Define the shot before selecting a model
Write the action in one sentence and specify what the audience must understand at its end. Record the camera's side of the action, the subject's movement, light direction, and a start and end frame. These constraints give a reference image a job. Without them, it is easy to generate many attractive variants that cannot be cut together.
Separate identity, costume, location and style. A single reference may carry all four, but a production may need to vary them independently. If the character must remain the same while light and room change, use a character reference and a separate location description. If the costume is story critical, include it in the continuity ledger rather than trusting a general style reference.
What the documentation actually says
Runway's Gen-4 References guide describes generating new images from one or several inputs and recommends clear, evenly lit character photographs. It offers examples of consistent characters and scenes. This documents a tool's intended workflow, not a guarantee that a specific shot will preserve a face, hand, prop or eyeline. Each additional transformation gives the production another element to inspect.
Make a contact sheet of selected and rejected generations. Note what changed in each attempt. Keep input ownership and consent beside the file; a photograph's suitability as a reference is a visual question, while permission to use it is a separate one. Do not use a person's likeness because the system can approximate it.
Test the cut, not the thumbnail
Take three planned shots: entrance, action, reaction. Place rough outputs on a timeline with the intended sound cue. Watch without pausing. Check screen direction, position of props, expression, lighting, and whether the reaction belongs to the action. If a reference helps one shot but breaks the next, reduce the variable count or replace the generated element with a controllable photographed or 3D layer.
The deliverable is a brief, reference set, contact sheet and cut with written failure notes. No tool comparison score is implied. Model behaviour and terms are time sensitive; repeat the test on the production's actual version before committing resources.
Sources & context
- Runway · Creating with Gen-4 Image References (product documentation checked 16 Sep 2026)
- Screen Method · Design the sequence before the prompt (related editorial method)
This is a planning procedure; Screen Method did not run a comparative model test.