About the Envelope Tool

The Envelope tool lets you deform and warp part of a drawing using a grid envelope and Bezier handles. You can warp images to make them look like they are reflected in water or in a deformable mirror.

Envelope Tool

NOTE If you use the Envelope tool on a textured brush stroke, it is will deform its texture to fit the new shape of the brush stroke. Keep in mind that this will resample the texture, which is liable to make it lose quality.
NOTE To learn more about the Envelope tool options, see Envelope Tool Properties.