Global¶
comp(name
)¶
Description
Retrieves another composition by name.
Parameters
|
String |
Type
Comp
footage(name
)¶
Description
Retrieves a footage item by name.
Parameters
|
String |
Type
Footage
thisProject¶
Description
Represents the project which contains the expression.
Type
Project
thisComp¶
Description
Represents the composition containing the expression.
Type
Comp
thisLayer¶
Description
Represents the layer containing the expression. Because thisLayer is the default object, its use is optional. For example, you can start an expression with thisLayer.width or width and get the same result.
Type
Layer, Light, or Camera
thisProperty¶
Description
Represents the property containing the expression. For example, if you write an expression on the Rotation property, you can start an expression with thisProperty to refer to the Rotation property.
Type
Property
time¶
Description
Represents the composition time, in seconds, at which the expression is being evaluated.
Type
Number
colorDepth¶
Description
Type the project color depth value. For example, colorDepth returns 16
when the project color depth is 16 bits per channel.
Type
Number
posterizeTime(updatesPerSecond
)¶
Description
This expression allows you to set the frame rate for a property to be lower than the frame rate of the composition.
The updatesPerSecond
value passed in is the number of times per second the expression should evaluate.
Parameters
|
Number |
Type
Number
Examples
To change a property to a random value 1 time per second:
posterizeTime(1);
random()
To change a 2d property (such as Position or Scale) to a random value 3 times per second:
posterizeTime(3);
var newValue = random(0, 100);
[newValue, newValue];
To change a property to a random value within a specified range, every 12 frames:
var holdFrames = 12;
var minValue = 50;
var maxValue = 100;
posterizeTime(1 / framesToTime(holdFrames));
var newValue = random(minValue, maxValue);
newValue;
value¶
Description
Represents the value at the current time for the property containing the expression.
Type
Number, Array, or String