How to turn a horizontal video into a vertical one
Upload the horizontal video to Vizard Agent and say which vertical feed it is for. Vizard Agent follows the subject through the frame instead of cropping the centre, and finds any text that was burned into the original so it still reads at the new shape. What comes back is a 1080x1920 cut you can post directly.
What do you type into Vizard Agent?
One sentence covers it, and the clause about text is the one people leave out. Vizard Agent will look for burned-in titles either way, but naming them means it treats them as something to preserve rather than something it found. If it should only be reframed, not shortened, say that too.
Prompt
What does Vizard Agent actually do?
A wide frame carries its information across its width, and a vertical one has no width to spare. Cropping the centre loses the speaker the moment they step sideways, and text burned into a wide frame can't survive a vertical crop, so Vizard Agent has to find it, understand it and rebuild it. In the session behind this article it:
- Pulled frames and the transcript, and read the transcript through to the ending so the cut lands on a finished sentence rather than a timecode.
- Found exactly when the title cards appear, then zoomed in to pin the timing down to the frame.
- Studied the title card's typeface, placement and colour, because whatever replaces it has to match.
- Looked at the outro text separately, since end cards are laid out differently from titles.
- Reframed the picture to follow the subject and delivered 58.27 seconds at 1080x1920, keeping the source's 23.976 fps rather than normalising to 30.
When does this not work well?
Reframing takes information away, and some shots are about their width. Two people side by side in a wide frame won't both fit, so the honest answers are a stacked split or cutting between them. Wide establishing shots lose their reason to exist, and a 720p source leaves less than 720p of real detail after the crop.
Common questions
Will it just crop the middle? No. Vizard Agent follows the subject through the frame. Centre-crop is exactly what makes a speaker walk out of shot.
Can it go the other way, vertical to horizontal? Yes, and it's harder, because the sides have to be filled rather than chosen. Tell Vizard Agent what you want at the edges.
Does the audio change? No. Reframing is a picture operation and Vizard Agent leaves the audio as recorded.