Methods, systems, and apparatus, including medium-encoded computer program products, for controlling a virtual camera in a three dimensional environment displayed on a two dimensional touchscreen display include: presenting on the two dimensional touchscreen display a camera view into the three dimensional environment; receiving input indicating a single touch by a user on the two dimensional touchscreen display, the single touch including a slide across the two dimensional touchscreen display; and updating, in response to the input, the camera view into the three dimensional environment presented on the two dimensional touchscreen display, the updating including rotating the camera view in accordance with a first direction of the input across the two dimensional touchscreen display, and changing a distance of the camera view in accordance with a second direction of the input across the two dimensional touchscreen display.