Đổi tốc độ và đóng băng chú thích

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/speed-ramp-freeze.json

git clone https://github.com/Vincentwei1021/video-shotcraft
# component: demos/rhythm/speed-ramp-freeze/FreezeAnnotateReal.tsx, demos/rhythm/speed-ramp-freeze/SpeedRampReal.tsx
npx remotion render <CompositionId> out.mp4

claude mcp add --transport http gimgs https://gimgs.net/mcp
# then: search_motion_templates / get_motion_template("speed-ramp-freeze")

Use the video-shotcraft shot recipe "Đổi tốc độ và đóng băng chú thích" (Remotion composition, Apache-2.0) published on gimgs.net.
Recipe JSON (prompt = timing/easing/parameter table/pitfalls, files = TSX source): https://gimgs.net/motion/speed-ramp-freeze.json
Raw TSX: https://gimgs.net/motion/speed-ramp-freeze/template.html
Repository: https://github.com/Vincentwei1021/video-shotcraft  (component: demos/rhythm/speed-ramp-freeze/FreezeAnnotateReal.tsx, demos/rhythm/speed-ramp-freeze/SpeedRampReal.tsx; imports demos/_fixtures and assets/lib)
Spec: 1920x1080, 30 fps, 4.54s

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/rhythm/speed-ramp-freeze/FreezeAnnotateReal.tsx =====
// freeze-annotate 定格标注（轮 G）——真实卡片流运动中定格，
// 马克笔琥珀圈注（feTurbulence 手绘抖动）圈住目标卡 + 箭头点题，解冻继续。
// remap：0–45 流动 → 45–100 定格（斜率0）→ 100–135 解冻（1.4x 补偿）。
import { useId } from 'react';
import { AbsoluteFill, Img, interpolate, staticFile, useCurrentFrame } from 'remotion';
import layout from '../../_textures/live-layout.json';

export const FREEZEANNOTATE_DUR = 135;

const CARD_W = 460;
const GAP = 60;
const RAIL = layout.projects.cards.slice(0, 9);
const TARGET_I = 5;
const AMBER = '#b45309';

export const FreezeAnnotateReal: React.FC = () => {
  const frame = useCurrentFrame();
  // 滤镜 ID 按实例生成，多实例同场不串引（useId 的 «:» 在 url() 里非法，需清洗）
  const roughId = `rough-${useId().replace(/[^a-zA-Z0-9]/g, '')}`;
  const src = interpolate(frame, [0, 45, 100, 135], [0, 45, 45, 94], {
    extrapolateLeft: 'clamp', extrapolateRight: 'clamp',
  });
  const dx = src * 22;
  const draw = interpolate(frame, [52, 60], [0, 1], { extrapolateLeft: 'clamp', extrapolateRight: 'clamp' });
  const arrowDraw = interpolate(frame, [60, 66], [0, 1], { extrapolateLeft: 'clamp', extrapolateRight: 'clamp' });
  const fade = interpolate(frame, [96, 104], [1, 0], { extrapolateLeft: 'clamp', extrapolateRight: 'clamp' });
  // 导轨起点 -880：定格时（dx=990）目标卡 k=5 中心 = -880+2600-990+230 = 960 屏中
  const X0 = -880;
  const targetX = X0 + TARGET_I * (CARD_W + GAP) - dx + CARD_W / 2;
  const C = 1750; // 椭圆周长近似
  return (
    <AbsoluteFill style={{ backgroundColor: '#f9f6f1', overflow: 'hidden' }}>
      <div style={{ position: 'absolute', top: 370, transform: `translateX(${-dx + X0}px)` }}>
        {Array.from({ length: 14 }).map((_, k) => {
          const c = RAIL[k % RAIL.length];
          const isTarget = k === TARGET_I;
          return (
            <Img
              key={k}
              src={staticFile(`textures/live/${isTarget ? 'card4-hires.png' : c.file}`)}
              style={{
                position: 'absolute', left: k * (CARD_W + GAP), top: 0,
                width: CARD_W, borderRadius: 12,
                boxShadow: '0 4px 16px rgba(31,28,23,0.10)',
              }}
            />
          );
        })}
      </div>
      <svg width={1920} height={1080} style={{ position: 'absolute', inset: 0, pointerEvents: 'none', opacity: fade }}>
        <defs>
          <filter id={roughId}>
            <feTurbulence type="fractalNoise" baseFrequency="0.02" numOctaves="2" seed="7" result="n" />
            <feDisplacementMap in="SourceGraphic" in2="n" scale="7" />
          </filter>
        </defs>
        <ellipse
          cx={targetX} cy={560} rx={290} ry={230}
          fill="none" stroke={AMBER} strokeWidth={8} strokeLinecap="round"
          strokeDasharray={C} strokeDashoffset={C * (1 - draw)}
          transform={`rotate(-6 ${targetX} 560)`}
          filter={`url(#${roughId})`}
        />
        <path
          d={`M ${targetX + 330} 190 Q ${targetX + 220} 240 ${targetX + 140} 320`}
          fill="none" stroke={AMBER} strokeWidth={8} strokeLinecap="round"
          strokeDasharray={420} strokeDashoffset={420 * (1 - arrowDraw)}
          filter={`url(#${roughId})`}
        />
      </svg>
    </AbsoluteFill>
  );
};


// ===== demos/rhythm/speed-ramp-freeze/SpeedRampReal.tsx =====
// speed-ramp 变速（轮 C）——真实卡片流帧号 remap：快(斜率2.2) →
// 0.2x 慢速展示窗 → 快。慢速窗中目标卡（card4-hires）清晰滑过屏中。
// blur 联动速率：快段包 blur、慢段不包，反差即"凝视感"。
import { AbsoluteFill, Img, interpolate, staticFile, useCurrentFrame } from 'remotion';
import { CameraMotionBlur } from '@remotion/motion-blur';
import layout from '../../_textures/live-layout.json';

export const SPEEDRAMP_DUR = 135;

const CARD_W = 460;
const GAP = 60;
const RAIL = layout.projects.cards.slice(0, 9);
const TARGET_I = 5;

const Scene: React.FC = () => {
  const frame = useCurrentFrame();
  // remap：0–40f 走 88 源帧（快），40–85f 走 9 源帧（0.2x），85–135f 走 110（快）
  const src = interpolate(frame, [0, 40, 85, 135], [0, 88, 97, 207], {
    extrapolateLeft: 'clamp', extrapolateRight: 'clamp',
  });
  const dx = src * 28;
  return (
    <AbsoluteFill style={{ backgroundColor: '#f9f6f1', overflow: 'hidden' }}>
      {/* 偏移 717：让慢速窗中点（src≈92.4，dx≈2587）时目标卡 k=5 中心落屏中 */}
      <div style={{ position: 'absolute', top: 360, transform: `translateX(${-dx + 717}px)` }}>
        {Array.from({ length: 16 }).map((_, k) => {
          const c = RAIL[k % RAIL.length];
          const isTarget = k === TARGET_I;
          return (
            <Img
              key={k}
              src={staticFile(`textures/live/${isTarget ? 'card4-hires.png' : c.file}`)}
              style={{
                position: 'absolute', left: k * (CARD_W + GAP), top: isTarget ? -16 : 0,
                width: CARD_W, borderRadius: 12,
                boxShadow: isTarget
                  ? '0 10px 32px rgba(31,28,23,0.18)'
                  : '0 4px 16px rgba(31,28,23,0.10)',
              }}
            />
          );
        })}
      </div>
    </AbsoluteFill>
  );
};

export const SpeedRampReal: React.FC = () => {
  const frame = useCurrentFrame();
  const fast = frame < 42 || frame > 83;
  return fast ? (
    <CameraMotionBlur shutterAngle={200} samples={20}>
      <Scene />
    </CameraMotionBlur>
  ) : (
    <Scene />
  );
};

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/rhythm/speed-ramp-freeze/FreezeAnnotateReal.tsx, demos/rhythm/speed-ramp-freeze/SpeedRampReal.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.