Use these six fixes when a generated video distorts, warps, or morphs mid-clip. Video has an extra distortion cause that still images don't: motion complexity across frames.
Simplify the action. One clear action per video clip. Complex or overlapping actions are the top cause of mid-clip warping.
Shorten the clip. Distortion compounds over time — a shorter video generation drifts less.
Watch for emotionally loaded or spatially vague words in the video prompt. Terms like "tension," "intense," or "dramatic close-up" can be exaggerated into distorted proportions and warped features. Replace them with neutral, concrete descriptions.
Use video-specific negative prompts where supported. A negative prompt is a separate input field, available on some video models, where you list what you do not want to see. Image-style negative lists often fail on video because they ignore frame-to-frame drift — add motion terms like "flickering, jerky motion, morphing, unstable motion" alongside "distorted, deformed."
Anchor the subject. Specific physical descriptions (facial structure, clothing, build) give the video model something to hold constant across frames instead of guessing each frame.
Strengthen the starting image (image-to-video). A sharp, well-lit, high-resolution first frame gives the video model a stable anchor; a weak image invites drift.