Free previz and scene blocking for AI video: start from a blocked scene, autosave in your browser and export a storyboard sheet, animatic MP4 or share link.
You give it: Where people stand and move
You get back: The scene played through, from every camera
Drag performers and cameras across a timeline and watch animated performers walk their marks. Compare angles on an identical performance, with shot size, lens, eyelines and the 180° line updating live.
Free · no account. Part of plan the scene — before you generate anything.
Previsualization used to mean a storyboard artist or a week in Maya. Block the scene here instead, in the browser, and arrive at the generator knowing where everyone stands, what the lens is doing and which side of the line the camera is on.
Scrub to a moment, move someone, and a keyframe is written there. The walk between marks fills itself in, so a scene has a shape — she sits through the first half, he is on his feet by the end — instead of being a single arrangement of people.
Dolly, truck, pan, arc, crane and zoom, each written as two marks you can drag afterwards. Set the lens from 18mm to 100mm and the height from the floor to overhead, and the shot size follows the geometry rather than a dropdown.
Add up to four cameras to the same blocking. The performance does not change when you switch between them — only the angle does, which is the whole reason coverage cuts together. Each camera reports its own shot size, lens and subject.
Step onto the set and fly the camera you are actually shooting with, on W A S D, Q and E for height. Every adjustment lands on the timeline as a mark, so finding an angle by walking to it is the same act as blocking it.
The 180° line is drawn for you, eyelines are read back in words, and the plan says so the moment a camera crosses to the wrong side. Catching that here costs nothing; catching it after you have generated both shots costs two generations.
The studio opens on a scene that's already blocked: a walk-and-talk, a dinner argument or a standoff. Your blocking is saved in this browser as you work, with no account needed. Sign in to keep it for good. When the blocking is ready, hand it over as a captioned storyboard sheet, an animatic MP4 rendered in your browser, or a share link. No account is needed for any of that: a link made without one works for 30 days, and signing in makes it permanent.
RevaultAI — a curated gallery for AI-generated film.
Blocking a scene is free and needs no account. Credits are only spent when you generate actual video, and the price is shown before you confirm it. There is no subscription.