您将在视频中看到的更常见的动画或过渡之一是淡入和淡出。这些很受欢迎，因为它们看起来都不错并且很容易实现。使用Adobe Premiere进行视频编辑(video editing)，您可以为任何内容添加淡入或淡出动画 - 文本、徽标、剪辑等。
在本Premiere Pro 教程(Premiere Pro tutorial)中，我们将向您展示使用淡入/淡出动画的两种不同方法。首先(First)使用文本或徽标等元素，然后在剪辑上将其用作过渡。
两者都非常简单，如果您对Adobe Premiere(Adobe Premiere)有基本的了解，应该不会花很长时间。如果没有，请先尝试阅读我们关于Adobe Premiere Pro CC的介绍性文章，以及我们关于使用关键帧(using keyframes)的文章。
如何淡入或淡出文本或徽标(How to Fade Text Or a Logo In or Out)
如果您想在引入文本或您自己的徽标时使用此效果，则必须使用“效果控件(Effect Controls)”面板。首先(First)，确保您已在徽标中添加或从基本图形(Essential Graphics )面板 添加文本。(or add text)
- 选择您的标志或文字(logo or text)的剪辑。
2. 打开效果控制(Effect Controls)面板。
3. 如果您添加了徽标图像，请在此处打开不透明度(Opacity)下拉菜单。如果您使用的是Essential Graphics中的文本，请查看Text下拉菜单并找到Opacity。
4. 确保时间线光标(timeline cursor)位于所选文本/徽标剪辑(chosen clip)的开头。
5. 使用不透明度(Opacity)值，将其设置为0。单击秒表(stopwatch)以设置关键帧。
6. 将时间线光标移动(timeline cursor)到剪辑中您希望文本/徽标可见的位置。
7. 将不透明度(Opacity )值设置回100。将自动设置第二个关键帧。
8.播放视频预览动画，看看你是否喜欢速度。要更改动画的速度，只需将第二个关键帧移近或远离第一个关键帧。进一步(Further)会减慢它，而接近会加快它。
请记住，如果您在打开秒表后再次单击它，则会将其关闭，Premiere将删除您的关键帧。每当您更改Opacity的值时，都会自动设置关键帧，或者您可以单击其右侧的菱形图标自行(diamond icon)设置或删除它们。您可以使用灰色箭头在关键帧之间移动。
如何使用过渡效果进行淡入或淡出(How to Make a Fade In or Out With a Transition Effect)
如果您想使用fade in/out technique作为视频剪辑的过渡效果(transition effect)，您也可以这样做。从技术上讲，您可以使用与淡化文本或徽标相同的方式来执行此操作，但有一种更简单的方法，即使用类似溶解的效果，然后对其进行自定义。
- 选择要淡入/淡出的剪辑。
- 选择“效果(Effects)”工作区以查看“效果(Effects)”面板。
3. 转到Video Transitions > Dissolve。
4. 尝试Dip to Black或Film Dissolve过渡。将(Drag)其拖放到您的剪辑上，在开始时淡入或在结束时淡出。
5. 您可以单击剪辑上添加的效果来改变它的开始位置和动画的速度。
如果您只想要一个简单的淡入/淡出效果，这种方法效果最好。但是，如果您想更好地控制动画，则使用上述方法处理文本/徽标将是更好的选择。然后，您可以完全按照您的意愿更改不透明度和时间的值。
如果您想淡出一个剪辑并淡入(clip and fade)另一个剪辑，则可以执行淡入淡出动画(fade animation)的另一种方法是Crossfade。只需(Just)将Film Dissolve效果添加到要淡出的剪辑的结尾和要淡入的剪辑的开头。
要删除fade in/out，请单击剪辑上的效果并按键盘上的退格键。或者，右键单击它并选择Clear。
何时使用淡入或淡出动画(When to Use Fade In or Out Animations)
淡入或淡出可能更具戏剧性的效果。您可以在完成场景或完全结束视频时添加它。它也非常适合用于徽标或在屏幕上转换文本。
如果您将其用作过渡，最好不要过度使用此效果，因为如果使用过多，它会很快变得令人厌烦。相反，坚持淡入/淡出您想要强调剪辑的开头或结尾的位置。(beginning or end)如果剪辑中有音频，那么对淡入淡出效果的一个很好的补充可以是与视频一起进行音频淡入淡出(audio fade)。
在下一个视频中使用淡入或淡出动画(Use a Fade In or Out Animation In Your Next Video)
既然您知道如何应用此效果，请在您的下一个视频项目(video project)中尝试一下，以使其具有吸引力和专业性。这是许多视频中使用的一种常见但简单的效果，也是初学者了解过渡的重要一步。如果您尝试使用它，您可以看到许多使用它的方法。
How to Make a Fade In or Out Animation in Adobe Premiere Pro
One of the more common animations or transitions you’ll see in videoѕ arе fade-inѕ and fade-outs. These are pоpular because thеy both look nice and аre prettу easy to achieve. Using Adobe Premiеrе for videо editіng, you can add a fade-in or out animation to anything – text, logos, clips, etc.
In this Premiere Pro tutorial, we’ll show you two different ways to use a fade-in/out animation. First with an element such as text or a logo, and then on a clip to use it as a transition.
Both are very simple and shouldn’t take long to do if you have a basic understanding of Adobe Premiere. If not, try reading our introductory article on Adobe Premiere Pro CC first, as well as our article on using keyframes.
How to Fade Text Or a Logo In or Out
If you want to use this effect when you introduce text or your own logo, you’ll have to use the Effect Controls panel. First, make sure you’ve added in your logo or add text from the Essential Graphics panel.
- Select the clip of your logo or text.
2. Open the Effect Controls panel.
3. If you’ve added a logo image, open the Opacity dropdown here. If you’re using text from Essential Graphics, look under the Text dropdown and find Opacity.
4. Make sure the timeline cursor is at the beginning of the chosen clip of your text/logo.
5. Using the Opacity value, set it to 0. Click on the stopwatch to set a keyframe.
6. Move the timeline cursor to the point in the clip where you want the text/logo to be visible.
7. Set the Opacity value back to 100. A second keyframe will automatically be set.
8. Play the video to preview the animation and see if you like the speed. To change the speed of the animation, simply move the second keyframe closer or further from the first. Further will slow it down, while closer will speed it up.
Keep in mind that if you click on the stopwatch again after turning it on, you’ll turn it off and Premiere will delete your keyframes. Keyframes are set automatically whenever you change the value of the Opacity, or you can click on the diamond icon to the right of it to set or delete them yourself. You can use the gray arrows to move between keyframes.
How to Make a Fade In or Out With a Transition Effect
If you want to use the fade in/out technique as a transition effect for your video clips, you can do this as well. You can technically do it the same way as fading text or a logo, but there’s an easier method that involves using a dissolve-like effect and then customizing it.
- Select the clip you wish to fade in/out.
- Select the Effects workspace to see the Effects panel.
3. Go to Video Transitions > Dissolve.
4. Try out the Dip to Black or the Film Dissolve transition. Drag and drop it onto your clip, either at the beginning to fade in or at the end to fade out.
5. You can click on the added effect on the clip to alter where it begins and the speed of the animation.
This method works best if you just want a simple fade-in/out effect. However, if you want more control over animation, using the above method for text/logos would be the better option. Then you can change the value of the opacity and timing exactly as you wish.
Another way you can do a fade animation is a Crossfade, if you want to fade out of one clip and fade into another. Just add the Film Dissolve effect to both the end of the clip you want to fade out of, and the beginning of the clip you’re fading into.
To remove a fade in/out, click on the effect on the clip and hit backspace on your keyboard. Or, right-click on it and select Clear.
When to Use Fade In or Out Animations
Fading in or out can be more of a dramatic effect. You can add it when you’ve finished a scene or ended a video entirely. It’s also great for logos or to transition text on-screen.
If you’re using it as a transition, it’s best not to over-use this effect as it can get tiresome quickly if used too much. Instead, stick to fade in/out where you want to emphasize a beginning or end of a clip. If you have audio with the clip, a nice addition to the fade effect can be to do an audio fade along with the video.
Use a Fade In or Out Animation In Your Next Video
Now that you know how to apply this effect, try it out in your next video project to make it engaging and professional. It’s a common yet simple effect used in many videos and a great step to learn about transitions for beginners. If you experiment with it, you can see the many ways to use it.
