Hi Revit Community, I'm having some issues with the 3d preview missing in Dynamo for Revit 2021. I...

[FacebookGroupMember]

Hi Revit Community, I'm having some issues with the 3d preview missing in Dynamo for Revit 2021. I already tried the Nvidia Control Panel and Windows Graphic settings. I uninstalled Revit, Reset my laptop, I uninstalled all related to Nvidia including Drivers, download driver updates from the Nvidia website, but the 3D preview is still missing. I have DirectX 12, And supposedly I need to have the 10 version, but the Windows site is down and the Github file is giving an error. Is it possible to downgrade the DirectX?.
Could you please give me some feedback or recommendations? Thanks in advance.

[FacebookGroupMember]

Do you have any 3D geometry referenced in your graph in Dynamo?

[FacebookGroupMember]

Tim Halvorson Hi, yes I tried but I only get a preview in Revit, not on the Dynamo interface.

[_Vijay]

in request change this post to dynamo forum.

here some answers for your question from dynamo forum.

https://forum.dynamobim.com/t/background-preview-in-3d/55279/8 

[Caed9]

Hi, I already check the answers on Dynamo. According to Autodesk, the preferred graphics for Autodesk Revit should be "High-performance Envidia Processor". As you can see the Nvidia Control Panel already assigned the Nvidia Graphics card to  Revit, up to the point that I can't even change it because it is grayed out on the Panel. I also did the same on Windows Settings.

The Hardware acceleration is activated.

I already ran all Nvidia updates from their website.

I also removed all Nvidia Drivers in order to Run Revit on the Integrated Graphics Card. Because the Nvidia Control Panel is no letting me change the Revit Settings.

What I haven't tried yet is to download DirectX 10, because the Microsoft Windows site says that the download is no longer available. I currently have DirectX 12, there is another version of DirectX on Github, but the file prompts an error.

I'm just curious, about that DirectX10 install, will it automatically downgrade the DirectX on my laptop, or do I have to manually uninstall the current version(DirectX12). Unfortunately, the .exe file is not available. 

Here is an image with a better resolution.