Chữ làm mặt nạ video

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/text-as-mask.json

git clone https://github.com/Vincentwei1021/video-shotcraft
# component: demos/opening/text-as-mask/TextAsMask.tsx
npx remotion render <CompositionId> out.mp4

claude mcp add --transport http gimgs https://gimgs.net/mcp
# then: search_motion_templates / get_motion_template("text-as-mask")

Use the video-shotcraft shot recipe "Chữ làm mặt nạ video" (Remotion composition, Apache-2.0) published on gimgs.net.
Recipe JSON (prompt = timing/easing/parameter table/pitfalls, files = TSX source): https://gimgs.net/motion/text-as-mask.json
Raw TSX: https://gimgs.net/motion/text-as-mask/template.html
Repository: https://github.com/Vincentwei1021/video-shotcraft  (component: demos/opening/text-as-mask/TextAsMask.tsx; imports demos/_fixtures and assets/lib)
Spec: 1920x1080, 30 fps, 5.06s

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/opening/text-as-mask/TextAsMask.tsx =====
// 文字视频遮罩（text-as-mask）——kinetische typografie
// 深底上超粗大字 "SCALE"，字形内部用 CSS alpha mask 套住 FakeDashboard：
// 0–20f hold 读布景；20–100f dashboard 在字内匀速 translateX +110→-110（scale 1.15）；
// 100–130f 单段 bezier：mask 层 scale 1→26 放大溢出（内容层用 1/S 反向抵消不畸变），
// 同时无遮罩全屏层淡入接管，dashboard 1.15→1.0 归位；130–150f 全屏静止收尾。
import React from 'react';
import { useCurrentFrame, interpolate, Easing } from 'remotion';
import { FakeDashboard, G } from '../../_fixtures/Fixtures';

const MASK_SVG = `<svg xmlns="http://www.w3.org/2000/svg" width="1920" height="1080"><text x="960" y="666" font-family="Helvetica, Arial, sans-serif" font-size="360" font-weight="900" letter-spacing="-8" text-anchor="middle" fill="white">SCALE</text></svg>`;
const MASK_URL = `url("data:image/svg+xml,${encodeURIComponent(MASK_SVG)}")`;
// mask 放大原点：取字母 L 的竖笔位置（约 61.5% 处），保证放大时原点落在实心笔画内
const ORIGIN = '61.5% 50%';

export const TextAsMask: React.FC = () => {
  const f = useCurrentFrame();
  const clamp = { extrapolateLeft: 'clamp', extrapolateRight: 'clamp' } as const;

  // 结尾撤场进度：100–130f 单段 bezier
  const endT = interpolate(f, [100, 130], [0, 1], {
    ...clamp,
    easing: Easing.bezier(0.4, 0, 0.2, 1),
  });

  // dashboard 内容运动：20–100f 匀速漂移，100–130f 归位到全屏
  const driftX = interpolate(f, [20, 100], [110, -110], clamp);
  const dx = f < 100 ? driftX : interpolate(endT, [0, 1], [-110, 0]);
  const dashS = interpolate(endT, [0, 1], [1.15, 1]);

  // mask 层放大（内容层反向抵消，dashboard 不跟着几何畸变）
  const maskS = interpolate(endT, [0, 1], [1, 26]);
  // 无遮罩全屏层淡入，保证接管彻底
  const cover = interpolate(endT, [0.25, 0.9], [0, 1], clamp);
  // 底部小注释：撤场时淡出
  const caption = interpolate(f, [100, 114], [1, 0], clamp);

  const dashMotion: React.CSSProperties = {
    position: 'absolute',
    inset: 0,
    transform: `translateX(${dx}px) scale(${dashS})`,
    transformOrigin: '50% 50%',
  };

  return (
    <div style={{ width: 1920, height: 1080, background: G.ink, position: 'relative', overflow: 'hidden' }}>
      {/* 遮罩层：wrapper 负责 mask + 放大；inner 用 1/S 反向缩放抵消内容形变 */}
      <div
        style={{
          position: 'absolute',
          inset: 0,
          transform: `scale(${maskS})`,
          transformOrigin: ORIGIN,
          WebkitMaskImage: MASK_URL,
          maskImage: MASK_URL,
          WebkitMaskRepeat: 'no-repeat',
          maskRepeat: 'no-repeat',
          WebkitMaskSize: '1920px 1080px',
          maskSize: '1920px 1080px',
        }}
      >
        <div style={{ position: 'absolute', inset: 0, transform: `scale(${1 / maskS})`, transformOrigin: ORIGIN }}>
          <div style={dashMotion}>
            <FakeDashboard variant="A" />
          </div>
        </div>
      </div>

      {/* 接管层：同一运动变换的全屏 dashboard，撤场时淡入到 1 */}
      <div style={{ position: 'absolute', inset: 0, opacity: cover }}>
        <div style={dashMotion}>
          <FakeDashboard variant="A" />
        </div>
      </div>

      {/* 底部小注释 */}
      <div
        style={{
          position: 'absolute',
          bottom: 90,
          width: '100%',
          textAlign: 'center',
          fontFamily: 'Helvetica, Arial, sans-serif',
          fontWeight: 700,
          fontSize: 30,
          letterSpacing: 10,
          color: G.mid,
          opacity: caption,
        }}
      >
        TEXT AS MASK
      </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/opening/text-as-mask/TextAsMask.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.