Warping changes the shape of the image in a clip. When you warp an image, you start by drawing a mesh over the region of the image you want to warp. You then modify the mesh over the image at specific keyframes to distort the image.
To create the warp, define a source mesh and a destination mesh for the front clip. The source mesh defines the area of the image that you want to warp; it outlines the shape of the non-distorted image in each frame of the clip. The destination mesh defines what the warped image looks like; it outlines the shape of the distorted image in each frame of the clip. Typically, you set the destination mesh at several frames of the clip. The Warper generates a smooth transition between frames.
The general steps for warping: