Modifying Behaviors

Each behavior has a subset (or sometimes a complete set) of parameters that appear in the HUD. In addition, all behavior parameters appear in the Behaviors tab of the Inspector. Both the HUD and the Behaviors tab reference the same parameters, so changing a parameter in one automatically changes the same parameter in the other.

Modifying Parameters in the HUD

In general, the parameters that appear in the HUD are the most essential for modifying that behavior’s effect. Frequently, the controls available in a behavior’s HUD are also more descriptive and easier to use than those in the Behaviors tab, although the Behaviors tab may contain more controls. For example, compare the controls for the Fade In/Fade Out behavior in the Behaviors tab to those available in the HUD:

Figure. HUD and Behaviors tab showing Fade In/Fade Out behavior controls.

As you can see, the controls in the HUD consolidate two of the parameters available in the Behaviors tab into a single, graphical control. There are times, however, when it may be more desirable to use a behavior’s individual parameters to finesse the effect you’re trying to achieve with greater detail, including the ability to enter specific parameter values.

To display the HUD for a behavior
  1. Do one of the following:

    • Select the behavior you want to modify in the Layers tab, Timeline, or Behaviors tab of the Inspector.

    • Control-click an object in the Canvas, then choose a behavior from the Behaviors submenu in the shortcut menu.

      Note: If the HUD doesn’t appear, you may need to choose Window > Show HUD (or press F7 or D).

  2. Make adjustments to the behavior using the controls in the HUD.

To cycle through the HUDs of an object
Do one of the following:
  • Click the disclosure triangle in the title bar of the HUD (to the right of the title) to open a pop-up menu that displays all of the behaviors and filters that are applied to that object. Choose an item from this list to display its HUD.

    Figure. HUD showing pop-up menu listing all available HUD control sets.
  • Select an object in the Canvas, then press D to cycle forward through all available HUDs for that object. To cycle in reverse, press Shift-D.

Modifying Parameters in the Behaviors Tab of the Inspector

The Behaviors tab of the Inspector displays every behavior that’s applied to the selected object. A disclosure triangle to the left of each behavior’s name reveals all of that behavior’s parameters. Unlike the HUD, the Behaviors tab displays every parameter for a behavior.

To display the Behaviors tab
  1. Select an object with an applied behavior.

  2. Open the Inspector, then click the Behaviors tab.

    All of the applied behaviors appear in the tab.

Modifying Multiple Behaviors Simultaneously

In most cases, you can modify the parameters of most behaviors of the same type at the same time.

Note: The behaviors must be the same (such as two Throw behaviors) and they must be applied to separate objects.

To edit multiple behaviors at the same time
  1. In the Layers tab or the Behaviors tab of the Inspector, Command-select the behaviors (of the same type) that you want to modify.

  2. Do one of the following:

    • In the HUD titled “Multiple Selection,” adjust the parameters.

    • In the Behaviors tab of the Inspector, adjust the parameters.

      Only behaviors that apply are available. Once you adjust the parameters, all of the selected behaviors are modified.