Abstract: To provide an information processing apparatus, an information processing method, and a program for restraining a burden on a user who observes a three-dimensional image. Therefore, a display control unit performs display control to cause a three-dimensional image to be displayed so that a first plane surface parallel to a horizontal plane in a real space is observed in an area based on a distance between a lower end and an upper end of a display surface on which a display unit displays the three-dimensional image and an angle between the horizontal plane and the display surface.

Abstract: Provided is a mask blank substrate being a substrate having two main surfaces, in which one of the two main surfaces of the mask blank substrate on a side on which a transfer pattern is formed has such a surface profile that, when a measurement region of 2.8 mm×2.1 mm of the main surface in a transfer pattern formation region is measured using a white light interferometer under conditions of a pixel number of 640×480, a power spectrum density at a spatial frequency of 1.0×10?2 ?m?1 calculated from a result of the measurement is 6.0×107 nm4 or less.

Abstract: Provided is a mask blank substrate being a substrate having two main surfaces, in which one of the two main surfaces of the mask blank substrate on a side on which a transfer pattern is formed has such a surface profile that, when a measurement region of 2.8 mm×2.1 mm of the main surface in a transfer pattern formation region is measured using a white light interferometer under conditions of a pixel number of 640×480, a power spectrum density at a spatial frequency of 1.0×10?2 ?m?1 calculated from a result of the measurement is 6.0×107 nm4 or less.