Adobe 12040118 - After Effects Standard Using Manual page 52

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Description
The source attribute is the source AVItem for this layer.
The value of the source will be null in a Text layer.
Type
AVItem; read-only.
AVLayer threeDLayer attribute
app.project.ite m(index). t h re e D L ayer
Description
The threeDLayer attribute is true if this is a 3D layer.
Type
Boolean; read/write.
AVLayer timeRemapEnabled attribute
app.project.ite m(index). timeRe ma pE n a b le d
Description
The timeRemapEnabled attribute is true if time remapping is enabled on this layer.
Type
Boolean; read/write.
AVLayer trackMatteType attribute
app.project.ite m(index). t r ackMatteTy p e
Description
If this layer has a track matte, the trackMatteType specifies the way the track matte will be applied.
Type
Enumerated type (read/write); one of the following:
Tr ackMatteTy p e.ALPHA
Tr ackMatteTy p e.ALPHA_INVERTED
Tr ackMatteTy p e.LUMA
Tr ackMatteTy p e.LUMA_INVERTED
Tr ackMatteTy p e.NO_TRACK_MAT TE
AVLayer width attribute
app.project.ite m(index). w idth
Description
The width attribute is the width of the layer, in pixels.
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