Creating Video Effects in Premiere

Creating Video Effects in Premiere

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You also probably noticed the letter f is to the left of the effect name in the Effect Controls palette (see Figure 10-3). You can click this letter f to enable or disable an effect. If the f is visible, the effect is enabled. If you click the f again, it disappears and disables the effect. When an effect is disabled, it doesn’t display in the preview and it also won’t display in the Program, even if you if you scrub the timeline while pressing ALT (Windows)/OPTION (Mac).




FIGURE 10-3 The Enable Effect button in the Effect Controls palette

To Remove AN EFFECT FROM A CLIP:

		Click a clip that has an effect applied to it.
		Select the effect in the Effect Controls palette.
		Click the Trash can in the bottom right of the Effect Controls palette.
		The effect is now removed from the clip.

Effects can also be removed from a clip by selecting the effect in the palette and clicking Remove Selected Effect from the pop-up menu. All effects can be removed by selecting Remove All Effects in the Effect pop-up menu.

You can also customize the Effect Controls palette with options in the corresponding pop-up menu (see illustration). The Preview selections include No Previews and Previews After and During Adjust. The default setting is Preview During Adjust. This setting enables you to see how an effect is going to look when it’s applied to the clip and generally is the easiest way to preview an effect on a clip. Preview After Adjust enables you to see a preview of the effect on a clip after you finish adjusting the settings.

In the pop-up menu, you can also opt to display the clip in Best Quality or Draft Quality. Selecting the Best Quality setting is a better choice because this will dis-play the effect more accurately. Some effects yield subtle changes that wouldn’t be visible if you chose Draft Quality. However, selecting Best Quality as a setting will probably cause the video to preview at a slower speed, depending on your system’s configuration.[an error occurred while processing this directive]

Adding Multiple Effects to a Clip
Let’s say you want to add more than one effect to a clip. Adding multiple effects is as simple as adding a single effect and you can accomplish this in two different ways. In Figure 10-4, the artbeatsGlide.mov clip has a Posterize effect applied to it, in addition to a Wind effect from the Stylize folder. As you can see, the clip takes on the attributes of both the effects and their settings. Also, both effects are listed in the Effect Controls palette.

The Posterize effect reduces tonal levels in the RGB channels. It also reduces the number of colors or shades of gray in your clip, “flattening out” the tonality. By dragging the Levels slider to the right, you increase the number of colors or shades of gray. Dragging the slider to the left decreases the number of colors or shades of gray.

FIGURE 10-4
The clip named artbeatsGlide.mov has two effects applied to it

The Wind effect smears the pixels in the clip across the frame and yields an outcome that looks like a heavy wind is blowing on the clip.


	TIP If you decide to change the parame-ters of an effect after you apply it, select the clip and go to the Effect Controls palette. If it’s an effect that has slider controls right in the palette, adjust the sliders. Other effects like the Wind effect, have setup buttons you can click to get back to that effect’s settings dialog box. Still other effects, like the Horizontal or Vertical Flip in the Transform folder, or Black and White in the Image Control folder, don’t have any adjustable set-tings. So effects are all unique because of the variety of customized parameters that can be adjusted.

To Add MULTIPLE EFFECTS TO A CLIP:

		Select a clip with an effect.
		From the Effects palette, drag another effect on to the selected clip or in to the Effect Controls palette.
		With some effects, such as the Wind effect, a settings dialog box will give you the option of setting addi-tional parameters on the effect. Figure 10-5 displays the dialog box that appears when the Wind effect is added to a clip. The look and feel of the wind effect can be customized by selecting the Wind, Blast, or Stagger options. On this clip, the Blast option, which creates sharp, hard vertical lines resembling a wind of tornado-like force, was selected.
		The new effect name will appear underneath the previously added effect.
		Click the name of an effect in the Effect Controls palette to modify the controls on a particular effect.




	FIGURE 10-5 The Wind Settings dialog box from the Wind effect in the Effects palette

When you use multiple effects on a clip, the manner in which they’re stacked in the Effect Controls palette determines the way the clip will look. So, in some cases, depending on the position of effects in the palette, the clip could conceiv-ably appear totally different. You can restack the order of multiple clips simply by clicking-and-dragging the effects up and down in the palette. When you do so, a double-headed arrow appears in the palette, which helps to guide you to a new vertical position in the palette.

Now that you know how to apply multiple effects, let’s check out some other ways to modify these effects.

Keyframes and Video Effects

Adding single and multiple effects to a video clip is obviously easy to do. But, after a while, you might wonder if that’s all there is to effects. In fact, if that’s all effects were in Premiere, they’d be pretty limiting.

Remember, in the beginning of the chapter, we discussed animating effects? Well, effects applied to a clip can have keyframes in the duration of the clip. Positioning keyframes on the clip makes the effects animate over time. Keyframes are similar in concept to motion keyframes, where you can change the properties of a clip (posi-tion, zoom, rotation, and so forth) at a specific point in time (see Figure 10-6).


	NOTE Remember the two little icons to the left of the superimpose tracks? To refresh your memory, the diamond on the far left is used to display keyframes and the red rectangle is the Opacity Rubberband icon. You used the Rubberband feature when applying vari-ous levels of opacity to a clip in the last chapter. When an effect is added to the timeline, the Display Keyframe icon becomes active. You can toggle between the Display Keyframe icon and the Opacity Rubberband icon when an effect is applied to a clip by clicking either icon. This means you can also create various levels of opacity on your effects.

FIGURE 10-6
Keyframes on a clip in the timeline with a ZigZag effect applied

Depending on the distance/number of frames in between the two keyframes, the in between frames will change over time from one keyframe effect to the other.

As you can see in the previous figure, you can change the parameters of an effect over time and use keyframes to mark the points of change. In addition, you can set keyframes on mul-tiple effects on the same clips. Sound complicated? Well, the concept is simple, but if your clips contain lots of effects with many keyframes, then you might need to do some planning up front.

Another terrific feature of Premiere 6 is you can add keyframes right in the timeline. This makes the interface incredibly intuitive. You can see exactly what you’re doing without having to open yet another dialog box and use a representation of the timeline to set your keyframes.

Source: McGraw-Hill Professional Publishing

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