Tutorial: New Features in Adobe Premiere Pro CC

在本教程中，我将向您展示Adobe Premiere Pro CC中的四个关键新功能. First is Master Clips.

Master Clips

As you can see in Figure 1 (below)在Twirls序列中，我已经使用了Twirls剪辑4次. Reviewing the footage in the timeline, 看起来它可以使用更多的亮度和对比度. With previous versions of Premiere Pro, I’d have to add the Brightness and Contrast adjustments to each instance of the clip in the timeline individually.

Figure 1. The Twirls clip appears 4 times in this timeline. Click the image to see it at full size.

新的Master Clips功能可以让我更快地进行调整.

First, I select the Twirls clip in the Project panel and press F to open it in the Source Monitor. Then I click the Effects tab and choose Video Effects > Color Correction > Brightness & 对比并拖动到项目面板中，并将其放在Twirls剪辑上. 现在，如果我转到效果控制面板，我可以看到亮度 & Contrast effect has been added to Twirls in the Project panel (not just the selected clip in the timeline).

Now, if I make a Brightness adjustment to the Twirls clip in the Project panel (an excessive one to underscore the point, as shown in Figure 2, below)，调整将反映在时间轴上剪辑的所有实例中.

Figure 2. The Brightness adjustment I made to the Twirls clip in the Project panel has been applied to all instances of the clip in the sequence. Click the image to see it at full size.

This new feature is very convenient if you’re using one clip in multiple places and need to apply an adjustment to all the places it appears in your project.

Masking and Tracking

Next up is Masking and Tracking. 基本上，Premiere Pro中的每个效果现在都带有遮罩. So let’s say I want to do a Witness Protection Program effect on the dancer in my clip and blur her face. For this I’ll use the Mosaic effect. I choose Effects > Video Effects > Stylize > Mosaic, then drag it onto the clip in the timeline, as I would in previous versions of Premiere Pro.

当我打开效果控制面板自定义效果, 直接在马赛克下，我看到椭圆和方形按钮(Figure 3, below)，允许我创建一个椭圆或正方形蒙版，并应用这样的效果.

Figure 3. 将椭圆按钮夹在效果下面创建一个椭圆蒙版.

When I click the ellipse button, Premiere Pro creates a mask in the clip in the sequence as shown in Figure 4 (below).

Figure 4. The ellipse mask applied to the clip. Click the image to see it at full size.

Next, I zoom in on the image and size the mask for the face using the bounding controls on the ellipse (Figure 5, below).

Figure 5. The ellipse mask resized to cover only the face.

到目前为止，我们所做的只是隔离了她脸上的面具. 这在这个特定的画面里效果很好，但是当她移动的时候? That’s the tracking part of the effect.

To track the mask, go back to the Effect Controls panel, and under Mosaic > Mask, 点击蒙版路径右侧的播放按钮, aka “Track selected mask forward” (Figure 6, below).

Figure 6. Click here to track the mask.

A Tracking progress window will open, 以前在After Effects中执行的过程现在在Premiere Pro中执行. 随着跟踪过程的进行，你可以看到面具跟踪对象的运动. 正如您可以在本文开头的视频中看到的2点58分左右, as the dancer starts moving around the floor, the mask more or less follows her face. If you see it go moff course, you can stop the process, 通过手动将面具移回她的脸部位置来纠正它, then click the play button again to resume the tracking at the point at which you stopped it.

Once the process is complete, 当舞者在地板上移动时，你可以看到面具跟随她的脸. 所以，你不仅得到了屏蔽效果，还得到了跟踪效果. 在以前的版本中，你必须使用After Effects来跟踪蒙版.