Lightning reveal guide

Start

The tool opens with two sample pictures, A and B, and the Crimson strike preset. The frame shows picture A; the panel sits beside it.

What you need

• A current browser with WebGL. Chrome, Edge, Firefox and Safari all have it.
• Two pictures of your own, if you want them. Any image the browser can open works; the samples are there until you swap them.

Your first result

1. Open Lightning reveal and tap the picture. A red strike branches out from that point, and picture B opens along its branches until it fills the frame. See strike origin.
2. Tap somewhere else. Every tap grows a new tree, so no two strikes are the same, and this one cracks B back into A.
3. Press a preset under Presets, such as Storm fork, then press Replay at the top of the panel.
4. At the top of the panel, press the Image A and Image B tiles to pick your own two pictures, or drop two at once.
5. Press Save PNG for a still, or Record video to keep one full strike.

Good to know

• A tap during a strike does nothing; wait for it to finish. Replay always starts again at once, with the same tree.
• Every preset keeps Crack A into B on. Turn it off under Sliders for a strike over picture A alone, which stays lit when it ends.
• Moving any control takes the highlight off the preset, and the next strike uses your settings.
• The frame takes the shape of picture A. Picture B is stretched to that shape, so two pictures of the same shape look best.
• On a phone the controls sit in a bar at the bottom of the screen. Tap the bar to open them.