Adobe Premiere Pro 2.0 [Electronic resources] نسخه متنی

1.

Drag two instances of Video 14c to the Lesson 14 Practice sequence and place them one above the other on the Video 1 and Video 2 tracks.

You will use the Track Matte Key to put the dancer's face in an oval and to turn the rest of the clip transparent. Then you will apply Mosaic to that second clip to turn the oval into a collection of moving rectangles. That oval mosaic will play on top of the unaltered clip below it so only the oval portion is in a mosaic.

2.

Use the Titler to create an oval (you can use the one I created for this exercise Ovalin the Project panel).

As a reminder, to make an oval that will work with the Video 14c clip:

• Move the CTI into that clip.

• Press F9 to open the Titler.

• Name the title.

• Select the Ellipse tool (E).

• Alt+click in the center of the dancer's face.

• Drag to form an oval that's a bit larger than her face.

  If the default Style is selected (the one highlighted in the next figure), the oval will be solid white. But in this case, any solid color will do.

• Close the Titler.

  
  

3.

Drag the Oval graphic to Video 3 above the two Video 14c clips.

4.

Use Motion on that oval to follow the motion of the dancer in the clip below it.

You've done this before:

• Select the Oval clip.

• Place the CTI at its beginning.

• Open Motion in the Effect Controls panel.

• Click the Position Toggle Animation stopwatch to turn on keyframes.

• Drag the oval in the Program Monitor to position it over the dancer's face.

• Move the CTI until the dancer's face moves to a new spot, and reposition the Oval.

• Do this as many times as necessary to define a path that follows the dancer's motion.

  You'll end up with a fairly convoluted path, something like that shown in the next figure.

  
  

5.

Apply the Track Matte Key to the clip on Video 2 and select Matte: Video 3 and Composite: Matte Alpha (although Matte Luma will also work).

You will see no change, since the face in the oval and the portion of the scene made transparent matches what's below it in the sequence.

6.

Drag Mosaic to the clip on Video 2.

7.

Set the Horizontal and Vertical Blocks values to about 25 (a higher number makes the blocks so small they no longer obscure the dancer's face and a lower number looks too blocky).

[View full size image]

8.

Play the clip.

If your Motion Position settings are reasonably accurate, the oval mosaic will follow the dancer's face.

Using Premiere Pro to create a traveling matte and applying motion settings to it can be relatively simple if the motion is easy to follow and generally falls on a straight line. Curved or convoluted paths are a trickier proposition. That's where Adobe After Effects shines. The Professional version of that powerful video production tool has a Motion Tracker that builds a traveling matte path in a matter of moments. You tell it what object to follow and it automatically tracks that motion. I demonstrate that later in the book.

1.

Put two instances of Video 14e, one above the other on the Video 1 and Video 2 tracks of the Lesson 14 Practice sequence.

2.

Check out the Mirror effect by dragging it to the clip on top, dragging its Reflection Center crosshair target around the Program Monitor, and changing its Reflection Angle in the Effect Controls panel.

You'll see that it has lots of possibilities but it does have a kaleidoscope look to it, which might not be what you want.

3.

Delete the Mirror Effect.

4.

Apply Horizontal Flip to the top clip.

That makes that entire clip a mirror image of the clip on Video 1 but for the moment the clip on Video 2 is covering the clip below it on the Timeline.

5.

Use Motion on the top clip and change the Scale to 50% and the Position parameters to 540, 240 (that slides it to the right half of the screen).

6.

Use Motion on the bottom clip and change the Scale to 50% and the Position parameters to 180, 240 (sliding it to the left half of the screen).

7.

Play that clip.

This creates a mirror effect using the entire clip. You can increase the scale and use Crop to mirror a specific part of the clip or enable you to expand it to full-screen size.

1.

Put two instances of Graphic 9.psd, one above the other on the Video 1 and Video 2 tracks of the Lesson 14 Practice sequence.

2.

Apply Mirror to the clip on Video 2 and you'll get an idea that it can do some funstuff, though there's no way you can rotate the two graphics independently.

3.

Delete the Mirror effect.

4.

Right-click on the Video 14c clip on Video 2, select Copy, right-click on the Graphic 9 clip in Video 2 and select Paste Attributes.

That applies the Motion Scale and Position parameters used in the previous mini-lesson (it also applies the Horizontal Flip effect but that doesn't affect this symmetrical clip).

5.

Right-click on the Video 14c clip on Video 1, select Copy, right-click on the Graphic 9 clip in Video 1 and select Paste Attributes.

6.

Select the Graphic 9 clip on Video 2, move the CTI to its first frame, click the Rotation Toggle Animation stopwatch to turn on keyframes (with a default setting of 0 for Rotation), move the CTI to the end of the clip and put in 10x for the Rotation value.

7.

Apply Rotation with keyframes to the other clip but use 10x for its ending value. Play these composited clips.

The arrows will spin side by side, in opposite directions. You could have them spin into the frame from off the screen, start small and grow, spin in opposite corners, or spin side-by-side from one side of the screen to the other. Mirrored animation is a useful editing tool.

1.

Create a white matte.

As a reminder: Click the New Item button at the bottom of the Project panel, select Color Matte, select white, click OK, name the matte, and click OK (or you can use the Lesson 14 Nested Sequence, move the CTI to the edit point between the Video 14b and Video 14e clips at the end of the sequence and press the equal key (=) four times or so to expand the view of that edit point.

4.

Delete the transition you put there (click the transition rectangle between the clips and press Delete).

5.

Drag the White Matte to that edit point, press S to temporarily turn off the Snap feature, and center that 6-frame (one-fifth of a second) clip over the edit point.

6.

Drag the video Cross Dissolve to that White Matte clip and set the Duration to 2 frames (so it'll fade up in only two frames).

7.

Drag Cross Dissolve to the right side of the White Matte clip (so it dissolves out) and set its duration to 2 frames.

Your white flash transition should look like the next figure.

8.

Play that segment.

There will be a momentary flash between the clips.