fal 推出 H3 Max Relight，可对已有视频重新打光。用户上传视频后在内置 Lighting studio 中选择颜色、让光源围绕主体旋转并调节强度和柔和度，模型逐帧重打光，同时保留原视频的主体、运动、镜头运动和音频，可将平淡日光改为黄金时刻、霓虹或品牌配色，无需重新拍摄。该功能由 H3 Max 驱动，官方称其在整体质量、提示词理解和美学方面领先主要视频模型。
Introducing H3 Max Relight, an easy way to change the lighting of any video.
Upload an existing video, then design your light in the built-in Lighting studio: pick colors, orbit each light around the subject, and dial in intensity and softness. H3 Max Relight relights every frame to match while preserving the original subjects, motion, camera movement, and audio. Go from flat daylight to golden hour, neon, or your brand palette, all without another shoot.
Powered by H3 Max, the #1 model for overall quality, prompt understanding, and aesthetics against leading video models.
来源：fal · x.com