technique · 2 recipes
Iris Transition (Iris In / Out)
An animated aperture-shaped matte points to a detail, closes the first view and opens a second without changing lens focal length.
Selected recipe
Iris
This is the default recipe for the Iris Matte 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: Animate an opaque circular matte over complete plates; preserve underlying image geometry and define the center and open/closed endpoints.
Iris: An animated aperture-shaped matte points to a detail, closes the first view and opens a second without changing lens focal length. Keep the subject readable; motivate camera and light.
Technique guide
- When to use
- Reach for Iris when you need this effect: An animated aperture-shaped matte points to a detail, closes the first view and opens a second without changing lens focal length.
- How it works
- Animate an opaque circular matte over complete plates; preserve underlying image geometry and define the center and open/closed endpoints.
- Common mistakes
- If the result does not follow this rule, it is not this technique: Animate an opaque circular matte over complete plates; preserve underlying image geometry and define the center and open/closed endpoints. Do not change multiple variables at once so the effect becomes unreadable.
How to read this page
Iris Transition (Iris In / Out) is one technique in Editing. 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.
Prompt versions
Same technique, different prompts. Version A is the latest prompt; older versions are the exact prompts that kept clips were made from. Each version shows every model that used it.
Version A · latest：Locksmith closes up → new bench next day (iris)
Version A · Scene of this version (English, verbatim)
A locksmith closes shop, then begins work at a different bench the following morning.
The full prompt of every version comes with the member recipe.
sha256 fa556f4eb89d
Recipe
8 seconds · multi shot
A silent-comedy homage, 1925: at closing time the little locksmith in a flat cap notices one key missing from his rack; the iris closes on his worried eye and opens the next morning on the new key he has cut to replace it.
Shot cards
The full recipe for Iris is a shot card
The full recipe for Iris 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
- Match Cut
FreeMatch CutA match cut connects distinct shots through a visible correspondence that also carries an intelligible relationship. - Jump Cut
Jump CutRemoving intervals inside a similar camera setup creates a conspicuous time jump rather than a continuous speed change. - Cross-Cutting (Parallel Editing)
Cross-Cutting (Parallel Editing)Cross-cutting alternates continuing action lines to invite a relationship in time while preserving each location's geography. - 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. - Matte Shot
Matte ShotA matte combines a live or generated foreground with a separately built environment extension while hiding their join.
More in Editing
References
Sources we studied for this technique. External links; we don't embed them.
Articles & definitions
- Wikipedia: Iris shot
Wikipedia · Web
Circle closes to black around a detail (iris-out) or opens from one (iris-in); silent-era staple.
- StudioBinder: What is a wipe transition?
StudioBinder · Web
Iris wipe as a shaped wipe.
Videos
- The Magnificent Ambersons: iris-out on the horseless carriage
@LostPrintMovie · 2021-06-03 · X
Welles ends a snowy scene in The Magnificent Ambersons by closing the iris on the horseless carriage.
- Adobe After Effects: Iris wipe transition
@AdobeAE · 2020-05-01 · X
Iris wipe transition to focus attention.
Images & stills
- Scorsese and the iris shot
@CinemaTweets1 · 2024-06-02 · X
Iris shot: an old-fashioned optical effect beloved by D.W. Griffith that begins or ends with a small circle around a crucial detail; Scorsese still uses it.
- The Magnificent Ambersons: iris as memory
@afterglow2046 · 2018-11-28 · X
The Ambersons iris reads as memory imposing itself on the drama.