Decide What the Lighting Needs to Tell
Brightness can vary from shot to shot in the same room; each shot should still serve the information being conveyed. Classify the job first, then decide how light or dark the image should be.
| Job | Keep and light |
|---|---|
| Read an expression | What must remain visible: Eyes, the corner of a mouth or a change in breathing; Possible lighting choice: Preserve facial shape; keep the key performance legible on the shadow side |
| See evidence | What must remain visible: An object’s shape, engraving or writing; Possible lighting choice: Create local contrast between the evidence and the tabletop without lighting the entire room |
| Withhold identity for now | What must remain visible: A visible outline without a recognisable face; Possible lighting choice: Place the figure in shadow or silhouette while preserving the established light-source direction |
| Establish space | What must remain visible: Doors, windows, passageways and the characters’ depth; Possible lighting choice: Separate layers of space through differences in brightness or colour |
“Dark, atmospheric lighting” does not tell the audience where to look. Decide the shot’s job first so you can tell whether a darkened face is intentional or a mistake.
A Copyable Structure for Lighting Prompts
Write in this order:
Scene facts: ___ is the actual light source in this shot; time of day / switch state: ___. The key light comes from the ___ side of the frame. Visible result: ___ is brighter; ___ keeps a ___ shadow, but ___ remains legible. Point of attention: Separate ___ from the background using ___. Maintain: the light-source direction and colour relationship established in adjacent shots. Avoid: adding a source with no explanation, or losing ___ in darkness when it must remain readable.
Specify whether you mean screen left or the character’s left. “Side lighting” leaves the direction unclear; “light from the left” does not say how the face, fabric and background should look. Write both the direction and the result so the shot can be executed and checked.
Original Example: A Warranty Slip in a Watch Shop at Night
Scene: After closing, watchmaker Wen Cen checks a warranty slip in her shop. The overhead light is off; only the workbench lamp and reflections from a sign outside remain. The apprentice stands near the door and does not yet know that the signature on the slip is his father’s.
Shot 1 — Make the evidence legible: A medium close shot of Wen Cen and the workbench. Prompt: “A warm bench lamp sits at the lower right of the frame, illuminating the warranty slip and Wen Cen’s fingers. The cheek facing camera has soft light; her eyes are legible. The apprentice by the door falls into cooler, dimmer reflected light, his outline separated from the doorframe; do not emphasise facial detail yet.”
Shot 2 — Shift attention to the apprentice: In the reverse shot, keep the lamp in the same place in the room; do not move it in front of the apprentice. Prompt: “Spill from the bench lamp at the back left of the frame catches the apprentice’s hand as he moves closer to the table. Cool reflections from the street remain along the side of his face. After Wen Cen actually reads the signature aloud, his eyes and the tension around them remain visible as he holds his breath.”
The framing and point of attention change, not the number of lamps in the shop. If the second shot uses even frontal light just to look attractive, both the spatial facts and the timing of the reveal break.
Left and right in these prompts mean screen direction. Confirm the reverse shot's direction from the actual camera and blocking; back left is not a universal reverse-shot rule. A prompt states an intention, not a guaranteed generation result. Review the shots together for the same lamp position, the apprentice's move to the table, and readable required text and reaction. Fix an incorrect source direction upstream.
Complete the Two Shots: Read, Respond, Then Inspect
Continue the watch-shop example. The author chooses the signature name Zhou Chang’an, known to the apprentice as his father’s name. Wen manages the slip and can let him inspect it at the desk. A matching name does not establish authorship. This completes an original demonstration, not generated output.
Shot one: evidence and actual reading.
The warm lamp remains at its bench position. Frame the signature line and Wen’s hand. Pointing to it, she reads, “Zhou Chang’an.” The apprentice is still by the door: he hears the name without seeing the handwriting. Do not give him the document early or add a lamp lighting the whole shop.
Shot two: response in the chosen reverse.
At the name, the apprentice stops his step toward the bench. “That’s my father’s name. May I see the signature?” Wen turns the slip toward him and uses the bench lamp to illuminate its line. He finishes approaching, sees the handwriting, and says, “It looks like his. I’d like to check where this slip came from.” Wen retains management of the document; it is not handed over for him to take away.
Project the same lamp and cool street reflection through the actual reverse-shot camera. Keep eyes, speech, and the stopped step readable on the shadowed side; after approach, lamp spill can reach hand and paper. Screen directions follow the camera, not a universal back-left formula. Illuminating the slip uses the existing lamp without adding sources.
| Information | Present limit |
|---|---|
| Heard name | Knows the signature name, not its handwriting. |
| Asked to inspect | A request until Wen actually turns and shows the slip. |
| Saw and replied | Judges similarity and plans to check origin; authenticity is not established. |
| End of pair | At the bench; document remains managed by Wen, with bounded knowledge. |
Lighting makes the actual reading, reply, and showing legible without making a judgment for the character. Review dialogue, displayed text, and action in the result; explicit wording does not establish execution.
How to Fix Common Lighting-Prompt Failures
| Prompt | Issue and fix |
|---|---|
| Cinematic lighting, premium texture | Why it fails: Gives no source, direction or visible result; Revision: Name the actual source and the surface, face or evidence that must be readable |
| Everyone gets a rim light | Why it fails: Treats one effect as a default setting; Revision: Add it only when separation from the background is needed, and state where the light comes from |
| Use exactly the same brightness in every shot | Why it fails: Shot size and viewpoint still change perceived brightness; Revision: Preserve source relationships and colour logic; compare corresponding faces, clothing and walls |
| The reference board is bright, so light the night scene brightly too | Why it fails: Reference-character lighting exists to show design clearly; Revision: Specify that the reference controls identity, while the shot’s lighting follows the scene facts |
| Darken every face for mystery | Why it fails: Also hides reactions that need to be read; Revision: Specify whose identity is withheld and which performance must remain visible |
Four Steps from Storyboard to Review
- Circle the main face, action, or evidence the shot needs to convey; related reactions or spatial information may remain.
- List the existing light sources and switch states from the scene description; do not invent a lamp at the last minute.
- State direction and visible result, then how the subject separates from the background.
- Review adjacent shots together. If light direction or the story’s lighting state is wrong, fix it upstream. Reserve post-production correction for minor exposure or white-balance differences.
When generating a prompt, combine the lighting sentence with the character, scene and action requirements. Do not let a string of lighting terms obscure the shot’s purpose.
FAQ
Do lighting prompts need specific technical settings?
Not unless the production has already established technical settings. Start with observable light sources, direction, contrast and what must remain legible. Add fixture or camera settings only when the project provides evidence for them.
Must the lighting in a character reference image stay the same?
No. Even lighting on a reference board is usually there to show identity and design clearly. Light the actual shot according to the scene facts while preserving the character features that need to remain recognisable.
Do it with the skill
In Claude Code, say: “Use /short-drama-storyboard to design lighting for these shots. First list what each shot must reveal or withhold, then specify the actual light source, direction in frame, visible result and continuity with adjacent shots.” In Codex, use $short-drama-storyboard.
Read the method: Lighting design · Shot responsibilities and reveals · Actual dialogue and cross-shot information
About Drama SkillsThe short-drama-storyboard skill on GitHub