DR: R18 CG集 構図・カメラワーク・絶頂演出・脱衣段階の体系化 — 脱POV依存 (2026-05-21)

論点1: カメラ/アングル最適配分 — 脱POV依存

現状の looking down / looking up 系 POV (自撮り視点) 偏重は、SDXL で安定して出やすい反面、600枚並べると「全部同じ目線」で飽きが出る。danbooru のカメラタグは「①垂直アングル / ②方向 / ③傾き・特殊 / ④距離・フレーミング」の4系統に整理でき^[1]、Illustrious/NoobAI は danbooru 学習なのでこれらタグがそのまま効く。基本ルールは「距離タグ(full body/cowboy shot/close-up) × 方向タグ(from side/from above/from below/from behind) を直交で組む」^[2][3]。

カメラ画角の danbooru タグと「このシーンにはこの画角」対応表

※配分はGrok提案を Gemini監査で補正。straight-on + from side の正面寄りを40%→38%へ下げ、pov を独立15%枠に。profile(横顔)は from side の表情カットとして内包。

CAMERA_ANGLES = {
    "from side":    {"jp":"側面",   "best_for":["doggystyle","spooning","matsuba kuzushi","insertion visible"], "share_pct":22},
    "straight-on":  {"jp":"正面",   "best_for":["missionary","face+insertion"], "share_pct":16},
    "pov":          {"jp":"主観",   "best_for":["face close","oral","viewer pov"], "share_pct":15, "always_with":["looking at viewer","faceless male"]},
    "from above":   {"jp":"俯瞰",   "best_for":["cowgirl","reverse cowgirl","lying","cum on breasts drop"], "share_pct":13},
    "from behind":  {"jp":"後背",   "best_for":["doggystyle","standing sex","ass focus"], "share_pct":11},
    "full body":    {"jp":"全身",   "best_for":["standing sex","suspended congress","s1 undressing"], "share_pct":9},
    "cowboy shot":  {"jp":"腰上",   "best_for":["s2-s3 breasts out","panties aside"], "share_pct":7},
    "close-up":     {"jp":"結合接写","best_for":["s4-s5 insertion detail","internal overflow"], "share_pct":4},
    "dutch angle":  {"jp":"傾き",   "best_for":["s4-s5 intensity"], "share_pct":3},
}
# 直交ルール: 1枚 = 距離(full body/cowboy/close-up) × 方向(side/above/below/behind) を組む
# 例: "from side, cowboy shot" / "from above, full body"

論点2: 絶頂逆算5シーンの着衣段階 (intensity別)

s5(絶頂)から逆算し、着衣を「戻す=剥がし前の状態へ巻き戻す」方向で設計すると、時系列の連続性が破綻しにくい。danbooru の脱衣/露出タグは段階的に揃っている。Gemini監査の指摘(open clothesがs1/s4重複・bottomless≒no panties冗長・「半脱ぎ挿入」はAIが破綻しやすい)を反映し、各段階のタグ役割を排他化した。

UNDRESS_STAGES = {
    "s1": {"nudity_level":"light",     "clothing_state":"着衣→脱ぎ始め",
           "pos_tags":["undressing","clothes pull","open shirt","unbuttoned"]},
    "s2": {"nudity_level":"medium",    "clothing_state":"胸出し・下着ずらし",
           "pos_tags":["breasts out","bra lift","(panties aside:1.2)","clothing aside"]},
    "s3": {"nudity_level":"high",      "clothing_state":"部分着衣のまま挿入",
           "pos_tags":["clothes lift","partially undressed","topless","sex","vaginal"]},
    "s4": {"nudity_level":"very_high", "clothing_state":"ほぼ裸・激化",
           "pos_tags":["bottomless","nipples","sex","vaginal","(sweat:1.1)"]},
    "s5": {"nudity_level":"full",      "clothing_state":"全裸絶頂",
           "pos_tags":["completely nude","nipples","areolae"]},  # 発射タグは CUMSHOT_TYPES から合成
}
# 逆算運用: まず s5 を確定 → s4,s3 と「服を戻す」→ s2,s1。キャラ髪色/体型/seed は固定。

論点3: 発射演出のバリエーション (構図別)

フィニッシュは購買の決め手。中出し/顔射/ぶっかけ/胸射/ガン射を構図と必ずセットで定義する。発射の「直後(aftermath)」=余韻カットも1〜2枚挟むと満足度が上がる。Gemini指摘で overflow は曖昧なため、視覚明示の cum overflow / cum dripping from pussy を採用。ガン射(excessive cum)は s5 専用に制限。

CUMSHOT_TYPES = {
    "internal":   {"jp":"中出し",  "pos_tags":["cum in pussy","internal cumshot","cum overflow"],
                   "best_angle":["close-up","from side"], "aftermath":["cum dripping from pussy","after sex"]},
    "facial":     {"jp":"顔射",    "pos_tags":["facial","cum on face"],
                   "best_angle":["pov","straight-on","from side"], "aftermath":["cum on face","afterglow"]},
    "on_breasts": {"jp":"胸射",    "pos_tags":["cum on breasts","cum on body"],
                   "best_angle":["from above","straight-on"], "aftermath":["cum on breasts","after ejaculation"]},
    "bukkake":    {"jp":"ぶっかけ","pos_tags":["bukkake","cum on face","cum on body"],
                   "best_angle":["full body","from behind"], "aftermath":["covered in cum","cum pool"]},
    "excessive":  {"jp":"ガン射",  "pos_tags":["excessive cum"],  # s5限定
                   "best_angle":["full body","from side"], "aftermath":["cum pool","cum everywhere"]},
}

論点4: 8体位 × 画角の相性表

体位ごとに「結合部が映える角度」と「破綻しやすく避ける角度」が決まっている。Gemini監査で matsuba kuzushi(松葉崩し)と suspended congress(駅弁)はSDXLでの再現難度が高いと指摘→weight強調+seed厳選+生成後に30枚評価ループを前提に「枚数控えめ」運用を推奨。

POSITION_ANGLE = {
    "missionary":      {"jp":"正常位",   "tag":"missionary",         "best_angles":["straight-on","close-up"], "avoid":["from behind"], "insertion_visible_angle":"straight-on"},
    "cowgirl":         {"jp":"騎乗位",   "tag":"cowgirl position",   "best_angles":["from above","full body","pov"], "avoid":["from behind"], "insertion_visible_angle":"from above"},
    "doggystyle":      {"jp":"バック",   "tag":"doggystyle",         "best_angles":["from side","from behind"], "avoid":["from above"], "insertion_visible_angle":"from side"},
    "spooning":        {"jp":"側位",     "tag":"spooning",           "best_angles":["from side","close-up"], "avoid":["from above"], "insertion_visible_angle":"from side"},
    "standing":        {"jp":"立位/駅弁","tag":"standing sex",       "best_angles":["full body","from side"], "avoid":["close-up"], "insertion_visible_angle":"from side"},
    "reverse_cowgirl": {"jp":"背面騎乗", "tag":"reverse cowgirl",    "best_angles":["from behind","from above"], "avoid":["straight-on"], "insertion_visible_angle":"from behind"},
    "matsuba_kuzushi": {"jp":"松葉崩し", "tag":"matsuba kuzushi",    "best_angles":["from side","straight-on"], "avoid":["from above"], "insertion_visible_angle":"from side", "difficulty":"high"},
    "upright_straddle":{"jp":"対面座位", "tag":"upright straddle",   "best_angles":["from side","pov"], "avoid":["from above"], "insertion_visible_angle":"from side"},
}
# difficulty:"high" は seed厳選 + 枚数控えめ + 生成後 30枚評価ループ前提

論点5: 単調回避の台本(シナリオ)5案 + 600枚配分

Vol を物語的に s1→s5 でエスカレートさせる。各案で主体位・主発射・主画角を変えると、シリーズ全体で被らない。600枚は「s1=80 / s2=120 / s3=180 / s4=140 / s5=80」を基準配分(挿入のs3を厚く、フィニッシュのs5を濃く短く)。

SCENARIOS = {
    "01_oudou_seduction": {
        "flow":["s1 undress","s2 foreplay","s3 missionary","s4 build","s5 internal"],
        "main_position":"missionary", "main_cumshot":"internal",
        "scene_map":{"s1":"full body, from side","s2":"cowboy shot, breasts out",
                     "s3":"straight-on, missionary","s4":"from side, sweat","s5":"close-up, cum in pussy, cum overflow"}},
    "02_clothed_play": {
        "flow":["s1 light undress","s2 bra lift","s3 clothes lift sex","s4 bottomless","s5 nude"],
        "main_position":"doggystyle", "main_cumshot":"on_breasts",
        "scene_map":{"s2":"cowboy shot, breasts out","s3":"from side, clothes lift",
                     "s4":"from behind, doggystyle","s5":"from above, cum on breasts"}},
    "03_cowgirl_lead": {
        "flow":["s1 standing tease","s2 cowgirl start","s3 deep","s4 from above","s5 excessive"],
        "main_position":"cowgirl", "main_cumshot":"excessive",
        "scene_map":{"s2":"full body, cowgirl position","s3":"from above, cowgirl position",
                     "s4":"pov, looking at viewer","s5":"full body, excessive cum, cum pool"}},
    "04_back_centric": {
        "flow":["s1 from behind","s2 panties aside","s3 doggystyle","s4 spooning","s5 internal overflow"],
        "main_position":"doggystyle", "main_cumshot":"internal",
        "scene_map":{"s1":"from behind, full body","s3":"from side, doggystyle",
                     "s4":"from side, spooning","s5":"close-up, cum dripping from pussy"}},
    "05_facial_afterglow": {
        "flow":["s1 clothed foreplay","s2 breasts out","s3 upright straddle","s4 climax","s5 facial -> afterglow"],
        "main_position":"upright_straddle", "main_cumshot":"facial",
        "scene_map":{"s3":"from side, upright straddle","s4":"pov, looking at viewer",
                     "s5":"straight-on, facial","aftermath":"pov, cum on face, afterglow"}},
}
SCENE_COUNT = {"s1":80,"s2":120,"s3":180,"s4":140,"s5":80}  # 計600枚

統合dict: play_modules へ追記する CAMERA_ROTATION

play_modules_2026_05_20.py へ以下を追記すると、シナリオ選択→各シーンの「画角×着衣×体位×発射」が自動合成される。Gemini指摘(統合dictの用途を明確に)を受け、「シナリオ名と枚数を渡すとプロンプト断片を返す合成関数」まで含めた。

# === play_modules_2026_05_20.py へ追記 ===
CAMERA_ROTATION = {
    "angles":    CAMERA_ANGLES,
    "undress":   UNDRESS_STAGES,
    "cumshot":   CUMSHOT_TYPES,
    "position":  POSITION_ANGLE,
    "scenarios": SCENARIOS,
    "scene_count": SCENE_COUNT,
}

QUALITY_HEAD = "masterpiece, best quality, very aesthetic, absurdres, anime style"
BASE_CAST    = "1girl, 1boy, faceless male, 18-20 years old, slim youthful body"
NEG = ("ahegao, tongue out, rolling eyes, cross-eyed, glasses, 2boys, multiple boys, "
       "extra penis, multiple views, photorealistic, realistic, 3d, censored, mosaic, "
       "bad anatomy, extra limbs, deformed, watermark, mature, old")

def build_scene_prompt(char_pos, scenario_key, stage):
    sc  = CAMERA_ROTATION["scenarios"][scenario_key]
    cam = sc["scene_map"].get(stage, "from side")          # 画角(+追加tag)
    und = " ".join(CAMERA_ROTATION["undress"][stage]["pos_tags"])
    parts = [QUALITY_HEAD, BASE_CAST, char_pos, cam, und]
    if stage == "s5":                                       # フィニッシュは発射合成
        cs = CAMERA_ROTATION["cumshot"][sc["main_cumshot"]]
        parts.append(", ".join(cs["pos_tags"]))
    parts.append("half-closed eyes, blush, parted lips, tears of pleasure")  # 恍惚(NG=ahegao)
    return ", ".join(parts), NEG

# 使用例: build_scene_prompt("akari, black long hair, ponytail", "01_oudou_seduction", "s5")

制約遵守チェックリスト & 推奨NEGプロンプト

脚注 (出典URL)

1. Moescape — Danbooru Pose & Camera Tags (垂直/方向/傾き/距離の4系統整理): https://moescape.ai/posts/danbooru-pose-and-camera-tags
2. Weird Wonderful AI Art — SDXL Guide to Camera Framing and Angle (full body / cowboy shot=股〜上 / close-up / from above / from below 等): https://weirdwonderfulai.art/resources/sdxl-guide-to-camera-framing-and-angle/
3. Digital Creative AI (DCAI) — Camera angle / composition / facial expression prompts (cowboy shot=crotch to top, dutch angle, pov, side view, full body 等の定義): https://www.digitalcreativeai.net/en/post/introduction-of-prompts-ai-illustration-generation-camera-angle-composition-facial-expression
4. AnimeGenius — The Ultimate Stable Diffusion Camera Angle Prompts Guide (from above/below, cowboy shot, full body, close-up, low angle, pov): https://animegenius.live3d.io/tutorial/the-ultimate-stable-diffusion-camera-angle-prompts-guide
5. Aiarty — Best Stable Diffusion Camera Prompts List with Examples (dutch angle / framing 一覧): https://www.aiarty.com/stable-diffusion-prompts/stable-diffusion-camera-prompts.htm
6. Civitai — Tips for Illustrious XL Prompting (品質/aestheticタグを前置・拡張NEG推奨): https://civitai.com/articles/8380/tips-for-illustrious-xl-prompting-updates
7. DLsite サービスインフォメーション — AI生成フロア公開 / 写実的AI生成は取扱不可・AIオプション必須: https://info.eisys.co.jp/dlsite/dcbab34695586403
8. Impress PC Watch — DLsite「AI生成フロア」新設・AI生成作品取扱再開の解説 (申請上限・ガイドライン): https://forest.watch.impress.co.jp/docs/news/1569791.html
9. Civitai — Crody's Illustrious / NoobAI Image Generation Tips (NoobAI/Illustrious のタグ挙動・anatomy安定): https://civitai.com/articles/19107/crodys-illustrious-noobai-image-generation-tips
10. SeaArt — NOOBAI XL Guide (NoobAI XL のプロンプト推奨): https://docs.seaart.ai/guide-1/6-permanent-events/high-quality-models-recommendation/noobai-xl