Displacement Maps: Static Layers in Motion

One way to animate a static image is to apply a moving displacement map layer to the image layer. Using this technique, you can make still waters ripple, static flags wave, or trees in the background sway in the wind. This requires creating a grayscale displacement map image that will be animated in a loop and applied to the image layer you want to affect.

In this first project study of displacement maps, we will be using the file Water.jpg, found on the DVD (Figure 2.9). Notice that this is a perspective angle photograph— which will be important as we create the displacement map image.

Note: For comparison and examples,you can view the completed QuickTime sample movies for this chapter,found on the DVD.

Figure 2.9

The source image that will be put into motion with a displacement map

Figure 2.9

The source image that will be put into motion with a displacement map

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