Graphics Programs Reference
In-Depth Information
•
3D Cross Section: Available in the 3D panel, and covered in detail in
Chapter 12. Lets you cut the 3D polygon into two sections and hide one
of them, then animate the surface that cut the 3D polygon to change the
visible part.
The properties mentioned above are used to create the animation by
assigning keyframes to the property to animate it. Next to each of the
property layers is the Time-Vary Stopwatch icon, which activates the
keyframe animation. When you activate this icon, it places a keyframe where
the Current Time Indicator is located. So if you change the place of the
Current Time Indicator and any of the object properties such as the position,
a keyframe is added automatically and the animation is generated between
the two keyframes. In the exercises in this chapter, you will learn how to
create animation using the Animation panel in Photoshop.
Warning: If you have a
keyframe on a speciic
property in the current
layer and uncheck the
Time-Vary Stopwatch
next to this property,
you will delete all the
keyframes assigned
to it.
In addition to automatically adding keyframes, you can add keyframes
manually by pressing the “Add or remove keyframes” icon on the left of the
Time-Vary Stopwatch. When you activate it, it turns yellow to indicate that
there is a keyframe in the current frame. You can also delete the keyframe by
deactivating the “Add or remove keyframe” icon. One reason why you might
use the manual keyframe placement is to create a keyframe without
changing any of the object properties. For example, you might want the
object to pause and not be animate for a period of time.
Next to the “Add or remove keyframes” icon are the keyframe navigation
arrows, which you can use to navigate through keyframes. When using the
keyframe navigation arrows, it is important to place the Current Time
Indicator exactly over the keyframe. For example, if you would like to change
the properties of an existing frame, you can use the keyframe navigator to
place the Current Time indicator over the keyframe and then change it.
Placing the Time Indicator manually over the keyframe might result in
inaccurate placement—you might place the indicator on a frame nearby to
desired keyframe—which will cause any changes to create a new keyframe
instead of editing the current one.
There is an audio component as well, if you import a video ile with audio.
You can toggle audio tracks on/of with an icon next to the video layer.
There are two other properties layers that inluence the whole layer:
•
The Comments layer, where you can add comments or notes over each
part of your animation on the timeline.
•
The Global Lighting, where you can edit the style and light angle that is
applied to the whole object in the document, including styles that are
applied to an object, such as the drop shadow, inner shadow, and
outer shadow.
The global angle of the light is a value in the Styles dialog box and can be
changed in the animation by creating keyframes with the Global Lighting
