remocn — Introducing remocn (shaders cut)

import React from "react";
import { AbsoluteFill, Easing, Img, Sequence, Series, interpolate, spring, useCurrentFrame, useVideoConfig } from "remotion";
import { demoAsset } from "@/lib/demo-assets";
import {
  TransitionSeries,
  linearTiming,
  type TransitionPresentation,
  type TransitionPresentationComponentProps,
} from "@remotion/transitions";
import { loadFont as loadSans } from "@remotion/google-fonts/Manrope";
import { loadFont as loadMono } from "@remotion/google-fonts/GeistMono";

import { ScaleDownFade } from "@/components/remocn/scale-down-fade";
import { ShortSlideRight } from "@/components/remocn/short-slide-right";
import { KineticCenterBuild } from "@/components/remocn/kinetic-center-build";
import { LineByLineSlide } from "@/components/remocn/line-by-line-slide";

import { ShaderSimplexNoise } from "@/components/remocn/shader-simplex-noise";
import { ShaderSwirl } from "@/components/remocn/shader-swirl";
import { ShaderDithering } from "@/components/remocn/shader-dithering";
import { ShaderColorPanels } from "@/components/remocn/shader-color-panels";
import { ShaderWarp } from "@/components/remocn/shader-warp";
import { ShaderMeshGradient } from "@/components/remocn/shader-mesh-gradient";
import { ShaderVoronoi } from "@/components/remocn/shader-voronoi";
import { ShaderMetaballs } from "@/components/remocn/shader-metaballs";
import { ShaderGodRays } from "@/components/remocn/shader-god-rays";
import { ShaderSmokeRing } from "@/components/remocn/shader-smoke-ring";

// Bind Manrope to the CSS variable the remocn typography components read.
const { fontFamily: SANS_FAMILY } = loadSans("normal", {
  subsets: ["latin"],
  weights: ["400", "500", "600", "700", "800"],
});
const { fontFamily: MONO_FAMILY } = loadMono("normal", {
  subsets: ["latin"],
  weights: ["400", "500"],
});

const SANS =
  "var(--font-geist-sans), -apple-system, BlinkMacSystemFont, sans-serif";
const MONO = `${MONO_FAMILY}, ui-monospace, SFMono-Regular, monospace`;

// The shipped remocn.dev brand: warm obsidian + one lime accent.
const OBSIDIAN = "#141318";
const INK = "#f2f2f2";
const MUTED = "rgba(242,242,242,0.62)";
const FAINT = "rgba(242,242,242,0.4)";
const LIME = "#C3E88D";

const clampOpts = {
  extrapolateLeft: "clamp" as const,
  extrapolateRight: "clamp" as const,
};

// ---------------------------------------------------------------------------
// Scene timings (frames @ 30fps). Transitions overlap.
// Shader covers run fade-in (12f) → opaque hold (~500ms) → fade-out, so the
// shader itself gets read as a moment, not a flash.
// ---------------------------------------------------------------------------
const S_PAIN = 208; //     two scale-down-fade pain lines + room for the swirl
const S_MEET = 150; //     "Meet Remocn"
const S_TAGLINE = 76; //   "Cinematic video components for React"
const S_POS = 96; //       kinetic "Like shadcn/ui, for video"
const REG_BEAT = 26; //    one fullscreen shader per hard cut
const S_VALUE = 104; //    three value lines
const S_INSTALL_TITLE = 70; // "It lands in your repo"
const S_INSTALL_CMD = 176; //  typed command + 3D name rolodex
const S_OUTRO = 150; //    smoke ring blooms → mark + wordmark + url

// Paced like the paper-shaders OutroScene: unwind ~34f, hold ~22f, wind ~38f.
const T_SWIRL = 104; //    shader-swirl cover (twist 1→0 → hold → 0→1)
const T_DITHER = 40; //    lime dither dissolve (held mid-frame)
const T_X = 14; //         crossfade
const T_BLUR = 16; //      blur crossfade

// ===========================================================================
// The remocn mark — the real brand asset from remocn.dev/logo.svg,
// downloaded to public/remocn-logo.svg.
// ===========================================================================
const RemocnMark: React.FC<{ size: number }> = ({ size }) => (
  <Img
    src={demoAsset("remocn-logo.svg")}
    style={{ width: size, height: size, display: "block" }}
  />
);

// Readability scrim over a backdrop shader.
const Scrim: React.FC<{ strength?: number }> = ({ strength = 1 }) => (
  <AbsoluteFill
    style={{
      background: `radial-gradient(120% 120% at 50% 42%, rgba(20,19,24,${
        0.3 * strength
      }) 0%, rgba(20,19,24,${0.78 * strength}) 100%)`,
    }}
  />
);

// ===========================================================================
// Scene 1 — Pain. Two lines land solo on the shared backdrop.
// ===========================================================================
const PainScene: React.FC = () => (
  <AbsoluteFill>
    <Sequence durationInFrames={60}>
      <ScaleDownFade
        text="Every launch needs a video"
        fontSize={54}
        fontWeight={400}
        color={INK}
      />
    </Sequence>
    <Sequence from={60} durationInFrames={60}>
      <ScaleDownFade
        text="Yours shouldn't take a week"
        fontSize={54}
        fontWeight={400}
        color={INK}
      />
    </Sequence>
  </AbsoluteFill>
);

// ===========================================================================
// Scene 2 — Meet Remocn. The text itself is static on entry (the swirl
// cover's exit reveals it with a z-axis scale), then it plays its own exit —
// fading up and out — so the tagline never overlaps it.
// ===========================================================================
const MeetScene: React.FC = () => {
  const frame = useCurrentFrame();
  const { durationInFrames } = useVideoConfig();

  const exitP = interpolate(
    frame,
    [durationInFrames - 18, durationInFrames - 2],
    [0, 1],
    { ...clampOpts, easing: Easing.in(Easing.cubic) },
  );

  return (
    <AbsoluteFill style={{ alignItems: "center", justifyContent: "center" }}>
      <span
        style={{
          fontFamily: SANS,
          fontWeight: 400,
          fontSize: 76,
          letterSpacing: "-0.03em",
          color: INK,
          opacity: 1 - exitP,
          transform: `translateY(${exitP * -10}px) scale(${1 - exitP * 0.05})`,
          filter: `blur(${exitP * 6}px)`,
        }}
      >
        Meet Remocn
      </span>
    </AbsoluteFill>
  );
};

// ===========================================================================
// Scene 3 — Tagline. Enters via short-slide-right only after Meet Remocn
// has fully exited (hard cut between the scenes, no overlap).
// ===========================================================================
const TaglineScene: React.FC = () => (
  <AbsoluteFill>
    <ShortSlideRight
      text="Cinematic video components for React"
      fontSize={48}
      fontWeight={400}
      color={INK}
    />
  </AbsoluteFill>
);

// ===========================================================================
// Scene 4 — Positioning. The mental model assembles word by word.
// ===========================================================================
const PositioningScene: React.FC = () => (
  <AbsoluteFill>
    <Sequence from={24}>
      <KineticCenterBuild
        text="Like shadcn/ui, for video"
        fontSize={62}
        fontWeight={400}
        color={INK}
      />
    </Sequence>
  </AbsoluteFill>
);

// ===========================================================================
// Scene 5 — The registry montage. Six shaders hard-cut, one category each.
// ===========================================================================
type RegistryBeat = { label: string; node: React.ReactNode };

const REGISTRY_BEATS: RegistryBeat[] = [
  {
    label: "Text animations",
    node: (
      <ShaderColorPanels
        speed={2}
        colorBack={OBSIDIAN}
        colors={["#39364d", "#55506e", "#7d76a0", "#a49dcb"]}
        density={3}
        length={1.1}
      />
    ),
  },
  {
    label: "Transitions",
    node: (
      <ShaderWarp
        speed={2}
        colors={["#141318", "#2c2a38", "#5b5773", "#b9b4d6"]}
        swirl={0.6}
      />
    ),
  },
  {
    label: "Backgrounds",
    node: (
      <ShaderMeshGradient
        speed={2}
        colors={["#141318", "#2b2a3a", "#565170", "#8f88ae"]}
        distortion={0.8}
        swirl={0.2}
      />
    ),
  },
  {
    label: "UI blocks",
    node: (
      <ShaderVoronoi
        speed={2}
        colors={["#232130", "#3d3a52", "#6b6590", "#a9a2cf"]}
        colorGap="#0d0c10"
        glow={0.1}
      />
    ),
  },
  {
    label: "UI primitives",
    node: (
      <ShaderMetaballs
        speed={2}
        colorBack={OBSIDIAN}
        colors={["#4a4661", "#7d76a0", "#C3E88D", "#e6e2f5"]}
      />
    ),
  },
  {
    label: "Shaders",
    node: (
      <ShaderGodRays
        speed={2}
        colorBack="#0d0d10"
        colorBloom="#48522f"
        colors={["#C3E88D", "#e8f2d0", "#6a7550", "#39412a"]}
        intensity={0.9}
        bloom={0.5}
      />
    ),
  },
];

// The last beat carries the dither transition on top, so it gets its
// clean 26 frames back by absorbing the overlap.
const S_REGISTRY = REGISTRY_BEATS.length * REG_BEAT + T_DITHER;

const RegistryLabel: React.FC<{ label: string }> = ({ label }) => {
  const frame = useCurrentFrame();
  const opacity = interpolate(frame, [0, 7], [0, 1], clampOpts);
  const y = interpolate(frame, [0, 8], [10, 0], {
    ...clampOpts,
    easing: Easing.out(Easing.cubic),
  });
  const blur = interpolate(frame, [0, 7], [6, 0], clampOpts);
  return (
    <AbsoluteFill style={{ alignItems: "center", justifyContent: "center" }}>
      <span
        style={{
          fontFamily: SANS,
          fontWeight: 400,
          fontSize: 58,
          letterSpacing: "-0.03em",
          color: INK,
          opacity,
          transform: `translateY(${y}px)`,
          filter: `blur(${blur}px)`,
        }}
      >
        {label}
      </span>
    </AbsoluteFill>
  );
};

const RegistryScene: React.FC = () => (
  <AbsoluteFill style={{ background: OBSIDIAN }}>
    <Series>
      {REGISTRY_BEATS.map((beat, i) => (
        <Series.Sequence
          key={beat.label}
          durationInFrames={
            i === REGISTRY_BEATS.length - 1 ? REG_BEAT + T_DITHER : REG_BEAT
          }
        >
          <AbsoluteFill style={{ background: OBSIDIAN }}>
            {beat.node}
            <Scrim strength={0.7} />
            <RegistryLabel label={beat.label} />
          </AbsoluteFill>
        </Series.Sequence>
      ))}
    </Series>
  </AbsoluteFill>
);

// ===========================================================================
// Scene 6 — The numbers. Three claims accumulate as a block.
// ===========================================================================
const ValueScene: React.FC = () => (
  <AbsoluteFill>
    <Sequence from={24}>
      <LineByLineSlide
        text={"110+ components\nOne command to install\nThe code is yours"}
        fontSize={50}
        fontWeight={400}
        color={INK}
      />
    </Sequence>
  </AbsoluteFill>
);

// ===========================================================================
// Scene 7a — Install title. Its own typographic beat; plays its own exit so
// the command scene starts on an empty canvas.
// ===========================================================================
const InstallTitleScene: React.FC = () => {
  const frame = useCurrentFrame();
  const { durationInFrames } = useVideoConfig();

  const exitP = interpolate(
    frame,
    [durationInFrames - 18, durationInFrames - 2],
    [0, 1],
    { ...clampOpts, easing: Easing.in(Easing.cubic) },
  );

  return (
    <AbsoluteFill
      style={{
        opacity: 1 - exitP,
        transform: `translateY(${exitP * -10}px) scale(${1 - exitP * 0.05})`,
        filter: `blur(${exitP * 6}px)`,
      }}
    >
      <ShortSlideRight
        text="It lands in your repo"
        fontSize={50}
        fontWeight={400}
        color={INK}
      />
    </AbsoluteFill>
  );
};

// ===========================================================================
// Scene 7b — Install command. The command types itself; once typing lands,
// the package name becomes a 3D rolodex and flips through other registry
// components — any component, same command.
// ===========================================================================
const CMD = "npx shadcn add @remocn/";
const PKG_NAMES = [
  "kinetic-center-build",
  "per-character-rise",
  "shader-warp",
  "command-menu",
  "claude-chat",
];
const CMD_START = 10;
const FLIP_START = 56; // first flip, after the typed command has settled
const FLIP_PER = 24; //  one name every 24 frames
const FLIP_DUR = 10; //  the 3D flip itself

const InstallCmdScene: React.FC = () => {
  const frame = useCurrentFrame();

  const full = CMD + PKG_NAMES[0];
  const typed = Math.max(
    0,
    Math.min(full.length, Math.floor((frame - CMD_START) * 1.5)),
  );
  const visible = full.slice(0, typed);
  const cmdOpacity = interpolate(
    frame,
    [CMD_START - 4, CMD_START],
    [0, 1],
    clampOpts,
  );
  const typingDone = typed >= full.length;
  const caretOn = typingDone ? Math.floor(frame / 15) % 2 === 0 : true;