How to enable playing of 3D content in PDF?

When you open a PDF with 3D content, you see a yellow bar at the top with the message - "3D content has been disabled. Enable this features if you trust this document."

To enable 3D content in the current document:

Click the Options button and then select an appropriate option:

• Trust this document one time only
  
• Trust this document always
  

To enable 3D content permanently:

• Go to Edit > Preferences > 3D & Multimedia and then select the Enable playing 3D content checkbox.
  

Source:

https://helpx.adobe.com/acrobat/using/displaying-3d-models-pdfs.html

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