skill: LTX提示词升级——新增论文级喂法(大模型生成)+实测万能模板库+避坑清单
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@ -91,3 +91,60 @@ Opening on [主体+起始姿态+场景+朝向+细节]. The [主体] [动作1-起
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**Why:** 爸爸要求"多去网上搜索学习他们的提示词写法,封装形成我们自己的 skill"——这是融合官方博客(ltx.io 2026-07 更新)+LTX团队指南(ltxworkflow)+中文指南(zimage.run)+两次实战验证的完整可复用 skill。
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**How to apply:** 写任何 LTX prompt 前先查这份:套万能公式、查词表、对照常见错误、参考正反例。I2V 用"只写怎么动+收尾"铁律。封装好长期复用。
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## 六、大模型辅助生成提示词(爸爸指定做法:先喂论文级高质量提示词)
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> 社区已验证做法:先用大模型(Gemma/Llama/Qwen 等)生成"论文级/电影级"的提示词,
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> 再喂给 LTX,遵从度和画面质量显著提升。**这比手写 prompt 更接近官方训练分布。**
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### 6.1 文生视频:导演式生成模板(喂给大模型的指令)
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```
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"请作为专业的电影导演,为 LTX-2.3 撰写一个场景描述。要求:50字以上,
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包含具体的 4K 细节、明确的运镜手法(如 Dolly Zoom/慢速推镜)、
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以及场景风格的光影氛围。主体是 [一句话描述]。"
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```
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### 6.2 图生视频:反推 + 运动分量(I2V 进阶)
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```
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第1步 反推:请用一段话详细描述这张图片(主体/姿势/环境/光线/构图),保留图片特征。
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第2步 加运动:在上面描述基础上,增加"接下来怎么动"的运动分量(Motion Prompt),
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包括:主体动作时间流 + 镜头运动 + 环境运动(风/草/光变化)+ 明确结束帧。
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要求只用现在时动词,不写动态/cinematic 等空泛词。
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```
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### 6.3 喂法要点(社区共识)
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- 生成后**人工检查一遍**:动作是否单一路径、有无运动冲突(如"跑得快"+"站着不动"同现)
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- I2V 提醒大模型"输入图是第一帧",别生成与图冲突的内容
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- 一次生成 2~3 版备选,挑动作路径最清晰的用
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## 七、实测万能模板库(CSDN 2026-04 + jishuzhan 2026-05 实测模板,直接抄)
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### 场景A 绝美自然风光(长曝光质感)
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```
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A wide-angle drone shot of a glowing bioluminescent forest at night,
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waterfalls flowing like liquid silver, cinematic slow motion,
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4k resolution, ethereal lighting.
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```
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### 场景B 赛博朋克人物(高精细节)
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```
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A close-up of a futuristic robot's head, mechanical eyes blinking and scanning,
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steam emitting from vents, neon city reflections on its metal surface,
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static camera, high detail.
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```
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### 场景C 粒子消散特效(测模型极限)
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```
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A golden sand sculpture of a lion, slowly dissolving into dust and blowing away
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in the wind, highly detailed sand particles, dramatic side lighting,
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120fps slow motion.
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```
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### 场景D 动物奔跑(电影级)
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```
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A hyper-realistic cinematic shot, slow camera tracking of a golden retriever
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running through a lavender field, sunlight filtering through trees creating
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soft bokeh, 4k, high frame rate 48fps.
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```
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## 八、避坑清单(CSDN 实测)
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1. **拒绝模糊词**:beautiful / good quality 对 LTX 几乎无效,浪费 token
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2. **运动冲突**:不要同句写 running fast + standing still → 剧烈闪烁
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3. **负向提示词必加**:blurry, distorted, low resolution, deformed limbs
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4. **参数联动**:动作流畅(奔跑/打斗)用 48-50fps,电影感用 24-25fps;先 1080p 草稿,满意再 4K
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5. **I2V 提示词与图片冲突是最常见的坑**:先反推图片再写 Motion Prompt(见 6.2)
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