background
The coordinate systems in Blender and Unity are different, so the X-axis coordinate of the model generated by Blender usually needs to be changed to -90 after being imported into Unity. This article will modify the object properties in Blender to adapt to the coordinates of Unity, so as to avoid the trouble caused by modifying the coordinates of the object in Unity.
process
Create an object (Shift+A), taking the mesh "monkey head" as an example.
Select the object and modify "Object Properties-Transform-Rotate X" to "-90".
Select the object, press Ctrl+A and select "Rotate" in the pop-up menu.
Select the object, modify "Object Properties-Transform-Rotation X" to "90", return the object to the initial position of the view, and no rotation operation will be applied.
Select the object, export it as an FBX file, and set it as follows:
