Self-host rotating Earth video, project red Paris-Tana line in 3D
Replace the Pexels stock clip with a higher-quality Earth-from-space loop hosted in /videos (720p, 60s, slowed 2x, 12 MB). The static SVG arc is gone — the route is now computed every frame from a 3D projection that follows the globe's rotation: - France (48.85N, 2.35E) and Antananarivo (-18.9N, 47.5E) are placed on a unit sphere, then rotated around the Y axis to match the apparent central longitude of the video at each frame (LON0=140 deg, omega =-5.75 deg/s, calibrated empirically from sample frames). - A great-circle arc is sampled with slerp and projected orthographically; only the front-side portion (z > 0) is drawn. - Pins fade out when their city rotates behind the globe; the whole group fades out when both endpoints are on the back side. Mouse parallax dropped — it would desync the SVG from the video and break alignment. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
MVA Global Fret
parent
e23cc9ee33
commit
8033c0fd02
@ -1,7 +1,7 @@
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/* =========================================================================
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PARALLAX INTRO — MVA Global Fret
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Page unique, fixe (pas de scroll). Vidéo Terre depuis l'espace + ligne rouge
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Paris↔Antananarivo + bouton centré. Bouge à la souris.
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Page unique, fixe (pas de scroll). Vidéo Terre rotative + ligne rouge 3D
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Paris ↔ Antananarivo (suit la rotation du globe) + bouton centré.
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========================================================================= */
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:root {
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@ -11,8 +11,6 @@
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--gold-light: #e0c98a;
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--red: #ff2a3d;
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--white: #fff;
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--mx: 0;
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--my: 0;
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}
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* { box-sizing: border-box; margin: 0; padding: 0; }
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@ -92,54 +90,37 @@ html, body {
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overflow: hidden;
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}
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/* Video et SVG partagent EXACTEMENT le même cadrage object-fit:cover.
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C'est ce qui garantit que la ligne 3D reste alignée avec la Terre. */
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.layer {
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position: absolute;
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inset: -10% -10%;
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inset: 0;
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width: 100%;
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height: 100%;
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pointer-events: none;
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will-change: transform;
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}
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/* ──────────────────────────────────────────────────────────────────────────
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COUCHE 1 — VIDÉO Terre depuis l'espace (Pexels 854275, libre)
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Bouge le PLUS à la souris (effet de profondeur).
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────────────────────────────────────────────────────────────────────────── */
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.layer-video {
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width: 120%;
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height: 120%;
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object-fit: cover;
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object-position: center;
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filter: brightness(0.85) saturate(1.1) hue-rotate(-10deg);
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transform: translate(calc(var(--mx) * -45px), calc(var(--my) * -45px)) scale(1.05);
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}
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/* ──────────────────────────────────────────────────────────────────────────
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COUCHE 2 — Voile bleu nuit (palette MVA)
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────────────────────────────────────────────────────────────────────────── */
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.layer-tint {
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background:
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radial-gradient(ellipse at center, rgba(20, 20, 50, 0.35) 0%, rgba(5, 5, 24, 0.85) 100%),
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linear-gradient(180deg, rgba(10, 10, 30, 0.55) 0%, rgba(5, 5, 24, 0.7) 100%);
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inset: 0;
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radial-gradient(ellipse at center, transparent 0%, rgba(5, 5, 24, 0.55) 100%),
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linear-gradient(180deg, rgba(5, 5, 24, 0.25) 0%, rgba(5, 5, 24, 0.5) 100%);
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}
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/* ──────────────────────────────────────────────────────────────────────────
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COUCHE 4 — Route Paris ↔ Antananarivo (ligne rouge fine)
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Bouge légèrement (entre vidéo et bouton), donne une 3ème profondeur.
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────────────────────────────────────────────────────────────────────────── */
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.layer-route {
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inset: 0;
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transform: translate(calc(var(--mx) * -12px), calc(var(--my) * -12px));
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display: block;
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}
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.layer-route svg { width: 100%; height: 100%; display: block; }
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/* ──────────────────────────────────────────────────────────────────────────
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BOUTON CTA centré — "Accéder au site"
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Bouge en sens INVERSE des couches → effet de tilt.
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────────────────────────────────────────────────────────────────────────── */
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/* ── BOUTON CTA centré ──────────────────────────────────────────────────── */
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.cta-btn {
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position: absolute;
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top: 50%;
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left: 50%;
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transform: translate(-50%, -50%);
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z-index: 10;
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display: inline-flex;
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align-items: center;
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@ -159,22 +140,18 @@ html, body {
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0 20px 60px rgba(197, 165, 90, 0.55),
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0 0 0 0 rgba(197, 165, 90, 0.4),
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inset 0 1px 0 rgba(255, 255, 255, 0.45);
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transition: box-shadow 0.32s cubic-bezier(0.2, 0.8, 0.2, 1);
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/* Bouge légèrement en sens opposé des couches arrière (effet 3D) */
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transform: translate(
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calc(-50% + var(--mx) * 8px),
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calc(-50% + var(--my) * 8px)
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);
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transition: box-shadow 0.32s cubic-bezier(0.2, 0.8, 0.2, 1),
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transform 0.32s cubic-bezier(0.2, 0.8, 0.2, 1);
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}
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.cta-btn:hover {
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transform: translate(-50%, -50%) scale(1.04);
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box-shadow:
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0 28px 75px rgba(197, 165, 90, 0.7),
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0 0 0 12px rgba(197, 165, 90, 0.12),
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inset 0 1px 0 rgba(255, 255, 255, 0.55);
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}
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/* Effet shine au hover */
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.cta-btn-shine {
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position: absolute;
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top: 0; left: -120%;
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@ -192,7 +169,6 @@ html, body {
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}
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.cta-btn:hover i { transform: translateX(8px); }
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/* Pulse continu autour du bouton */
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.cta-btn::after {
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content: '';
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position: absolute;
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@ -203,8 +179,8 @@ html, body {
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pointer-events: none;
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}
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@keyframes ctaPulse {
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0% { transform: scale(1); opacity: 0.7; }
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100% { transform: scale(1.18); opacity: 0; }
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0% { transform: scale(1); opacity: 0.7; }
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100% { transform: scale(1.18); opacity: 0; }
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}
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/* ── RESPONSIVE ─────────────────────────────────────────────────────────── */
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@ -222,5 +198,4 @@ html, body {
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@media (prefers-reduced-motion: reduce) {
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.cta-btn::after { animation: none; }
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.layer-video, .layer-route, .cta-btn { transition: none; }
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}
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246
index.html
246
index.html
@ -28,73 +28,50 @@
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<main class="stage">
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<!-- Couche 1 : vidéo Terre depuis l'espace (parallaxe la plus marquée) -->
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<video class="layer layer-video"
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<video class="layer layer-video" id="earthVideo"
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autoplay loop muted playsinline preload="auto"
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poster="https://images.pexels.com/videos/854275/free-video-854275.jpg">
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<source src="https://videos.pexels.com/video-files/854275/854275-sd_960_540_30fps.mp4" type="video/mp4">
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poster="videos/earth-poster.jpg">
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<source src="videos/earth-rotation.mp4" type="video/mp4">
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</video>
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<!-- Couche 2 : voile bleu pour cohérence palette + lisibilité -->
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<div class="layer layer-tint"></div>
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<!-- Couche 4 : route Paris ↔ Antananarivo (ligne rouge brillante + pulse) -->
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<div class="layer layer-route">
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<svg viewBox="0 0 1600 900" preserveAspectRatio="xMidYMid slice" xmlns="http://www.w3.org/2000/svg">
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<defs>
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<filter id="redGlow" x="-50%" y="-50%" width="200%" height="200%">
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<feGaussianBlur stdDeviation="5" result="blur"/>
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<feMerge>
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<feMergeNode in="blur"/>
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<feMergeNode in="SourceGraphic"/>
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</feMerge>
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</filter>
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<linearGradient id="redLine" x1="0%" y1="0%" x2="100%" y2="100%">
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<stop offset="0%" stop-color="#ff5b6e" stop-opacity="0.55"/>
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<stop offset="50%" stop-color="#ff2a3d" stop-opacity="1"/>
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<stop offset="100%" stop-color="#ff5b6e" stop-opacity="0.55"/>
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</linearGradient>
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</defs>
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<svg class="layer layer-route" id="routeSvg"
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viewBox="0 0 1280 720" preserveAspectRatio="xMidYMid slice"
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xmlns="http://www.w3.org/2000/svg">
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<defs>
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<filter id="redGlow" x="-50%" y="-50%" width="200%" height="200%">
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<feGaussianBlur stdDeviation="6" result="blur"/>
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<feMerge>
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<feMergeNode in="blur"/>
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<feMergeNode in="SourceGraphic"/>
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</feMerge>
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</filter>
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<linearGradient id="redLine" x1="0%" y1="0%" x2="100%" y2="100%">
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<stop offset="0%" stop-color="#ff5b6e" stop-opacity="0.7"/>
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<stop offset="50%" stop-color="#ff2a3d" stop-opacity="1"/>
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<stop offset="100%" stop-color="#ff5b6e" stop-opacity="0.7"/>
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</linearGradient>
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</defs>
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<!-- Halo flou autour de la ligne -->
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<path d="M 430 270 Q 620 90 910 600"
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stroke="#ff2a3d" stroke-width="10" fill="none"
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opacity="0.25" filter="url(#redGlow)"/>
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<g id="routeGroup" opacity="0">
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<path id="routeHalo" d="" stroke="#ff2a3d" stroke-width="9" fill="none" opacity="0.3" filter="url(#redGlow)"/>
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<path id="routeLine" d="" stroke="url(#redLine)" stroke-width="2" fill="none" stroke-linecap="round" filter="url(#redGlow)"/>
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<circle id="pulseDot" r="4" fill="#fff" filter="url(#redGlow)"/>
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<!-- Ligne fine principale -->
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<path id="routePath" d="M 430 270 Q 620 90 910 600"
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stroke="url(#redLine)" stroke-width="1.5" fill="none"
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stroke-linecap="round"/>
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<!-- Pulse qui voyage de Paris vers Tana -->
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<circle r="5" fill="#fff" filter="url(#redGlow)">
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<animateMotion dur="3.6s" repeatCount="indefinite">
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<mpath href="#routePath"/>
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</animateMotion>
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<animate attributeName="opacity" values="0;1;1;0" keyTimes="0;0.1;0.9;1" dur="3.6s" repeatCount="indefinite"/>
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</circle>
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<circle r="11" fill="#ff2a3d" opacity="0.6" filter="url(#redGlow)">
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<animateMotion dur="3.6s" repeatCount="indefinite">
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<mpath href="#routePath"/>
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</animateMotion>
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<animate attributeName="opacity" values="0;0.6;0.6;0" keyTimes="0;0.1;0.9;1" dur="3.6s" repeatCount="indefinite"/>
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</circle>
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<!-- Points fixes Paris et Antananarivo -->
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<g transform="translate(430 270)">
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<circle r="14" fill="#ff2a3d" opacity="0.18"/>
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<circle r="6" fill="#ff2a3d" opacity="0.45" filter="url(#redGlow)"/>
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<circle r="3" fill="#fff"/>
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<g id="pinParis">
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<circle r="10" fill="#ff2a3d" opacity="0.18"/>
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<circle r="5" fill="#ff2a3d" opacity="0.55" filter="url(#redGlow)"/>
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<circle r="2.5" fill="#fff"/>
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</g>
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<g transform="translate(910 600)">
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<circle r="14" fill="#ff2a3d" opacity="0.18"/>
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<circle r="6" fill="#ff2a3d" opacity="0.45" filter="url(#redGlow)"/>
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<circle r="3" fill="#fff"/>
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<g id="pinTana">
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<circle r="10" fill="#ff2a3d" opacity="0.18"/>
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<circle r="5" fill="#ff2a3d" opacity="0.55" filter="url(#redGlow)"/>
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<circle r="2.5" fill="#fff"/>
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</g>
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</svg>
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</div>
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</g>
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</svg>
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<!-- Bouton centré : juste "Accéder au site" -->
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<a href="accueil.html" class="cta-btn">
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<span class="cta-btn-shine"></span>
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<span data-i18n="intro.ctaBtn">Accéder au site</span>
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@ -105,7 +82,7 @@
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<script src="js/translations.js"></script>
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<script>
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// ── i18n minimal ─────────────────────────────────────────────────────────
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/* i18n minimal ------------------------------------------------------- */
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(function () {
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const lang = localStorage.getItem('mva-lang') || 'fr';
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applyLang(lang);
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}
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})();
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// ── Mouse parallaxe avec easing ──────────────────────────────────────────
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/* Ligne rouge 3D synchronisée à la rotation de la Terre --------------
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Calibration empirique sur la vidéo earth-rotation.mp4 :
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- Centre de la Terre dans le frame 1280×720 : (640, 360)
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- Rayon visible : 340 px
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- Longitude centrale à t=0 : 140°E
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- Vitesse de rotation : -5.75°/s (apparent)
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La SVG utilise viewBox 1280×720 avec preserveAspectRatio="xMidYMid slice",
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même comportement que le video object-fit:cover → alignement parfait.
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-------------------------------------------------------------------- */
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(function () {
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const root = document.documentElement;
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let targetX = 0, targetY = 0, currentX = 0, currentY = 0;
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const ease = 0.06;
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const EARTH_CX = 640;
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const EARTH_CY = 360;
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const EARTH_R = 340;
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const LON0 = 140; // central longitude visible à t=0
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const ROT_RATE = -5.75; // °/s (négatif = view's central decreases)
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function loop() {
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currentX += (targetX - currentX) * ease;
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currentY += (targetY - currentY) * ease;
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root.style.setProperty('--mx', currentX.toFixed(4));
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root.style.setProperty('--my', currentY.toFixed(4));
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requestAnimationFrame(loop);
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const PARIS = { lat: 48.85, lon: 2.35 };
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const TANA = { lat: -18.9, lon: 47.5 };
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const video = document.getElementById('earthVideo');
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const routeGroup = document.getElementById('routeGroup');
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const halo = document.getElementById('routeHalo');
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const line = document.getElementById('routeLine');
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const pulseDot = document.getElementById('pulseDot');
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const pinParis = document.getElementById('pinParis');
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const pinTana = document.getElementById('pinTana');
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const DEG = Math.PI / 180;
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// 3D unit-sphere vector (y axis = north pole, rotation around y)
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function toCart(latDeg, lonDeg) {
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const la = latDeg * DEG, lo = lonDeg * DEG;
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return [Math.cos(la) * Math.sin(lo),
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Math.sin(la),
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Math.cos(la) * Math.cos(lo)];
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}
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function rotateY(v, angDeg) {
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const a = angDeg * DEG, c = Math.cos(a), s = Math.sin(a);
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return [v[0]*c + v[2]*s, v[1], -v[0]*s + v[2]*c];
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}
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function project(v) {
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return {
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x: EARTH_CX + v[0] * EARTH_R,
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y: EARTH_CY - v[1] * EARTH_R,
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z: v[2] // > 0 = front side
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};
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}
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// Slerp on great circle
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function slerp(a, b, t) {
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const dot = Math.max(-1, Math.min(1, a[0]*b[0] + a[1]*b[1] + a[2]*b[2]));
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const omega = Math.acos(dot);
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if (omega < 1e-6) return [a[0], a[1], a[2]];
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const s = Math.sin(omega);
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const c1 = Math.sin((1 - t) * omega) / s;
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const c2 = Math.sin(t * omega) / s;
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return [a[0]*c1 + b[0]*c2, a[1]*c1 + b[1]*c2, a[2]*c1 + b[2]*c2];
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}
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loop();
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window.addEventListener('mousemove', (e) => {
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targetX = (e.clientX / window.innerWidth - 0.5) * 2;
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targetY = (e.clientY / window.innerHeight - 0.5) * 2;
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}, { passive: true });
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const parisVec = toCart(PARIS.lat, PARIS.lon);
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const tanaVec = toCart(TANA.lat, TANA.lon);
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window.addEventListener('deviceorientation', (e) => {
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if (e.gamma == null || e.beta == null) return;
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targetX = Math.max(-1, Math.min(1, e.gamma / 30));
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targetY = Math.max(-1, Math.min(1, (e.beta - 45) / 30));
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}, { passive: true });
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// Pre-compute great-circle samples in original (unrotated) space
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const SAMPLES = 60;
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const arcVecs = [];
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for (let i = 0; i <= SAMPLES; i++) arcVecs.push(slerp(parisVec, tanaVec, i / SAMPLES));
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function update() {
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// Time source : video.currentTime (loops automatically). Fallback : Date.now()
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const t = (video && !isNaN(video.currentTime)) ? video.currentTime : (performance.now() / 1000);
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// We rotate the world by -(LON0 + ROT_RATE * t) so that the visible
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// central longitude at time t equals (LON0 + ROT_RATE * t).
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const rotAngle = -(LON0 + ROT_RATE * t);
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const pPar = project(rotateY(parisVec, rotAngle));
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const pTan = project(rotateY(tanaVec, rotAngle));
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// Build the visible portion of the arc
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let pathD = '';
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let allPoints = [];
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let visibleCount = 0;
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for (const v of arcVecs) {
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const p = project(rotateY(v, rotAngle));
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allPoints.push(p);
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if (p.z > 0) visibleCount++;
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}
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if (visibleCount === arcVecs.length) {
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// Fully visible → smooth single path
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pathD = 'M ' + allPoints[0].x.toFixed(1) + ' ' + allPoints[0].y.toFixed(1);
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for (let i = 1; i < allPoints.length; i++) {
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pathD += ' L ' + allPoints[i].x.toFixed(1) + ' ' + allPoints[i].y.toFixed(1);
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}
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} else {
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// Partial → only emit the consecutive visible run(s)
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let segOpen = false;
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for (let i = 0; i < allPoints.length; i++) {
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const p = allPoints[i];
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if (p.z > 0) {
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if (!segOpen) {
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pathD += (pathD ? ' M ' : 'M ') + p.x.toFixed(1) + ' ' + p.y.toFixed(1);
|
||||
segOpen = true;
|
||||
} else {
|
||||
pathD += ' L ' + p.x.toFixed(1) + ' ' + p.y.toFixed(1);
|
||||
}
|
||||
} else {
|
||||
segOpen = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
line.setAttribute('d', pathD);
|
||||
halo.setAttribute('d', pathD);
|
||||
|
||||
// Pin positions + visibility
|
||||
pinParis.setAttribute('transform', 'translate(' + pPar.x.toFixed(1) + ' ' + pPar.y.toFixed(1) + ')');
|
||||
pinTana .setAttribute('transform', 'translate(' + pTan.x.toFixed(1) + ' ' + pTan.y.toFixed(1) + ')');
|
||||
pinParis.style.opacity = pPar.z > 0 ? 1 : 0;
|
||||
pinTana .style.opacity = pTan.z > 0 ? 1 : 0;
|
||||
|
||||
// Pulse dot — travels Paris → Tana along visible portion in 3.6s loops
|
||||
const pulseT = (t / 3.6) % 1;
|
||||
let idx = Math.floor(pulseT * SAMPLES);
|
||||
if (idx > SAMPLES) idx = SAMPLES;
|
||||
const pPulse = allPoints[idx];
|
||||
if (pPulse && pPulse.z > 0) {
|
||||
pulseDot.setAttribute('cx', pPulse.x.toFixed(1));
|
||||
pulseDot.setAttribute('cy', pPulse.y.toFixed(1));
|
||||
pulseDot.style.opacity = Math.min(1, pPulse.z * 2);
|
||||
} else {
|
||||
pulseDot.style.opacity = 0;
|
||||
}
|
||||
|
||||
// Group opacity = fade out when both pins are on the back side
|
||||
const visFactor = Math.max(0, Math.min(1, (Math.max(pPar.z, pTan.z) + 0.05) * 4));
|
||||
routeGroup.setAttribute('opacity', visFactor.toFixed(2));
|
||||
|
||||
requestAnimationFrame(update);
|
||||
}
|
||||
requestAnimationFrame(update);
|
||||
})();
|
||||
</script>
|
||||
</body>
|
||||
|
||||
BIN
videos/earth-poster.jpg
Normal file
BIN
videos/earth-poster.jpg
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 52 KiB |
BIN
videos/earth-rotation.mp4
Normal file
BIN
videos/earth-rotation.mp4
Normal file
Binary file not shown.
Loading…
Reference in New Issue
Block a user