Creating a Multiplane

One of the most exciting features in Harmony is the multiplane or Z-depth. In the multiplane, you can create backgrounds in several layers, spread them on the Z-axis to add depth, and then move the camera through this environment to create an impressive perspective illusion.

To construct a multiplane, you must imagine what a real environment is like. Take a look at your background picture and imagine a camera moving through the space. Notice that objects in the picture move at different speeds depending on where they are in relation to the camera lens.

Building a multiplane requires an understanding of the scene's background, as well as the positioning of the elements on different layers.

For example, in the background illustrated above, the main objects to be separated are:

  1. Fern
  1. Front tower
  1. Second tower
  1. Moon
  1. Stars
  1. Sky

Although the bottom of the tower is hidden behind the plant and the ladder, each of the multiplane layers should be a complete drawing. This is because hidden portions may show up during a camera move later on in the scene.

You can position layers on the Z-axis using the Side and Top view.

Positioning your element closer to the camera makes them appear bigger. You can also move elements towards the camera or away from the camera while keeping the same size aspect ratio in the Camera view.

It is a good idea to keep a Camera view open to see what your scene looks like while positioning elements in the Top and Side views—see Top View, Side View and Perspective View.

You can see the cumulative Z value information in the Coordinates and Control Points view. When you select a drawing cell that includes a keyframe, it will display the cumulative Z value.

When a layer is parented to other layers that are moved forward or backward on the Z-axis, the currently selected layer's position Z value may not be accurate since its parent will also have an offset on the Z-axis. The Cumulative Z value is a compilation of all the Z-axis offsets to give the real Z-axis offset value related to the (0,0) centre.