Confirm That a Required Action Is Missing
Play the entire current clip at normal speed and note starting, intermediate, and ending position, pose, and possession. Identical endpoints may conceal an action followed by a return. Confirm that you are watching the result rather than a reference image or old version.
If the shot calls for walking from desk to window, moving curtains alone do not satisfy it. If the character should stay seated while listening, that pose may be correct. Gaze, voice, or quiet waiting can carry the shot without compulsory standing or gestures.
This page handles a chosen action that never happens. For an action that completes too slowly, use the slow-action guide.
Camera Lock and a Stationary Character Are Different Requirements
| Instruction | What stays or changes |
|---|---|
| Fixed camera | Stable viewpoint and framing; the character may move within it. |
| Preserve identity and clothing | Recognizable face, build, and look; limbs and position may change. |
| Starting composition from image | The first moment, not the entire motion or ending. |
| Preserve geography | Keep doors, windows, and furniture; the route must work within them. |
“Keep everything motionless; she walks naturally” conflicts. Bound preservation to relevant facts instead of removing every constraint. If the shot specifies tracking, do not silently replace it with a lock-off to solve another problem.
Original Repair: Desk, Window, Then a Stop
Original six-second design: a fixed medium-wide shot shows Xu seated at a desk, empty hands at its edge. A passable route leads along the desk’s left side to a window; camera framing includes start, route, and destination. A bell outside prompts her to stand, walk to the window, and stop looking out. No opening the window or dialogue; a notebook stays on the desk. This is a design demonstration without actual input images or generated output.
Ambiguous version:
Use the seated-at-desk image. Keep the character and composition completely unchanged. Curtains drift gently; peaceful atmosphere. She walks naturally to the window.
Unchanged position conflicts with walking, while background movement is more specific.
Revised action:
Start with Xu seated at the desk, empty hands at its edge. After the bell outside, Xu stands from the chair and walks along the clear route on the desk’s left to the window. She stops there and looks outside. Keep the camera fixed for six seconds, showing the route from start to destination. Preserve Xu’s identity and clothing while changing pose and position through this action. Keep the window, desk, chair, and notebook in place; she does not take the notebook. End with Xu standing by the closed window, hands empty. No dialogue, window opening, or added action.
Order, route, stop, and unaffected objects are explicit. A real project still needs a correct input image and reference binding; text does not establish attachment or execution. If the input shows Xu standing by a door, resolve that mismatch instead of treating it as the specified start.
Make the Required Action Work Before Adding More
Actual time depends on distance, gait, and space; six seconds is not guaranteed sufficient. This example establishes a passable route but still needs result review. Do not shorten geography or pass through a desk merely to hit the endpoint.
If dialogue, collecting the notebook, opening the window, and a response are also requested, check which belong to the shot. Resolve incompatible scope or duration in the storyboard rather than packing more words into the prompt. A split retains action and handoff facts; a supplementary shot cannot claim the master covered every process.
Compare Actual Motion After Generation
| Point | Check in this example |
|---|---|
| Start | Seated, empty hands, notebook on desk. |
| Middle | Actual standing and walking along the left route, not teleportation. |
| End | Stops at the window looking out without opening it or taking the notebook. |
| Preservation | Same identity, look, geography, and fixed camera. |
Tie observations to the exact input, prompt, and result. One improvement is not a universal model rule. If action remains absent, use current evidence to distinguish input, description, duration, and production capability before retrying, revising, or selecting another implementation.
FAQ
Does a fixed camera require a fixed character?
It does not follow from the creative requirement. Camera position and framing stay fixed while the subject may follow a route. Repair a separate instruction that freezes the character’s pose.
Should everyone move to avoid a photographic look?
No. Write required subject changes while others may hold. Action, quiet, and ambient motion serve the shot instead of changing plot or relationships merely for activity.
Do it with the skill
Use $short-drama-video-prompts to review character motion with the chosen start, end, duration, reference roles, and actual clip observations. Separate camera lock, identity preservation, and pose change. Repair omitted action or conflicting limits without adding plot, camera movement, or compulsory expressions. Identify an input or duration change when the existing conditions cannot support the action.
Read the method: Starting state, ordered subject motion, and preservation · Fixed camera and moving subject · Action conditions, route, and duration
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