Adobe Premiere Pro 2.0 [Electronic resources] نسخه متنی

1.

Drag Photo 13e to Video 1, past the clips you worked on in previous mini-lessons.

2.

Place Logo 13 on Video 2 above that clip.

This is a Photoshop graphic with an alpha channel. By default, Premiere Pro makes the graphic opaque and its alpha channel transparent, allowing whatever is below the alpha channel on the sequence to show through. You can use the Alpha Adjust effect to

see the alpha channel.

3.

Apply Alpha Adjust (Video Effects > Keying folder) to Logo 13.

Alpha Adjust is the clip-based version of the Opacity Fixed Effect. As with the Transform effect's connection to Motion, you can use Alpha Adjust to apply Opacity at some other point in the effect chain, instead of second-to-last where it would occur if you were to use the Opacity fixed effect. Alpha Adjust has a few extra parameters in addition to Opacity:

• Ignore Alpha Makes the alpha channel opaque, covering up the clip below it.

• Invert Alpha Makes the graphic transparent and the alpha channel opaque.

• Mask Only Converts the graphic to a white silhouette.

4.

Check both Invert Alpha and Mask Only to create something like a spiral porthole.

5.

Select Alpha Adjust in the Effect Controls panel and press Delete.

1.

Apply Alpha Glow (Video Effects > Stylize folder) to the graphic on Video 2, open its Settings dialog box, and experiment with its settings.

The Start and End Color parameters set the colors of the glow.

2.

Delete Alpha Glow from the Effect Controls panel and drag Bevel Alpha (Video Effects > Perspective) in its place.

Give this graphic a 3D beveled feel by adjusting the effect's parameters.

[View full size image]

3.

Add Channel Blur below Bevel Alpha in the Effect Controls panel.

This shifts individual color valuesred/green/blueas well as blurring the graphic into its alpha channel. As you make adjustments to its parameters consider that these color and blurring changes are all keyframeableall these cool color shifts can happen over time.

1.

Put Video 6d on the Video 1 track and Video 6a on Video 2 (place them after the clips you worked on earlier).

2.

Apply Camera View to the clip on Video 2, open its Settings dialog box, uncheck Fill Alpha Channel and click OK.

Leaving Fill Alpha Channel checked would put a solid color matte beneath this effect.

3.

Adjust its parameters so you can see the clip on Video 1 beneath it (I also used Motion to slide the clip a bit to the rightsomething Camera View can't do).

4.

Delete Camera View and apply Lens Distortion to the clip on Video 2.

5.

Open its Settings dialog box and uncheck Fill Alpha Channel.

6.

Adjust its parameters to display it over the clip on Video 1 (again, I used Motion to slide it off to the right and enlarge it).

7.

Delete Lens Distortion and drag Strobe Light to the Effect Controls panel.

This clip has several parameters (you can learn more about it in Premiere Pro Help). The only one applicable to this lesson is Strobe.

8.

Open the Strobe drop-down list and select Makes Layer Transparent.

9.

Play the sequence and watch how the Strobe Light effect quickly jumps back and forth between the clips on Video 1 and 2.

You can use Strobe Light to make flashes of any color and you can use keyframes to switch back and forth from that view to the view that shows the clip below it on the track.