Hexagon iris grows from the speaker's mouth to a colour card

A small dark hexagon appears at the speaker's mouth, then scales over about 0.28 s until it fills the frame and becomes a mint card with a larger hexagon shape. Closing out a talking head on a keyword card that stays to the end of the clip (seen at 5.75-6.0 s of 7.7 s).

Use this transition between my clips: "Hexagon iris grows from the speaker's mouth to a colour card" from the 24fps video editor library.
Preset JSON: https://24fps.dev/video-editor/transitions/hex-iris-grow-from-speaker-mouth-e3x/preset.json (pass its "preset" to the engine).
Engine (MIT, no dependencies, ES module): https://24fps.dev/editor/engine.js. Download the engine next to your page (curl -O) rather than importing cross-origin, then import { mount } from "./engine.js" in a <script type="module"> served over http.
Wiring: root = a position:relative box at the video's size. media = { a, b }: two wrappers holding clip A and clip B, both filling the root. Clip A plays first; the cut happens at preset.at (1.6s) over preset.dur (0.28s), so start clip B at preset.at. Then const fx = mount(root, { kind: "transition", preset, media }) and call fx.render(seconds) every frame. It is seek-safe: drive it from the GSAP timeline in HyperFrames or call render(frame / fps) in Remotion. Before capturing frames, await (fx.ready ?? document.fonts.ready).
Field reference: https://24fps.dev/video-editor/llms.txt. Keep sizes as fractions of the frame height so it works at any resolution. Credit: 24fps.dev/video-editor
Same idea
Also called: Lift (AI Edit)
Technique
Shape iris starting from the face area, a common AI-edit way to introduce a card.
Footage
Man talking to camera, Pexels

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