Display system, display method, and display apparatus

A display method comprising:

• receiving, by a control device, detection data of a position of a work machine including working equipment and detection data of attitude, of the work machine;
• receiving, by the control device, detection data of a position of a transport vehicle and detection data of attitude, of the transport vehicle;
• wherein the attitude of the transport vehicle is detected by a transport vehicle attitude detection device of the transport vehicle;
• generating, by the control device, a work machine image representing a virtual viewpoint image of the work machine, viewed from a virtual viewpoint outside the work machine, on the basis of the detection data of the position of the work machine and the detection data of the attitude of the work machine;
• generating, by the control device, a transport vehicle image representing a virtual viewpoint image of the transport vehicle viewed from the virtual viewpoint on the basis of the detection data of the position of the transport vehicle and the detection data of the attitude of the transport vehicle;
• generating, by the control device, a combined image in which the work machine image and the transport vehicle image are superimposed;
• and
• causing, by the control device, the combined image to be displayed on a display apparatus present outside the work machine.