Translated by moderator. See below the line for original post
Why can’t the 3D preview of the background be used in Dynamo, and only a 2D grid is displayed? Why can’t the 3D preview of the background be used in Dynamo, and only a 2D grid is displayed?
Original post below
Dynamo中为什么背景三维预览无法使用，只有二维的网格Dynamo中为什么背景三维预览无法使用，只有二维的网格
Welcome to the forum @13673041062.
The official language is English, which sadly is a requirement to make search work or I’d only post in swedish so I could practice.
Please translate future posts as I did in the edit of y our post above.
It may be that your background preview is disabled - check your settings, which should look something like this:
If that is checked off, please provide a screenshot showing what you’re seeing after you place a single Sphere.ByCenterPointRadius node.
