Adobe 25510629 User Guide - Page 103

Programming a continuous virtual move with multiple points To produce a continuous move that zigs and zags, follows an arc, or changes zoom direction rather than going straight from point A to point B, add a sequence of pan and zoom points, one at each position where you want the pan or zoom direction to change. The rate of movement is a function of distance over time. It is graduated at the start and end of each leg. Programming multiple moves with pauses To have the framing hold steady for a period of time between two moves, you must set two pan and zoom points for the same position. This type of sequence would look similar to the following: Time A / Position 1 Time B / Position 2 Time C / Position 2 Time D / Position 3 The difference between Time B and Time C is how long the position remains unchanged. Panning and zoom with different aspect ratios If the frame aspect ratio for the session is 16:9 and the frame aspect ratio of the set is 4:3, then the correct Z setting to zoom in just enough to fill the frame laterally is -0.333. At this setting, you can change the Y value from 0.333 to -0.333 without any empty lines appearing at the top or bottom of the visible frame. If the aspect ratio for the session is 4:3 and the aspect ratio for the set is 16:9, no such change is necessary because the vertical dimension of the scene is already scaled to fit the visible frame, and the sides of the scene extend beyond the edge of the frame. These values assume that the scale of the layer plane is 1:1. Viewing a session without virtual camera moves If you programmed pan and zoom points, but want to view the session without panning and zooming, disable the feature by deselecting Enable. Positioning layers and performing virtual camera moves 103