Storms and Swarms – Part 2: Attack!


This is the second in series about “storm and swarm” animations. The first post described a “rain” effect to suggest the growth in wireless devices. That effect uses vertical motion, top to bottom. Horizontal motion can also be used as in this example suggesting hospital security threats:

The building is a simple combination of Rectangles and a projectile is a Union of a Rectangle and an Oval.

The projectiles are placed off the right (left) edge and Fly Out/To Left (To Right) animations are used; this is simpler than using motion paths:

swrm hosp 1

The animation timing is “random;” as I noted in the first post in this series, creating randomness is a challenge. The approach is basically to fiddle with the start times until you get the effect you want. In this case, the durations are all the same:

swrm hosp 2

You can also create effects where the motion appears to come out of the slide, or into it. Here’s an example that’s another kind of attack:

The UFOs are a couple of Ovals; the skyline is a series of Rectangles and Pentagons.

The UFO animation is a Basic Zoom/In To Screen Bottom with the starting positions off the top edge of the slide space. The “In” specifies that the observer moves in (the object gets larger). I also added two instances of the Teeter effect With the zoom to add to the flying saucer effect.

The zoom effects (PowerPoint 2010) are fairly bewildering. The Basic (?) Zoom has 16 variations, 4 of which are identical to the separate Zoom effect. You can, of course, create virtually any zooming effect you want by combining Grow/Shrink with motions.

Here’s the layout and animation pane for the UFO swarm:

ufo swarmIn this case, the sequence is fairly regular so it’s easier than the other swarms. Again, each UFO gets a zoom with two Teeters simultaneous with the zoom.

The next post in this series will create a word swarm.

If you want to see more details, use the link below and click on the PowerPoint icon to download a free “source” PowerPoint file containing these projects:

PowerPointy blog – swarms 2 – attack

See this page for more on downloading files.

If you have questions, praise or complaints, please add a comment below. If you appreciate my efforts, liking or following this blog might be a good idea.


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