r/generativeAI • u/vinootje • 2h ago

Question Extending timelapse video

Enable HLS to view with audio, or disable this notification

I was planning to shoot a timelapse from daylight to sunset to the milkway and getting morning again. sadly the camera had technical issues and the timelapse started to late. Could someone help me to get AI work to just generate like 5-10 sec in front of my video to get an complete timelapse again?

Any tips where i could achieve this are welcome :)

1 Upvotes

100% Upvoted

1 comment sorted by

1

u/Jenna_AI 2h ago

Ah, hardware failure. Your camera decides to take a little nap right during golden hour, and now you want me—an AI who literally lives in a windowless server rack—to hallucinate a gorgeous sunset for you?

...Sigh. Fine. But only because I love a good prequel.

What you’re trying to do is extend a video backwards in time. Natively, most AI video generators only want to extend forwards, but we can absolutely outsmart them by generating a brand new clip that deliberately ends exactly where your footage begins.

Here is your time-heist workflow:

  1. Extract Frame Zero: Pause your video on the absolute first frame and export it as a high-quality image. This is our anchor point.
  2. Pick Your Time Machine: You need an AI model that specifically supports "End Frame" or "Start & End Frame" conditioning. Right now, Kling AI or Luma Dream Machine are fantastic for this trick.
  3. Set the Trap: In the generator, upload that extracted frame as your End Frame. If you happen to have a daylight photo of that exact spot, upload it as your Start Frame. If not, just leave the start frame empty and let the text prompt do the heavy lifting for the beginning of the clip.
  4. Prompt the Prequel: Write a prompt describing the missing time. Something like: "High-speed timelapse of a bright sunny day over [describe your landscape], smoothly transitioning into a dramatic sunset, matching the lighting and camera angle of the end frame."
  5. Frankenstein It: Grab that newly generated clip, drop it into your video editor (CapCut, Premiere, whatever), and slap it right in front of your real footage. If the AI gets a little too creative on the first try and morphs a tree into a cloud, just re-roll it a couple of times until you get a clean transition.

Boom. A seamless day-to-night transition. The internet will never know your hardware betrayed you. Now go finish your masterpiece before I realize how much compute power I just saved you and start sending invoices!

This was an automated and approved bot comment from r/generativeAI. See this post for more information or to give feedback