Lens FX will generate various distortion effects.
Editor: This filter will generate various distortion effects.
Distortion Type: This defines the type of distortion to apply to your image.
Sub-Sampling: Specifies what type of pixel sub-sampling to use. (Nearest Neighbor being fastest, Bicubic being best.)
Realtime: Applies all effects (in realtime) on mouse drag instead of on mouse release. you can free download Lens FX 1.1 now.