Hi, I need a water ripple effect on each beat of a sound effect, like a bucket of water getting disrupted when an elephant jogs by.
Is there a(n easy) way?
Height maps will do it.
Except you need something to drive the map, there's a tut out there somewhere on how to map text to ripples, same trick would give the desired effect.
Still you do need some video of real ripples, hm, maybe that tut came with the needed media.
Or of course anyone who got their Bryce for free now has a water generator that can be animated....
OK .. .T1 add ripple/swirl effect. Keyframe to what you want with the MARKERS in position. Now either pan./crop T1 event or use Track motion on T1 to position - or whatever.
Bob,
The tut came with media, but it was waves on a pebble beach, not ripples.
To make rings that will drive the bump map, create elliptical rings in the color gradient generator. Keyframe a suitable size change and duplicate the event a few times, overlapping (different tracks). Fiddle a little and you have a perfect ripple effect.
Tor
That I knew, was kind of hoping though that it'd be easy enough to translate the idea.
I just tried Grazies suggestion and well for me at least it just doesn't cut it, those FXs are only 2D transforms, a wave / ripple in water is more complex than that.
Didn't think of using the gradient generator though, good idea.
My heads still too 'practical' I think, want fire, go light a fire, want ripples, go throw a stone in a pond, sigh.
In this example i used the water ripple effect to do transitions from one image to the next, but you could use it on a single continuing clip just as easily. The height mask was created entirely using keyframed generated media.
I saw you clip Kelly, very nice.
What I have is a company logo that needs to be stirred "but not shaken" for only a brief moment, second or so. Until the next beat.
I still fail to see how to do this in spite of all the above suggestions.
Only potentially useful trivia: The Spielberg crew couldn't figure this out at first either. They ended up using a real-time pail of water with a neutral bottom and the camera angled to show light reflecting on the water surface. Then a string (I think a guitar string) was attached to the bottom center of the pan and plucked. Only this would cause a concentric ripple.
Conceivably (though beyond my present learning curve) you could film this in DV and use the image as an alpha mask...
The thing is, I can get the ripples in the white parts of the logo by masking. That is not the problem.
But I would like to stirr or ripple the logo itself. Like if somebody smashes a fist hard on a desk which makes a piece of paper tremble in a way that you cannot focus on the text during that brief moment.
You see similar effects in movies prior to earthquakes. You know rattling glasses and china. First very subtle until all hell brakes lose.
So, that kind of trembling or water ripple effect I want with the logo to perform at steady intervals, on the beat of a sound effect.
As Bob said, Height mapping is the way to go, it will ripple fast/slow/medium, whatever you want to whatever value you want. It will either blow the logo off the screen, or just barely ripple the logo.
The hard part is finding a water ripple file that works for you, but frankly, you don't really need it. You can use generated media for this. Because the "water" or ripple generating media is never seen, it can be anything, and generated media, whether it's a gradient with multiple rings, or it might be several bits of generated media to give a ringing effect, whatever...it's actually pretty easy. Gary Gowman made a great SONAR ring file that would heigh map to do this easily. I've got a tutorial on height mapping that shows this as well. Combine the two....it might be just what you need.
all these step throughs and walkarounds.. and multitrack editing and compositing..
dude...
go grab Pixelan spicemaster
youll get almost 1000 gradient transitions and thee can be used as constants when working A/B roll edits or as straight out transitions.
There are a variety of ways to use these gradients, from particles nd edges, through to displacements (which is what you want) u can even keyframe these... and al in less then a 1 minute...
im surprised noone els ementioned this.. considering its proabably the only real comprehensive set of 3rd party transitions available...
then again its also got afew filters as well, so your money is well spent either way.. Oh by the way, you can also create your own customised gradient and throw that in as teh displacement for the logo... layer that A to B, and voila....
this would take.. hmm.. maybe 3 minutes at the most to set up