Image-to-video motion prompts
Turning a still AI image into a clip is mostly about describing motion clearly. Tools like Runway, Kling and Stable Video Diffusion each read motion language a little differently, but the core vocabulary — camera moves and subject motion — is shared. This builder pairs a sensible camera move with subject motion that suits your image type and formats it for your platform.
How it works
The tool separates camera motion (dolly, pan, orbit, zoom — moving the viewpoint) from subject motion (what moves inside the frame). Camera moves are far more reliable, so for difficult subjects like faces it leans on subtle camera work. It then formats the result for the chosen platform: descriptive language for Runway and Kling, and a guidance note plus motion-strength advice for Stable Video Diffusion, which is driven mainly by a numeric motion value.
Tips and notes
- One camera move, one subject motion. Conflicting motions cause warping.
- Animate things that move in real life — water, smoke, hair, cloth, clouds.
- Use camera moves for rigid subjects. A slow dolly-in sells a product shot better than fake object motion.
- For SVD, the slider rules. Treat the prompt as a hint and tune the motion bucket/strength; too high and the frame falls apart.