Cloth and hair motion that holds together
Hair and fabric are where temporal coherence breaks first. Prompt cues for weight and stiffness, shot choices that hide it, and when to mask and regenerate.
Hair and fabric are where temporal coherence breaks first. Prompt cues for weight and stiffness, shot choices that hide it, and when to mask and regenerate.
Subject speed breaks video models before camera speed does. A per-frame overlap test that predicts limb doubling, plus the shot design that buys real headroom.
Pours, flame and volumetric smoke fail in three different ways. How to rank them, and a rule for what to generate, what to composite, and what to cut.
Feet skate because ground contact is never specified. Prompt phrasing for footfall, weight and surface, plus the shot sizes where walking actually holds up.
Text a video model draws inside the frame has to be right 200 times, not once. The size threshold where letterforms break, and the clean-plate rule.
Mirrors, windows and puddles rarely agree with the room in front of them. How to compose around reflections, prompt them when they matter, and repair them.
Background people break more shots than hero subjects. The pixel budget that predicts failure, plus staging tactics for street, stadium and venue shots.