Cắt vòng tròn khớp iris

Mọi thứ trên trang này đều có bản máy đọc. Đưa agent link JSON, hoặc thêm MCP server gimgs rồi bảo nó tìm motion template.

1. Tải JSON — trong đó có công thức cảnh quay (timing, easing, bảng tham số, lỗi hay gặp) và toàn bộ source TSX.
2. Clone repo video-shotcraft; component import fixture chung từ demos/_fixtures và helper từ assets/lib.
3. Đăng ký component thành <Composition> trong project Remotion rồi render bằng `npx remotion render`, hoặc dựng lại công thức bằng engine của bạn.

curl -s https://gimgs.net/motion/circle-match-iris.json

git clone https://github.com/Vincentwei1021/video-shotcraft
# component: demos/transition/circle-match-iris/CircleMatchIris.tsx
npx remotion render <CompositionId> out.mp4

claude mcp add --transport http gimgs https://gimgs.net/mcp
# then: search_motion_templates / get_motion_template("circle-match-iris")

Use the video-shotcraft shot recipe "Cắt vòng tròn khớp iris" (Remotion composition, Apache-2.0) published on gimgs.net.
Recipe JSON (prompt = timing/easing/parameter table/pitfalls, files = TSX source): https://gimgs.net/motion/circle-match-iris.json
Raw TSX: https://gimgs.net/motion/circle-match-iris/template.html
Repository: https://github.com/Vincentwei1021/video-shotcraft  (component: demos/transition/circle-match-iris/CircleMatchIris.tsx; imports demos/_fixtures and assets/lib)
Spec: 1920x1080, 30 fps, 4.72s

1. Read the JSON and follow its "prompt" section (when to use, intention, parameter table, known pitfalls).
2. Adapt it for: <describe what you want>.
3. Either clone the repo, register the component as a <Composition> in a Remotion project and run npx remotion render <CompositionId> out.mp4 — or re-implement the recipe in your own engine (HTML/WAAPI works: keep the same timing and easing).

JSON · Markdown · llms.txt

// ===== demos/transition/circle-match-iris/CircleMatchIris.tsx =====
// 圆心匹配光圈切(match-cut × iris-reveal 组合):
// 帧 0–30:景 A(列表面板)hold,第 2 行 44px 圆形头像做两次脉冲 + 扩散光环提示"看这里";
// 帧 30–75:景 B 以 clip-path: circle(r at CX CY) 从 22px 炸开到 2100px(Easing.inOut(cubic)),
//   景 B 是深色圆环图表页,圆环半径同步从 22px 长到 170px——在光圈吃满全屏前就"接住"头像的圆;
// 帧 45–100:圆环描边 sweep 到 78%,中央大数字随之浮现计数;帧 100–140 全属性静止收尾(≥35f)。
// 命门:两景的圆严格同心——CX/CY 写死为 FakeDashboard B 第 2 行头像的屏幕坐标常量。
import React from 'react';
import { useCurrentFrame, interpolate, Easing } from 'remotion';
import { FakeDashboard, G } from '../../_fixtures/Fixtures';

// FakeDashboard variant B 第 2 行左侧 44px 头像的圆心(手算自 fixture 布局)
const CX = 308;
const CY = 384.8;

export const CircleMatchIris: React.FC = () => {
  const f = useCurrentFrame();

  // ---- 景 A:头像脉冲(帧 0–30,两次呼吸) ----
  const pulseT = Math.min(f, 30) / 30;
  const scale = f < 30 ? 1 + 0.45 * Math.abs(Math.sin(pulseT * Math.PI * 2)) : 1;
  // 两道扩散光环
  const waves = [0, 14].map((start) => {
    const p = interpolate(f, [start, start + 16], [0, 1], {
      extrapolateLeft: 'clamp', extrapolateRight: 'clamp',
    });
    return { r: 22 + p * 40, o: f < start + 16 ? 0.85 * (1 - p) : 0 };
  });

  // ---- 光圈:景 B 从同一圆心炸开 ----
  const irisR = interpolate(f, [30, 75], [22, 2100], {
    easing: Easing.inOut(Easing.cubic),
    extrapolateLeft: 'clamp', extrapolateRight: 'clamp',
  });

  // ---- 景 B 圆环:半径从 22 长到 170,"接住"头像的圆 ----
  const ringR = interpolate(f, [30, 70], [22, 170], {
    easing: Easing.inOut(Easing.cubic),
    extrapolateLeft: 'clamp', extrapolateRight: 'clamp',
  });
  const ringW = interpolate(f, [30, 70], [12, 40], {
    extrapolateLeft: 'clamp', extrapolateRight: 'clamp',
  });
  // 描边 sweep 到 78%
  const sweep = interpolate(f, [45, 100], [0, 0.78], {
    easing: Easing.out(Easing.cubic),
    extrapolateLeft: 'clamp', extrapolateRight: 'clamp',
  });
  const circ = 2 * Math.PI * ringR;
  const num = Math.round(sweep * 100);
  const numOpacity = interpolate(f, [68, 88], [0, 1], {
    extrapolateLeft: 'clamp', extrapolateRight: 'clamp',
  });
  const furnitureOpacity = interpolate(f, [60, 85], [0, 1], {
    extrapolateLeft: 'clamp', extrapolateRight: 'clamp',
  });

  return (
    <div style={{ width: 1920, height: 1080, position: 'relative', overflow: 'hidden', background: G.bg }}>
      {/* ===== 景 A:列表面板 ===== */}
      <FakeDashboard variant="B" />
      {/* 白色补丁盖住 fixture 自带的圆角方块,再叠真正的圆形头像 */}
      <div style={{ position: 'absolute', left: CX - 23, top: CY - 23, width: 46, height: 46, background: G.card }} />
      <div style={{
        position: 'absolute', left: CX - 22, top: CY - 22, width: 44, height: 44,
        borderRadius: 22, background: G.mid, border: `3px solid ${G.ink}`,
        boxSizing: 'border-box', transform: `scale(${scale})`,
      }} />
      {/* 脉冲扩散光环 */}
      <svg width={1920} height={1080} style={{ position: 'absolute', left: 0, top: 0 }}>
        {waves.map((w, i) => (
          <circle key={i} cx={CX} cy={CY} r={w.r} fill="none" stroke={G.ink} strokeWidth={4} opacity={w.o} />
        ))}
      </svg>

      {/* ===== 景 B:深色圆环图表页,从同一圆心以光圈长出 ===== */}
      {f >= 30 && (
        <div style={{
          position: 'absolute', left: 0, top: 0, width: 1920, height: 1080,
          background: G.ink,
          clipPath: `circle(${irisR}px at ${CX}px ${CY}px)`,
        }}>
          {/* 圆环 donut:圆心与头像严格同点 */}
          <svg width={1920} height={1080} style={{ position: 'absolute', left: 0, top: 0 }}>
            {/* 底轨 */}
            <circle cx={CX} cy={CY} r={ringR} fill="none" stroke="#5a5a58" strokeWidth={ringW} />
            {/* sweep 弧,从正上方起 */}
            <circle
              cx={CX} cy={CY} r={ringR} fill="none" stroke="#ececea"
              strokeWidth={ringW} strokeLinecap="round"
              strokeDasharray={`${sweep * circ} ${circ}`}
              transform={`rotate(-90 ${CX} ${CY})`}
            />
          </svg>
          {/* 中央大数字 */}
          <div style={{
            position: 'absolute', left: CX - 150, top: CY - 80, width: 300, height: 160,
            display: 'flex', flexDirection: 'column', alignItems: 'center', justifyContent: 'center',
            opacity: numOpacity,
          }}>
            <div style={{ fontFamily: 'Helvetica, Arial, sans-serif', fontWeight: 800, fontSize: 96, color: '#f2f2f0', letterSpacing: -2 }}>
              {num}%
            </div>
            <div style={{ marginTop: 6, height: 12, width: 130, background: '#6a6a68', borderRadius: 6 }} />
          </div>
          {/* 右侧页面家具:标题 + 统计条,证明这是一整页 */}
          <div style={{ position: 'absolute', left: 680, top: 260, opacity: furnitureOpacity, display: 'flex', flexDirection: 'column', gap: 30 }}>
            <div style={{ height: 34, width: 520, background: '#c2c2c0', borderRadius: 10 }} />
            <div style={{ height: 16, width: 780, background: '#5a5a58', borderRadius: 8 }} />
            <div style={{ height: 16, width: 640, background: '#5a5a58', borderRadius: 8 }} />
            <div style={{ height: 16, width: 700, background: '#5a5a58', borderRadius: 8 }} />
            <div style={{ display: 'flex', gap: 28, marginTop: 24 }}>
              {[0, 1, 2].map((i) => (
                <div key={i} style={{ width: 240, height: 150, background: '#454543', border: '2px solid #5a5a58', borderRadius: 14, padding: 20, boxSizing: 'border-box', display: 'flex', flexDirection: 'column', gap: 12 }}>
                  <div style={{ height: 12, width: `${55 + i * 12}%`, background: '#8f8f8d', borderRadius: 6 }} />
                  <div style={{ height: 30, width: '45%', background: '#c2c2c0', borderRadius: 8, marginTop: 'auto' }} />
                </div>
              ))}
            </div>
          </div>
        </div>
      )}
    </div>
  );
};

1. Read the recipe
   Prompt = when to use, intention, parameter table with typical values and how each one feels, known pitfalls. Treat values as calibrated starting points.
2. Get the code
   tool: git
   git clone https://github.com/Vincentwei1021/video-shotcraft && cd video-shotcraft && npm install
3. Register + render
   tool: remotion
   npx remotion render <CompositionId> out.mp4 # component: demos/transition/circle-match-iris/CircleMatchIris.tsx
4. Or re-implement
   Port the timing/easing from the recipe to HTML + WAAPI (gimgs motion contract) or any engine; keep the same segment windows and easing.