Systems and methods are provided for viewing and displaying 3D imagery. In one implementation, a method of displaying 3D imagery comprises receiving layout data comprising data representing a first camera, the first camera being non-editable; generating a first pair of a left camera and a right camera from the layout data based on the first camera, wherein the left camera and the right camera are editable; retrieving, from an external memory, streaming geometry data corresponding to the layout data; and generating the 3D imagery using the first pair of the left camera and the right camera and the streaming geometry data.