The \clip override tag can be used up to twice in a line without overwriting itself. There are two formats, one which is purely rectangular, and one which is described by the standard ASS vector shape format.
A single line can contain one of each kind, which is useful to allow, for example, gradients that are clipped behind a shape. In this case, the gradient effect is provided by the rectangular clips, and the actual shape clipping is provided by a vector clip.
In the case that both types of clips exist in a line and separate clip tracking data is provided, it is almost guaranteed that the rectangular clips should move with the line and the vector clip should move with the clip tracking data.
The
\clip
override tag can be used up to twice in a line without overwriting itself. There are two formats, one which is purely rectangular, and one which is described by the standard ASS vector shape format.A single line can contain one of each kind, which is useful to allow, for example, gradients that are clipped behind a shape. In this case, the gradient effect is provided by the rectangular clips, and the actual shape clipping is provided by a vector clip.
In the case that both types of clips exist in a line and separate clip tracking data is provided, it is almost guaranteed that the rectangular clips should move with the line and the vector clip should move with the clip tracking data.