底片顆粒
以細小且隨時間變動的顆粒增加影像質地，讓畫面帶有攝影介質的感覺。
底片顆粒 AI 影片提示詞
Seedance 2.5 提示詞
一名女子坐在窗邊，慢慢翻開一本書。 柔和的窗光，色彩自然。 底片顆粒：整個畫面帶有高感度 Super 16 彩色負片的質感，有機的顆粒在正常觀看大小下明顯可見，大小、疏密與濃淡自然不均，並且每一格都在變動；顆粒是影像質地的一部分，人物的臉與書頁的細節仍看得清楚。 固定機位的中景。 聲音包含翻頁聲與安靜的室內環境音。
MiniMax H3 提示詞
5 秒，16:9。窗邊，女子慢慢翻開一本書，柔和的窗光。底片顆粒：高感度 Super 16 彩色負片的質感，有機顆粒明顯、每一格都在變動，臉與書頁細節仍清楚。中景 [static]。聲音：翻頁聲、室內環境音。
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 Shami · 背景 暮色長牆步道）
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
基準圖中的 Shami、天空與衣袍表面較乾淨平滑。膠片顆粒版本在整張影像加入不規則的明暗與色彩密度起伏，天空、肌膚和深色頭髮都能看出質地。顆粒讓畫面帶有膠片乳劑般的粗細變化，眼睛、吊墜與服裝細節仍可辨識。
沒技法有技法示範圖片送出的提示詞
Re-render the surface texture of this exact selected A as a single scanned frame of high-speed Super 16 colour-negative film. This is a deliberately grain-forward photochemical texture study. Make organic dye-cloud grain unmistakable at normal full-image viewing size, distinctly stronger and more film-like than the previous r4. Build the texture from irregular, softly bounded translucent variations of colour density at several small scales. Shapes, sizes, spacing and opacity must vary naturally. Let grain have stronger presence in midtones and shadow regions and subtler presence in bright highlights, while remaining clearly visible across smooth sky, skin and fabric. Use primarily luminance texture with restrained, naturally correlated colour-density variation. Integrate the grain into the image's tonal transitions, with gently organic fine-detail microcontrast; preserve readable eyes, facial features, the pendant and costume design. Keep the original illustrated character, exact composition, light direction, shadow shapes, overall colours and brightness. Do not make the figure photorealistic. Avoid regular pointillist dots, uniformly sprinkled noise, sand or paper texture, material-only roughness, isolated coloured specks, muddy blobs, digital sharpening halos, dust, scratches or damage. No new objects, colour grading, halation, vignette or defocus. Render one finished 16:9 image with convincing, visibly pronounced film-emulsion grain.
底片顆粒在影片裡的作用
回憶、檔案影像或帶有粗礪質感的段落可以用底片顆粒區分影像來源，也讓平滑的生成畫面有時間流動的質地。整段要維持顆粒的粗細、色彩與跳動強度，避免每次切鏡都像換了拍攝媒介。
這些寫法也適用於圖片生成模型。
