
Wheel
Basic algebra is used to create a realistic wheel
animation.
Discussed at: Ranges
of Values
Project files: Macintosh
/ Windows


Interpolation Methods
Simple project to illustrate the differences between
the four interpolation methods provided by After Effects: linear(),
ease(), ease_in() and ease_out().
Discussed at: Interpolation
Methods
Project files: Macintosh
/ Windows


Scroll Project
Simple use of the linear() interpolation method
to emulate an interfacestyle scroll bar.
Discussed at: Interpolation
Methods
Project files: Macintosh
/ Windows


Distance Based Blur and Scale
Expression controlling Fast Blur based on the
proximity of a control layer. Same basic expression also applied
to layer's scale parameter, for a different effect.
Discussed at: Distances
and Lengths
Project files: Macintosh
/ Windows


Trigonometric Functions Demo
Demonstration of the relative values of the three
'core' trigonometric functions: sine, cosine and tangent. Drag a
layer to specify an angle, and see the corresponding trigonometric
values.
Discussed at: Graphs:
sine, cosine and tangent
Project files: Macintosh
/ Windows


Circular Motion
Simple expression showing how to move a layer
in a circle, using basic trigonometry.
Discussed at: Circular
Functions
Project files: Macintosh
/ Windows


Circular Placement
Demonstation of a 'stepandrepeat' technique
using an expression to position layers in a circle.
Discussed at: Circular
Functions
Project files: Macintosh
/ Windows


Spring
Demonstrates of Simple Harmonic Motion, as it
applies to a springlike animation. Variations on this basic animation
illustrate frequency and amplitude, as well as wave addition and
multiplication.
Discussed at: Simple
Harmonic Motion; Frequency
and Amplitude; Adding,
Multiplying Waves
Project files: Macintosh
/ Windows


Point At
Applying the inverse trigonometric function arctangent
to find the angle of a vector (in this case, the vector between
two positions).
Discussed at: Inverse
Functions
Project files: Macintosh
/ Windows
