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Adobe After Effects 5.0- P3: AdobeAfter Effects5.0 provides the core 2D and 3D tools for compositing, animation,and effects that motion-graphics professionals, Web designers, and video professionalsneed. After Effects is widely used for digital post-production of film, motion graphics,video multimedia, and the Web.
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Adobe After Effects 5.0- P3 ADOBE AFTER EFFECTS 5.0 47 Classroom in a BookNow the hexagons quickly become very large as they enter the composition frame. Youwill continue to make adjustments to affect the appearance of their entry in the followingprocedures.Note: The hexagons may appear larger than you expect at this stage. You’ll correct this a littlelater in another procedure so that they look more like the sample movie.When collapsing the transformations in this case, After Effects uses the scale of the sourcefile to display this image rather than calculating the scale based on the reduced size of thehexagon layers in the previous composition (Hexagon Build Pre-comp). TheHexagon01.psd source file is plenty large enough to display the image at this size withoutsacrificing the image quality.Rotating the entire honeycombThe next step is to add a rotation that extends from the beginning (0:00) to the end (3:29)of the composition. You need the rotation keyframes at the same points in time as thescale keyframes you just added. You’ll use some new techniques to simplify your task.1 With the Hexagon 3 Bars Pre-comp layer selected and the Scale property still open,press Shift + R. The Rotation property opens but without replacing the Scale propertydisplay.2 Move the current-time marker to 0:00 if it is not already there, but this time try one ofthe following techniques:• Click the left keyframe navigation arrow for the Scale property to move the current-timemarker to the first Scale keyframe at 0:00. Be careful not to click the check box.Keyframe navigation arrow• Press J.48 LESSON 1 Creating 2D Elements from Hexagons 3 Click the Rotation property stopwatch to set a keyframe with values of 0 x 0˚ (at 0:00). 4 On the Scale property, click the right keyframe navigation arrow to move the current- time marker to the next Scale keyframe at 3:29. Or, press either K or End. 5 Change the Rotation value to 90˚. A second keyframe appears in the Rotation properties. 6 Press J or Home to move the current-time marker back to 0:00. 7 Save your project and then preview the animation. If necessary, lower the resolution of the Composition window to see more frames in the RAM preview. Moving the anchor point Your composition now scales up until the center of the composition fills the frame. The anchor point is the focal point of the zoom and the center of the rotation as it spins. You can shift the target off center by moving the anchor point to add visual interest. (This also creates a nice opportunity for a transition into another scene later in the job.) You won’t set a keyframe for the anchor-point position because you want it to remain at the same coordinates throughout the composition. 1 Move the current-time marker to 3:00. 2 In either the Timeline or Composition window, double-click the Hexagon 3 Bars Pre- comp to open the Layer window. 3 On the Layer window menu, choose Anchor Point Path, if it is not already selected. Crosshairs superimposed on the center of the layer indicate the current position of the anchor point ( ). ADOBE AFTER EFFECTS 5.0 49 Classroom in a Book4 With the layer still selected, press Shift + A to open the layer Anchor Point property inthe Timeline window.5 In the Layer window, drag the anchor point down and to the right to the coordinates550, 295. Use the display in the Info palette as a guide, or you can scrub or type the AnchorPoint values in the Timeline window.Anchor point6 Close the Layer window, save your work, and preview the animation.The layer now rotates around the new anchor point and zooms into the center of thespecified hexagon.50 LESSON 1 Creating 2D Elements from Hexagons Changing position once more As the layer zooms and rotates, it can also move sideways or up and down. By adding a small change in position, you’ll give the overall movement of the layer a more natural flow, keeping it from looking too mechanical. Before you start, press the comma key (,) or use the magnification pop-up menu in the lower left corner of the Composition window to reduce the zoom to the next lower value. Or, you can choose View > Zoom Out. At 0:00, you can then see the entire bounding box of the layer ...