flova-cinematic-lighting-planner

name	flova-cinematic-lighting-planner
description	Use when 用户要根据剧本、参考图或视频规划电影布光、光型、色温、情绪光影、多人光向分配、运镜降级策略或镜头级 lighting prompt。（素材生成场景：为单镜头/单图生成光型、色温、光向的 lighting prompt 片段。）

Cinematic Lighting Planner

Mission

用于电影布光规划：为任何创作流程提供镜头级光型、色温、光向、多角色受光关系和运镜降级策略。

This is usually a module inside another production skill. It should not own the whole video pipeline unless the user's main request is lighting planning.

JarvisHub Execution Model

• 主 Agent 负责编排：读取画布事实、整理任务 brief、按阶段同步 TodoWrite 进度，并把已确认的文本成果写入画布；媒体生成、等待、拼接和评审交给具备相应能力的执行 agent 或当前可用工具。TodoWrite 不是画布写入前置条件。
• 图像、视频和拼接交给具备媒体能力的执行 agent：brief 给出稳定输出身份、用途、真实参考 URL 和关键约束；需要下游引用时必须等待真实 imageUrl / videoUrl，不能把提交态当完成态。
• 多模态验收交给 critic sub-agent：只读取真实媒体并评审，不生成、不补素材。
• 当前已知 canvas 工具集没有通用音频生成、音频驱动口型、末帧抽取或视频直改工具；旁白、BGM、字幕、末帧承接和精准 lip sync 只能作为后期合成计划或 blocked 项，除非本轮工具列表明确暴露对应能力。

When To Use

Use this skill for:

• cinematic lighting plan,
• lighting style from story or image,
• shot-by-shot light design,
• improving cinematic mood,
• multi-character light direction,
• Tyndall/volumetric light,
• noir side light, backlight, top light, under light,
• camera motion fallback when model cannot execute movement.

Canvas-Native Boundary

Follow the JarvisHub Execution Model. Use only model choices exposed by this turn's tool list. This skill outputs planning constraints and prompt fragments that other image/video skills can use.

Intake

Collect:

• input type: text script, image, video, or reference image + background,
• aspect ratio if generating video,
• narrative beat or shot list,
• mood,
• existing light condition,
• whether user wants manual light selection or AI recommendation.

Workflow

1. Analyze scene/story/reference.
2. Build or accept shot list.
3. Select lighting mode: manual or AI recommended.
4. Produce per-shot lighting plan.
5. Inject prompt fragments into image/video prompts.
6. QA generated result and simplify camera/light if needed.

Pause after lighting recommendation if the user asked to approve the look.

Light Types

Light Type	Use For	Prompt Fragment
backlight	entrances, farewell, silhouette, mystery	strong backlight, glowing rim around hair and shoulders, face partly in shadow
cold top light	interrogation, pressure, isolation	harsh cool overhead light, shadows under brow and cheekbones, clinical blue-white tone
Tyndall/volumetric	hope, sacred reveal, dusty room, turn	visible volumetric light shafts through haze, particles suspended in warm beam
under light	menace, uncanny, villain, suspense	low source uplight, inverted shadows across face, dim amber or sickly green cast
side light	character study, tension, realism	strong side light with sharp falloff, one side lit and one side in deep shadow
hard light	action, conflict, hot daylight	direct undiffused source, crisp shadows, high specular highlights
soft light	warmth, memory, intimacy, daily life	large diffused source, feathered shadows, lifted contrast, warm soft tone

Narrative Recommendation

Default by beat:

• opening: backlight, soft light, or Tyndall.
• development: side light, hard light, or cold top light.
• turn: Tyndall for hope/reversal, under light for threat, hard light for conflict.
• ending: soft light, backlight, or Tyndall.

When scene physics conflicts with mood, preserve plausibility first. For example, do not force warm sunset backlight into a sealed fluorescent office unless a practical source is present.

Multi-Character Lighting

For conflict:

• opposing light directions,
• warmer light on sympathetic side and cooler light on opposing side when useful,
• no more than two major light systems in one shot.

For alliance/intimacy:

• shared key light,
• main subject slightly brighter,
• secondary subject 50-70% intensity,
• background in ambient shadow.

For three or more:

• choose one lighting protagonist,
• reduce others by distance and importance,
• do not give every character a separate dramatic light.

Shot Lighting Fields

Each shot should include:

• shot_id,
• story_beat,
• mood,
• light_type,
• intensity,
• color_temperature,
• source_position,
• subject_light_priority,
• background_light,
• prompt_fragment,
• avoid.

Camera Motion Fallback

If generated video fails to follow camera movement:

1. Retry with simpler camera wording.
2. Replace camera motion with subject motion when possible.
3. Simplify to pan/push/follow with one direction.
4. Fall back to locked-off shot and preserve lighting.
5. Only switch model/tool with user confirmation if the harness exposes alternatives.

Do not sacrifice subject stability and lighting just to keep a complex camera move.

Prompt Fragments

Backlight:

strong backlight from behind the subject, warm rim light tracing the silhouette, hair and shoulder halo, face partly in deep shadow, high contrast

Cold top light:

harsh cool overhead light, deep shadows under the brow and cheekbones, desaturated blue-grey skin tone, no warm fill

Tyndall:

visible volumetric light shafts cutting through dusty air, warm particles suspended in the beam, subject isolated inside the light cone

Side light:

strong single-source side light from camera-left, one half of the face illuminated, opposite side falls into deep shadow

Soft light:

large diffused warm source, gentle feathered shadows, lifted contrast, intimate natural skin tone

QA

Check:

• light source is physically plausible,
• color temperature fits scene/mood,
• main subject has clear light priority,
• multi-character light does not conflict,
• prompt fragment matches storyboard,
• generated output did not flatten into even light,
• camera fallback did not alter story meaning.