# Before/After UI Wipe — effect skill for UI walkthroughs

> **For AI agents:** find the right skill in one call — `curl -s "https://varg.ai/how-to/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://varg.ai/how-to/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.

A divider sweeps across one screen, turning the old version into the new one underneath.

- **Type:** [Effect](https://varg.ai/how-to/effects.md) · [UI walkthroughs](https://varg.ai/how-to/browse/skills/ui.md)
- **Slug:** `before-after-ui-wipe`
- **Status:** live
- **Publisher:** HeyGen (community)
- **License:** Apache-2.0
- **Source:** https://github.com/heygen-com/hyperframes/tree/main/registry/components/before-after-wipe
- **Works in:** Claude Code, Claude.ai, Codex, Cursor, OpenClaw, Gemini CLI, Any MCP client, varg Studio
- **Requires:** ffmpeg, HyperFrames (npx hyperframes), Remotion, CapCut (by hand)
- **Cost:** Free — the take renders locally; generated footage, if any, bills by the model

## What it does

Built on [Before After Wipe](https://github.com/heygen-com/hyperframes/tree/main/registry/components/before-after-wipe) by HeyGen (HyperFrames), Apache-2.0. The write-up and recipes below are varg's.

Two aligned screenshots stacked; a thin vertical line with a handle travels left to right; labels "Before" and "After" in the corners.

**When:** Redesigns, AI clean-ups, automation (messy spreadsheet → clean report).

**Watch out:** Do not compare screenshots that are not pixel-aligned; any shift makes the wipe look broken.

**Timing:** Wipe 1.0–1.5 s power2.inOut; optional pause at 50% for 0.5 s.

**Also called:** comparison slider, split wipe, old vs new UI

### In FFmpeg

```bash
ffmpeg -loop 1 -t 3 -i before.png -loop 1 -t 3 -i after.png -filter_complex "[0][1]xfade=transition=wiperight:duration=1.2:offset=1" out.mp4
```

### In HyperFrames

```bash
npx hyperframes add before-after-wipe
```
Drop the two images into the block's slots; tween `--split` from 0 to 100%.

### In Remotion

```tsx
const x = interpolate(frame,[0,40],[0,100],{extrapolateRight:'clamp',easing:Easing.inOut(Easing.quad)});
<Img src={after}/><Img src={before} style={{position:'absolute',inset:0,clipPath:`inset(0 0 0 ${x}%)`}}/>
```

### In CapCut

Put "after" over "before"; Mask → Linear (rotated 90°) on the top clip and keyframe its position across.

### Ready-made components

- [Before After Wipe](https://skills.varg.ai/component/hf.before-after-wipe/) (hyperframes): npx hyperframes add before-after-wipe
- [Comparison Split](https://skills.varg.ai/component/hf.comparison-split/) (hyperframes): npx hyperframes add comparison-split
- [Page Slide](https://skills.varg.ai/component/hf.page-slide/) (hyperframes): npx hyperframes add page-slide

### Where this comes from

- [FFmpeg filters documentation (timeline enable, drawtext, zoompan, overlay)](https://ffmpeg.org/ffmpeg-filters.html)
- [Bohdan Motion: Secureframe launch video, one pain per scene](https://x.com/bohdanmotion/status/2069369111231049803)

## Use when

- Redesigns, AI clean-ups, automation (messy spreadsheet → clean report).

## Not for

- Do not compare screenshots that are not pixel-aligned; any shift makes the wipe look broken.

## Install

- Claude Code: `claude plugin marketplace add vargHQ/skills && claude plugin install varg@varg`
- Codex: `npx skills add vargHQ/skills --skill varg-video-edit-library -a codex -y`
- Cursor: `npx skills add vargHQ/skills --skill varg-video-edit-library -a cursor -y`

## Example output

https://s3.varg.ai/how-to/previews/5eef833a12e2/take-before-after-ui-wipe.mp4 — The Before After Wipe component rendered as installed (npx hyperframes add before-after-wipe), defaults only (credit: Rendered by varg · HyperFrames Before After Wipe, https://hyperframes.heygen.com/catalog/components/before-after-wipe)

## More UI walkthroughs skills

- [Zoom to the Action](https://varg.ai/how-to/skills/zoom-to-the-action.md): The full app establishes, then the camera pushes 1.5–2× into the part being used and eases back out.
- [3D Tilted Dashboard Reveal](https://varg.ai/how-to/skills/tilted-dashboard-reveal.md): The dashboard rises from a steep 3D tilt to flat, like a screen lifting toward the viewer.
- [Floating UI Panels in Depth](https://varg.ai/how-to/skills/floating-ui-panels.md): The interface splits into its panels, which float apart in depth with parallax, then snap back.
- [UI Builds Itself Piece by Piece](https://varg.ai/how-to/skills/ui-builds-itself.md): Grey skeleton blocks pulse once, then real cards, charts and text fill in with a stagger.
- [Card Expands Into Detail](https://varg.ai/how-to/skills/card-expands-to-detail.md): A small card grows into a full detail panel in one continuous shape change.
- [Filmed Off a Monitor](https://varg.ai/how-to/skills/filmed-off-a-monitor.md): The UI looks filmed on a real display: slight perspective, focus falloff and glare.

## Run the generation on varg

varg is one API key for the models these skills drive — Seedance 2.5, Kling 4, Veo 3.1, Wan 3, Nano Banana 2.1, GPT Image 2.5, ElevenLabs v4 and 200+ more — billed in credits, with a cost estimate before anything runs.

- Claude Code: `claude plugin marketplace add vargHQ/skills && claude plugin install varg@varg` (skill + hosted MCP)
- Codex, Cursor, Gemini CLI, OpenClaw: `npx skills add vargHQ/skills --skill varg-ai -a <agent> -y`
- Grok and any agent that reads SKILL.md: `npx skills add vargHQ/skills --skill varg-ai`, or point it at the skill's SKILL.md
- Claude.ai, ChatGPT, any MCP client: connect `https://mcp.varg.ai/mcp`
- API key: https://varg.ai/dashboard/api · Model specs: https://varg.ai/models/llms.txt