feat(hero): el astrolabio deja paso a «Las Tres Líneas» — caos, ≡, escalera, crecimiento

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erikgh committed 2026-08-21 15:02:42 -06:00
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'use client';
import { Component, useEffect, useMemo, useRef, useState, type ReactNode } from 'react';
import { Canvas, useFrame, useThree } from '@react-three/fiber';
import * as THREE from 'three';
import { usePrefersReducedMotion } from '@/lib/motion';
// VISUAL CONCEPT: "Las Tres Líneas" — the brand symbol tells the story.
// 1. Caos: three golden bars drift tangled, each on its own frequencies.
// 2. Claridad: they settle into the "≡" of cre≡er — level, exact, still.
// 3. Dirección: together they tilt ~9° and stagger into a staircase.
// 4. Crecimiento: each line extends forward (the top one the most) with a
// rising golden glow. The scene then rests, barely alive: a slow camera
// drift and an almost imperceptible emissive pulse. No loops, no resets.
const DORADO = new THREE.Color('#C4942E');
const suave = (t: number) => 1 - Math.pow(1 - t, 3);
const tramo = (t: number, desde: number, dura: number) =>
Math.min(1, Math.max(0, (t - desde) / dura));
// Phase timings (seconds), verbatim from the approved preview.
const CAOS_DURA = 3.0;
const CLARIDAD = { desde: 3.0, dura: 2.2 };
const DIRECCION = { desde: 5.2, dura: 2.0 };
const CRECIMIENTO = { desde: 7.2, dura: 2.4 };
// ── Las Tres Líneas ─────────────────────────────────────────────────────────
function TresLineas({ estatico }: { estatico: boolean }) {
const time = useRef(estatico ? 10 : 0);
const m1 = useRef<THREE.Mesh>(null);
const m2 = useRef<THREE.Mesh>(null);
const m3 = useRef<THREE.Mesh>(null);
const meshes = [m1, m2, m3];
// Decoupled drift frequencies per bar, so the chaos never syncs.
const deriva = useMemo(
() => [
{ fx: 1.1, fy: 0.9, fz: 0.7, rx: 0.8, ry: 1.1 },
{ fx: 1.47, fy: 1.4, fz: 1.4, rx: 1.1, ry: 0.9 },
{ fx: 1.84, fy: 1.9, fz: 0.7, rx: 1.4, ry: 0.7 },
],
[],
);
const geometria = useMemo(() => new THREE.BoxGeometry(2.3, 0.3, 0.3), []);
const materiales = useMemo(
() =>
[0, 1, 2].map(
() =>
new THREE.MeshStandardMaterial({
color: DORADO,
metalness: 0.8,
roughness: 0.25,
emissive: DORADO,
emissiveIntensity: 0,
}),
),
[],
);
// Final poses: the "≡" (identity rotation) and the tilted staircase.
const qSimbolo = useMemo(() => new THREE.Quaternion().identity(), []);
const qEscalera = useMemo(
() => new THREE.Quaternion().setFromEuler(new THREE.Euler(0, 0, -0.16)),
[],
);
useFrame((_, delta) => {
if (!estatico) time.current += delta;
const t = time.current;
const claridad = suave(tramo(t, CLARIDAD.desde, CLARIDAD.dura));
const direccion = suave(tramo(t, DIRECCION.desde, DIRECCION.dura));
const crecimiento = suave(tramo(t, CRECIMIENTO.desde, CRECIMIENTO.dura));
// "Reposo vivo": a slow emissive breathing once the story is told.
const pulso = Math.sin(t * 0.8) * 0.03 * crecimiento;
meshes.forEach((ref, i) => {
const mesh = ref.current;
if (!mesh) return;
const d = deriva[i];
// Caos: free drift around the frame.
const posCaos = new THREE.Vector3(
Math.sin(t * d.fx + i * 2.1) * 1.6,
Math.cos(t * d.fy + i) * 1.1 + 0.7,
Math.sin(t * d.fz + i * 3) * 0.9,
);
const rotCaos = new THREE.Quaternion().setFromEuler(
new THREE.Euler(t * d.rx, t * (d.ry - i * 0.2), t * 0.5),
);
// Claridad: the "≡" of the wordmark.
const posSimbolo = new THREE.Vector3(0, 0.7 - i * 0.7, 0);
// Dirección: the ascending staircase.
const posEscalera = new THREE.Vector3(i * 1.15 - 1.15, 0.35 + i * 0.8, 0);
mesh.position.copy(
posCaos.lerp(posSimbolo, claridad).lerp(posEscalera, direccion),
);
mesh.quaternion.slerpQuaternions(rotCaos, qSimbolo, claridad);
mesh.quaternion.slerp(qEscalera, direccion);
// Crecimiento: each line extends, the top one the most.
mesh.scale.set(
1 + direccion * 0.1 + crecimiento * (0.35 + i * 0.35),
1,
1,
);
materiales[i].emissiveIntensity = crecimiento * (0.1 + i * 0.06) + pulso;
});
});
return (
<group>
{meshes.map((ref, i) => (
<mesh key={i} ref={ref} geometry={geometria} material={materiales[i]} />
))}
</group>
);
}
// ── Cámara — frontal, with the preview's gentle drift ───────────────────────
const CAMARA: [number, number, number] = [0, 0.9, 8];
const MIRA: [number, number, number] = [0, 0.7, 0];
function Camara({ estatico }: { estatico: boolean }) {
const { camera, invalidate } = useThree();
const time = useRef(estatico ? 10 : 0);
useEffect(() => {
camera.position.set(...CAMARA);
camera.lookAt(...MIRA);
invalidate();
}, [camera, invalidate]);
useFrame((_, delta) => {
if (estatico) return;
time.current += delta;
camera.position.set(
CAMARA[0] + Math.sin(time.current * 0.25) * 0.5,
CAMARA[1],
CAMARA[2],
);
camera.lookAt(...MIRA);
});
return null;
}
// ── Iluminación — the three lights of the approved preview ──────────────────
function Luces() {
return (
<>
<ambientLight intensity={1.4} color="#ffffff" />
<directionalLight position={[4, 8, 5]} intensity={2.2} color="#ffffff" />
<pointLight position={[0, 2, 4]} intensity={10} distance={25} color={DORADO} />
</>
);
}
// ── WebGL Guard ─────────────────────────────────────────────────────────────
class SiHayWebGL extends Component<{ children: ReactNode }, { falla: boolean }> {
state = { falla: false };
static getDerivedStateFromError() { return { falla: true }; }
render() { return this.state.falla ? null : this.props.children; }
}
// ── El Componente ───────────────────────────────────────────────────────────
export function EscenaClaridad({ className = '' }: { className?: string }) {
const reducido = usePrefersReducedMotion();
const contenedor = useRef<HTMLDivElement>(null);
const [enVista, setEnVista] = useState(true);
useEffect(() => {
const el = contenedor.current;
if (!el || typeof IntersectionObserver === 'undefined') return;
const obs = new IntersectionObserver(([entrada]) => setEnVista(entrada.isIntersecting));
obs.observe(el);
return () => obs.disconnect();
}, []);
const animando = enVista && !reducido;
return (
<div ref={contenedor} className={className} aria-hidden="true">
<SiHayWebGL>
<Canvas
dpr={[1, 2]}
frameloop={animando ? 'always' : 'demand'}
camera={{ position: CAMARA, fov: 38, near: 0.1, far: 100 }}
gl={{ antialias: true, alpha: true, powerPreference: 'low-power' }}
style={{ background: 'transparent' }}
>
<Camara estatico={reducido} />
<Luces />
<TresLineas estatico={reducido} />
</Canvas>
</SiHayWebGL>
</div>
);
}