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README
- Random 50/50 rendering mode per run (ultra-realistic or standard comic style)
- --no-ultra-realistic flag forces standard comic style when set
- renderingRequirement const centralised and applied to all image prompts via DRY renderReq() method
- Log rendering mode chosen at generation time
- Update README: correct page count (10), output filenames, all --story flags documented
- Bump version to 0.13.0
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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vocabulary/theme files
- Add renderingRequirement const applied to all prompts (cover, story pages, back cover, gallery)
- Write <slug>_comic_vocabulary.txt with vocabulary words and story text for learning
- Write <slug>_theme.txt recording the --story-theme used for easy reproduction
- Enforce adult (18+) characters in generator to avoid content policy blocks on revealing clothing
- Add cover/back cover retry logic (same pageMaxRetries as story pages)
- Bump version to 0.12.0
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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TTS chunks
- Increase story pages from 3 to 5 (10 total with cover/gallery/back)
- Add 3 text-free gallery pages with close-up heroine poses before back cover
- Add retry logic to cover and back cover generation (same as story pages)
- Enforce adult (18+) characters in generator prompt to avoid content policy blocks
- Reduce TTS chunk size from 200 to 100 words to stay under 1-minute quality threshold
- Increase TTS timeout from 2 to 3 minutes to avoid spurious deadline exceeded errors
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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subfolder, 16:9
- Iterative image chaining: each page receives cover + prev page as pixel-level
reference (multimodal) so the model copies appearance directly, not from text alone
- --story-theme flag overrides random genre pick per run
- Gemini now generates a short comic title (---COMIC TITLE--- separator) used as
the output slug; all files named <slug>_cover.png, <slug>_page_1.png, etc.
- All comic output stored under comics/<slug>/ subdirectory
- Aspect ratio changed to 16:9 (ThinkPad X1 Gen 9 screen fit; 16:10 not supported)
- Bulgarian language rule moved to top of every prompt for stronger compliance
- Dynamic story-specific cover masthead + publisher logo badge matching story genre
- --story-theme "a thrilling space..." forces genre without touching random pool
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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- buildConclusion() calls gemini-2.5-flash (same SystemInstruction pattern)
to write a 3-4 sentence Bulgarian cinematic epilogue (~40-60 words, ~15-30s)
that reflects the story's emotion rather than recapping the plot
- narrateConclusion() narrates it as a separate TTS chunk and appends it to
the chunk list before final concatenation; failure is non-fatal
- Narrator struct now stores apiKey for the text-generation call
- Single-chunk path simplified: Rename instead of unnecessary concatenation
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Gemini TTS voice quality degrades noticeably over long single-call texts.
Split the story into ~200-word paragraph-aligned chunks, narrate each
separately, then concatenate with ffmpeg's concat demuxer (copy codec,
no re-encoding). Short stories (single chunk) still use one call.
Temp files are written to a OS temp dir and cleaned up automatically.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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- Bible prompt now requires EXACT age for each character (e.g. "8-year-old girl")
and explicitly states age must not change across any page, cover, or back cover
- Story page consistency rules now call out AGE APPEARANCE alongside face and clothing
- Cover prompt: "Do NOT invent new characters or use generic stand-ins" — only
story characters with matching age/face/clothing may appear
- Back cover prompt: same restriction, plus "same age, same face, same clothing,
same animals as in the interior pages"
- Both covers updated with: "a child must never look older or younger than defined"
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Cover/back improvements:
- Front cover: MANDATORY TITLE instruction makes 'BULGARIAN VOCABULARY ADVENTURE'
dominate the top 20% of the cover in bold masthead lettering
- Back cover: Gemini generates a 2-3 sentence English marketing blurb that is
embedded verbatim in the blurb-box instruction (italic display type)
- Both covers now specify Silver-Age / Bronze-Age comic production layout
(price box, barcode strip, cover lines)
Animal consistency:
- Character bible prompt now treats animals as named characters — specifies exact
breed, fur colour/pattern, markings, and eye colour; instructs model never to
substitute a generic animal or change markings between pages
- Story page prompts add explicit animal consistency rule alongside human rules
Bible/blurb reliability:
- Switch helper calls to same SystemInstruction + user-content pattern that the
story generator uses successfully with gemini-2.5-flash
- Increase MaxOutputTokens to 8192 and timeout to 90s to match story generator
- Retry pause extended to 15s for free-tier RPM recovery between rapid calls
- Removed deprecated gemini-2.0-flash model references
PDF generation (new internal/story/pdf.go):
- AssembleComicPDF() combines all 5 images into comic.pdf via ImageMagick convert
- Pages are in reading order: cover → story pages → back cover
- Non-fatal: warns if ImageMagick is not installed, never blocks the pipeline
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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- Add comic_cover.png and comic_back.png flanking the 3 story pages
- Switch story pages to 3:4 portrait aspect ratio for standard comic proportions
- Request 9-panel (3×3) grid layout in every story page prompt
- Generate a Gemini character bible before image generation to lock characters,
clothing, and setting across all 5 pages — clothing only changes if the story
explicitly directs it
- Fix nil-writer panic in cover warning path
- Fix undefined comicPageCount reference in runner.go
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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- Generate a Gemini character bible before panel image generation
- Bible describes each character (name, age, hair, eyes, clothing) and
setting; it is prepended to every panel prompt to lock visual consistency
- Revert to 3 separate comic_page_N.png files (4:3 aspect ratio)
- bibleMaxTokens=2048 to avoid Gemini 2.5 Flash thinking-token starvation
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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narration
- Replace 3 separate comic pages with one 9:16 tall comic_strip.png
- Prompt explicitly requests 3 vertically stacked panels with consistent characters
- Add AspectRatio field to SearchOptions; NanoBanana uses it when set
- Make cinematic narration instruction more dramatic (movie trailer narrator style)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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- Generates a ~500-word Bulgarian vocabulary story from a batch file
- Produces 3 comic pages via NanoBanana (90% ultra-realistic style)
- Art style chosen randomly per run; override with --story-style
- Cinematic Gemini TTS narration saved as story_narration.mp3
- Random voice from curated pool (Charon, Fenrir, Enceladus, Algieba, Aoede, Schedar)
- Override narrator voice with --narrator-voice
- Falls back to story_tts_todo.txt if narration fails
- No new API key required — reuses existing GOOGLE_API_KEY
- Bump version to 0.9.4
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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