Shulou(Shulou.com)06/03 Report--

This article is to share with you what are the commonly used expressions of ae, Xiaobian thinks it is quite practical, so share it with you to learn, I hope you can gain something after reading this article, not much to say, follow Xiaobian to have a look.

1. Use of slider expressions

Controlling a constant value change through the slider in expression control

If you control random displacement of change and then stop it

slider=effects("SliderControl")("Slider")

And then do a function on the slider

For example, random functions

wiggle(8,slider) This controls the expression. You can also control the adjustment of the camera lens.

2. Use of wiggle

If you're doing random function control,

wiggle(5,40)[0]

The number 0 in square brackets means-XYZ is defined in AE as 0 for X axis, 1 for Y axis and 2 for Z axis.

5 is dithering 5 times per second and 40 is dithering 40 pixels at a time.

Usually used with camera position and point of interest to adjust the camera lens.

Dithering expressions can also be set up with mask movement and puppet tool nodes.

3. Use of smooth expressions:

Smoothing expression, an expression that smoothes material

smooth(), the default values in parentheses are 0.2 and 5. That is smooth(0.2, 5)

0.2 Indicates-how many seconds per which smoothing occurs. 5 indicates-sampling rate, the higher the sampling rate, the smoother.

Smoothing expressions are often used when tracing material.

4. Use of random expressions:

random()

random(1,10) is a random value drawn between 1 and 10, with a minimum value of 1 and a maximum value of 10

[layerStyle.gradientOverlay.effect[0],random(5，15)]

This expression means that the first value of the gradientOverlay in the layer does not change. Effect[0] is the x value representing the gradientOverlay.

effectAE Common expression resolution is the second value, that is, y value. where x is constant and y is random(5,15).

5. Use of loopOut expressions:

loop expression

Basic format: loopOut(type="type",numkeyframes=0)

loopOut(type="pingpong",numkeyframes=0) This is a pingpong type loop, used just like pingpong ball.

loopOut(type="cycle",numkeyframes=0) This is a circular type loop, which loops through a set of actions.

loopOut(type="continue") This is where the computer continues to calculate unfinished motion.

numkeyframes=0 is the number of cycles, 0 is infinite, 1 is only one cycle, 2 is two cycles, and so on.

6. Time expression:

thisComp.layer("").transform.position.valueAtTime(time-a number)

The time delay of the position parameter of the transform attribute of a layer of this composition is a certain value

For example: thisComp.layer("").transform.position.valueAtTime(time-1)

This expression means that when the composite object moves, the movement time is always delayed by 1 second.

7. Exponential expression:

Transparency parameter opacity, fill index*20 is to make its transparency value 20%

If the layer is made into a 3D layer, for the position parameter, fill in position[0],positionAE common expression analysis,index*2, this is that you keep copying the same layer, the image in the layer will continue to copy in the direction of the z-axis by 2 pixels, and finally form the effect of the type of 3D object.

Exponential expressions, though rarely used, are powerful enough to make images look three-dimensional.

8.x=thisComp.layer("track").transform.position[0]-thisComp.width/2;

x/thisComp.width

Because plug-ins are centered differently, some are centered on composites.

The above is what the expressions commonly used in ae are, Xiaobian believes that some knowledge points may be what we see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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