选一张干净的首帧
确认构图符合预期，脸、手和重要道具没有明显瑕疵。图生视频输出画幅跟随这张图。
把视觉信息交给首帧
选择构图、角色设计和光线都符合场景的图片。图生视频只使用这一张首帧，不支持另加尾帧。镜头描述只写动作、机位和情绪；需要多张参考图或音频参考时，改用参考生视频。
如何把一张图变成视频：操作步骤
选择图生视频模式
打开项目，选择 Vidu Q4 Preview，并添加一张首帧。如果需要多张参考图，使用参考生视频。
写一个动作并设置片段
描述运动与机位，不用重新描述角色外观。选择3–16秒、支持的分辨率与音频选项，生成前查看当前积分预估。
决定采用还是重做
检查首帧是否被保留、动作是否清楚、结尾是否方便剪辑。出现跑偏时，先简化动作或改好首帧，再重试。
Vidu Q4 Preview 真实生成样片
三个图生视频起点
Use the selected image as the opening frame for @Mira at @Station. She slowly raises her gaze toward something just outside the frame, then settles into a still, attentive pose. Keep a medium close-up and a locked camera so the change in expression remains easy to read. Maintain the direction and softness of the existing light. Add only a slight movement in the background and avoid a cut, a new character, or a second action.
Begin from the selected image of @Pendant at @Workshop. A hand enters from the right, gently rotates the object a small amount, and then holds it still. Use a restrained push-in rather than orbiting the object. Preserve the visible proportions, surface markings, and contact with the table. Keep the original lighting direction and let the highlight move naturally across the surface. Finish with a clear, quiet hold that can be used as an editing point.
Start from the selected image of @Garden. Move the camera forward very slowly along the existing path, keeping the horizon level and the main doorway in the same part of the frame. Allow a few leaves to shift in a light breeze while the architecture remains steady. Preserve the calm evening mood and the original light direction. Keep this as one uninterrupted establishing shot, without introducing people, changing the weather, or revealing a new location.
图生视频常见问题
要把整张图重新描述一遍吗？
外观交给图片和对应资产。描述只增加这一镜的新信息：一个动作、机位、情绪，以及需要保持的光线。
为什么简单镜头也要检查？
有清楚的图片，生成时仍可能改变脸、手或物体形状。对比开头、中间和结尾，没有达到预期时每次改一条指令。
能加多张图片和音频吗？
参考生视频支持1–15张图片和最多3段音频参考。本页的图生视频流程从一张图片开始；生成音频可以开启或关闭。
能复现完全相同的成片吗？
可以用相同的输入、提示词和参数作为起点。每次生成仍会有差异，应对照动作、构图和收尾审片，而不是期待每一帧完全相同。