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 angle. The caption in the upper left corner and an axis tripod in the lower left corner of every viewport indicate the current viewing direction, i.e. the orientation of the virtual camera.
Figure 3. The viewport toolbar.
The viewport toolbar is located below the viewports and contains buttons to explicitly activate various navigation input modes. The Maximize Active Viewport button enlarges the current viewport such that it fills the entire main window. Pressing the button a second time restores the original 2x2 viewport layout. The active viewport is marked by a yellow border.
The Zoom Scene Extents button adjusts the zoom level and repositions the viewport camera such that the complete scene becomes fully visible.