1. A computer system comprising: one or more processing devices; a computer-readable media having instructions that, when executed by the one or more processing devices, generates an animation application capable of processing an animation environment, wherein the animation environment comprises a virtual camera; an input device for receiving input from a user to the animation application; an output device for displaying output to the user of the animation application; wherein the animation application generates a graphical user interface (GUI) on the output device; and wherein the animation application is configured to have a first mode of operation that includes: displaying, in the GUI on the output display device, a 3D animation view of the animation environment, wherein the 3D animation view comprises: the virtual camera displayed within the animation environment; and a wireframe of a view frustum of the virtual camera displayed within the animation environment, wherein the wireframe of the view frustum shows an outline in the 3D animation view of portions of the 3D animation view that are captured by the virtual camera; and generating a 2D edit view that overlays the 3D animation view and that displays the animation environment from a viewpoint of the virtual camera.