Startseite entschlackt: weniger Text, ruhiger, besser am Handy
- Cursor-Effekt im Hero entfernt (Messfadenkreuz, Temperatur-Skala, Maus-Wärmespur); Wärmebild läuft nur noch ruhig im Hintergrund - Preloader, Laufbänder, Intro, Ablauf-Block, Kennzahlen, Footer-CTA, kursive Akzentwörter, Verlaufstext und Nummern-Pillen entfernt - Texte in allen Abschnitten deutlich gekürzt, schlichte Überschriften - Leistungen: auf Handy/Tablet wischbare Kärtchen mit Zähler und Pfeilen - Neue, zusammenhängende Illustrationen für die fünf Leistungs-Kärtchen - Heizungs-Finder ohne Prozent-Balken, kürzere Ergebnistexte - Energie-Haus: Tabs als Wischleiste am Handy, kein Autoplay - GSAP, ScrollTrigger, SplitText, Lenis und Instrument Serif entfernt - Barrierefreiheit: Kontrast, Fokusring, Fokus im Kartenstapel, Telefon-Button mit Namen, Menü sperrt Hintergrund - Cache-Busting (?v=20261004) für CSS und JS, README aktualisiert Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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@@ -1,15 +1,13 @@
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/* ==========================================================================
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Olzinger – „Wärmebild“ (WebGL)
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Ein thermografisches Feld mit Isothermen. Die Maus wirkt als Wärmequelle
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und hinterlässt eine Wärmespur, die langsam abkühlt und sich ausbreitet.
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Hinter Fließtext wird die Wärme gedämpft, damit alles lesbar bleibt.
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Ein ruhiges thermografisches Feld mit Isothermen als Hero-Hintergrund.
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Eine langsam wandernde Wärmequelle hält das Bild lebendig – ganz ohne
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Maus- oder Touch-Interaktion. Hinter Fließtext wird die Wärme gedämpft.
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========================================================================== */
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(function (w) {
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'use strict';
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var MAX_HEAT = 14;
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var T_MIN = 14; // °C bei Feldwert 0
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var T_MAX = 28; // °C bei Feldwert 1
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var VERT = 'attribute vec2 aPos; void main(){ gl_Position = vec4(aPos, 0.0, 1.0); }';
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@@ -87,32 +85,6 @@
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'}'
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].join('\n');
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/* ---------- CPU-Gegenstück des Feldes (für die Temperaturanzeige) ---------- */
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function fract(x) { return x - Math.floor(x); }
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function smoothstep(a, b, x) { var t = Math.min(1, Math.max(0, (x - a) / (b - a))); return t * t * (3 - 2 * t); }
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function hash(x, y) {
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x = fract(x * 123.34); y = fract(y * 456.21);
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var dd = x * (x + 45.32) + y * (y + 45.32);
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x += dd; y += dd;
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return fract(x * y);
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}
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function noise(x, y) {
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var ix = Math.floor(x), iy = Math.floor(y), fx = x - ix, fy = y - iy;
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var ux = fx * fx * (3 - 2 * fx), uy = fy * fy * (3 - 2 * fy);
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var a = hash(ix, iy), b = hash(ix + 1, iy), c = hash(ix, iy + 1), d = hash(ix + 1, iy + 1);
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var ab = a + (b - a) * ux, cd = c + (d - c) * ux;
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return ab + (cd - ab) * uy;
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}
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function fbm(x, y) {
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var v = 0, a = 0.5;
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for (var i = 0; i < 5; i++) {
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v += a * noise(x, y);
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var nx = 1.6 * x - 1.2 * y, ny = 1.2 * x + 1.6 * y;
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x = nx; y = ny; a *= 0.5;
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}
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return v;
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}
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function compile(gl, type, src) {
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var sh = gl.createShader(type);
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gl.shaderSource(sh, src);
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@@ -161,8 +133,6 @@
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var uHeat = gl.getUniformLocation(prog, 'uHeat');
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var reduce = !!opts.reduceMotion;
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var finePointer = w.matchMedia('(hover: hover) and (pointer: fine)').matches;
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var probe = opts.probe, probeVal = opts.probeVal, marker = opts.legendMarker;
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var calmEl = opts.calm || null;
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var heatData = new Float32Array(MAX_HEAT * 4);
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@@ -171,12 +141,11 @@
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var quality = (w.devicePixelRatio || 1) > 1.5 ? 0.62 : 0.85;
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var width = 0, height = 0, rect = null;
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var running = false, visible = true, raf = 0;
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var time = Math.random() * 40, last = 0, frame = 0;
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var time = Math.random() * 40, last = 0;
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var intro = reduce ? 1 : 0, introTarget = reduce ? 1 : 0;
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var frameTimes = [], tuned = false;
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// Cursor in Feldkoordinaten: x ∈ [0, Seitenverhältnis], y ∈ [0, 1] (y nach oben)
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var cur = { x: 0, y: 0, tx: 0, ty: 0, inside: false, lastMove: -1e9, heat: 0, clientX: 0, clientY: 0 };
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// Feldkoordinaten: x ∈ [0, Seitenverhältnis], y ∈ [0, 1] (y nach oben)
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var auto = { heat: 0 };
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var lastEmit = 0;
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@@ -204,10 +173,7 @@
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gl.viewport(0, 0, width, height);
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}
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measureCalm();
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}
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function toField(clientX, clientY) {
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return { x: (clientX - rect.left) / rect.height, y: 1 - (clientY - rect.top) / rect.height };
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if (reduce) start(); // Größenänderung leert die Leinwand – Standbild neu zeichnen
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}
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function emit(x, y, i, r) {
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@@ -215,75 +181,6 @@
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if (trail.length > MAX_HEAT - 2) trail.pop();
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}
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function onMove(e) {
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if (e.pointerType && e.pointerType !== 'mouse') return;
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rect = canvas.getBoundingClientRect();
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var f = toField(e.clientX, e.clientY);
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cur.tx = f.x; cur.ty = f.y;
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cur.clientX = e.clientX - rect.left;
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cur.clientY = e.clientY - rect.top;
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if (!cur.inside) { cur.x = f.x; cur.y = f.y; }
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cur.inside = true;
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cur.lastMove = performance.now();
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if (probe) probe.classList.add('is-on');
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}
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function onLeave() {
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cur.inside = false;
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if (probe) probe.classList.remove('is-on');
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}
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function onTouch(e) {
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var t = e.touches && e.touches[0];
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if (!t) return;
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rect = canvas.getBoundingClientRect();
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var f = toField(t.clientX, t.clientY);
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emit(f.x, f.y, 0.85, 0.09);
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}
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if (finePointer) {
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hero.addEventListener('pointermove', onMove, { passive: true });
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hero.addEventListener('pointerleave', onLeave, { passive: true });
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}
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hero.addEventListener('touchstart', onTouch, { passive: true });
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function calmAt(px, py) {
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var a = smoothstep(calmRect[0] - 0.08, calmRect[0] + 0.02, px) * smoothstep(calmRect[1] - 0.08, calmRect[1] + 0.02, py);
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var b = (1 - smoothstep(calmRect[2] - 0.02, calmRect[2] + 0.08, px)) * (1 - smoothstep(calmRect[3] - 0.02, calmRect[3] + 0.08, py));
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return a * b;
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}
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// Exakt dieselbe Rechnung wie im Shader – nur für einen Punkt
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function fieldAt(px, py) {
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var asp = width / height, t = time;
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var sx = px * 1.35, sy = py * 1.35;
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var qx = fbm(sx, sy + t * 0.05), qy = fbm(sx + 5.2, sy - t * 0.04);
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var rx = fbm(sx + 2.4 * qx + 1.7 + t * 0.06, sy + 2.4 * qy + 9.2 + t * 0.06);
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var ry = fbm(sx + 2.4 * qx + 8.3 - t * 0.05, sy + 2.4 * qy + 2.8 - t * 0.05);
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var f = fbm(sx + 2.2 * rx, sy + 2.2 * ry);
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var base = smoothstep(0.18, 0.86, f) * 0.46;
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var zx = px - asp * 0.8, zy = py - 0.76;
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base += 0.36 * Math.exp(-(zx * zx + zy * zy) / 0.11) * (0.8 + 0.2 * Math.sin(t * 0.45));
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var cx = px - asp * 0.16, cy = py - 0.12;
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base -= 0.12 * Math.exp(-(cx * cx + cy * cy) / 0.2);
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base *= 0.5 + 0.5 * smoothstep(0, 0.95, (px / asp) * 0.85 + py * 0.55);
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var heat = 0;
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for (var i = 0; i < MAX_HEAT; i++) {
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var o = i * 4, dx = px - heatData[o], dy = py - heatData[o + 1];
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heat += heatData[o + 2] * Math.exp(-(dx * dx + dy * dy) / Math.max(heatData[o + 3] * heatData[o + 3], 0.0001));
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}
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heat *= 1 - 0.62 * calmAt(px, py);
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var v = Math.max(base, 0) + heat * 0.66;
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v = 1 - Math.exp(-v * 1.35);
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return v * intro;
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}
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function readTemperature() {
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if (!probeVal || !cur.inside) return;
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var v = Math.max(0, Math.min(1, fieldAt(cur.tx, cur.ty)));
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var temp = T_MIN + v * (T_MAX - T_MIN);
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probeVal.textContent = temp.toFixed(1).replace('.', ',') + ' °C';
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if (marker) marker.style.left = (v * 100).toFixed(1) + '%';
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}
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function step(now) {
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raf = 0;
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if (!running) return;
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@@ -304,22 +201,14 @@
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intro += (introTarget - intro) * (1 - Math.exp(-dt * 1.8));
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var asp = width / height;
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// Maus
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var k = 1 - Math.exp(-dt * 9);
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cur.x += (cur.tx - cur.x) * k;
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cur.y += (cur.ty - cur.y) * k;
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var idle = (now - cur.lastMove) > 3200;
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cur.heat += ((cur.inside ? 1 : 0) - cur.heat) * (1 - Math.exp(-dt * 3));
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if (cur.inside && !idle && now - lastEmit > 55) {
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emit(cur.x, cur.y, 0.42, 0.075);
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lastEmit = now;
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}
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// Autopilot: wandernde Wärmequelle oben rechts, solange niemand interagiert
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var autoOn = (!cur.inside || idle) && !reduce;
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// Langsam wandernde Wärmequelle oben rechts
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var autoOn = !reduce;
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auto.heat += ((autoOn ? 0.8 : 0) - auto.heat) * (1 - Math.exp(-dt * 1.2));
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var ax = asp * (0.7 + 0.16 * Math.sin(time * 0.21)) + 0.05 * Math.sin(time * 0.53);
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var ay = 0.66 + 0.16 * Math.sin(time * 0.29 + 1.3);
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// Hochkant (Handy): Wärme am rechten Rand halten, damit die Überschrift lesbar bleibt
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var portrait = asp < 1;
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var ax = portrait ? asp * (1.0 + 0.04 * Math.sin(time * 0.21)) + 0.03 * Math.sin(time * 0.53)
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: asp * (0.7 + 0.16 * Math.sin(time * 0.21)) + 0.05 * Math.sin(time * 0.53);
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var ay = portrait ? 0.62 + 0.12 * Math.sin(time * 0.29 + 1.3) : 0.66 + 0.16 * Math.sin(time * 0.29 + 1.3);
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if (autoOn && now - lastEmit > 140) {
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emit(ax, ay, 0.3 * auto.heat, 0.09);
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lastEmit = now;
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@@ -331,7 +220,7 @@
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trail[i].r += dt * 0.032;
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}
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heatData[0] = cur.x; heatData[1] = cur.y; heatData[2] = cur.heat * 0.8; heatData[3] = 0.095;
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heatData[0] = 0; heatData[1] = 0; heatData[2] = 0; heatData[3] = 0.1;
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heatData[4] = ax; heatData[5] = ay; heatData[6] = auto.heat * 0.7; heatData[7] = 0.13;
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for (var j = 0; j < MAX_HEAT - 2; j++) {
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var o = (j + 2) * 4, tp = trail[j];
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@@ -346,12 +235,8 @@
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gl.uniform4fv(uHeat, heatData);
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gl.drawArrays(gl.TRIANGLES, 0, 3);
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frame++;
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if (frame % 4 === 0) readTemperature();
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if (probe && cur.inside) {
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probe.style.transform = 'translate3d(' + cur.clientX.toFixed(1) + 'px,' + cur.clientY.toFixed(1) + 'px,0)';
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}
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// Reduzierte Bewegung: Standbild – einmal zeichnen, dann ruhen
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if (reduce) { running = false; return; }
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raf = w.requestAnimationFrame(step);
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}
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