Transition craft: six transitions timed the way editors cut

Six transitions that hide the cut at the moment of peak coverage and land that peak on the beat. Zooms run in log space, shakes decay, and the settle carries the length rather than the effect.

Gates

• Beat first. Get the beat grid (or the cut points) before timing anything; transitions peak on the downbeat or one frame before it.
• Your own media. Photos and clips in collages and galleries must be the person's own or licensed.
• Seek-safe. Every value is a function of timeline time; randomness is seeded by frame. No Date.now(), requestAnimationFrame or unseeded Math.random().
• No credits here. These templates render locally for free. Generated footage, voice or music is the varg-ai skill: call estimate_cost and wait for the person's approval before any generation.

Pick a template

6 templates, 29 presets. Each reference file has the same sections: how the pros do it (every rule cited), presets, timing and numbers, how to build it, mistakes that look amateur, sources. Each JSON file holds the same presets as machine-readable values.