Pyro Industries API-1394PCI Manual de usuario descargar pdf (Pagina 293)

272

CHAPTER 7: EFFECTS AND TRANSITIONS ■

in the monitor. To zoom out, Shift-Ctrl/F-click in the monitor. You can also map the

Reduce and Enlarge buttons onto your interface. You’ll especially find the zoom tools

helpful if you use the Outline Path button. For effects that move on a path across the

screen, the Outline Path selection will allow you to see the movement of the effect from

keyframe to keyframe. Each gray dot in the path represents a keyframe.

In some cases, you might find it difficult to navigate your way from keyframe to

keyframe through complex effects using the small Timeline underneath the Effect Pre-

view monitor. Just to the left of the monitor is a very handy keyframe scale bar. By

adjusting this slider, you can zoom in on the effect Timeline and see all the keyframes.

In the regular configuration, keyframes can easily get lost. Zooming the Effect Preview

Timeline allows you to analyze the keyframes more effectively.

Another method is to use the fast-forward and rewind keys. Normally, these

keys function so that you can jump forward and backward between each locator on

your track. If you hold down the Alt/Option button and use them, they would nor-

mally jump from transition to transition in your Timeline. However, when you map

them underneath the Effect Preview monitor (and they must be under the monitor, not

on the Timeline buttons for this to work), they will jump forward or backward to each

keyframe so that you can see and examine the parameters for each one.

Building Vertical Effects

In the “Basic Editing”chapter, we covered how to add video tracks (Ctrl+Y/F+Y) and how to

monitor video tracks (by clicking the monitor button next to the track name).Building vertical

effects such as multiple Picture In Picture tracks,keys, resizes,and titles is fairly simple,at least in

theory.The key to building vertical effects is a concept referred to as previsualization.

Prior to creating any type of complex effect, it’s a good idea to sketch it out on a piece of paper.Try

to determine which effects will be used, how each track will be assigned,what sources will be

needed,and what resources will be required.Sketching out an effect can be as simple as drawing

on a cocktail napkin or as complex as creating a spreadsheet with a storyboard visual reference.It’s

up to you, the effect designer, to determine which tools are necessary.

Previsualization is mentioned here only because so many picture editors can become overwhelmed

with 24 vertical video tracks.The effect in itself is a fairly simple thing.Manipulating an effect and

understanding its interaction with other effects is entirely different.When you previsualize, try to

break down your effect design to its most simple elements and draw it on the page.When you

attempt the effect in Xpress Pro,you can add each element step by step and then preview it to see

whether it works.

4440c07.qxd 11/6/05 9:42 AM Page 272

1 2 ... 288 289 290 291 292 293 294 295 296 297 298 ... 370 371

Sin comentarios

Pyro Industries API-1394PCI Manual de usuario Pagina 293