Returns the source Comp or source Footage object for the layer. Default time is adjusted to the time in the source. Example: source.layer(1).position

Argument type: name is a String.

After Effects finds the effect by its name in the Effect Controls panel. The name can be the default name or a user-defined name. If there is more than one effect with the same name, the effect closest to the top of the Effect Controls panel is used. Example:

  effect("Fast Blur")("Blurriness")

Argument type: index is a Number.

After Effects finds the effect by its index in the Effect Controls panel, starting at 1 and counting from the top.

Argument type: name is a String.

The name can be the default name or a user-defined name. If there is more than one mask with the same name, the first (topmost) mask is used. Example:

  mask("Mask 1")

Argument type: index is a Number.

After Effects finds the mask by its index in the Timeline panel, starting at 1 and counting from the top.