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Previewing the Effect > Previewing the Effect - Pg. 147

work. That's why interior designers choose only one dominant color for each room. ·Whicheffectismostappropriate? As noted earlier, the crossfade is almost always the least intrusive, most effective, and best-looking transition. But each of the other iMovie transitions can be appropriate in certain situations. For example, the Radial wipe, which looks like the hand of a clock wiping around the screen, replacing the old scene with the new one as it goes, can be a useful passage-of-time or meanwhile-back-at-the-ranch effect. The catalog of transitions on page 154 gives you an example of when each might be appropriate. Remember, though, that many of them are useful primarily in music videos and other situations when wild stylistic fights of fancy are more readily accepted by viewers. Tip: The Fade In and Fade Out "transitions" in iMovie are exempt from the stern advice above. Use a Fade In at the beginning of every movie, if you like, and a Fade Out at the end. Doing so adds a professional feeling to your flm, but it's so subtle, your audience will notice it subconsciously, if at all. When Not to Use Transitions Creating a Transition To see the list of transitions iMovie offers, click the Trans button, as shown in Figure 6-2. The Clips pane disappears, only to be replaced, in the blink of an eye, by a com- pletely different set of controls. Previewing the Effect Like most video editing software, iMovie has to do a lot of computation to produce transitions, so it can't show you an instantaneous, full-speed, full-smoothness preview. Therefore, iMovie offers a choice of lower-quality (but instantaneous) previews: ·ThePreviewwindow.For a very small preview, shown in the tiny screen above the Transitions list, just click the name of a transition. This preview plays in real time, endeavoring to make the transition preview last exactly as long as the fnished transition will. On slower Macs, you don't see all the frames in this little Preview window, making the transition appear jerky, but rest assured that the fnished transition will be extremely smooth. ·TheMonitorwindow. To see a preview in a much larger format--big enough to fll the Monitor window--click the Preview button. Either way, you can drag the Speed slider just above the list to experiment with the length of each transition as you're previewing it. The numbers on this slider--00:10 (10 frames) at the left side, 10:00 (10 seconds) at the right side--let you know the least and greatest amount of time that a transition can last. chapter6:transitionsandeffects 147