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How to solve the problem of unnatural character movement in AI video generation?

2025-08-21 288

A solution to unnatural movements in AI video generation

When using Veo3.bot to generate videos, if the condition of unnatural character movement occurs, you can optimize it by the following methods:

  • The Precision Cue Word Technique::
    Input should contain specific action descriptions (e.g. "turning slowly", "waving gracefully") to avoid vague expressions. Recommended format: "[Character traits] + [Precise action] + [Scene details]", e.g. "Man in a suit walking naturally from right to left with a briefcase in his hand".
  • Image to Video Optimization::
    Upload a high-quality source image (recommended resolution ≥1024×1024) and specify the movement trajectory in the supplemental tip (e.g., "The girl in the photo has her head slowly raised and her eyes gradually opening").
  • Model Selection Strategy::
    Priority is given to the Veo 3 High Quality mode, which has a more advanced physics engine. For a quick test, re-render locally after Veo 3 Fast generation.
  • Segment Generation Techniques::
    Break down the long action into multiple 8-second segments (e.g., "handshake→talk→goodbye") and splice them together in post-production.

advanced program: When integrating via the API, you can add the motion parameter "motion_intensity":0.8 (0-1 range) to control the fluidity or use a sequence of cues to keep the motion coherent.

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