Motion
Short, uneven cascades
Stagger three to seven items inside half a second, on an irregular beat.
Takeaways
- 3 to 7 items, about 0.5 s in total.
- Offsets on a curve, never an even stagger.
- A big visible cascade is a set piece, once.
What it means
A cascade ties items together as a group. Too long and it becomes a slow queue; too regular and it reads as a metronome. Offsets that fall on a curve, a few frames apart, feel assembled rather than generated.
In a RasanAI film
Cascades span 0.5 seconds for three to seven items; a set piece may run 1.2 seconds. Offsets fall on a curve with a frame of jitter, and durations vary by about 10 percent. A visible cascade of five or more is a once-per-film set piece.
Origins and sources
Disney's overlapping action and follow-through. The span and offsets are measured from real launch films.