# Shaded mode extremely slow

**URL:** <https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216>\
**Category:** Rhino for Windows\
**Created:** [May 7, 2018, 7:24am UTC](https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216 "2018-05-07T07:24:31Z")\
**Posts on this page:** 10\
**Page:** 1

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**Author:** ![chrbjerre](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/chrbjerre/32/356410_2.png) [@chrbjerre](https://discourse.mcneel.com/u/chrbjerre)\
**Post date:** [May 7, 2018, 7:24am UTC](https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216/1 "2018-05-07T07:24:31Z")

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Hi

I have a big problem.

When showing the model in shaded mode - show rendering materials, Rhino 6 slows down extremely. I can not use Rhino at all. The model is not heavy at all, and I have no problem working with the model in Rhino 5. This is really annoying.

Anyone know what to do?

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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:** [May 7, 2018, 7:34am UTC](https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216/2 "2018-05-07T07:34:09Z")

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Please attach the outcome of the Rhino `SystemInfo` command in a reply here.

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**Author:** ![DavidEranen](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/davideranen/32/110551_2.png) [@DavidEranen](https://discourse.mcneel.com/u/DavidEranen)\
**Post date:** [May 7, 2018, 7:49am UTC](https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216/3 "2018-05-07T07:49:31Z")

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Hi @chrbjerre,

What exactly do you mean with “shaded mode - show rendering materials”?

-David

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**Author:** ![chrbjerre](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/chrbjerre/32/356410_2.png) [@chrbjerre](https://discourse.mcneel.com/u/chrbjerre)\
**Post date:** [May 7, 2018, 7:51am UTC](https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216/4 "2018-05-07T07:51:01Z")

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Rhino 6 SR3 2018-3-31 (Rhino 6, 6.3.18090.471, Git hash:master @ b32d93f452fce970e96deb46bfc68b075f06b290)

Windows 10.0 SR0.0 or greater (Physical RAM: 64Gb)

GeForce GT 730/PCIe/SSE2 (OpenGL ver:4.6.0 NVIDIA 391.35)

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: Height

Vendor Name: NVIDIA Corporation  
Render version: 4.6  
Shading Language: 4.60 NVIDIA  
Driver Date: 3-23-2018  
Driver Version: 23.21.13.9135  
Maximum Texture size: 16384 x 16384  
Z-Buffer depth: 24 bits  
Maximum Viewport size: 16384 x 16384  
Total Video Memory: 2 GB

C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands”   
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”   
C:\Program Files\Rhino 6\Plug-ins\rdk\_etoui.rhp “RDK\_EtoUI”   
C:\Program Files\Rhino 6\Plug-ins\rdk\_ui.rhp “Renderer Development Kit UI”   
C:\Program Files\Rhino 6\Plug-ins\NamedSnapshots.rhp “Snapshots”   
C:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles”   
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars”   
C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”   
C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros 6\VRayForRhino.rhp “V-Ray for Rhino”   
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”   
C:\Program Files\Rhino 6\Plug-ins\import\_OBJ.rhp “Import\_OBJ”

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<div class="post-metadata">

**Author:** ![chrbjerre](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/chrbjerre/32/356410_2.png) [@chrbjerre](https://discourse.mcneel.com/u/chrbjerre)\
**Post date:** [May 7, 2018, 7:59am UTC](https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216/5 "2018-05-07T07:59:35Z")

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I choose shaded mode in the viewport. In Rhino options/Shading settings/color&material usage I choose rendering material.

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**Author:** ![chrbjerre](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/chrbjerre/32/356410_2.png) [@chrbjerre](https://discourse.mcneel.com/u/chrbjerre)\
**Post date:** [May 7, 2018, 8:09am UTC](https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216/6 "2018-05-07T08:09:13Z")

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I don’t understand, but now the problem is gone. I can open and work with the files that couldn’t before. And I can’t recreate the problem. I havn’t updated anything, so I don’t understand. But I am happy 🙂

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**Author:** ![ckmok](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/ckmok/32/530215_2.png) [@ckmok](https://discourse.mcneel.com/u/ckmok)\
**Post date:** [November 18, 2018, 6:29am UTC](https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216/7 "2018-11-18T06:29:48Z")

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Hello everybody,  
I have a similar experience in the past two months. Let me explain what I encounter.  
Since Sept 2018, I found that my Rhino 5.0 could not create models larger than 10M. In the past two months, I did not encounter any problems when I initiate my Rhino. When I create lines, surfaces, the files became bigger. The Rhino will be terminated and (no response) would show on the top left hand corner. (See 4A.png) Basically, I did not create a models lager than 10M. I could not nothing but terminate it and restart. I updated my GT 730 driver periodically (See 7A.png). When the program become larger, (no response) happens more occasionally. I then, un-click the “Use accelerated hardware mode” (See 6A.png), then I did not have any problem when I read or create file bigger than 10M.  
I want to active “use accelerated hardware mode”, what should I do??

 ![4A](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/e/e/eea43384d4f585431133fffeab5139fb95ab202e.png) ![6A|690x388] ![6A](https://global.discourse-cdn.com/mcneel/original/3X/2/9/29628d0f9f1010ee5814ef081a2ba0270fb33fb0.png) ![7A](https://global.discourse-cdn.com/mcneel/original/3X/9/9/9964cb3f9249c9384fcaadf0d6570dfab76ec2f6.png) (upload://lSZ0bwaptOcXPftryWbOVFraoxo.png)

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**Author:** ![jesterking](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/jesterking/32/771114_2.png) [@jesterking](https://discourse.mcneel.com/u/jesterking)\
**Post date:** [November 18, 2018, 7:33am UTC](https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216/8 "2018-11-18T07:33:45Z")

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I assume you are on the latest service release of v5, that is v5 service release 14.

> [@ckmok](#):
>
> I updated my GT 730 driver periodically … … I want to active “use accelerated hardware mode”, what should I do??

Perhaps you could try rolling back your driver to one just before you think the problem started. Let us know if that helped or not.

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<div class="post-metadata">

**Author:** ![ckmok](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/ckmok/32/530215_2.png) [@ckmok](https://discourse.mcneel.com/u/ckmok)\
**Post date:** [November 18, 2018, 8:09am UTC](https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216/9 "2018-11-18T08:09:55Z")

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Dear JesterKing  
Thanks for your promote reply. I did not create a system restore point on my computer. Can I roll back?

Yes, I am on the latest service release of V5.

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**Author:** ![jesterking](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/jesterking/32/771114_2.png) [@jesterking](https://discourse.mcneel.com/u/jesterking)\
**Post date:** [November 18, 2018, 8:23am UTC](https://discourse.mcneel.com/t/shaded-mode-extremely-slow/62216/10 "2018-11-18T08:23:17Z")

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Download an earlier driver for your card from [nvidia.com](http://nvidia.com) . Uninstall the current driver, then install the older one. Maybe a good idea to create a system restore point before you start.