Views
Perspective
Perspective can be turned on or off by clicking on the second icon from the left in that view’s title bar. When perspective is on, PiXELS:3D will show objects “realistically” from that view’s particular point of view. The edges of objects will converge on a central vanishing point and objects closer to the viewer will appear larger than objects farther away. Any view can have perspective either on or off. When modeling, it is usually better to work without perspective in the top, front and right views.
Grid
Click on this icon to show or hide a visible grid in the top, front or right views. The dimensions of the grid can be set in the View Options dialog, or by using the grid size command in the Command Line window (which can be opened by selecting Control > Command).
Zoom In/Out
Use this icon to zoom into or out of a view. To use, click on the icon and drag the mouse up to zoom out or down to zoom in. The distance from the original mouse click controls the speed of the zoom. In the Camera view, zoom moves the Camera forward and back along the line of sight.
Pan
Use this icon to pan around a view. To use, click on the icon and drag the mouse up, down, left or right. The view will move in relation to the mouse. The distance from the original mouse click controls the speed of the pan.
Orbit (camera view only)
Use this icon to orbit the Camera around the interest. To use, click on the icon and drag the mouse up, down, left or right. The Camera will orbit in relation to the mouse. The distance from the original mouse click controls the speed of the orbit.