Working with 2D and 3D objects

On Spline, all objects "live" in a 3D space, but we consider 2D objects the ones with Width and Height (but no Depth), which means that they can only resize in the X and Y axes.


2D objects are useful when building User Interfaces. While they don't have a depth by default, you can still extrude these objects to give them volume.

Also, 2D objects can still be moved and rotated in the 3D space on all three axes (X, Y, and Z).

A rectangle and a circle (2D) moving and rotating in the 3D space.

👉 Next Steps

Learn how to convert 2D to 3D.

Extruding 2D objects in 3D