How to setup a 3D model in 3D space?

To set up a 3D model in 3D space, import it into 3D software (e.g., Blender, Maya) and adjust its core transform properties—position, rotation, and scale—to place it accurately. Position moves the model along X/Y/Z axes, rotation changes its orientation, and scale resizes it relative to the software’s grid or other objects; most tools use visual gizmos (drag-and-drop axes) or numerical inputs for precision. If you’re new, try Blender (free)—its default layout shows transform gizmos on the left, so you can drag axes to move the model and see how it fits in 3D space in real time.