8.13. Ripple
| 8. Distort Filters |

### 8.13. Ripple

#### 8.13.1. Overview

Figure 16.136. “Ripple” filter example

Original image

Filter “Ripple” applied

You can find this filter through Filters → Distotrts → Ripple.

It displaces the pixels of the active layer or selection to waves or ripples reminding a reflection on disturbed water.

#### 8.13.2. Options

Figure 16.137. “Ripple” filter options

Preview

  The result of your settings will appear in the Preview without affecting the image until you click on OK.

Options
  Antialiasing

    Antialiasing: This improves the scaled look the image borders may have.

  Retain Tileability

    Retain Tileability: This preserves the seamless properties if your image is a tile pattern.

Orientation

  That's the Horizontal or Vertical direction of waves.

Edges

  Because ripples cause pixel displacement, some pixels may be missing on the image sides:

  - With Wrap, pixels going out one side will come back on the other side, replacing so the missing pixels.

  - With Smear, the adjacent pixels will spread out to replace the mixing pixels.

  - With Black, the missing pixels will be replaced by black pixels.

Wave Type

  These options are self-explanatory

  - Sawtooth

  - Sine

Period

  The Period is related to wavelength (0-200 pixels)

Amplitude

  The Amplitude is related to wave height (0-200 pixels).

8.12. Polar Coords |  | 8.14. Shift