technique · 1 recipe
Video Feedback
A camera's own live display is re-imaged repeatedly, producing nested frames and delayed recursive motion.
Selected recipe
Feedback
This is the default recipe for the Recursive Video Feedback family.
Free short AI video prompt
A starter line you can copy. The full timed recipe, still-image and production prompts are on the shot card.
Prompt rule: Re-image the preceding screen generation through a fixed transform with a declared delay and sub-unity gain; contain recursion inside the monitor.
Feedback: A camera's own live display is re-imaged repeatedly, producing nested frames and delayed recursive motion. Keep the subject readable; motivate camera and light.
Technique guide
- When to use
- Reach for Feedback when you need this effect: A camera's own live display is re-imaged repeatedly, producing nested frames and delayed recursive motion.
- How it works
- Re-image the preceding screen generation through a fixed transform with a declared delay and sub-unity gain; contain recursion inside the monitor.
- Common mistakes
- If the result does not follow this rule, it is not this technique: Re-image the preceding screen generation through a fixed transform with a declared delay and sub-unity gain; contain recursion inside the monitor. Do not change multiple variables at once so the effect becomes unreadable.
How to read this page
Video Feedback is one technique in Optical Effects. The definition states the single mechanism the frame has to show. The technique guide covers when to use it, the steps, the usual mistakes, how it differs from the neighbors, and what a successful take looks like.
The clip above is one reading, made with a third-party video model. Another model, or the same model on another day, can land on a different frame. It is an example, not a promise that a prompt will match it.
The free short prompt is a starter sentence. The shot card is the timed recipe: scene, start and end frames, action, light, and color. Three sample cards are free on the site. The rest are part of GrokCine Pro. A second name for the same shot keeps its own URL and points back at this definition.
When you write a prompt, keep the one mechanism in the definition, then name the subject, the motion, and why the light is there. Do not stack a neighboring technique into the same sentence. If the name or the example is wrong, send this page's URL from the contact page.
Recipe
8 seconds · single take
SoHo, 1973: in her loft studio, a young video artist lifts a white card beside a monitor showing her camera's own live output, and the gesture tumbles down an endless corridor of screens.
Shot cards
The full recipe for Feedback is a shot card
The full recipe for Feedback is a shot card. The start and end frames, timed action, lighting and color specs, a camera parameter table, copy-ready still-image and video prompts and negatives are open to GrokCine Pro members on the web.
Related families
- Lens Flare
Lens FlareStray light inside the imaging optics creates source-dependent ghosts or veiling glare that changes when the source is blocked. - Double Exposure
Double ExposureTwo image records coexist within the same frame through a controlled blend, instead of trading places as a transition. - Split Screen
Split ScreenTwo separately photographed or generated image fields are visible at the same time within one composed frame.
More in Optical Effects
References
Sources we studied for this technique. External links; we don't embed them.
Articles & definitions
- Wikipedia: Video feedback
Wikipedia · Web
Video feedback is the recursive loop formed when a camera views its own output display.
Videos
- Video feedback: camera pointed at its own monitor
@Rainmaker1973 · 2021-01-19 · X
Video feedback: a camera filming its own monitor creates endless nested, swirling patterns.
- Ghostbusters: Afterlife ghost trails in After Effects
@ABAOProductions · 2021-08-03 · X
Ghost/echo trails — delayed copies of motion.