.The warp brushes create strokes that produce a warping effect on image pixels. You can twirl areas of images, contract or expand parts of images, and create many interesting effects.
Note: To reset brush options
to their default values, on the Tool Options palette click the Presets
drop-down list and choose Default, or click the Reset
to Default button .
To use the Warp Brush:
On the Tool palette, choose
the Warp Brush 
. (It is grouped
with the Paint Brush and Airbrush.)
Specify the brush options such as shape, size, and hardness. See Setting Brush and Paint Options.
Note: Unlike the other raster brushes as well as the Art Media brushes, you cannot adjust the Warp brush's Size setting via the keyboard, you must use the Tool Options palette.
For the Strength value, enter a percentage (0 to 100) that specifies how strong the warping effect is. Full strength is 100%; minimum strength is 1%.
Under Warp Modes, choose the type of warp:
Push 
pushes
pixels in the direction of the stroke (similar to smearing paint) in a
time-independent way.
Expand 
pushes pixels away from the center of the brush in a time-dependent
way.
Contract 
pulls pixels into the center of the brush in a time-dependent
way.
Right Twirl 
rotates pixels clockwise around the center of the brush in
a time-dependent way.
Left Twirl 
rotates pixels counter-clockwise around the center of the
brush in a time-dependent way.
Noise 
causes
random movements of pixels under the brush in a time-dependent way.
Iron Out 
removes unapplied warps in a time-independent way.
Unwarp 
removes unapplied warps in a time-dependent way.
Select an Edge mode, a Draft mode quality, and Final apply mode quality.
Do one or both of the following to warp the image:
Click and drag in the image.
For the time-dependent modes, place the cursor at one position and hold down the mouse button to repeat the effect at one area.
To unwarp an area, choose the Iron Out or Unwarp option under Warp Mode, and then click over the area you want to restore. Continue clicking or holding the mouse button down until the original pixel position is restored.
For information on using deformation maps, please see Saving and Loading Deformation Maps.
Painting with the Paint Brush or Airbrush
Setting Brush and Paint Options