OVITO's main window contains four viewports, which are laid out in a 2 by 2 grid. Each viewport shows the same three-dimensional scene from a different view. The caption in the upper left corner and the axis tripod in the lower left corner of every viewport indicate the current viewing direction, i.e. the orientation of the virtual camera in space.
Figure 2. The viewport toolbar.
The viewport toolbar is located below the viewports and contains buttons to explicitly activate certain navigation input modes.
The Maximize Active Viewport button enlarges the current viewport such that it fills the entire main window.
Clicking the button a second time restores the original 2x2 layout of viewports. The active viewport is marked by a yellow border.
The Zoom Scene Extents button adjusts the zoom level and repositions the camera of the active viewport such that the complete scene becomes fully visible.