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A communications disruption can only mean one thing...
As is often the case with holograms, they can be susceptible to outside interference such as temperature inversions, poor reception, even forgetting to pay your hologram long distance bill. We’ll add some secondary noise and interference to our hologram as well.
First our hologram needs to turn on. While a simple adjustment to the opacity settings over time will do this, it would be even cooler to have the hologram shimmer as it flickers to life.
At frame 0, set the opacity for the hologram layer to 0%, then crank it up to 50% at frame 30.
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Stay at frame 30 and apply the Wave Warp effect from Effect>Distort>Wave Warp. Set the Wave Type to Sine, the Wave Height to 0, and the direction to 0. Create a keyframe for the Wave Height here, then return to frame 0 and increase the Wave Height to 6. This adds a nice undulating effect to simulate the hologram warming up.
If there is a temperature inversion, or just general static on the line, adding some noise to our hologram will spice it up even more.
Add another Wave Warp effect, this time setting the Wave Type to Noise. There should be a lot of interference as the hologram is turning on, so increase the Wave Height to 20, and the direction to 0 once more. In this example the noise fades out before the Sine Wave Warp applied previously, so around frame 25 set a keyframe and change the Wave Height to 0.
This noise effect can also be used throughout your hologram to simulate general breakup. Just apply the effect over a five to fifteen frame range and it should work.
If you want to simulate phasing of the signal, duplicate the hologram layer (this will also copy all of the effects settings), position the layer slightly to the left or right of the original, and lower the opacity to 0%. When the static gets too bad, simple change the opacity of the two layers.
For example, let’s say we have added more static noise at 3:00. Create opacity keyframes for both hologram layers. The Hologram layer should be set at 50%, and the Phased layer should be at 0%. At 3:05, change the opacity settings so Hologram is at 0% and the Phased layer is at 50%. Finally, at 3:10 reset the layers to their original opacities. Because this is a quick transition, the image will appear to pull to the left or the right and back again.
There are hundreds of possible ways to grunge up your hologram. Experiment by adding a film grain, lines to simulate a flicker in the middle of the subject, or even a slight fog near the bottom of the subject (on wide shots) to have the hologram fade out.
Source
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