这是一款基于 WAN-VACE 的视频扩图应用。
上传一段输入视频，并输入一段画面描述，应用会在尽量保留原视频主体与运动节奏的前提下，对画面进行扩展与补全，生成一段新的扩展视频。它更适合做“原视频继续向画面外延展”“补出更多场景内容”“把主体周围空间补完整”的效果。
推荐这样使用：
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输入视频尽量选择单主体、动作清晰、镜头变化不要太乱的片段
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更适合中短片段，不建议一开始就上传特别复杂的大场面视频
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提示词尽量明确写“扩展后希望补出什么环境或画面内容”
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想让结果更稳定，可以强调“动作连贯、主体一致、场景自然延展、细节清晰、光影自然”
推荐输入示例：
主体继续向更大的场景中运动，周围环境自然补全，动作连贯，镜头稳定，细节清晰，光影自然，整体画面统一。
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