127 lines
5.4 KiB
Markdown
127 lines
5.4 KiB
Markdown
# S-21 Slide Brief V3
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## Status
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- Slide: `s21`
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- Source shot: `S-21: 那一簇火，指引方向`
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- Version: `s21-v3`
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- Written by: `session-03` child session
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- Worker profile: `video-slide-production`
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- Running mode: `prompt and generate`
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- Review: disabled
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- Overwrite allowed: no
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## Source Basis
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- `projects/2026-06-23-在路上/intake/阶段五-人物一致性单镜.md`
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- `projects/2026-06-23-在路上/visual-system/visual-system.md`
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- `projects/2026-06-23-在路上/visual-system/style/style-prompt-master.md`
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- `projects/2026-06-23-在路上/visual-system/characters/character-reference-registry.md`
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- `projects/2026-06-23-在路上/slides/broad-generation-self-audit-v1.md`
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- `investigations/2026-06-24-s14-reference-capable-generation/reviews/summary-and-rule-implications.md`
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## Slide Function
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Validate side/back dynamic character consistency for the traveler while introducing the first fire as a direction signal.
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The fire does not let him stop. It confirms that he can continue walking.
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## First Read
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Night road and muddy roadside first, then a small restrained fire, then the traveler at the edge of the firelight adjusting the old backpack and continuing forward.
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## Risk Class
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`medium human / side-back dynamic consistency`
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Risk reason:
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- The traveler is visible enough for coat, backpack, stride, boots, and side/back posture to matter.
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- Text-only identity prompting is not sufficient.
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- The prior broad-run `s21-v1-image.png` lacked prompt/reference trace and had posture risk.
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## Reference Plan
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Style:
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- Style module: `D | 夜路小火`
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- Active style reference: `projects/2026-06-23-在路上/intake/imgs/D.夜路篝火型蓝图.png`
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- Role: restrained night-road fire style, small fire signal, mood/palette guardrail
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Character:
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- Primary character reference: `projects/2026-06-23-在路上/visual-system/characters/character-anchor-v2-walk-side-reference-crop-tight.png`
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- Role: `Image 1: identity reference for side/back walking traveler adjusting backpack`
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- Supporting character reference if the slide-agent can load a second visible image: `projects/2026-06-23-在路上/visual-system/characters/character-slice-walk-side-v2-from-anchor.png`
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- Supporting role: walking side silhouette, coat length, backpack placement, stride, and boots
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The actual character reference image must be loaded into visible generation context before host image generation. A local file path in the prompt is traceability only and does not count as loading the image.
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## Visual Requirements
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- 16:9 horizontal cinematic documentary road-film still.
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- Deep blue-gray night or post-dusk roadside.
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- Small real fire near the roadside, preferably to one side or lower part of the frame.
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- Muddy road continues beyond the fire.
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- Firelight touches mud, boots, backpack edge, or coat edge, but does not flood the whole frame.
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- Traveler is side/back to camera, not front-facing, not looking at the viewer.
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- Traveler is adjusting the old backpack naturally, as if preparing to continue.
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- Person scale: about `1/6` to `1/4` of frame.
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- Fire scale: small directional signal, not large campfire.
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## Character Handling
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Keep these from the active character system:
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- middle-aged road-worn male traveler around 50;
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- dark slightly messy hair where visible;
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- dark gray / dark khaki / coal-black long coat;
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- old practical backpack;
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- worn boots;
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- tired but capable body posture.
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Do not replace the active image reference with a text-only character description. If the reference image cannot be made visible to generation context, block generation and write the reason in the return.
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## Composition / Scale
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- Environment first, road second, fire third, traveler fourth.
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- The traveler may be on the edge of the firelight, not centered as a portrait.
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- The action should orient toward the road, not toward staying by the fire.
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- Leave dark road/depth ahead of the traveler.
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## Light / Color / Texture
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- Base: cold wet blue-gray, dark khaki, coal black, earth brown.
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- Emotional accent: restrained warm orange firelight.
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- Texture: real mud, wet road, rough stones, worn fabric, backpack straps.
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- Keep dark depth in the background.
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## Forbidden Drift
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- No camping advertisement.
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- No tent, chairs, cookware, picnic setup, cozy campsite, group gathering, reunion, or victory.
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- No large theatrical bonfire.
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- No portrait MV, hero pose, fashion travel photography, or motivational poster.
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- No text, labels, logos, watermarks, UI, or sci-fi/neon drift.
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- No text-only identity generation for the visible traveler.
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## Acceptance Checklist
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- The traveler can plausibly be the same person as the active character references.
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- Side/back posture, old backpack, long coat, stride, and boots remain stable.
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- The adjustment of the backpack looks natural rather than posed.
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- The fire is small and directional, not a destination.
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- The image reads as "continue forward" rather than "rest at camp."
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- The prompt records `gpt-image-2` Advisor use and the visible-context image role.
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- No `s21-v3-review.md` is written.
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## Prompt Handoff
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`Agent S-21` must read this brief and write only:
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- `projects/2026-06-23-在路上/slides/s21/s21-v3-prompt.md`
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- `projects/2026-06-23-在路上/slides/s21/s21-v3-image.png`
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- `projects/2026-06-23-在路上/tasks/2026-06-24-character-consistency/session-03/returns/s21-v3-slide-agent-return.md`
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The prompt must use the `gpt-image-2` Skill Advisor / host-native workflow, assign the loaded character reference as `Image 1`, use style module `D | 夜路小火`, and suppress review.
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