一塊布的褶子，拍出了山脊感
沒有一針一線，純靠布料自己疊出來的明暗層次，樸實但見功夫。
寫法要點
✍️ 關鍵在單側布光，側光才能把每道褶皺的稜線和凹槽都交代清楚，頂光會把層次全壓平。顆粒感是後加的，給單色調找點粗糙感，不然太順滑顯得假。
完整提示詞
📋 提示詞 自然語言916 字元
A close-up abstract study of fabric folds filling a horizontal 16:9 frame, the deepest fold centered with a prominent diagonal sweep running lower-left to upper-right to guide the eye across. Hold a tight widescreen crop, fabric occupying roughly the lower two-thirds, upper third reserved as gentle negative space at top-right. Single soft side light from the left sculpts form in smooth gradation and soft-edged shadow, clear highlight along ridge edges and muted tone settling into the troughs. Let the textile read as a soft material, fine weave with subtle sheen catching rim highlight while staying matte within the deeper creases. Keep depth of field shallow so the near ridge resolves crisp while folds recede into soft falloff, layering depth across the frame. Add restrained film-like grain and a faint vignette to anchor the edges for wallpaper use, contrast moderate throughout, tonal transitions smooth.
📋 中文譯寫版 自然語言
一幅布料褶皺的抽象特寫研究，橫向16:9畫面，最深的褶皺居中，一道明顯的對角線從左下掃向右上，引導視線穿過畫面。構圖取緊湊寬畫幅，布料佔據下三分之二左右，上三分之一在右上角留作柔和負空間。單一柔和側光從左側塑造形體，帶來平滑的漸變與柔邊陰影，稜線邊緣清晰高光，凹槽處則沉澱為低調影調。織物應呈現柔軟材質感，細密的編織帶一絲微光，在深褶皺內則保持啞光。景深保持淺，近處稜線清晰銳利，而褶皺向後逐漸柔化衰減，為畫面分出層次。加入剋制的膠片質感顆粒與淡淡暗角以穩住畫面邊緣，方便作桌布使用，整體對比適中，影調過渡平滑。
