89 lines
4.1 KiB
Markdown
89 lines
4.1 KiB
Markdown
# Summary And Rule Implications
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## Status
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- Document status: investigation conclusion with user decision recorded.
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- Rule changes: promoted to `AGENTS.md` and `VIDEO_WORKBENCH.md`.
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- User decision date: 2026-06-24.
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## User Decision Conclusion
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This investigation established the working Video Workbench success channel for image-reference generation:
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1. Generate the prompt/spec with the `gpt-image-2` Skill Advisor workflow.
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2. Load the real reference image into the conversation context before generation.
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3. Use host `image_gen` with the loaded image assigned an explicit role such as `Image 1`.
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This is the default channel for current and future Video Workbench image generation. API/Garden image generation is not the normal path.
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Both reference strategies tested here worked:
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- the full character anchor board preserved strong character consistency;
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- the side crop also preserved strong character consistency;
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- near / identity-heavy shots should prioritize crop references;
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- distant / landscape-led shots should prioritize the accepted anchor board or project-approved distant reference.
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For `在路上`, most shots are landscape, aerial, or distant. The project does not require high-fidelity portrait likeness in most frames; it primarily needs character consistency. The current crop set, which was derived from the accepted character anchor board and made transparent, is sufficient by default.
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For future projects with higher identity requirements and many close shots, create higher-resolution crop references through image-to-image from the accepted anchor board before production.
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## What This Investigation Proves
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The host built-in image generation path can use an image made visible in the conversation context as a reference input for identity-sensitive generation.
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This was not a pure text-to-image run:
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- Arm A loaded the master anchor board before generation.
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- Arm B loaded the side identity crop before generation.
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- Both prompts explicitly assigned the loaded image as `Image 1`.
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- Both outputs preserved concrete visual traits that were present in the loaded reference images: black rectangular glasses, dark messy hair, fuller beard / stubble, dark long coat, and backpack.
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## Boundary
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This investigation does not establish an API/Garden workflow, because:
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- `gpt-image-2` Garden mode is not enabled;
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- no `OPENAI_API_KEY` is present;
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- the built-in `image_gen` tool schema exposes only a text prompt parameter.
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The validated route should be named precisely:
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```text
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host built-in reference-by-visible-context
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```
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Do not describe the default workflow as:
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```text
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Garden image-to-image
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explicit file-path upload
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API multipart image edit
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```
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## Operating Rule
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For Video Workbench use, the built-in route is the default for reference-capable generation if the prompt workflow records the evidence:
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1. load the exact reference image into the conversation context before generation;
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2. state the image's role in the prompt as `Image 1`, `Image 2`, etc.;
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3. record the input file path, output file path, and evidence caveat in `generation-log.md` or per-shot prompt/review;
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4. do not count a run as reference-capable if the prompt merely names a local path without loading the image.
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Reference selection defaults:
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| Shot type | Recommended primary reference |
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| --- | --- |
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| Near shot, face, half-profile, expression, identity-heavy frame | Matching crop reference first |
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| Distant shot, landscape-led frame, aerial / wide scene, low identity burden | Accepted character anchor board or project-approved distant reference first |
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| Medium action, back view, walking pose, prop continuity | Matching crop, transparent slice, or anchor board according to visible direction |
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| High identity fidelity project with many close shots | Generate higher-resolution crop references through image-to-image from the accepted anchor board before production |
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## Rule Promotion
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Promoted to:
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- `AGENTS.md`
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- `VIDEO_WORKBENCH.md`
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Project-specific registries may add narrower reference selection tables when a project needs them, but the global path and near/distant reference-choice defaults now live in the workspace rules.
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