Geometry
Warp
Wave distortion of the grid — the frame ripples.
Controls
- amplitude
- How far a row travels at the crest. The sign flips the wave over, which is not the same as sliding it half a period
- wavelength
- Length of one wave in source pixels. Short is ripple on water, long is a single bend across the whole frame
- direction
- One of: horizontal, vertical, both.
- phase
- Slides the wave along. A full turn brings it back to where it started
- falloff
- Positive fades the wave towards the edges, negative towards the middle. At zero it is even everywhere
- edge
- What is taken from beyond the frame: the last pixel smeared, the picture mirrored, or the opposite edge wrapped around
- contrast
- A number from -1 to 1, 0 by default.