A virtual-reality computing system, comprising: a near-eye display; a gaze detection machine (1010,1004) configured to determine a wearer's gaze target on the near-eye display; a logic machine; and a storage machine holding instructions executable by the logic machine to: visually present, via the near-eye display, a field of view of a virtual environment from a first perspective; receive a begin-adjustment command; dim, via the near-eye display, a peripheral region of the field of view that surrounds the wearer's gaze target based on the begin-adjustment command; receive a rotation command; rotate a perspective of the virtual environment around a virtual position in the virtual environment from the first perspective to a second perspective based on the rotation command, wherein the virtual position corresponds to the wearer's gaze target when the begin-adjustment command is received, and wherein the rotation command is based on the wearer's gaze target subsequent to the begin-adjustment command; receive an end-adjustment command; brighten, via the near-eye display, the peripheral region of the field of view based on the end-adjustment command; and visually present, via the near-eye display, the field of view of the virtual environment from the second perspective. a near-eye display; a gaze detection machine (1010,1004) configured to determine a wearer's gaze target on the near-eye display; a logic machine; and a storage machine holding instructions executable by the logic machine to: visually present, via the near-eye display, a field of view of a virtual environment from a first perspective; receive a begin-adjustment command; dim, via the near-eye display, a peripheral region of the field of view that surrounds the wearer's gaze target based on the begin-adjustment command; receive a rotation command; rotate a perspective of the virtual environment around a virtual position in the virtual environment from the first perspective to a second perspective based on the rotation command, wherein the virtual position corresponds to the wearer's gaze target when the begin-adjustment command is received, and wherein the rotation command is based on the wearer's gaze target subsequent to the begin-adjustment command; receive an end-adjustment command; brighten, via the near-eye display, the peripheral region of the field of view based on the end-adjustment command; and visually present, via the near-eye display, the field of view of the virtual environment from the second perspective. visually present, via the near-eye display, a field of view of a virtual environment from a first perspective; receive a begin-adjustment command; dim, via the near-eye display, a peripheral region of the field of view that surrounds the wearer's gaze target based on the begin-adjustment command; receive a rotation command; rotate a perspective of the virtual environment around a virtual position in the virtual environment from the first perspective to a second perspective based on the rotation command, wherein the virtual position corresponds to the wearer's gaze target when the begin-adjustment command is received, and wherein the rotation command is based on the wearer's gaze target subsequent to the begin-adjustment command; receive an end-adjustment command; brighten, via the near-eye display, the peripheral region of the field of view based on the end-adjustment command; and visually present, via the near-eye display, the field of view of the virtual environment from the second perspective.