The Ripple tool allows you to apply a virtual “water drop” effect to an image. The size of the ripples (both their width and height) can be set, as can the “phase”, or the amount of time since the ripple started. Additionally, a radius can be specified if only a portion of the image should be transformed.
Like other distortion tools in the program, five options are provided for dealing with off-canvas pixels (clamp, erase, ignore, reflect, wrap). A dedicated Quality option uses bilinear interpolation to further improve the quality of the final image.
Finally, like all PhotoDemon tools, a dedicated command bar allows you to save and load custom presets, randomize parameters, and reset to default values. Last-used settings are automatically saved and restored, and all changes provide a real-time preview (no click or mouse button release required).