Half a portrait
Half the face and shoulder dissolving while the rest stays solid. The most controlled of the three, and the best fit for a profile-style portrait where the face is large in frame.
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AI video effect
AI Dispersion Effect: Dissolve a Photo Into Particles That Drift Away
Dispersion is the effect that reads as expensive — a solid subject breaking apart into fine particles and drifting out of frame. Upload a photo and OpenFilmo builds the dissolve.
60 secPhoto in, posted clip out
9:16 · 1:1 · 16:9Every ratio, one project
ZeroEditing skills needed
Dispersion works because the eye keeps tracking the part of the subject that has not dissolved yet. As long as a readable amount of the original stays solid, the frame keeps its subject even while it is falling apart.
That is also why the effect needs a clean silhouette and strong directional light. Busy backgrounds and flat lighting flatten the particles into noise, and the dissolve stops reading as a physical event.
How to make a dispersion video from a photo
One photo, one direction, one export. The whole thing takes under a minute.
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Upload a photo with a clear silhouette
A subject separated from its background and lit from one side works best. High contrast and a simple backdrop keep the particles legible as they drift.
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Choose how much of the subject dissolves
Part of the body, a hand or fingertip, or the full figure from the feet upward. Less is usually more — a partial dissolve keeps the subject recognisable through the whole clip.
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Generate and export
The dissolve renders in seconds. Export vertical for Reels, TikTok and Shorts, or other ratios from the same project.
Dispersion directions
Three amounts of dissolve, each built around a different subject and lighting setup.
A hand at the edge
Fingertips dissolving first, one of the oldest tricks in visual effects. Reads as deliberate rather than accidental, which is why it makes a clean hook frame.
Full figure
The whole body dissolving from the hem upward in an empty studio. The most cinematic option, and the one that needs the most empty space around the subject.
Why creators make theirs on OpenFilmo
A dissolve only looks expensive if the subject stays readable and the export fits the platform.
The subject survives the effect
The people, clothing and features in your photo are kept through the dissolve instead of being replaced, so the clip still looks like the person who uploaded it.
Vertical first, every ratio
9:16 for TikTok, Reels and Shorts, 1:1 for feed, 16:9 for YouTube — exported from one project without re-cropping.
Captions and voiceover included
A dissolve carries no information on its own. Add a burned-in line and a voiceover in your audience's language to give it a reason to stop the scroll.
Batch the variants
Render several dissolve amounts from the same photo and post the strongest, instead of committing to one setting blind.
Frequently asked questions
What kind of photo works best for a dispersion effect?
A subject with a clean, readable silhouette against a simple background, ideally lit from one side. Strong contrast between subject and background is what makes the particles read as matter rather than as noise.
Should the whole subject dissolve?
Usually not. A partial dissolve — part of a face, a hand or the lower half of a figure — keeps the subject recognisable for the full duration, which holds attention longer than a complete disappearance.
Does the effect change my face?
No. Your features and expression are preserved and the dissolve is applied on top of them. The clip should still be recognisably the person in the original photo.
Which aspect ratios can I export?
Vertical 9:16 for TikTok, Reels and YouTube Shorts, square 1:1 for feed posts, and 16:9 for YouTube and embedded players.
Do I need editing experience?
No. There is no particle system to configure. You upload a photo, choose how much dissolves, and download the clip.
Make your dispersion video now
One photo in, a cinematic dissolve out. Free to try — no card required.