A medical image diagnostic apparatus according to an embodiment includes a setting unit, a rendering unit, and a display controller. The setting unit sets a viewpoint position and a calculation terminal position different from the viewpoint position on an image of a subject. The rendering unit performs rendering processing on, as a target, a range ahead of the calculation terminal position in a direction toward the calculation terminal position from the viewpoint position based on volume data of the subject so as to generate a rendering image. The display controller causes the rendering image to be displayed on a display unit.
