The other thing - this engine does orthographic projection, which preserves (IIRC) the distance aspect between points without any distortion.
It's a commonly used projection method for when you don't want scaling issues, where the need for measurement accuracy is more important (such as for CAD drawings - which inherited it from the standard technique for 3D model projection from the regular 3-view top/plan/side of pencil/paper drafting).
Most ordinary 3D engines use a true perspective projection, where distance from the view camera (or view plane) is taken into account, which causes objects (and parts of objects) to look smaller as they recede from that plane.
Yes, but that again is not what would make something "not 3D" - orthographic projection is common in 3D graphics and even most game engines support it.
It's a commonly used projection method for when you don't want scaling issues, where the need for measurement accuracy is more important (such as for CAD drawings - which inherited it from the standard technique for 3D model projection from the regular 3-view top/plan/side of pencil/paper drafting).
Most ordinary 3D engines use a true perspective projection, where distance from the view camera (or view plane) is taken into account, which causes objects (and parts of objects) to look smaller as they recede from that plane.