29 de septiembre de 2026

珊瑚礁を泳ぐウミガメのAI画像プロンプト作例【青い海中】

Prompt

candid underwater documentary photograph of a green sea turtle gliding slowly over a vibrant coral reef, seen from slightly behind and to the side, facing away from camera, front flippers mid-stroke, individual scales and barnacles on its shell clearly visible, small tropical fish scattering nearby, crystal clear turquoise water with shafts of natural sunlight from the surface, soft caustic light patterns rippling across the reef, shot on a Fujifilm X-T5 in a waterproof housing, 35mm equivalent lens, natural depth of field with foreground coral slightly out of focus, slight motion blur on the flippers, subtle suspended particles and micro bubbles in the water, imperfect framing, real life moment, no divers or people in frame

画像モデル: FLUX dev (Black Forest Labs)

Stable Diffusion 再現情報 (Replicate)

完全プロンプト (SDに実際に送信したテキスト)

adult, mature features, safe for work, fully clothed in scene-appropriate everyday attire, natural authentic photograph, candid moment, shot on 35mm film, slight grain, natural depth of field, candid underwater documentary photograph of a green sea turtle gliding slowly over a vibrant coral reef, seen from slightly behind and to the side, facing away from camera, front flippers mid-stroke, individual scales and barnacles on its shell clearly visible, small tropical fish scattering nearby, crystal clear turquoise water with shafts of natural sunlight from the surface, soft caustic light patterns rippling across the reef, shot on a Fujifilm X-T5 in a waterproof housing, 35mm equivalent lens, natural depth of field with foreground coral slightly out of focus, slight motion blur on the flippers, subtle suspended particles and micro bubbles in the water, imperfect framing, real life moment, no divers or people in frame

ネガティブプロンプト

child, children, kid, minor, underage, teen, preteen, toddler, baby, loli, shota, young girl, young boy, little girl, little boy, school uniform on young face, nude, naked, topless, bottomless, nipples, areola, genitalia, penis, vagina, vulva, porn, hardcore, sex act, cum, orgasm, hentai, lewd, nsfw, real person, celebrity, actor, actress, politician, real photograph of celebrity, gore, gory, bloody, decapitation, beheading, torture, self-harm, bestiality, zoophilia, necrophilia, shirtless, bare chest, bare torso, bare back, topless man, underwear visible, panties, thong, lingerie, bra alone, sports bra as outerwear, swimsuit, bikini, monokini, swimwear, see-through clothing, transparent clothing, wet shirt clinging, exposed midriff in office, low-cut neckline, deep cleavage, undressing, partially undressed, clothing falling off, underwear as outerwear, lowres, bad anatomy, bad hands, extra fingers, six fingers, seven fingers, fewer fingers, four fingers, fused fingers, twisted fingers, deformed hand, mutated hand, malformed hand, extra limbs, missing limbs, watermark, signature, text

上記の完全プロンプトとネガティブプロンプトを Replicate / ComfyUI / Forge / Automatic1111 等に貼り付けると、近い結果を再現できます (シードや解像度の違いで完全一致はしません)。

このプロンプトは、透明度の高い青い海の中をサンゴ礁の上でのんびり泳ぐアオウミガメを、本物の水中ドキュメンタリー写真のように再現するものです。完璧に中央配置された過剰な野生動物写真ではなく、偶然のフレーミング・水中の浮遊物・コースティック（揺らぐ光の網目）・わずかなモーションブラーを混ぜることで、「その場で実際に撮ったダイビング写真」らしさを出します。

カメラアングルはカメの斜め後方に置き、甲羅とヒレが画面の主役になるようにします。水の色は「水面付近はターコイズ、下に行くほど濃い藍色」のように具体的に指定しましょう。モデルがヒレの数を増やしたり甲羅をサンゴに溶け込ませたりする場合は、「鱗の一つ一つ」「フジツボ」「単一で解剖学的に正しい生物の体」といったキーワードを強めてください。

併用すると効果的なのは、水中の色味を整える水中LoRA、サンゴのディテールを補う海洋生物系LoRA、そして仕上げのフィルムグレインです。旅行ブログや海洋保全の記事、落ち着いた高級感のある自然画像が欲しいSNSヘッダーなどに向いています。

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