Halftone
Channel screens
One screen per channel, each at its own angle.
Controls
- cell
- Pitch of all three screens in source pixels. The picture lives in the difference between them
- red angle
- Angle of the red screen. Bring two channels to the same angle and colour moiré flares between them
- green angle
- Angle of the green screen. The defaults are the press angles, chosen a century ago to keep the screens from clashing
- blue angle
- Angle of the blue screen. Spread the three apart for a quiet rosette, gather them for moiré
- shape
- Dots stop growing once four neighbours meet; lines carry on to a solid fill. Two different kinds of shadow
- contrast
- A number from -1 to 1, 0 by default.
- paper
- The three screens lay down light, not ink: where none prints you see paper, where all three do it glows white