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chore: import upstream snapshot with attribution
2026-07-13 12:58:35 +08:00

392 lines
12 KiB
HTML
Vendored

<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Light Transitions Showcase</title>
<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background: #000;
overflow: hidden;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
/* Title Card */
#title-card {
position: absolute;
inset: 0;
z-index: 10;
background: linear-gradient(135deg, #0d1b2a 0%, #1b263b 100%);
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
opacity: 1;
}
#title-card h1 {
font-size: 72px;
font-weight: 800;
color: #fff;
letter-spacing: -1px;
opacity: 0;
transform: translateY(30px);
}
#title-card .subtitle {
font-size: 28px;
font-weight: 400;
color: rgba(255, 255, 255, 0.5);
margin-top: 12px;
opacity: 0;
transform: translateY(20px);
}
/* Scenes */
#scene1,
#scene2 {
position: absolute;
inset: 0;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
}
#scene1 {
background: #1b263b;
z-index: 2;
opacity: 0;
}
#scene2 {
background: #e07a5f;
z-index: 1;
opacity: 0;
}
.scene-number {
font-size: 180px;
font-weight: 900;
line-height: 1;
opacity: 0.12;
letter-spacing: -6px;
}
#scene1 .scene-number {
color: #fff;
}
#scene2 .scene-number {
color: #000;
}
.scene-label {
font-size: 48px;
font-weight: 700;
margin-top: -20px;
}
#scene1 .scene-label {
color: #fff;
}
#scene2 .scene-label {
color: #fff;
}
/* Info bar */
.info-bar {
position: absolute;
bottom: 0;
left: 0;
right: 0;
height: 80px;
display: flex;
align-items: center;
justify-content: space-between;
padding: 0 48px;
}
#scene1 .info-bar {
background: rgba(0, 0, 0, 0.3);
}
#scene2 .info-bar {
background: rgba(0, 0, 0, 0.2);
}
.info-bar .label {
font-size: 18px;
font-weight: 600;
color: rgba(255, 255, 255, 0.7);
text-transform: uppercase;
letter-spacing: 2px;
}
.info-bar .desc {
font-size: 16px;
color: rgba(255, 255, 255, 0.5);
font-style: italic;
}
/* Outro */
#outro {
position: absolute;
inset: 0;
z-index: 10;
background: linear-gradient(135deg, #0d1b2a 0%, #1b263b 100%);
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
opacity: 0;
}
#outro h2 {
font-size: 56px;
font-weight: 800;
color: #fff;
opacity: 0;
transform: translateY(20px);
}
#outro .tag {
font-size: 22px;
color: rgba(255, 255, 255, 0.4);
margin-top: 10px;
opacity: 0;
transform: translateY(15px);
}
</style>
</head>
<body>
<div
id="comp"
data-composition-id="main"
data-start="0"
data-duration="21"
data-width="1920"
data-height="1080"
style="position: relative; width: 1920px; height: 1080px; overflow: hidden; background: #000"
>
<!-- Title Card -->
<div id="title-card">
<h1 id="title-h1">Light Transitions</h1>
<div class="subtitle" id="title-sub">3 transition styles</div>
</div>
<!-- Scene A -->
<div id="scene1">
<div class="scene-number">ONE</div>
<div class="scene-label">SCENE A</div>
<div class="info-bar">
<span class="label" id="info-label-a"></span>
<span class="desc" id="info-desc-a"></span>
</div>
</div>
<!-- Scene B -->
<div id="scene2">
<div class="scene-number">TWO</div>
<div class="scene-label">SCENE B</div>
<div class="info-bar">
<span class="label" id="info-label-b"></span>
<span class="desc" id="info-desc-b"></span>
</div>
</div>
<!-- Light Leak Overlays -->
<div
id="leak-warm"
style="
position: absolute;
inset: 0;
background: linear-gradient(135deg, rgba(255, 165, 0, 0.6), transparent 60%);
z-index: 50;
opacity: 0;
pointer-events: none;
"
></div>
<div
id="leak-1"
style="
position: absolute;
top: -200px;
left: -400px;
width: 2400px;
height: 1500px;
background: radial-gradient(ellipse at 30% 40%, rgba(255, 140, 0, 0.5), transparent 50%);
z-index: 51;
opacity: 0;
pointer-events: none;
"
></div>
<div
id="leak-2"
style="
position: absolute;
top: -100px;
left: -200px;
width: 2400px;
height: 1400px;
background: radial-gradient(ellipse at 60% 50%, rgba(255, 200, 0, 0.4), transparent 50%);
z-index: 51;
opacity: 0;
pointer-events: none;
"
></div>
<!-- Flash Overlay -->
<div
id="flash-overlay"
style="
position: absolute;
inset: 0;
background: #fff;
z-index: 50;
opacity: 0;
pointer-events: none;
"
></div>
<!-- Film Burn Overlays -->
<div
id="burn-a"
style="
position: absolute;
top: -300px;
right: -800px;
width: 2400px;
height: 1800px;
background: radial-gradient(ellipse at 70% 40%, rgba(255, 100, 0, 0.5), transparent 50%);
z-index: 51;
opacity: 0;
pointer-events: none;
"
></div>
<div
id="burn-b"
style="
position: absolute;
top: -200px;
right: -600px;
width: 2400px;
height: 1600px;
background: radial-gradient(ellipse at 80% 50%, rgba(255, 160, 0, 0.4), transparent 50%);
z-index: 51;
opacity: 0;
pointer-events: none;
"
></div>
<div
id="burn-c"
style="
position: absolute;
top: -100px;
right: -500px;
width: 2200px;
height: 1400px;
background: radial-gradient(ellipse at 60% 60%, rgba(255, 200, 50, 0.3), transparent 50%);
z-index: 51;
opacity: 0;
pointer-events: none;
"
></div>
<!-- Outro -->
<div id="outro">
<h2 id="outro-h2">Light Transitions</h2>
<div class="tag" id="outro-tag">End of showcase</div>
</div>
</div>
<script>
(function () {
var tl = gsap.timeline({ paused: false });
window.__timelines = window.__timelines || {};
window.__timelines["main"] = tl;
// Transition demos config
var demos = [
{ label: "LIGHT LEAK", desc: "Use a light leak transition with warm overlays" },
{ label: "OVEREXPOSURE BURN", desc: "Use an overexposure burn transition" },
{ label: "FILM BURN", desc: "Use a film burn transition with warm edge bleeds" },
];
// Reset scenes helper
function resetScenes(t, demoIndex) {
tl.set("#scene1", { opacity: 1, filter: "none", scale: 1 }, t);
tl.set("#scene2", { opacity: 0 }, t);
tl.set("#info-label-a", { textContent: demos[demoIndex].label }, t);
tl.set("#info-desc-a", { textContent: demos[demoIndex].desc }, t);
tl.set("#info-label-b", { textContent: demos[demoIndex].label }, t);
tl.set("#info-desc-b", { textContent: demos[demoIndex].desc }, t);
// Reset light leak overlays
tl.set("#leak-warm", { opacity: 0 }, t);
tl.set("#leak-1", { opacity: 0, x: 0 }, t);
tl.set("#leak-2", { opacity: 0, x: 0 }, t);
// Reset flash
tl.set("#flash-overlay", { opacity: 0 }, t);
// Reset burn overlays
tl.set("#burn-a", { opacity: 0, x: 0 }, t);
tl.set("#burn-b", { opacity: 0, x: 0 }, t);
tl.set("#burn-c", { opacity: 0, x: 0 }, t);
}
// ===== TITLE CARD (0s - 3s) =====
tl.to("#title-h1", { opacity: 1, y: 0, duration: 0.6, ease: "power2.out" }, 0.3);
tl.to("#title-sub", { opacity: 1, y: 0, duration: 0.5, ease: "power2.out" }, 0.6);
tl.to("#title-card", { opacity: 0, duration: 0.4, ease: "power1.inOut" }, 2.5);
// ===== DEMO 1: LIGHT LEAK (3s - 8s) =====
var T1 = 3;
resetScenes(T1, 0);
var T = T1 + 2;
tl.to("#leak-warm", { opacity: 0.4, duration: 0.3, ease: "power1.in" }, T);
tl.to("#leak-1", { opacity: 0.9, x: 300, duration: 0.5, ease: "sine.inOut" }, T + 0.05);
tl.to("#leak-2", { opacity: 0.8, x: 200, duration: 0.6, ease: "sine.inOut" }, T + 0.1);
tl.to("#leak-warm", { opacity: 0.6, duration: 0.15, ease: "power2.in" }, T + 0.35);
tl.set("#scene1", { opacity: 0 }, T + 0.45);
tl.set("#scene2", { opacity: 1 }, T + 0.45);
tl.to("#leak-warm", { opacity: 0, duration: 0.4, ease: "power2.out" }, T + 0.5);
tl.to("#leak-1", { opacity: 0, x: 600, duration: 0.35, ease: "power1.out" }, T + 0.5);
tl.to("#leak-2", { opacity: 0, x: 400, duration: 0.35, ease: "power1.out" }, T + 0.55);
// ===== DEMO 2: OVEREXPOSURE BURN (8s - 13s) =====
var T2 = 8;
resetScenes(T2, 1);
T = T2 + 2;
tl.to(
"#scene1",
{ filter: "brightness(1.5)", scale: 1.03, duration: 0.2, ease: "power1.in" },
T,
);
tl.to(
"#scene1",
{ filter: "brightness(3)", scale: 1.06, duration: 0.2, ease: "power2.in" },
T + 0.2,
);
tl.to("#flash-overlay", { opacity: 0.5, duration: 0.25, ease: "power1.in" }, T + 0.15);
tl.to("#flash-overlay", { opacity: 1, duration: 0.15, ease: "power2.in" }, T + 0.4);
tl.set("#scene1", { opacity: 0 }, T + 0.55);
tl.set("#scene2", { opacity: 1 }, T + 0.55);
tl.set("#scene1", { filter: "none", scale: 1 }, T + 0.55);
tl.to("#flash-overlay", { opacity: 0, duration: 0.35, ease: "power2.out" }, T + 0.55);
// ===== DEMO 3: FILM BURN (13s - 18s) =====
var T3 = 13;
resetScenes(T3, 2);
T = T3 + 2;
tl.to("#burn-a", { opacity: 1, x: -300, duration: 0.4, ease: "power1.in" }, T);
tl.to("#burn-b", { opacity: 1, x: -500, duration: 0.5, ease: "power1.in" }, T + 0.05);
tl.to("#burn-c", { opacity: 1, x: -200, duration: 0.45, ease: "power1.in" }, T + 0.1);
tl.set("#scene1", { opacity: 0 }, T + 0.35);
tl.set("#scene2", { opacity: 1 }, T + 0.35);
tl.to("#burn-a", { opacity: 0, duration: 0.3, ease: "power2.out" }, T + 0.45);
tl.to("#burn-b", { opacity: 0, duration: 0.3, ease: "power2.out" }, T + 0.5);
tl.to("#burn-c", { opacity: 0, duration: 0.3, ease: "power2.out" }, T + 0.55);
// ===== OUTRO (18s - 21s) =====
tl.to("#scene1", { opacity: 0, duration: 0.3 }, 18);
tl.to("#scene2", { opacity: 0, duration: 0.3 }, 18);
tl.to("#outro", { opacity: 1, duration: 0.4, ease: "power1.inOut" }, 18.2);
tl.to("#outro-h2", { opacity: 1, y: 0, duration: 0.5, ease: "power2.out" }, 18.5);
tl.to("#outro-tag", { opacity: 1, y: 0, duration: 0.4, ease: "power2.out" }, 18.8);
})();
</script>
</body>
</html>