After effects wiggle expression
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The graphics are very basic, focussing on the technique and not on design. (3) Finished version to check how the effect is applied if you get stuck (2) Prepared artwork so that you can start quickly,
After effects wiggle expression download#
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After effects wiggle expression how to#
How to make the Leaves of a Tree move in the wind The “wiggle” effect can be applied to many properties in AfterEffects, such as: Position, Rotation and Opacity.īased on some simple examples you will learn the possibilities and the power of this technique. If you want them to be different, instead of using a Slider Control for your Wiggle value use a Point Control for 2 dimensions, and 3D Point Control for 3 dimensions such as position for 3D layers.Īnd that’s about it.In this Adobe After Effects class you will learn how to use the simple effect “wiggle” and use it as an expression to create stunning dynamic animations without using any Key-Frames.Īfter this class you can make your animation feel organic and random. If you use it with a property that has 2 dimension, say scale for example, both first and second values will be the same. Now, since Wiggle value is a Slider Control, it only has one dimension. It will be supplemented with Wiggle value. Since value represents what your property already holds as its base value. Now, you can apply to your layer’s position this expression: value + thisComp.layer("Controller").effect("Wiggle value")("Slider") Name it maybe Wiggle value and set its base amount to the the number you want to start from, say 50 for example, and then apply the same kind of expression: wiggle(effect("Frequency")("Slider"), effect("Amplitude")("Slider")) To do this, you will need to add another slider to your controller. The good thing about using a controller, is you can apply a wiggle to the amplitude too. If you use the expression above on many layers, all of their wiggles will be coordinated. If you don’t set it to true the random number will change on every frame and this will probably result in things you do not want. The second parameter is the timeless parameter. The first parameter (`1`) is the seed number that will be used to generate the random number. seedRandom(1, true) wiggle(thisComp.layer("Controller").effect("Frequency")("Slider"), thisComp.layer("Controller").effect("Amplitude")("Slider")) The `seedRandom()` function forces the wiggle (or any other function using random numbers) to use the seed your are providing.
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By default After Effects attributes a different seed value to each wiggle. You can sync multiple wiggles by using the `seedRandom()` function.
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This way, you would be able to keyframe one or both of those sliders in order to increase or decrease the wiggle effect. Next, on your layer’s position property, you would add this expression: wiggle(thisComp.layer("Controller").effect("Frequency")("Slider"), thisComp.layer("Controller").effect("Amplitude")("Slider")) You can name them however you like, but I think these names are the most obvious. One named `Frequency`, and the other one `Amplitude`. This can easily be resolved by creating a null layer, typically named `Controller`, to which you would apply two Slider Control effects. You often might want to keyframe a wiggled value. If you would like instead to have `x` wiggled normally, but `y` and `z` to have a bigger wiggle you could do: var low_wiggle = wiggle(.5, 20) var high_wiggle = wiggle(.5, 50), high_wiggle, high_wiggle] How to keyframe the wiggle values The only difference with a 3D layer is that it would need a third value. Here, only our value `x` will have the wiggle. If you want to just wiggle one of the axis of a 2D layer you can simply do this: var wiggle = wiggle(.5, 20), value] If you are applying it on a 3D layer, it returns an array of three numbers (``) and if you are applying it on a 2D layer it returns an array of two numbers (``). The wiggle function returns an array or numbers.
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So if you would like your position to move on a scale of 20 pixels every half second you would use this expression on the position property: wiggle(.5, 20) How to wiggle x, y and z separately The typical wiggle expression in After Effects is this: wiggle(frequency, amplitude)