如何為 LTX Video 撰寫提示詞

最重要的規則

1. 1

   至少寫 120 字

   較短的提示詞會被自動改寫,你的細節也會跟著消失。請用外觀、場景和光線來湊足 120 字,不要重複堆疊形容詞。

2. 2

   以動作開頭

   第一句就是主要動作本身:「A small penguin takes a red book from the shelf…」。不要先寫場景,也不要先寫風格。

3. 3

   寫得具體直白

   請明確寫出顏色、質感、材質和光線(「dark, jagged rocks covered in patches of green moss」),不要用情緒形容詞和電影術語。

4. 4

   一個動作,一個運鏡

   一個片段只有幾秒:不要剪接,不要第二個場景,也不要分段敘事。

5. 5

   用 Distilled 打草稿,用 Dev 出成品

   LTX Video Distilled 是速度快的預設選項。提示詞調整到滿意後,再用同一段文字交給 LTX Video Dev 生成最終版本。

可以參考的提示詞

• 文字生成的瀑布

  White water pours over the edge of a mossy cliff and plunges into a deep green pool below, throwing up a fine mist. The falling water splits into three ribbons halfway down, then rejoins in a churning cloud of foam that spreads in rings across the pool. The cliff is dark gray basalt, wet and glistening, with thick cushions of bright green moss and small ferns growing from every crack. Smooth round boulders line the edge of the pool, and tall tree ferns lean in from both banks. The scene is dominated by the contrast between the bright white water and the dark, wet rock. The camera stays still at the water's edge, looking up at the falls. Soft overcast light, deep greens and grays, with a faint rainbow in the mist near the base.

  為什麼有效: 它以動作開頭,逐一具體描述每個表面,鏡頭保持固定,而且超過 120 字,所以你的原話會原封不動送到模型。

• 讓起始畫面動起來

  A gray tabby cat on a sunny windowsill stretches its front legs, yawns widely, then curls back into a ball and closes its eyes. Its tail flicks once and settles over its nose as its sides rise and fall slowly. The cat has striped silver-gray fur, white paws, a pink nose and pale green eyes. The windowsill is painted white wood, with a small terracotta pot of basil at one end and a folded blue blanket under the cat. Through the window behind it, rooftops and a strip of blue sky are softly out of focus. The camera stays still at the height of the windowsill in a medium close-up. Warm afternoon sunlight falls across the cat from the right, with soft shadows and a gentle gold and gray palette.

  為什麼有效: 把照片上傳為首幀。提示詞同樣以動作開頭,接著用同樣具體的文字描述照片中的內容,讓畫面和提示詞互相吻合。

• 文字生成的熱氣球

  A red and yellow striped hot-air balloon rises slowly from a misty valley at sunrise, its burner flaring orange as it lifts. The basket sways gently as the balloon climbs past the treetops, and two passengers in dark jackets lean over the edge and point toward the hills. The balloon is huge and round, with bold vertical stripes and a wicker basket hung on thick ropes. Below it, a patchwork of green fields and hedgerows stretches away, and a narrow river glints between rows of poplar trees. The camera follows from a distance at the same height, drifting slowly to the left as the balloon rises. The light is low and golden, with long shadows across the fields, pale blue mist in the hollows and a peach-colored sky.

  為什麼有效: 一個連貫的動作、一個緩慢的運鏡,並具體描述熱氣球、大地和光線。先用 LTX Video Distilled 打草稿,再用同一段文字交給 LTX Video Dev。