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single bubble
Hi Guys
I’m trying to create a single bubble using foam that is shimmering or bouncing as if it was in motion but I need it to stay in one position. So many options and parameters i’m going nuts. I need to comp something inside of it and have many of them floating around a room which I can handle. I’ve even tried to film real bubbles against black but didn’t have much luck due to the poor quality on my dv cam. Any help would be much appreciated.
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4 Replies
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Why not create your own single bubble in after effects or photoshop and then you can control it however you want. Should be pretty easy with some shapes and colored solids with some masks for shape and feathering to make a bubble in one comp and then use that bubble comp as a precomp and move it around all you want. Add a little turbulent displacement to it to give it a little bit of a wobble as it moves.
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Hi Steve,
Here is what you could do:
-After applying Foam, set the Production Rate to (0.010) and leave your Producer Point at the default position for now.
-Scrub your timeline until you see your first bubble.
-Set an initial KF for the Production Rate then move to the next frame and set the rate to (0.00) This will keep foam from creating more bubbles.
-Set the Lifespan to max.
-Now scrub your timeline until you see that your bubble almost leaves the comp window.
-In the Physics menu, set both Wind Speed and Turbulence to (0.00)
-Pressing Ctrl for fine control, adjust the Initial Speed & Direction parameters to place your bubble exactly over the Producer point.
Now, you have only one bubble that you can control by animating the producer point as you like.
If you want to follow Jonathan’s method, and you are not skilled at PS. You could simply save a frame of a Foam bubble with Alpha and follow his tip. You could also go to https://www.nyc-visual.com and download an example named Bubble Distortion.
Salut.
Serge -
Thanks for the tips guys, i’ll post up a clip when I finish to show you how it went. Thanks again.
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Sorry to excavate this ancient thread, but I have a similar need to animate a realistic, single bubble, and this technique seems to work perfectly for me, except for the all important ability to animate the path of the bubble.
Setting keyframes for the Producer Point does not seem to have any effect on the location of the bubble over time, at least in AE CC (2014).
I’m also noticing that the bubble, when sized up (I’m my case Size: 3.0) has very ugly, aliased edges.
Is there a trick to overcoming either of these issues?
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