![]() This is termed tactile-kinesthetic aftereffect. ![]() If you pass your hand over a curved surface a number of times and then stroke a straight surface it will appear to be curved in the opposite direction. Aftereffects have been demonstrated in sense modalities other than vision. There is conclusive evidence that figural aftereffects are a function of a brain mechanism rather than a product of activity occurring in the retina: when the first figure is viewed by one eye and the second viewed by the other, the effect is still obtained. The figure then appears to be different because a different part of the brain decodes the message. One theory holds that the brain area which deals with the original stimulus becomes “satiated” or “fatigued” through prolonged inspection, and another area comes into play. Under certain conditions the effects of prolonged exposure to the first stimulus have lasted for several months.Figural aftereffects are not easy to explain. The extent of figural aftereffects increases with the amount of exposure to the first figure, beginning with an exposure of two to five seconds anTEShing a maximum after about one minute. If you stare at a curved line for several moments it will tend to appear less curved than it was at first and if you look at a straight line immediately afterward, it will appear to be curved in the direction opposite to the original curved line (Gibson, 1933). A single experiment will illustrate both of these phenomena. Play around with it! I’m sure you’ll end up wondering how you managed without it.There are two principal types of aftereffect: the apparent distortion of a figure following prolonged inspection, and the effect of inspection of one figure on the perception of a subsequent figure. There’s still so much more that you can learn about the pick whip, but even the fundamentals I’ve described here can be enormously beneficial. Now, you can parent any of the individual transform properties to any layer you want. You can actually parent any of the individual transform properties between any layers you want to. If you drag that from one layer to the opacity of the layer above, you can now effect the opacity of both layers by just controlling the one. You can see in the screenshot below that there’s also a pick whip icon on each layer next to the opacity property. There’s a solution to this and it’s fairly simple. However, in the example I’ve just used here, you cannot control the opacity value of these layers using the null object. Opacity Here, you can’t control the opacity value of the layers using the null object. One thing to note is that the layers will rotate around the anchor point of the null object, not their own anchor points. Once you have done this, you can simply animate all the layers using the null, as shown in the screenshot below. If you select all the layers you wish to animate, you can drag the pick whip from the top layer to the null object, and it’ll parent all of them to it. Rather than animate them all individually, you can simply parent them to a null object and add the keyframes to that layer. In the screenshot below, you can see that I’ve got multiple layers that I want to animate in unison. The pick whip really comes into its own, though, when you start working on more complex projects. The shape layer is now moving with the text layer. Aftereffects generally occur after a prolonged exposure (adaptation) to a first stimulus possessing one given property followed by presentation of a stimulus bearing a neutral value of that property. The screenshot below shows me parenting the shape layer to the text layer using the pick whip, resulting in the shape now moving with the text. When you have parented a layer to another, it’ll take on any changes in scale, position, and rotation that the layer it’s parented to goes through. There’s a pick whip icon located on each layer, as shown below. ![]() It allows you to “parent” one layer to another. The text has moved while the shape layer has remained. If you have finessed your keyframes on your text layer using the graph editor, it will be quite laborious to create the exact same keyframes on the shape layer. You can see in the screenshot below that the text has moved without the shape layer. Let’s explore what it does and how to use it.Īll too often, you create a nice animation on a text layer using keyframes, before realizing that you want a shape to move with the text so that the shape and text move together. The Pick Whip is a motion graphics game-changing tool in Adobe After Effects.
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