Tuesday, 17 January 2012

Aftereffects: Session 4

We're going to be looking purely at text, and what we can do with it, created directly within Aftereffects.

The anchor point is originally placed at the bottom left of the text.  It can be altered under the transform menu or by simply pressing 'Y' on the keyboard to change the position with the mouse.

The source text changes the format & copy within the text over time.  When making a keyframe, the keyframe is square.  This means that this is a hold keyframe that doesn't change form smoothly over time, just over the changes of keyframe.








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When we animate the text, expanding range selector gives the start point, end point and more advanced options.
By adjusting the start and the end point, the animation slowly moves each letter from the original point to the finalised position.
The offset just moves the start and end points throughout the length of the type,  so it can create a wave effect when dealing with position for example.

But then there's some advanced options...

Unit: Can change from percentage to index, which sets the units to an absolute number of characters.  This is incredibly useful when selecting a specific point.
Based On: Can animate characters, characters without spacing, whole words or lines.
Mode: Adjustments to how the animation moves.
Amount: Think of it as opacity for animation: how much it shows.
Shape:  Choose a shape in which an animation will form to.
Ease High & Low:  Not looked at yet, but to do with keyframe interpolation, acceleration and deceleration.
Smoothness: 0% provides no movement from other characters.
Randomise Order:  Puts the sequence in an unpredictable pattern.










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On 'Animator 1' you can add other variables such as tracking or colour.  The options remain pretty much the same, here are examples of experimenting with this:





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A path can also be created for the text to follow, by using the pen tool when the layer is selected.  By adjusting the first and second margin, movement on the line can be created with the use of keyframes, demonstrated below:



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