頭頂空間
控制人物頭頂與畫框間的距離，避免不必要的空白或意外裁切。
頭頂空間 AI 影片提示詞
Seedance 2.5 提示詞
一名女子面向鏡頭站著，輕輕點了點頭。 柔和的日光，背景是簡單的牆面。 頭頂空間：固定機位的胸上景，她的頭頂與畫框上緣之間留有一小段舒適的空白，大約是畫面高度的 6% 到 7%，頭髮既沒有貼到上緣，上方也沒有多餘的大片空間。 聲音只有安靜的環境音。
MiniMax H3 提示詞
5 秒，16:9。簡單的牆面前，女子面向鏡頭，輕輕點頭。頭頂空間：胸上景，頭頂與畫框上緣之間留約畫面高度 6% 到 7% 的空白，不貼邊、也不過空 [static]。聲音：安靜的環境音。
以上是參考寫法，實際使用時請依照自己的鏡頭設計調整。
文字：fuse 技法研究 · 示範：fuse 內部生成素材（角色 Zlatia · 背景 素牆與赭紅入口）
沒技法有技法分割線會自動來回移動，也可以直接拖曳比較。
效果對照
基準近景在 Zlatia 頭頂留下大片空牆，人物顯得落在畫面下方。頭頂空間版本收緊上方留白，把臉與肩部放到更明確的觀看位置。空牆的視覺份量降低，同一個抬頭表情更容易成為重點。
沒技法有技法示範圖片送出的提示詞
Render only this one edited view as a single full-width scene. No side-by-side comparison or second version. Reframe the entire selected BASELINE image vertically so Zlatia has a comfortable strip of empty background clearly visible above ALL of her hair. Target about 6 to 7 percent of the picture height (about 60 pixels out of 941) between the top edge and the highest strand. Keep that visible margin between 5 and 8 percent: the hair must neither nearly touch the upper edge nor remain a quarter of the way down. This comfortable, clearly visible top margin is the main requirement. Keep her head at the exact same displayed size and horizontal position as the selected baseline. Move every scene feature together upward by approximately 275 pixels: Zlatia, door panels, hardware, wall texture, stone baseboard and paving. Do not move the character against an unchanged background. Preserve her face, slight chin lift, gaze, clothing, pose and lighting. Let the upper portion of the doorway leave the top while revealing continuation of her existing torso and the same foreground paving at the bottom. Keep the full head and the clear 5 to 8 percent breathing space above it. Do not zoom, rescale, tilt, add props, redesign the door or print any guides or coordinates.
頭頂空間在影片裡的作用
對話近景裡，頭頂空間控制臉與畫框的距離，避免無意義的空牆搶走表情的份量。正反拍要維持相近的頭部高度與上緣距離，除非刻意讓某人顯得被壓迫。
這些寫法也適用於圖片生成模型。
