Stable Diffusion 是一種基於擴散模型(Diffusion Model)的 AI 影像生成技術,能夠根據文字描述創造高品質的圖片。它是開源的,因此社群開發了許多不同風格的 checkpoint(主模型),如寫實、動漫、插畫等,本文以「動漫」或「二次元」風格為主軸。本文將聚焦於如何運用提示詞打造一幅「二次元角色舔嘴自拍」的場景,而不是進行相關軟體操作教學。關鍵在於正確組合動作、氛圍與細節相關的提示詞,透過這些指令引導 AI 呈現理想畫面。
舔嘴自拍的關鍵提示詞
tongue, tongue out, licking lips, parted lips, closed mouth, naughty face, :p, :q, selfie, outstretched arms, outstretched arm, spread arms, reaching out, outstretched hand
首先,為了呈現出角色舔嘴的神態,需要使用如「tongue」(舌頭)、「tongue out」(吐舌)、「licking lips」(舔嘴唇)、「parted lips」(嘴唇微開)等提示詞,這些詞彙能細緻表達嘴部動作與表情的層次感。若想加強角色的俏皮感,「naughty face」(調皮的表情)會是個不錯的選擇。表情符號如「:p」和「:q」常被用來呼應角色吐舌頭的表情,這些符號源自於簡單的文字顏文字(emoticon)。
自拍的構圖同樣重要。「selfie」(自拍)是核心提示詞,但為了讓角色姿勢更生動,可以加入「outstretched arms」(伸出的雙臂)、「reaching out」(向前伸手)等指令,模擬自拍時特有的角度與距離感。
輔助提示詞強化畫面效果
long hair, bangs, eyebrows visible through hair, swept bangs, sidelocks, two side up, blush, looking at viewer, head tilt, maid headdress, maid, maid bikini, maid apron, enmaided, apron, frills, frilled bikini, puffy sleeves, puffy short sleeves, short sleeves, skirt, black skirt, waist apron, white apron, bikini, frilled bikini, bikini under clothes, black bikini, bikini top, front-tie top, bra, black bra, bow bra, underwear, panties, black panties, navel, midriff, stomach, bare shoulders, cleavage, small breasts, flat chest, crossdressing, otoko no ko, shirt, open shirt, detached sleeves, detached collar, black bow, ribbon, hair bow, bowtie, black ribbon, neck ribbon, black neckwear, collar, grey eyes, wrist cuffs
除了動作與構圖,輔助提示詞能大幅提升畫面層次。例如,設定角色外觀時,使用「long hair」(長髮)、「swept bangs」(側分瀏海)等詞彙能細緻描繪髮型,而「blush」(臉紅)、「looking at viewer」(看著觀眾)與「head tilt」(頭部傾斜)則讓神情更具吸引力。
服裝方面,以「女僕」來說,選擇「maid headdress」(女僕頭飾)、「maid apron」(女僕圍裙)等元素,搭配「frilled bikini」(荷葉邊比基尼)、「puffy short sleeves」(蓬蓬短袖)等提示詞,營造出可愛又略帶挑逗的氛圍。再結合像是「black bow」(黑色蝴蝶結)、「wrist cuffs」(手腕袖飾)等小配件,讓整體造型更豐富。
這次拿「偽娘」來作範例,這類型的角色有其獨特的視覺特徵,而提示詞的選擇至關重要。關鍵詞「crossdressing」(男扮女裝)與「otoko no ko」(偽娘)能讓 AI 清楚辨識角色的設定,而「flat chest」(平胸)則強化偽娘的細節特徵,避免誤判為普通女性角色。此外,適當強調「small breasts」(小胸部)、「slim waist」(纖細腰身)與「midriff」(腰腹部)等詞彙,能讓角色的身形更貼近偽娘的審美標準。
示範生成角色:偽娘女僕
這次生成「偽娘女僕舔嘴自拍」的畫面做為示範,大家也能自行修改輔助提示詞的部分,來讓自己喜歡的角色做出「舔嘴自拍」的動作。
疊代步數:30 步
挑選張數:6 張
輸出尺寸:1024 x 768 px(4:3)
使用工具:Stable Diffusion web UI、Animagine XL V4
CFG Scale:7
提詞文字:((masterpiece), (amazing), (vivid), (elegant), (lustrous), (flawless), (best quality), (photorealistic):1.3), 1girl, solo, solo focus, long hair, bangs, eyebrows visible through hair, swept bangs, sidelocks, two side up, tongue, tongue out, licking lips, parted lips, closed mouth, naughty face, blush, looking at viewer, head tilt, maid headdress, maid, maid bikini, maid apron, enmaided, apron, frills, frilled bikini, puffy sleeves, puffy short sleeves, short sleeves, skirt, black skirt, waist apron, white apron, bikini, frilled bikini, bikini under clothes, black bikini, bikini top, front-tie top, bra, black bra, bow bra, underwear, panties, black panties, navel, midriff, stomach, bare shoulders, cleavage, small breasts, flat chest, crossdressing, otoko no ko, shirt, open shirt, detached sleeves, detached collar, black bow, ribbon, hair bow, bowtie, black ribbon, neck ribbon, black neckwear, collar, grey eyes, wrist cuffs, :p, :q, selfie, outstretched arms, outstretched arm, spread arms, reaching out, outstretched hand
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