Warper

Warps an image or sequence using source and destination shapes. See Warping [Compositing].

Requires an Input (Any).

Produces an Output (Any).

Edit Mode	Controls the type of shape you can select, create, or edit: Source Shapes allows you to work with source shapes. Destination Shapes allows you to work with destination shapes. Correspondence Points allows you to modify the correspondence points of the selected pairs of source and destination shapes. Correspondence points control how the source shape warps into the destination shape. When this option is active, the Offset and Density controls are available. Note that when you create a source shape, the corresponding destination shape is created automatically and vice versa.
Offset	Shifts the correspondence points. This has the effect of rotating the warped portion of the image. This option is available only when Edit Mode is set to Correspondence Points.
Density	Controls the number of correspondence points. More point provide smoother warps but increase computation time and memory. Each increment corresponds to 5 correspondence points. This option is available only when Edit Mode is set to Correspondence Points.
Shape Tools, Key Points	These tools allow you to select, create, and edit shapes. The procedures are the same as for working with masks. See Mask Options.

Options

Quality	Controls the quality, speed, and memory requirements of the rendering. Lower quality images render faster and use less memory.
Sliding On	Allows pixels at the image borders to move. This is useful to prevent extreme stretching when warping shapes near the edges. If Extend On is off, empty border areas acquire the Fill Color.
Extend On	Samples the area around border pixels that have become empty (with Slide On) and uses that color instead of the Fill Color.
Fill Color	Defines the color used outside of the Source Rectangle, as well as for empty border areas (with Slide On on and Extend On off).
Draw Shapes in Alpha Channel	Draws the destination shapes in the output alpha channel. If this option is off, the alpha channel is warped in the same way as the RGB channels.
Use Z Buffer	Smooths uneven edges that may occur where multiple points on a source shape overlap at a destination shape.

Source Rectangle

Use Left, Bottom, Right, and Top to define a cropped area to process. Pixels outside this area use the Fill color defined in Options.

Use Source Rectangle's animation icon to set or remove keys for all four values at once.

Controls this operator's Mask Options.

Controls this operator's Output Options.