isTimeVarying

When true, the named property is time varyingラthat is, it has keyframes or an enabled expression. When this attribute is true, the attribute canVaryOverTime

timeSpanDuration

The duration in seconds of the composition to be rendered. The duration is determined by subtracting the start time from the end time. Setting this value is

startTime

The start time of the layer, expressed in composition time seconds .Floating-point value in the range [-10800.0..10800.0] minus or plus three hours ; read/w

value

The value of the named property at the current time.ユ If expressionEnabled is true, returns the evaluated expression value.ユ If there are keyframes, returns

addLight()

Creates a new light layer and adds the LightLayer object to this collection.The new layer honors the Create Layers at Composition Start Time preference.name

timeSpanStart

The time in the composition, in seconds, at which rendering will begin. Setting this value is the same as setting a custom start time in the Render Settings

time

The current time of the item when it is being previewed directly from the Project panel. This value is a number ofseconds. Use the global method timeToCurre

addKey()

Adds a new keyframe or marker to the named property at the specified time and returns the index of the new keyframe.time The time, in seconds, at which to a

outPoint

The out point of the layer, expressed in composition time seconds .Floating-point value in the range [-10800.0..10800.0] minus or plus three hours ; read/wr

callSystem()

Executes a system command, as if you had typed it on the operating systemメs command line. Returns whatever the system outputs in response to the command, if