Chap.11 Putting clips in motion

DV_module_10CS2 deleted

http://www.adobe.com/education/

1. Open 11-1.prproj

2. Switch to the Effects workspace: Window > Workspace > Effects

3. Click the Program Monitor, View Zoom Level drop-down list, and change the Program Monitor zoom level to 25%.

This is to help you see and work with the Motion effect’s bounding box.

4. Expand the Program Monitor frame (if necessary) so there are no scroll bars in the screen. Your Program Monitor should look like the previous figure (omitted here).

5. Play the clip.

Click inside the Program Monitor screen. That puts a bounding box with a crosshair and handles around the clip and activates the Motion Effect in the Effect Controls panel. Clicking on Motion or its Transform button in the Effect Controls panel will also activate the clip, bounding box in the Program Monitor.

6. Twirl down the Motion disclosure triangle in the Effect Controls panel to view its parameters.

Click anywhere in the clip bounding box in the Program Monitor, drag this clip around, and note how the Position values in the Effect Controls panel change.

Drag the clip so its center is directly over the upper left corner of the screen and note the Position values in the Effect Controls panel are 0, 0 (or close to that depending on exactly where you placed the center of the clip).

The lower right corner is 720, 480, the standard NTSC DV screen size.

Note: Adobe Premiere Pro uses an upside-down X/Y axis for screen location, which is based on a system used in Windows for so long that to change it now would create numerous programming headaches. The upper left corner is 0, 0. X and Y values to the left and above that point respectively are negative. X and Y values to the right and below that point respectively are positive.

Fine-tune that adjustment by changing the Position values in the Effect Controls panel to -360, 240.Since 360 is half of 720, this puts the right edge of the clip at the left edge of the screen frame. Put the CTI at the beginning of the clip and apply a Position keyframe there by clicking Position’s Toggle Animation stopwatch.

Drag the CTI to the center of the clip and center the clip in the Program Monitor. Fine-tune that location placement by setting the Position values to 360, 240. Changing the parameters adds a keyframe there.

Put the CTI at the end of the clip (press Page Down, then the left arrow key).

Change the Position values to 360, -240. That puts the clip completely above the screen and adds a keyframe.

Play the clip.

It moves smoothly on-screen, then slides off the top. You have created a path (if you don’t see

the path, click on Motion to switch on its display). Make note of a few things:

• It’s a curved path. Adobe Premiere Pro automatically uses Bezier curves for motion.

• The little dots describe both the path and velocity. Dots close together represent a slower speed, dots more spread out represent a faster speed.

The figure will be supplied later.

Drag the center keyframe in the Program Monitor down and to the left. Notice that the dots get closer together to the left of the keyframe and farther apart to the right.

The figure will be supplied later.

(Continued)