Adds a swirl effect to the image.
| Control Name | Description |
| X,Y Center: | Center of swirl. |
| Rotation: | The amount of rotation applied. |
| Distortion: | This control allows rotation to be distorted based on the intensity of the image. |
| Expand: | Amount of expansion from the center of the swirl - negative value contracts. |
| Frame Limit: | Indicates whether the effect is limited to the current frame, or if it crosses the frame boundaries. |
| Blob: | Produces a blob at X,Y Center. |
