Chuyển cảnh gradient

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/gradient-transition.json

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

claude mcp add --transport http gimgs https://gimgs.net/mcp
# then: search_motion_templates / get_motion_template("gradient-transition")

Use the video-shotcraft shot recipe "Chuyển cảnh gradient" (Remotion composition, Apache-2.0) published on gimgs.net.
Recipe JSON (prompt = timing/easing/parameter table/pitfalls, files = TSX source): https://gimgs.net/motion/gradient-transition.json
Raw TSX: https://gimgs.net/motion/gradient-transition/template.html
Repository: https://github.com/Vincentwei1021/video-shotcraft  (component: demos/transition/gradient-transition/GradientTransition.tsx; imports demos/_fixtures and assets/lib)
Spec: 1920x1080, 30 fps, 6.5s

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/gradient-transition/GradientTransition.tsx =====
// gradient-transition — Gradient Transition 渐变过渡（motion-lab 定稿转原生 Remotion）
// 背景在三类 CSS 渐变之间平滑过渡：linear 段插值角度+色标，radial 段插值中心+半径，
// conic 段旋转彩虹；等价"解析 gradient 字符串逐参数插值"的配方，中央 pill 标注当前段。
// 设计坐标 480×270（DesignStage 等比放大），参数表数值以此坐标系标定。
import React from 'react';
import { DesignStage, E, lerp, seg, useT } from '../../_fixtures/Motion';

export const GRADIENT_TRANSITION_DURATION = 180; // 6000ms @30fps

const hsl = (h: number, s: number, l: number) => `hsl(${h},${s}%,${l}%)`;
type H3 = [number, number, number];
// hsl 三元组按分量插值
const mixH = (a: H3, b: H3, k: number): H3 => [lerp(k, a[0], b[0]), lerp(k, a[1], b[1]), lerp(k, a[2], b[2])];

const layerStyle = (background: string, opacity: number): React.CSSProperties => ({
  position: 'absolute',
  inset: 0,
  background,
  opacity,
});

export const GradientTransition: React.FC = () => {
  const t = useT();

  // Phase 1: linear —— 角度 40°→230°，两组色标 hsl 插值
  const p1 = seg(t, 0, 0.4, E.inOutQuad);
  const ang = lerp(p1, 40, 230);
  const l1c1 = mixH([340, 88, 60], [160, 78, 52], p1);
  const l1c2 = mixH([265, 80, 52], [205, 92, 58], p1);
  const bg1 = `linear-gradient(${ang}deg, ${hsl(...l1c1)}, ${hsl(...l1c2)})`;

  // Phase 2: radial —— 中心 (28%,66%)→(72%,32%)，半径 45%→85%
  const p2 = seg(t, 0.33, 0.7, E.inOutQuad);
  const cx = lerp(p2, 28, 72), cy = lerp(p2, 66, 32), rr = lerp(p2, 45, 85);
  const l2c1 = mixH([45, 95, 62], [285, 85, 58], p2);
  const l2c2 = mixH([220, 60, 14], [230, 55, 10], p2);
  const bg2 = `radial-gradient(circle ${rr}% at ${cx}% ${cy}%, ${hsl(...l2c1)}, ${hsl(...l2c2)})`;

  // Phase 3: conic —— from 角度旋转的彩虹环（首尾同色可无缝循环）
  const p3 = seg(t, 0.66, 1, E.inOutQuad);
  const from = p3 * 300;
  const bg3 = `conic-gradient(from ${from}deg at 50% 50%,
    hsl(0,85%,60%), hsl(60,85%,60%), hsl(120,75%,55%), hsl(180,80%,55%),
    hsl(240,85%,62%), hsl(300,85%,60%), hsl(0,85%,60%))`;

  return (
    <DesignStage bg="#0a0b10">
      {/* 三层渐变依次交叉淡入淡出 */}
      <div style={layerStyle(bg1, 1 - seg(t, 0.3, 0.38))} />
      <div style={layerStyle(bg2, seg(t, 0.3, 0.38) - seg(t, 0.63, 0.71))} />
      <div style={layerStyle(bg3, seg(t, 0.63, 0.71))} />
      {/* 中央 pill：标注当前渐变类型 */}
      <div
        style={{
          position: 'absolute',
          left: '50%',
          top: '50%',
          transform: 'translate(-50%,-50%)',
          padding: '6px 18px',
          borderRadius: 999,
          background: 'rgba(8,9,14,.55)',
          color: '#fff',
          fontFamily: '-apple-system,system-ui,sans-serif',
          fontSize: 13,
          letterSpacing: 4,
          fontWeight: 700,
          backdropFilter: 'blur(4px)',
        }}
      >
        {t < 0.34 ? 'LINEAR' : t < 0.67 ? 'RADIAL' : 'CONIC'}
      </div>
    </DesignStage>
  );
};

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/gradient-transition/GradientTransition.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.