Transitions: agent skills for video transitions in CapCut, FFmpeg, Remotion and HyperFrames

For AI agents: find the right skill in one call — curl -s "https://skills.varg.ai/api/search?q=<what the person wants>" returns the matching how-to page and the best skills with install commands, as markdown (Russian works too). Full index: https://skills.varg.ai/llms.txt. Every page has a markdown twin: add .md to its path. Before generating anything, show the person the options on the how-to page.

Every way to join two shots: CapCut-style zooms, whips, glitches and masks, FFmpeg xfade, Remotion TransitionSeries, HyperFrames and GL shader transitions. 65 skills for Claude Code, Codex and Grok, by type: workflows take a brief to a finished video, effects and styles change how it looks, prompts and guides teach the agent the craft, models run the generation.

Skills (65)

Effects (60)

• Mix (Cross Dissolve) — HeyGen: The two shots blend through each other. The quietest transition: "time passes" or "this continues".
• Dip to Black — HeyGen: A fades to black, then B fades up. Marks the end of a section or a bigger jump in time.
• White Flash — HeyGen: The frame blows out to white for a moment and opens on the next shot. Energy, memory or a camera snap.
• Pull In (Zoom In) — HeyGen: The camera rushes into shot A and lands, still moving forward, in shot B. The signature short-form transition.
• Pull Out (Zoom Out) — HeyGen: The camera jerks backwards out of shot A and keeps pulling back as shot B settles in.
• Zoom Blur — rectalogic · GL Transitions: Both shots smear into a radial zoom blur that bursts open on the next shot.
• Whip Swipe — HeyGen: A fast synthetic pan with heavy motion blur pushes A off and B in. Fakes a whip pan between any two shots.
• Spin — bread · GL Transitions: The frame rotates fast around its centre (with blur) and comes out of the spin on the next shot.
• Camera Shake — HeyGen: A short violent shake (often with a zoom) hits on the cut, like an impact or a bass hit.
• Glitch — HeyGen: The frame tears into displaced slices, colour channels split and noise flickers as A breaks into B.
• Blur Through — HeyGen: A blurs out of focus, the shots swap at peak blur, and B pulls back into focus.
• Light Leak — HeyGen: A warm wash of orange/red light drifts across and blows out the frame at the cut, then fades on B.
• Film Burn — anastasia-dunbar · GL Transitions: Hot glowing holes or a flare burn across A like overheated film and reveal B.
• Light Sweep — HeyGen: A bright band or lens flare sweeps across the frame and the shot changes behind it.
• Chromatic Split — HeyGen: Red, green and blue channels pull apart around the cut, then snap back together on the new shot.
• Slide / Push — HeyGen: B pushes A out of frame (push), slides over it (cover) or A slides away to reveal B (reveal).
• Wipe — HeyGen: A moving edge replaces A with B across the frame while both images stay still.
• Circle Iris — HeyGen: B opens from (or A closes into) a growing circle, like an old-cartoon iris or a lens opening.
• Heart Mask — varg: B appears through a heart shape that grows to fill the frame. Social, playful and romantic.
• Ink and Brush Reveal — HeyGen: An organic ink blot, brush stroke or smoke plume spreads over A and B shows through the painted area.
• Gradient (Luma) Wipe — HeyGen: B appears in the order of a grayscale map (gradient, noise or the image's own brightness).
• 3D Cube — gre · GL Transitions: Both shots sit on faces of a cube that turns, carrying A away and B into view.
• 3D Flip — HeyGen: The frame flips over like a card; its back side is the next shot.
• Page Turn — hewlett-packard · GL Transitions: Shot A peels or turns like a page and the next shot lies underneath.
• Split and Slices — gre · GL Transitions: The frame breaks into bars that slide apart or open like doors, revealing the next shot.
• Shutter and Blinds — Kapish Dima · remocn: Stripes close over A like blinds or a shutter, then open on B.
• Pixelate — gre · GL Transitions: A breaks into ever larger pixels, swaps at the coarsest point, and B sharpens back.
• Clock Wipe — HeyGen: A hand sweeps around the centre like a clock, replacing A with B.
• Swirl Vortex — sergey-kosarevsky · GL Transitions: A twists into a spiral at the centre and unwinds as B.
• Squeeze and Stretch — HeyGen: A is squashed or stretched toward an edge or the centre and B springs out the same way.
• Ripple and Wave — pawel-plociennik · GL Transitions: Rings or waves distort the frame like water while the shots crossfade.
• Freeze Transition — HeyGen: Trend: freeze on a frame with a flash, cut out or zoom the subject, add a label, then cut to the next shot.
• Velocity Edit — HeyGen: Trend: speed curves on every clip (fast-slow-fast) synced to the beat, often with shake and flash on hits.
• FFmpeg xfade Chain for N Clips — varg: Chain xfade + acrossfade across N clips; offset of the k-th transition = d1+…+dk − k·T.
• FFmpeg xfade Transition Reference — varg: All 58 built-in xfade transitions plus custom expressions, grouped by look, with the options that matter.
• Normalize Clips Before xfade — varg: The #1 xfade failure: inputs differ in size, fps or timebase. Normalize every input first.
• GL Transitions via editly or FFmpeg — gre · GL Transitions: Run any of the ~125 GLSL gl-transitions between clips: editly (no custom build) or a patched FFmpeg.
• MoviePy Crossfade and Slide — varg: In MoviePy v2, crossfade with vfx.CrossFadeIn plus negative padding (or with_start in a CompositeVideoClip).
• Remotion TransitionSeries — varg: Sequence scenes with <TransitionSeries>; each transition overlaps its neighbours, so the video gets shorter.
• Remotion Custom Presentation — varg: Write your own transition as a component that receives progress (0→1) and whether it is entering or exiting.
• GL Transitions in Remotion — gre · GL Transitions: glTransition({name}) turns any gl-transitions shader into a TransitionSeries presentation.
• HyperFrames Shader Transition — HeyGen: Place a WebGL shader between two HyperFrames scenes with HyperShader.init({scenes, transitions}).
• HyperFrames Scene Transition (CSS) — HeyGen: Overlap two clips or sub-compositions on separate tracks and tween both wrappers at the same time T.
• HyperFrames Whip with Motion Blur — HeyGen: Fly scene A out and scene B in at matched velocity with directional blur peaking at the swap.
• OTIO and XML Handoff to NLEs — varg: Write the edit (clips, cuts, dissolves) as OpenTimelineIO and convert to XML so an editor can finish it in an NLE.
• CapCut Draft Automation — varg: Generate CapCut/JianYing drafts from code, with real CapCut transitions on each cut, then export in the app.
• DaVinci Resolve AddTransition API — varg: Resolve 21.1 added TimelineItem.AddTransition; earlier versions cannot add transitions by script.
• Cover and Reveal — HeyGen: B slides in over a still A (cover), or A slides away to uncover B (reveal). Variants: cover*/reveal* in four directions.
• Soft-Edge Wipe — HeyGen: A wipe with a wide, feathered edge so the two shots blend along a gradient. Variants: smoothleft/right/up/down.
• Circle Crop Through Black — Kapish Dima · remocn: A closes to a circle on black, then B opens from it — the cartoon “that’s all folks” beat.
• Box Crop Through Black — varg: A shrinks into a rectangle on black, B grows out of one. A boxy cousin of the iris.
• Color-Distance Blend — HeyGen: A blend that swaps pixels by how different their colours are, so similar areas change first.
• Pixel Dissolve — Kapish Dima · remocn: A dithered dissolve: B appears pixel by pixel in random noise instead of a smooth fade.
• Diagonal Wipe — pschroen · GL Transitions: A wipe that enters from a corner on a diagonal. Variants: diagtl, diagtr, diagbl, diagbr.
• Fade Through Gray — varg: A drains to black-and-white, crossfades to B in gray, and B regains its colour.
• Corner Wipe — varg: A rectangle grows from one corner until B fills the frame. Variants: wipetl, wipetr, wipebl, wipebr.
• Zoom Into Next — HeyGen: A scales up toward the viewer and fades, revealing B — the simple FFmpeg version of a zoom transition.
• Wind Wipe — gre · GL Transitions: A ragged, streaky wipe that blows A off the screen. Variants: hlwind, hrwind, vuwind, vdwind.
• Fast and Slow Fades — varg: Dissolves with a curve: fadefast commits to B early, fadeslow lingers on A. Exist in FFmpeg 7+.
• Custom xfade Expression — varg: Write your own transition as a per-pixel expression with xfade=transition=custom:expr=…

Guides (5)

• Video editing skills for Claude Code and AI agents — varg: 206 named edits with recipes for FFmpeg, HyperFrames, Remotion and CapCut: cuts, transitions, titles, UI, numbers.
• HyperFrames Registry — HeyGen: Pull any of ~450 ready-made blocks into a video as editable source: transitions, titles, captions, charts, 3D.
• Remotion Markup — Remotion: Write Remotion markup that animates well: timing, transitions, motion blur, effects, audio, fonts and 3D.
• JianYing MCP — hey-jian-wei: MCP server that creates JianYing drafts: tracks, clips, transitions, filters, masks, keyframes, audio fades.
• editly — Mikael Finstad: Declarative JSON5 video editing CLI/API: clips, titles, transitions, audio mixing, rendered with ffmpeg.