Adobe Photoshop CC 2014 v.14.xx - Manual (Page 742)

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Linear keyframe
Hold keyframe
command, or as an image sequence or video using the Render Video command. You can also save it in PSD format, which can be imported into
Adobe After Effects.
Use keyframes to animate layer properties
You can animate different layer properties, such as Position, Opacity, and Style. Each change can occur independently of, or simultaneously with,
other changes. If you want to animate different objects independently, it’s best to create them on separate layers.
For a video on animating layer properties, see www.adobe.com/go/vid0024 .
Here are some examples of how you can animate layer properties:
You can animate position by adding a keyframe to the Position property, then moving the current time indicator and dragging the layer in the
document window.
You can animate a layer’s opacity by adding a keyframe to the Opacity property, then moving the current time indicator and changing the
layer’s opacity in the Layers panel.
You can animate 3D properties, such as object and camera position. (For more information, see Create 3D animations (Photoshop
Extended).)
To animate a property using keyframes, you must set at least two keyframes for that property. Otherwise, changes that you make to the layer
property remain in effect for the duration of the layer.
Each layer property has a Time-Vary stopwatch icon that you click to begin animating. When the stopwatch is active for a specific property,
Photoshop automatically sets new keyframes whenever you change the current time and the property value. When the stopwatch is inactive for a
property, the property has no keyframes. If you type a value for a layer property while the stopwatch is inactive, the value remains in effect for the
duration of the layer. If you deselect the stopwatch, you will permanently delete all of the keyframes for that property.
Choose interpolation method
Interpolation (sometimes called tweening) describes the process of filling in unknown values between two known values. In digital video and film,
interpolation usually means generating new values between two keyframes. For example, to move a graphic element 50 pixels to the left in 15
frames, you’d set the position of the graphic in the first and 15th frames, and mark them both as keyframes. Photoshop interpolates the frames
between the two keyframes. Interpolation between keyframes can be used to animate movement, opacity, styles, and global lighting.
In the Animation panel (Photoshop Extended CS5) or Timeline panel (CS6), the appearance of a keyframe depends on the interpolation method
you choose for the interval between keyframes.
Evenly changes the animated property from one keyframe to another. (The one exception is the Layer Mask Position property which switches
between enabled and disabled states abruptly.)
Maintains the current property setting. This interpolation method is useful for strobe effects, or when you want layers to appear or disappear
suddenly.
To choose the interpolation method for a keyframe, do the following:
1. In the Animation panel (Photoshop Extended CS5) or Timeline panel (CS6), select one or more keyframes.
2. Do one of the following:
Right-click a selected keyframe and choose either Linear Interpolation or Hold Interpolation from the Context menu.
Open the Animation panel menu and choose either Keyframe Interpolation > Linear or Keyframe Interpolation > Hold.
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