver: 4.6.0 - Build 31.0.101.2111  
\> Integrated graphics device with 3 adapter port(s)  
- Windows Main Display attached to adapter port #0

Secondary graphics devices.  
NVIDIA GeForce RTX 2080 Ti (NVidia) Memory: 11GB, Driver date: 6-8-2023 (M-D-Y).  
\> Accelerated graphics device with 4 adapter port(s)  
- Secondary monitor attached to adapter port #0

ATTENTION:  
Desktop is using the slower, less reliable integrated graphics device and probably needs a configuration change.

An accelerated graphics device exists and is attached to a monitor, but it’s not being used by Rhino.

- Recommended: Use Windows’ Display Settings to configure the monitor attached to the NVIDIA GeForce RTX 2080 Ti, to be the “Main Display”.

- Any hardware configuration or cabling changes you make will require that you restart Rhino.

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: Intel  
Render version: 4.6  
Shading Language: 4.60 - Build 31.0.101.2111  
Driver Date: 7-19-2022  
Driver Version: 31.0.101.2111  
Maximum Texture size: 16384 x 16384  
Z-Buffer depth: 24 bits  
Maximum Viewport size: 16384 x 16384  
Total Video Memory: 1 GB

Rhino plugins that do not ship with Rhino  
C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros\V8\VRayForRhino.rhp “V-Ray for Rhino”

Rhino plugins that ship with Rhino  
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.2.23346.13001  
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”   
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.2.23346.13001  
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”   
C:\Program Files\Rhino 8\Plug-ins\rdk\_etoui.rhp “RDK\_EtoUI” 8.2.23346.13001  
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”   
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.2.23346.13001  
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.2.23346.13001  
C:\Program Files\Rhino 8\Plug-ins\RhinoCode\RhinoCodePlugin.rhp “RhinoCodePlugin” 8.2.23346.13001  
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.2.23346.13001  
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”

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<div class="post-metadata">

**Author:** ![pascal](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/pascal/32/479395_2.png) [@pascal](https://discourse.mcneel.com/u/pascal)\
**Post date:** [January 4, 2024, 5:14pm UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/6 "2024-01-04T17:14:42Z")

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> [@dsaldoff](#):
>
> ATTENTION:  
> Desktop is using the slower, less reliable integrated graphics device and probably needs a configuration change.
> 
> An accelerated graphics device exists and is attached to a monitor, but it’s not being used by Rhino.
> 
> - Recommended: Use Windows’ Display Settings to configure the monitor attached to the NVIDIA GeForce RTX 2080 Ti, to be the “Main Display”.
> 
> - Any hardware configuration or cabling changes you make will require that you restart Rhino.

Hi David - I would first update the graphics drivers with the latest from Nvida and Intel.

-Pascal

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<div class="post-metadata">

**Author:** ![dsaldoff](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/dsaldoff/32/706808_2.png) [@dsaldoff](https://discourse.mcneel.com/u/dsaldoff)\
**Post date:** [January 6, 2024, 12:12am UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/7 "2024-01-06T00:12:32Z")

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Hi Pascal,  
Thank you for the suggestions. I’ve updated the drivers for NVIDIA Intel and I’m still having the same issues. Do you have any other suggestions?

Cheers,  
David

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**Author:** ![nathanletwory](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/nathanletwory/32/482880_2.png) [@nathanletwory](https://discourse.mcneel.com/u/nathanletwory)\
**Post date:** [January 6, 2024, 12:16am UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/8 "2024-01-06T00:16:24Z")

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> [@dsaldoff](#):
>
> - Recommended: Use Windows’ Display Settings to configure the monitor attached to the NVIDIA GeForce RTX 2080 Ti, to be the “Main Display”.

Have you tried this suggestion from the SystemInfo output? Once you have done that restart Rhino. Any better?

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**Author:** ![John\_Brock](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/john_brock/32/476283_2.png) [@John\_Brock](https://discourse.mcneel.com/u/John_Brock)\
**Post date:** [January 6, 2024, 12:17am UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/9 "2024-01-06T00:17:57Z")

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This forum post has the details for reconfiguring your Windows display adapters:

> [@Soooo, you bought a laptop with hybrid graphics and rhino doesn't run right. READ THIS](https://discourse.mcneel.com/t/soooo-you-bought-a-laptop-with-hybrid-graphics-and-rhino-doesnt-run-right-read-this/109982):
>
> Hybrid graphics laptops are more and more common if you buy a consumer grade machine. (I recommend buying a mobile workstation for professional modeling but these hybrid machines are quite prevalent in the consumer market, especially for students.) They tend to generate a TON of tech support here because of the way they are set up from the factory. Hybrid systems are built with 2 graphics processors. A low power graphics chip (typically Intel HD or UHD) and a high power graphics card. However…

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<div class="post-metadata">

**Author:** ![dsaldoff](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/dsaldoff/32/706808_2.png) [@dsaldoff](https://discourse.mcneel.com/u/dsaldoff)\
**Post date:** [January 9, 2024, 9:21pm UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/10 "2024-01-09T21:21:26Z")

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Hi Nathan,  
Great suggestion! A few weeks before upgrading we had some work done on the HVAC system our office. They had to move my desk, which I knew about ahead of time, but they must have done something with my computer because one of my monitors was no longer plugged into the card. It didn’t resolve the issue but it’s definitely good to know!

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<div class="post-metadata">

**Author:** ![dsaldoff](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/dsaldoff/32/706808_2.png) [@dsaldoff](https://discourse.mcneel.com/u/dsaldoff)\
**Post date:** [January 9, 2024, 9:27pm UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/11 "2024-01-09T21:27:58Z")

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Hi John,  
Thank you for the response. I followed your steps and everything was already set to “high preformance”.  
Do you have any other suggestions?

Cheers,  
David

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**Author:** ![mary](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/mary/32/764567_2.png) [@mary](https://discourse.mcneel.com/u/mary)\
**Post date:** [January 11, 2024, 1:45am UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/12 "2024-01-11T01:45:09Z")

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I am using a Rhino 8 SR4 2024-1-8 (Rhino 8, 8.4.24008.10001, a couple days old.  
My Laptop has a 4GB NVIDIA GeForce RTX 3050 Ti with embarrassing old drivers.

This is what I see in Rhino 8:

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/9/c/1/9c18782bfec813bfdb296b2e0e804dbdae2b2963.jpeg)  
Also in Properties → Display model → Rendered:  
 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/7/9/0/7900c9da4eba7dd52e90288b5678c61b2ce5a285.png)  
:  
On the same computer, Rhino 7 looks like this:  
 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/3/1/2/312f5b1bb5c7b7891f3a5e3ea84ed0b2a96ced74.jpeg)  
and Rhino 7 options:  
 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/0/6/d/06d7093f162f1a723dbcfb1ba9892464e8c400cd.png)

@dsaldoff Can you post an updated System Info?  
And in Options → PlugIns, can you disable plugins that do not ship with Rhino?  
Vray may be the only one that you have, but an important one to disable while you are having issues.

 ![Plugins that do not Ship](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/e/a/5/ea5dd61314dc95892f182c2e6aaf8b98fea5bfed.png)

Sincerely,  
Mary Ann Fugier

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<div class="post-metadata">

**Author:** ![dsaldoff](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/dsaldoff/32/706808_2.png) [@dsaldoff](https://discourse.mcneel.com/u/dsaldoff)\
**Post date:** [January 11, 2024, 5:15pm UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/13 "2024-01-11T17:15:35Z")

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Hi Mary Ann,  
unchecking the 2 vray Plug-ins Fixed the issue!!! Thank you! Will I need them in the future or can i just leave them unchecked? Also, please find my current System Info Below and let me know any other thoughts you have.

Cheers,  
David

Rhino 8 SR4 2024-1-9 (Rhino 8, 8.4.24009.13521, Git hash:master @ 92a8f2048b418ceab8c8de06a88b7939594e09f2)  
License type: Evaluation, build 2024-01-09  
License details: Cloud Zoo  
Expires on: 2024-04-08

Windows 10 (10.0.19045 SR0.0) or greater (Physical RAM: 32GB)  
.NET 7.0.0

Computer platform: DESKTOP

Standard graphics configuration.  
Primary display and OpenGL: NVIDIA GeForce RTX 2080 Ti (NVidia) Memory: 11GB, Driver date: 12-6-2023 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 546.33  
\> 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  
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: 12-6-2023  
Driver Version: 31.0.15.4633  
Maximum Texture size: 32768 x 32768  
Z-Buffer depth: 24 bits  
Maximum Viewport size: 32768 x 32768  
Total Video Memory: 11 GB

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino  
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.4.24009.13521  
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”   
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.4.24009.13521  
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”   
C:\Program Files\Rhino 8\Plug-ins\rdk\_etoui.rhp “RDK\_EtoUI” 8.4.24009.13521  
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”   
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.4.24009.13521  
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.4.24009.13521  
C:\Program Files\Rhino 8\Plug-ins\RhinoCode\RhinoCodePlugin.rhp “RhinoCodePlugin” 8.4.24009.13521  
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.4.24009.13521  
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”

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<div class="post-metadata">

**Author:** ![dsaldoff](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/dsaldoff/32/706808_2.png) [@dsaldoff](https://discourse.mcneel.com/u/dsaldoff)\
**Post date:** [January 11, 2024, 5:20pm UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/14 "2024-01-11T17:20:38Z")

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Hahaha. I definietly need them checked to use Vray, but turning them off did solve the issue. Please let me know next steps when you get a chance

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**Author:** ![wim](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/wim/32/747482_2.png) [@wim](https://discourse.mcneel.com/u/wim)\
**Post date:** [January 11, 2024, 7:01pm UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/15 "2024-01-11T19:01:30Z")

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Hi -

> [@dsaldoff](#):
>
> Please let me know next steps when you get a chance

As you identified this issue as being related to V-Ray, you’d need to contact Chaos Group for help. Make sure the the version you are running is compatible with Rhino 8.  
-wim

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**Author:** ![maubo](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/maubo/32/636997_2.png) [@maubo](https://discourse.mcneel.com/u/maubo)\
**Post date:** [December 29, 2024, 8:39am UTC](https://discourse.mcneel.com/t/shadows-only-does-not-work-in-rendered-display-mode/172614/16 "2024-12-29T08:39:46Z")

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suggest to use directional light.  
tutorial link ：

[![](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/6/8/a/68a9fae9cc5f854d6c8dec9f14c24f79bb2d79cd.jpeg "Rhino 3D 4.0 - DirectionalLight") ](https://www.youtube.com/watch?v=JS3oFX1n7M0)