Three square record sleeves, each printed with a portrait, lean against a limewashed wall on an oak shelf while afternoon sun falls through a four-pane window. Pick a sleeve and its black disc rides up out of the top on a spring, overshoots a little and settles half out, while the sleeve rocks off the wall from the tug and taps back. The disc has a paper label with the speaker's name, smooth bands between tracks, and grooves that pull the sunlight into a thin streak along the radius, the way a real record does when you tilt it toward a window. Everything in the room is traced per pixel in one fragment shader with four samples per pixel, so the sleeve corners and the disc rim stay clean. The quote sits on the wall as large serif type, ordinary HTML multiplied into the picture. On phones the quote moves above the shelf and the three sleeves fill the width; without WebGL 2 a flat version with the same photos and text is shown.
import { useCallback, useEffect, useRef, useState } from "react";
import { useReducedMotion } from "framer-motion";
/** One record per speaker. The cover photo is printed on the sleeve; `label` is the paper label in the middle of the disc. */
const records = [
{
quote: "They listened to the whole brief before touching a single pixel.",
name: "Noor Halvorsen",
role: "Owner, Halvorsen Ceramics",
src: "https://images.pexels.com/photos/11608677/pexels-photo-11608677.jpeg?auto=compress&cs=tinysrgb&w=900",
alt: "Woman with a dark bob and a large earring looking back over her shoulder against a violet and orange backdrop",
tone: "#5b3bb4",
label: "#e9a23b",
},
{
quote: "Our booking page finally sounds like us, not like a template.",
name: "Desmond Okafor",
role: "Founder, Low Tide Barbers",
src: "https://images.pexels.com/photos/37580515/pexels-photo-37580515.jpeg?auto=compress&cs=tinysrgb&w=900",
alt: "Young man with swept-back hair and a green overshirt smiling against a deep red backdrop",
tone: "#a3201d",
label: "#e2c98f",
},
{
quote: "The site went live on Friday. Monday's calls were all new faces.",
name: "Adaeze Calderwood",
role: "Director, Calderwood Physio",
src: "https://images.pexels.com/photos/30774062/pexels-photo-30774062.jpeg?auto=compress&cs=tinysrgb&w=900",
alt: "Woman with a full afro, a patterned head tie and hoop earrings standing in front of dark green trees",
tone: "#2f4a2c",
label: "#d8452f",
},
];
const N = records.length;
const KICKER = "Played on repeat"; // small label above the quote
const HOLD_MS = 6400; // rest before the next record is pulled by itself
const SLIDE = 0.158; // how far the disc rises out of its sleeve, in metres (half a 12 inch record)
const SLIDE_PULL = 58; // spring strength of the sliding disc; higher arrives sooner
const SLIDE_DRAG = 8.6; // lower lets the disc overshoot further before it settles
const TIP_KICK = 0.75; // how hard the chosen sleeve rocks off the wall when its record is pulled
const SERIF = '"New York", ui-serif, "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif';
const GROTESK = '"Inter Tight", "Inter", ui-sans-serif, system-ui, sans-serif';
const INK = "#2b1a10";
// Sleeves in metres: a 12 inch sleeve is 31.5 cm square. Each leans back until its top meets the wall.
const HS = 0.1575;
const HT = 0.0034;
const XS = [-0.338, 0.0, 0.338];
const LEANS = [0.15, 0.115, 0.165];
const YAWS = [0.05, -0.025, 0.06];
const CAM_Z = 2.0;
const TEX = 768;
const mod = (a: number, n: number) => ((a % n) + n) % n;
const clamp = (v: number, lo: number, hi: number) => Math.min(hi, Math.max(lo, v));
const FS = `#version 300 es
precision highp float;
precision highp sampler2DArray;
uniform vec3 uCam, uRt, uUp, uFw;
uniform float uTan, uAspect, uFocus, uAperture;
uniform vec2 uRes;
uniform int uSS;
uniform vec3 uSC[3], uSU[3], uSV[3], uSN[3];
uniform float uLift[3], uSpin[3];
uniform vec3 uL;
uniform vec4 uWin;
uniform sampler2DArray uTex;
out vec4 o;
const float HS = ${HS.toFixed(4)}, HT = ${HT.toFixed(4)}, DR = 0.1505, LR = 0.051;
const vec3 SUN = vec3(1.0, 0.82, 0.6) * 3.0;
const vec3 AMB = vec3(0.46, 0.4, 0.36) * 0.66;
const vec3 WALL = vec3(0.6, 0.48, 0.36);
const vec3 OAK = vec3(0.40, 0.235, 0.12);
const vec3 SHC = vec3(0.0, -0.019, 0.13), SHH = vec3(6.0, 0.019, 0.13);
const vec3 KEY2 = vec3(0.62, 0.62, 0.48);
vec3 Lu, Lv;
float ign(vec2 p) { return fract(52.9829189 * fract(dot(p, vec2(0.06711056, 0.00583715)))); }
float hash(vec2 p) { p = fract(p * vec2(123.34, 456.21)); p += dot(p, p + 45.32); return fract(p.x * p.y); }
float vnoise(vec2 p) {
vec2 i = floor(p), f = fract(p); f = f * f * (3.0 - 2.0 * f);
return mix(mix(hash(i), hash(i + vec2(1, 0)), f.x), mix(hash(i + vec2(0, 1)), hash(i + vec2(1, 1)), f.x), f.y);
}
float fbm(vec2 p) { return 0.5 * vnoise(p) + 0.25 * vnoise(p * 2.03 + 7.3) + 0.125 * vnoise(p * 4.1 + 1.7) + 0.0625 * vnoise(p * 8.3); }
float sbox(vec2 p, vec2 h, float s) { vec2 d = smoothstep(h + s, h - s, abs(p)); return d.x * d.y; }
float sdBox(vec3 p, vec3 b) { vec3 q = abs(p) - b; return length(max(q, 0.0)) + min(max(q.x, max(q.y, q.z)), 0.0); }
float boxHit(vec3 ro, vec3 rd, vec3 h, out vec3 n) {
vec3 inv = 1.0 / rd;
vec3 t1 = (-h - ro) * inv, t2 = (h - ro) * inv;
vec3 tn = min(t1, t2), tf = max(t1, t2);
float a = max(max(tn.x, tn.y), tn.z), b = min(min(tf.x, tf.y), tf.z);
if (a > b || a < 0.0) return -1.0;
n = tn.x > tn.y && tn.x > tn.z ? vec3(-sign(rd.x), 0, 0) : tn.y > tn.z ? vec3(0, -sign(rd.y), 0) : vec3(0, 0, -sign(rd.z));
return a;
}
vec3 loc(vec3 v, int i) { return vec3(dot(v, uSU[i]), dot(v, uSV[i]), dot(v, uSN[i])); }
// Nearest surface along a ray: 0 wall, 1 shelf, 2 sleeve, 3 disc.
float trace(vec3 ro, vec3 rd, out int m, out vec3 n, out vec3 lp, out int k) {
float t = 1e9; m = -1; k = 0; n = vec3(0, 0, 1); lp = vec3(0);
if (rd.z < 0.0) { t = -ro.z / rd.z; m = 0; }
vec3 nn;
float ts = boxHit(ro - SHC, rd, SHH, nn);
if (ts > 0.0 && ts < t) { t = ts; m = 1; n = nn; lp = ro + rd * ts - SHC; }
for (int i = 0; i < 3; i++) {
vec3 lo = loc(ro - uSC[i], i), ld = loc(rd, i);
float tb = boxHit(lo, ld, vec3(HS, HS, HT), nn);
if (tb > 0.0 && tb < t) { t = tb; m = 2; k = i; n = uSU[i] * nn.x + uSV[i] * nn.y + uSN[i] * nn.z; lp = lo + ld * tb; lp.z = nn.z; }
if (uLift[i] > 0.004) {
float td = -lo.z / ld.z;
vec2 c = (lo + ld * td).xy - vec2(0.0, uLift[i]);
if (td > 0.0 && td < t && dot(c, c) < DR * DR) { t = td; m = 3; k = i; n = uSN[i] * (ld.z < 0.0 ? 1.0 : -1.0); lp = vec3(c, 0.0); }
}
}
return t;
}
bool blocked(vec3 ro, vec3 rd) {
vec3 nn;
if (boxHit(ro - SHC, rd, SHH, nn) > 0.0) return true;
for (int i = 0; i < 3; i++) {
vec3 lo = loc(ro - uSC[i], i), ld = loc(rd, i);
if (boxHit(lo, ld, vec3(HS, HS, HT), nn) > 0.0) return true;
if (uLift[i] > 0.004) {
float td = -lo.z / ld.z;
vec2 c = (lo + ld * td).xy - vec2(0.0, uLift[i]);
if (td > 0.0 && dot(c, c) < DR * DR) return true;
}
}
return false;
}
// Two jittered rays toward a sun that comes through a window, so shadow edges have a penumbra.
float sunShadow(vec3 P, float seed) {
float s = 0.0;
for (int j = 0; j < 2; j++) {
float a = 6.2832 * fract(seed + float(j) * 0.5);
float r = 0.022 * sqrt(fract(seed * 7.13 + float(j) * 0.37));
if (!blocked(P, normalize(uL + (Lu * cos(a) + Lv * sin(a)) * r))) s += 0.5;
}
return s;
}
// The window: four panes with glazing bars, cast as a slanted patch of sun on the wall and shelf.
float gobo(vec3 P) {
vec2 g = vec2(dot(P, Lu), dot(P, Lv)) - uWin.xy;
float w = sbox(g, uWin.zw, 0.05);
float bars = (1.0 - 0.92 * smoothstep(0.03, 0.012, abs(g.x + 0.12))) * (1.0 - 0.92 * smoothstep(0.03, 0.012, abs(g.y - 0.12)));
return w * bars;
}
float occl(vec3 P) {
float ao = 1.0;
for (int i = 0; i < 3; i++) {
vec3 l = loc(P - uSC[i], i);
ao *= mix(0.42, 1.0, smoothstep(0.0, 0.07, sdBox(l, vec3(HS, HS + uLift[i] * 0.5, HT))));
}
return ao;
}
// What glossy things see when they look back into the room: warm walls, a bright window, a pale card.
vec3 room(vec3 R, float soft) {
vec3 c = mix(vec3(0.18, 0.12, 0.08), vec3(0.7, 0.62, 0.52), smoothstep(-0.4, 0.7, R.y));
float f = dot(R, uL);
if (f > 0.0) {
vec2 a = vec2(dot(R, Lu), dot(R, Lv)) / f;
float win = sbox(a - vec2(0.05, 0.1), vec2(0.42, 0.3), mix(0.01, 0.25, soft));
win *= 1.0 - 0.9 * (1.0 - soft) * smoothstep(0.02, 0.008, abs(a.x - 0.0));
c += SUN * 2.6 * win;
}
c += vec3(1.0, 0.96, 0.9) * 1.1 * smoothstep(0.9 - soft * 0.2, 0.97, dot(R, normalize(KEY2)));
return c;
}
vec3 shadeWall(vec3 P, float seed) {
vec2 q = P.xy * vec2(6.0, 4.0);
float h0 = fbm(q), hx = fbm(q + vec2(0.04, 0)), hy = fbm(q + vec2(0, 0.04));
vec3 n = normalize(vec3(-(hx - h0) * 0.55, -(hy - h0) * 0.55, 1.0));
vec3 alb = WALL * (0.84 + 0.28 * fbm(P.xy * 1.3 + 3.0)) * (0.93 + 0.14 * h0);
float ao = occl(P) * (1.0 - 0.3 * exp(-abs(P.y) / 0.05)) * (P.y < 0.0 ? 0.8 : 1.0);
float lit = max(dot(n, uL), 0.0) * gobo(P);
if (lit > 0.001) lit *= sunShadow(P + n * 0.001, seed);
vec3 bounce = OAK * SUN * 0.16 * exp(-max(P.y, 0.0) / 0.12) * step(0.0, P.y);
return alb * (SUN * lit + AMB * ao + bounce);
}
vec3 shadeShelf(vec3 P, vec3 lp, vec3 n, vec3 V, float seed) {
bool top = n.y > 0.5;
vec2 gp = top ? vec2(P.x, P.z) : vec2(P.x, P.y);
float warp = fbm(gp * vec2(1.4, 18.0));
float g = fbm(vec2(gp.x * 2.4, gp.y * 90.0 + warp * 5.0));
vec3 alb = OAK * (0.62 + 0.62 * g) * (0.9 + 0.2 * vnoise(vec2(gp.x * 40.0, gp.y * 900.0)));
// a rounded front edge picks up a line of light
float edge = top ? smoothstep(0.122, 0.13, lp.z) : smoothstep(-0.008, 0.0, lp.y);
vec3 ns = normalize(mix(n, normalize(vec3(0, 0.7, 0.7)), edge * 0.85));
float ao = occl(P) * (top ? mix(0.55, 1.0, smoothstep(0.0, 0.06, P.z)) : 1.0);
float lit = max(dot(ns, uL), 0.0) * gobo(P);
if (lit > 0.001) lit *= sunShadow(P + n * 0.001, seed);
vec3 col = alb * (SUN * lit + AMB * ao);
float F = 0.04 + 0.96 * pow(1.0 - max(dot(ns, V), 0.0), 5.0);
col += room(reflect(-V, ns), 0.8) * F * 0.45 * ao;
col += SUN * lit * pow(max(dot(ns, normalize(uL + V)), 0.0), 40.0) * 0.18;
return col;
}
vec3 shadeSleeve(vec3 P, vec3 lp, vec3 n, int k, vec3 V, float seed) {
vec3 alb;
bool front = lp.z > 0.5;
vec2 xy = lp.xy;
if (front) {
alb = pow(texture(uTex, vec3(xy / (2.0 * HS) + 0.5, float(k))).rgb, vec3(2.2));
// ring wear where the record has pressed through, and soft scuffed corners
float r = length(xy);
float ring = smoothstep(0.009, 0.0, abs(r - 0.146)) * smoothstep(0.35, 0.8, fbm(xy * 40.0 + float(k) * 9.0));
float e = HS - max(abs(xy.x), abs(xy.y));
float wear = smoothstep(0.0045, 0.0, e) * (0.4 + 0.6 * vnoise(xy * 260.0));
alb = mix(alb, vec3(0.62, 0.58, 0.52), clamp(ring * 0.1 + wear * 0.6, 0.0, 1.0));
} else {
alb = vec3(0.6, 0.55, 0.47) * (0.9 + 0.2 * vnoise(xy * 400.0));
}
float ao = mix(0.6, 1.0, smoothstep(-HS, -HS + 0.05, xy.y));
float lit = max(dot(n, uL), 0.0) * gobo(P);
if (lit > 0.001) lit *= sunShadow(P + n * 0.0015, seed);
vec3 col = alb * (SUN * lit + AMB * ao * 1.15);
float F = 0.04 + 0.96 * pow(1.0 - max(dot(n, V), 0.0), 5.0);
col += room(reflect(-V, n), 0.55) * F * (front ? 0.6 : 0.2);
col += SUN * lit * pow(max(dot(n, normalize(uL + V)), 0.0), 70.0) * 0.12;
// the laminated print catches a broad, faint sheen, broken up by handling marks
if (front) col += SUN * lit * pow(max(dot(n, normalize(uL + V)), 0.0), 9.0) * 0.05 * (0.6 + 0.8 * fbm(xy * 18.0 + float(k)));
return col;
}
vec3 shadeDisc(vec3 P, vec3 lp, vec3 n, int k, vec3 V, float seed) {
vec2 p = lp.xy;
float r = length(p);
if (r < 0.0037) return vec3(0.004);
float lit = max(dot(n, uL), 0.0) * gobo(P);
if (lit > 0.001) lit *= sunShadow(P + n * 0.0015, seed);
float ao = occl(P) * 0.9 + 0.1;
if (r < LR) {
float s = uSpin[k];
vec2 q = mat2(cos(s), -sin(s), sin(s), cos(s)) * p;
vec3 alb = pow(texture(uTex, vec3(q / (2.0 * LR) + 0.5, float(k + 3))).rgb, vec3(2.2));
vec3 col = alb * (SUN * lit + AMB * ao);
float F = 0.04 + 0.96 * pow(1.0 - max(dot(n, V), 0.0), 5.0);
return col + room(reflect(-V, n), 0.7) * F * 0.3;
}
// grooves run round the centre, so light streaks across them along the radius
vec2 tl = vec2(-p.y, p.x) / r;
vec3 T = uSU[k] * tl.x + uSV[k] * tl.y;
float runout = smoothstep(0.062, 0.0605, r);
float gap = 0.0;
for (int b = 0; b < 4; b++) gap = max(gap, smoothstep(0.0011, 0.0004, abs(r - (0.078 + float(b) * 0.0165))));
float lead = smoothstep(0.1455, 0.1465, r);
float smoothBand = max(max(runout, gap), lead * 0.7);
float grooveTex = 0.75 + 0.25 * vnoise(vec2(r * 2600.0, 0.0)) ;
// each groove wall is a tiny slope facing in or out along the radius, so a light reflects off them
// only along the radius that lines up with the half vector: a thin bright streak through the centre
vec2 rad = p / r;
vec3 H = normalize(uL + V);
vec2 hl = vec2(dot(H, uSU[k]), dot(H, uSV[k]));
float slope = length(hl) / max(dot(H, n), 1e-3);
float al = abs(dot(rad, hl / max(length(hl), 1e-4)));
float aniso = (pow(al, 900.0) * 4.5 + pow(al, 60.0) * 0.35) * exp(-slope * slope / 0.5);
vec3 H2 = normalize(normalize(KEY2) + V);
vec2 hl2 = vec2(dot(H2, uSU[k]), dot(H2, uSV[k]));
float slope2 = length(hl2) / max(dot(H2, n), 1e-3);
float al2 = abs(dot(rad, hl2 / max(length(hl2), 1e-4)));
float aniso2 = (pow(al2, 500.0) * 1.6 + pow(al2, 40.0) * 0.12) * exp(-slope2 * slope2 / 0.5);
float ndl = max(dot(n, uL), 0.0);
vec3 col = vec3(0.011, 0.010, 0.010) * (SUN * lit + AMB * ao);
float F = 0.045 + 0.955 * pow(1.0 - max(dot(n, V), 0.0), 5.0);
vec3 R = reflect(-V, n);
col += room(R, mix(0.35, 0.02, smoothBand)) * F * mix(0.8, 1.15, smoothBand);
col += SUN * (lit / max(ndl, 0.05)) * ndl * aniso * grooveTex * (1.0 - smoothBand * 0.8) * 0.9;
col += vec3(1.0, 0.96, 0.9) * aniso2 * grooveTex * ao * (1.0 - smoothBand) * 0.9;
// a bevelled rim, and a little dust
col += room(R, 0.2) * 0.25 * smoothstep(DR - 0.0018, DR - 0.0003, r);
float dust = step(0.9992, hash(floor(p * 1600.0) + float(k) * 13.0));
col += vec3(0.5, 0.48, 0.45) * dust * (SUN * lit * 0.12 + AMB * 0.4);
return col;
}
vec3 tonemap(vec3 x) { x *= 0.72; return clamp((x * (2.51 * x + 0.03)) / (x * (2.43 * x + 0.59) + 0.14), 0.0, 1.0); }
void main() {
Lu = normalize(cross(uL, vec3(0.0, 1.0, 0.0)));
Lv = cross(Lu, uL);
vec3 acc = vec3(0.0);
float depth = 0.0;
int ss = uSS;
vec2 offs[4] = vec2[4](vec2(0.375, 0.125), vec2(0.875, 0.375), vec2(0.125, 0.625), vec2(0.625, 0.875));
int cnt = ss > 1 ? 4 : 1;
for (int s = 0; s < 4; s++) {
if (s >= cnt) break;
vec2 off = cnt == 1 ? vec2(0.5) : offs[s];
vec2 uv = (gl_FragCoord.xy - 0.5 + off) / uRes * 2.0 - 1.0;
vec3 rd = normalize(uFw + uRt * uv.x * uTan * uAspect + uUp * uv.y * uTan);
int m, k; vec3 n, lp;
float t = trace(uCam, rd, m, n, lp, k);
vec3 P = uCam + rd * t, V = -rd;
float seed = ign(gl_FragCoord.xy + vec2(float(s) * 17.0, float(s) * 5.0));
vec3 col;
if (m == 0) col = shadeWall(P, seed);
else if (m == 1) col = shadeShelf(P, lp, n, V, seed);
else if (m == 2) col = shadeSleeve(P, lp, n, k, V, seed);
else if (m == 3) col = shadeDisc(P, lp, n, k, V, seed);
else col = vec3(0.5);
acc += tonemap(col);
depth += dot(P - uCam, uFw);
}
acc /= float(cnt);
depth /= float(cnt);
float coc = clamp(uAperture * (1.0 - uFocus / max(depth, 0.05)), -1.0, 1.0);
o = vec4(pow(acc, vec3(1.0 / 2.2)), 0.5 + 0.5 * coc);
}`;
const VS_FULL = `#version 300 es
void main() { vec2 p = vec2(float((gl_VertexID << 1) & 2), float(gl_VertexID & 2)); gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0); }`;
// Lens and film: a small depth-of-field gather, a warm glow round the brightest highlights, vignette and grain.
const FS_OUT = `#version 300 es
precision highp float;
uniform sampler2D uScene;
uniform vec2 uPx;
uniform float uMaxR, uTime;
out vec4 o;
float ign(vec2 p) { return fract(52.9829189 * fract(dot(p, vec2(0.06711056, 0.00583715)))); }
void main() {
vec2 uv = gl_FragCoord.xy * uPx;
vec4 c0 = texture(uScene, uv);
float coc = abs(c0.a * 2.0 - 1.0);
vec3 acc = c0.rgb; float w = 1.0; vec3 glow = vec3(0.0);
float rot = 6.2832 * ign(gl_FragCoord.xy);
for (int k = 1; k < 16; k++) {
float r = sqrt(float(k) / 15.0);
float a = float(k) * 2.39996 + rot;
vec2 d = vec2(cos(a), sin(a)) * r;
vec4 s = texture(uScene, uv + d * coc * uMaxR * uPx);
float ws = smoothstep(0.0, 0.15, abs(s.a * 2.0 - 1.0) + 0.05);
acc += s.rgb * ws; w += ws;
vec3 g = texture(uScene, uv + d * uMaxR * 2.2 * uPx).rgb;
glow += max(g - 0.82, 0.0);
}
vec3 col = acc / w + glow * vec3(1.0, 0.8, 0.6) * 0.09;
vec2 q = uv - 0.5;
col *= 1.0 - 0.38 * dot(q, q);
col += (ign(gl_FragCoord.xy + fract(uTime) * 61.0) - 0.5) * 0.024;
o = vec4(col, 1.0);
}`;
function program(gl: WebGL2RenderingContext, vs: string, fs: string) {
const p = gl.createProgram()!;
for (const [type, src] of [[gl.VERTEX_SHADER, vs], [gl.FRAGMENT_SHADER, fs]] as const) {
const s = gl.createShader(type)!;
gl.shaderSource(s, src);
gl.compileShader(s);
if (!gl.getShaderParameter(s, gl.COMPILE_STATUS)) throw new Error(gl.getShaderInfoLog(s) || "shader");
gl.attachShader(p, s);
}
gl.linkProgram(p);
if (!gl.getProgramParameter(p, gl.LINK_STATUS)) throw new Error(gl.getProgramInfoLog(p) || "link");
return p;
}
type Rec = (typeof records)[number];
/** The printed front of a sleeve: the photo, cropped square, with the speaker's name set small in the corner. */
function paintCover(ctx: CanvasRenderingContext2D, r: Rec, img: HTMLImageElement | null) {
ctx.fillStyle = r.tone;
ctx.fillRect(0, 0, TEX, TEX);
if (img) {
const s = Math.max(TEX / img.naturalWidth, TEX / img.naturalHeight);
const w = img.naturalWidth * s, h = img.naturalHeight * s;
ctx.drawImage(img, (TEX - w) / 2, (TEX - h) / 2, w, h);
}
ctx.fillStyle = "rgba(255, 250, 240, 0.92)";
ctx.font = `600 22px ${GROTESK}`;
ctx.textBaseline = "alphabetic";
ctx.textAlign = "left";
const name = r.name.toUpperCase().split("").join(String.fromCharCode(8202));
ctx.fillText(name, 40, TEX - 44);
ctx.textAlign = "right";
ctx.font = `italic 24px ${SERIF}`;
ctx.fillText("Side A", TEX - 40, TEX - 44);
}
/** The paper label: a flat colour, the name, a rim line and the centre hole marking. */
function paintLabel(ctx: CanvasRenderingContext2D, r: Rec, index: number) {
ctx.fillStyle = "#111";
ctx.fillRect(0, 0, TEX, TEX);
const c = TEX / 2;
ctx.fillStyle = r.label;
ctx.beginPath();
ctx.arc(c, c, c - 2, 0, Math.PI * 2);
ctx.fill();
const ink = r.label === "#e2c98f" ? "#2b1a10" : "#1d120b";
ctx.strokeStyle = ink;
ctx.globalAlpha = 0.55;
ctx.lineWidth = 3;
ctx.beginPath();
ctx.arc(c, c, c - 40, 0, Math.PI * 2);
ctx.stroke();
ctx.globalAlpha = 1;
ctx.fillStyle = ink;
ctx.textAlign = "center";
ctx.textBaseline = "middle";
ctx.font = `italic 64px ${SERIF}`;
ctx.fillText(r.name.split(" ")[0], c, c - 150);
ctx.font = `600 26px ${GROTESK}`;
ctx.fillText(r.name.split(" ").slice(1).join(" ").toUpperCase(), c, c - 92);
ctx.font = `600 22px ${GROTESK}`;
ctx.fillText(`33 RPM · No. ${index + 1}`, c, c + 120);
ctx.font = `20px ${GROTESK}`;
ctx.fillText(r.role, c, c + 170);
ctx.fillStyle = "rgba(0,0,0,0.25)";
ctx.beginPath();
ctx.arc(c, c, 34, 0, Math.PI * 2);
ctx.fill();
}
type Sim = {
index: number; queued: number; outAt: number; textIn: boolean;
out: number[]; outV: number[]; tip: number[]; tipV: number[]; spin: number[];
px: number; py: number; cx: number; cy: number;
paused: boolean; nextAuto: number; dirty: boolean; narrow: boolean;
};
function QuoteBody({ r, narrow }: { r: Rec; narrow: boolean }) {
return (
<figure className="m-0" style={{ color: INK }}>
<p className="flex items-center gap-3 font-semibold uppercase" style={{ fontFamily: GROTESK, fontSize: narrow ? 10.5 : 12, letterSpacing: "0.26em" }}>
<span aria-hidden="true" className="inline-block h-px w-8 bg-current" />
{KICKER}
</p>
<blockquote className="relative m-0 mt-5" style={{ fontFamily: SERIF, fontSize: narrow ? 36 : 60, lineHeight: 1.0, letterSpacing: "-0.035em", fontWeight: 500, textWrap: "balance" } as React.CSSProperties}>
<span aria-hidden="true" className="absolute" style={{ transform: "translateX(-0.46em)" }}>
“
</span>
{r.quote}”
</blockquote>
<figcaption className={narrow ? "mt-5" : "mt-9"} style={{ fontFamily: GROTESK }}>
<span className="block font-semibold" style={{ fontSize: narrow ? 15 : 19, letterSpacing: "-0.01em" }}>
{r.name}
</span>
<span className="mt-1 block font-medium uppercase" style={{ fontSize: narrow ? 10 : 11.5, letterSpacing: "0.2em" }}>
{r.role}
</span>
</figcaption>
</figure>
);
}
export default function RecordSleeveTestimonials() {
const reduce = useReducedMotion();
const wrapRef = useRef<HTMLDivElement>(null);
const canvasRef = useRef<HTMLCanvasElement>(null);
const hitRefs = useRef<(HTMLButtonElement | null)[]>([]);
const [shown, setShown] = useState(0);
const [ink, setInk] = useState(true);
const [narrow, setNarrow] = useState(false);
const [mode, setMode] = useState<"pending" | "gl" | "still">("pending");
const sim = useRef<Sim>({
index: 0, queued: -1, outAt: 0, textIn: true,
out: [1, 0, 0], outV: [0, 0, 0], tip: [0, 0, 0], tipV: [0, 0, 0], spin: [0.4, 1.9, 4.2],
px: 0, py: 0, cx: 0, cy: 0, paused: false, nextAuto: 0, dirty: true, narrow: false,
});
const pick = useCallback((i: number) => {
const s = sim.current;
s.nextAuto = performance.now() + HOLD_MS * 1.5;
s.dirty = true;
if (i === s.index) return;
s.queued = mod(i, N);
if (mode === "still") {
s.index = s.queued;
s.queued = -1;
setShown(s.index);
}
}, [mode]);
useEffect(() => {
const wrap = wrapRef.current;
if (!wrap) return;
const measure = () => {
const isNarrow = wrap.clientWidth / wrap.clientHeight < 1.1;
sim.current.narrow = isNarrow;
sim.current.dirty = true;
setNarrow(isNarrow);
};
measure();
const ro = new ResizeObserver(measure);
ro.observe(wrap);
return () => ro.disconnect();
}, []);
useEffect(() => {
const wrap = wrapRef.current;
const canvas = canvasRef.current;
if (!wrap || !canvas) return;
const gl = canvas.getContext("webgl2", { antialias: false, alpha: false, powerPreference: "high-performance" });
if (!gl) {
setMode("still");
return;
}
const s = sim.current;
let prog: WebGLProgram, progOut: WebGLProgram;
try {
prog = program(gl, VS_FULL, FS);
progOut = program(gl, VS_FULL, FS_OUT);
} catch {
setMode("still");
return;
}
setMode("gl");
// covers in layers 0 to 2, disc labels in layers 3 to 5, all in sRGB
const tex = gl.createTexture();
gl.activeTexture(gl.TEXTURE0);
gl.bindTexture(gl.TEXTURE_2D_ARRAY, tex);
gl.texStorage3D(gl.TEXTURE_2D_ARRAY, Math.floor(Math.log2(TEX)) + 1, gl.RGBA8, TEX, TEX, N * 2);
gl.texParameteri(gl.TEXTURE_2D_ARRAY, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR);
gl.texParameteri(gl.TEXTURE_2D_ARRAY, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D_ARRAY, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
const aniso = gl.getExtension("EXT_texture_filter_anisotropic");
if (aniso) gl.texParameterf(gl.TEXTURE_2D_ARRAY, aniso.TEXTURE_MAX_ANISOTROPY_EXT, 8);
const scratch = document.createElement("canvas");
scratch.width = TEX;
scratch.height = TEX;
const sctx = scratch.getContext("2d")!;
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, true);
const upload = (layer: number) => {
gl.activeTexture(gl.TEXTURE0);
gl.bindTexture(gl.TEXTURE_2D_ARRAY, tex);
gl.texSubImage3D(gl.TEXTURE_2D_ARRAY, 0, 0, 0, layer, TEX, TEX, 1, gl.RGBA, gl.UNSIGNED_BYTE, scratch);
gl.generateMipmap(gl.TEXTURE_2D_ARRAY);
s.dirty = true;
};
let alive = true;
records.forEach((r, i) => {
paintLabel(sctx, r, i);
upload(N + i);
paintCover(sctx, r, null);
upload(i);
const img = new Image();
img.crossOrigin = "anonymous";
img.onload = () => {
if (!alive) return;
paintCover(sctx, r, img);
upload(i);
};
img.src = r.src;
});
const vao = gl.createVertexArray();
const sceneFbo = gl.createFramebuffer();
const sceneTex = gl.createTexture();
let W = 0, H = 0, cw = 1, ch = 1, scale = Math.min(window.devicePixelRatio || 1, 1.25), ss = 2;
const resize = () => {
cw = wrap.clientWidth;
ch = wrap.clientHeight;
let k = scale;
if (cw * ch * k * k > 1.5e6) k = Math.sqrt(1.5e6 / (cw * ch));
const w = Math.max(2, Math.round(cw * k)), h = Math.max(2, Math.round(ch * k));
s.dirty = true;
if (w === W && h === H) return;
W = w;
H = h;
canvas.width = W;
canvas.height = H;
gl.activeTexture(gl.TEXTURE1);
gl.bindTexture(gl.TEXTURE_2D, sceneTex);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, W, H, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
gl.bindFramebuffer(gl.FRAMEBUFFER, sceneFbo);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, sceneTex, 0);
};
resize();
const ro = new ResizeObserver(resize);
ro.observe(wrap);
const locs = new Map<string, WebGLUniformLocation | null>();
const U = (p: WebGLProgram, n: string) => {
const key = (p === prog ? "a" : "b") + n;
if (!locs.has(key)) locs.set(key, gl.getUniformLocation(p, n));
return locs.get(key)!;
};
const sun = (() => {
const v = [-0.5, 0.62, 0.6];
const l = Math.hypot(v[0], v[1], v[2]);
return v.map((x) => x / l);
})();
/** Where each sleeve stands: its bottom back edge rests on the shelf, its top touches the wall. */
const pose = (i: number) => {
const lean = LEANS[i] + s.tip[i];
// with its record out, the sleeve slides forward on the shelf so the disc, not the sleeve, rests on the wall
const zb = Math.max(2 * HS * Math.sin(LEANS[i]), (HS + s.out[i] * SLIDE + 0.1505) * Math.sin(lean)) + 0.0015;
const cyw = Math.cos(YAWS[i]), syw = Math.sin(YAWS[i]);
const yaw = (v: number[]) => [v[0] * cyw + v[2] * syw, v[1], -v[0] * syw + v[2] * cyw];
const Uv = yaw([1, 0, 0]);
const Vv = yaw([0, Math.cos(lean), -Math.sin(lean)]);
const Nv = yaw([0, Math.sin(lean), Math.cos(lean)]);
const B = [XS[i], 0, zb];
const C = [0, 1, 2].map((a) => B[a] + Vv[a] * HS + Nv[a] * HT);
return { C, Uv, Vv, Nv };
};
const sc = new Float32Array(9), su = new Float32Array(9), sv = new Float32Array(9), sn = new Float32Array(9);
const lift = new Float32Array(3), spin = new Float32Array(3);
const draw = (t: number) => {
const aspect = cw / ch;
const needW = s.narrow ? 1.12 : 1.85;
const visW = Math.max(needW, (s.narrow ? 1.3 : 1.05) * aspect);
const visH = visW / aspect;
const shelfAt = s.narrow ? 0.8 : 0.84;
const ctrX = s.narrow ? 0 : -0.2 * visW;
const ctrY = (shelfAt - 0.5) * visH + 0.02;
const TAN = visH / 2 / CAM_Z;
const cam = [ctrX + s.cx * 0.12 + (reduce ? 0 : 0.02 * Math.sin(t * 0.23)), ctrY + 0.42 - s.cy * 0.06, CAM_Z];
let fw = [ctrX * 0.96 - cam[0], ctrY - cam[1], -cam[2]];
const fl = Math.hypot(fw[0], fw[1], fw[2]);
fw = fw.map((v) => v / fl);
let rt = [-fw[2], 0, fw[0]];
const rl = Math.hypot(rt[0], rt[2]);
rt = rt.map((v) => v / rl);
const up = [rt[1] * fw[2] - rt[2] * fw[1], rt[2] * fw[0] - rt[0] * fw[2], rt[0] * fw[1] - rt[1] * fw[0]];
const proj = (p: number[]) => {
const d = [p[0] - cam[0], p[1] - cam[1], p[2] - cam[2]];
const xv = d[0] * rt[0] + d[1] * rt[1] + d[2] * rt[2], yv = d[0] * up[0] + d[1] * up[1] + d[2] * up[2], zv = d[0] * fw[0] + d[1] * fw[1] + d[2] * fw[2];
return [cw * 0.5 * (1 + xv / (TAN * aspect * zv)), ch * 0.5 * (1 - yv / (TAN * zv))];
};
for (let i = 0; i < N; i++) {
const p = pose(i);
sc.set(p.C, i * 3);
su.set(p.Uv, i * 3);
sv.set(p.Vv, i * 3);
sn.set(p.Nv, i * 3);
lift[i] = s.out[i] * SLIDE;
spin[i] = s.spin[i];
// a clickable box over each sleeve and the part of its record that shows
const btn = hitRefs.current[i];
if (btn) {
const top = HS + lift[i] + (lift[i] > 0.01 ? HS * 0.95 : 0);
const corners = [[-HS, -HS], [HS, -HS], [HS, top], [-HS, top]].map(([x, y]) => proj([0, 1, 2].map((a) => p.C[a] + p.Uv[a] * x + p.Vv[a] * y)));
const xs = corners.map((c) => c[0]), ys = corners.map((c) => c[1]);
const l = Math.min(...xs), tp = Math.min(...ys);
btn.style.transform = `translate(${l}px, ${tp}px)`;
btn.style.width = `${Math.max(...xs) - l}px`;
btn.style.height = `${Math.max(...ys) - tp}px`;
}
}
const sel = pose(s.index);
const focusD = (sel.C[0] - cam[0]) * fw[0] + (sel.C[1] + 0.08 - cam[1]) * fw[1] + (sel.C[2] - cam[2]) * fw[2];
gl.bindFramebuffer(gl.FRAMEBUFFER, sceneFbo);
gl.viewport(0, 0, W, H);
gl.useProgram(prog);
gl.uniform3fv(U(prog, "uCam"), cam);
gl.uniform3fv(U(prog, "uRt"), rt);
gl.uniform3fv(U(prog, "uUp"), up);
gl.uniform3fv(U(prog, "uFw"), fw);
gl.uniform1f(U(prog, "uTan"), TAN);
gl.uniform1f(U(prog, "uAspect"), W / H);
gl.uniform2f(U(prog, "uRes"), W, H);
gl.uniform1i(U(prog, "uSS"), ss);
gl.uniform3fv(U(prog, "uSC[0]"), sc);
gl.uniform3fv(U(prog, "uSU[0]"), su);
gl.uniform3fv(U(prog, "uSV[0]"), sv);
gl.uniform3fv(U(prog, "uSN[0]"), sn);
gl.uniform1fv(U(prog, "uLift[0]"), lift);
gl.uniform1fv(U(prog, "uSpin[0]"), spin);
gl.uniform3fv(U(prog, "uL"), sun);
gl.uniform4fv(U(prog, "uWin"), s.narrow ? [0.06, 0.5, 0.85, 1.05] : [0.18, 0.08, 1.15, 0.62]);
gl.uniform1f(U(prog, "uFocus"), focusD);
gl.uniform1f(U(prog, "uAperture"), 1.1);
gl.uniform1i(U(prog, "uTex"), 0);
gl.bindVertexArray(vao);
gl.drawArrays(gl.TRIANGLES, 0, 3);
gl.bindFramebuffer(gl.FRAMEBUFFER, null);
gl.useProgram(progOut);
gl.uniform1i(U(progOut, "uScene"), 1);
gl.uniform2f(U(progOut, "uPx"), 1 / W, 1 / H);
gl.uniform1f(U(progOut, "uMaxR"), H * 0.012);
gl.uniform1f(U(progOut, "uTime"), reduce ? 0 : t);
gl.drawArrays(gl.TRIANGLES, 0, 3);
};
/** One small step: discs slide on springs and stop against the sleeve bottom, sleeves rock off the wall and fall back. */
const physics = (dt: number, now: number) => {
if (s.queued >= 0 && s.out[s.index] < 0.6) {
s.index = s.queued;
s.queued = -1;
s.outAt = now + 160;
s.tipV[s.index] -= TIP_KICK;
}
for (let i = 0; i < N; i++) {
const goal = i === s.index && s.queued < 0 && now > s.outAt ? 1 : 0;
const before = s.out[i];
s.outV[i] += (SLIDE_PULL * (goal - s.out[i]) - SLIDE_DRAG * s.outV[i]) * dt;
s.out[i] += s.outV[i] * dt;
if (s.out[i] < 0) {
s.out[i] = 0;
if (s.outV[i] < -0.4) s.tipV[i] -= s.outV[i] * 0.08;
s.outV[i] *= -0.18;
}
s.spin[i] += (s.out[i] - before) * 1.6;
// gravity pulls the sleeve back toward the wall; it cannot pass through it
s.tipV[i] += 2.6 * dt;
s.tip[i] += s.tipV[i] * dt;
if (s.tip[i] > 0) {
s.tip[i] = 0;
s.tipV[i] = s.tipV[i] > 0.12 ? -s.tipV[i] * 0.32 : 0;
}
s.tip[i] = Math.max(s.tip[i], -0.09);
}
const now_out = s.out[s.index];
if (s.queued >= 0 && s.textIn) {
s.textIn = false;
setInk(false);
}
if (!s.textIn && s.queued < 0 && now_out > 0.45) {
s.textIn = true;
setShown(s.index);
setInk(true);
}
};
let raf = 0, visible = true, last = performance.now(), slow = 0, frames = 0;
s.nextAuto = last + HOLD_MS;
const tick = (now: number) => {
const real = now - last;
const dt = Math.min(0.05, real / 1000);
last = now;
if (!s.paused && !document.hidden && now > s.nextAuto && s.queued < 0) {
s.queued = mod(s.index + 1, N);
s.nextAuto = now + HOLD_MS;
}
if (reduce) {
if (s.queued >= 0) {
s.index = s.queued;
s.queued = -1;
setShown(s.index);
setInk(true);
s.dirty = true;
}
for (let i = 0; i < N; i++) {
s.out[i] = i === s.index ? 1 : 0;
s.tip[i] = 0;
}
} else {
const sub = Math.max(1, Math.ceil(dt / 0.004));
for (let i = 0; i < sub; i++) physics(dt / sub, now);
s.cx += (s.px - s.cx) * Math.min(1, dt * 3);
s.cy += (s.py - s.cy) * Math.min(1, dt * 3);
}
if (!reduce || s.dirty) {
draw(now / 1000);
s.dirty = false;
// measure, do not guess: drop the supersampling first, then the resolution, if frames run long
if (!reduce && ++frames > 24) {
slow = slow * 0.9 + (real > 22 ? 1 : 0) * 0.1;
if (slow > 0.6) {
if (ss > 1) ss = 1;
else if (scale > 0.55) {
scale *= 0.85;
resize();
}
slow = 0;
frames = 0;
}
}
}
if (visible) raf = requestAnimationFrame(tick);
};
const io = new IntersectionObserver(([e]) => {
const was = visible;
visible = e.isIntersecting;
if (visible && !was) {
last = performance.now();
frames = 0;
raf = requestAnimationFrame(tick);
}
});
io.observe(wrap);
raf = requestAnimationFrame(tick);
const move = (e: PointerEvent) => {
const r = wrap.getBoundingClientRect();
s.px = clamp(((e.clientX - r.left) / r.width) * 2 - 1, -1, 1);
s.py = clamp(((e.clientY - r.top) / r.height) * 2 - 1, -1, 1);
s.dirty = true;
};
const leave = () => {
s.px = 0;
s.py = 0;
};
wrap.addEventListener("pointermove", move);
wrap.addEventListener("pointerleave", leave);
return () => {
alive = false;
cancelAnimationFrame(raf);
ro.disconnect();
io.disconnect();
wrap.removeEventListener("pointermove", move);
wrap.removeEventListener("pointerleave", leave);
gl.getExtension("WEBGL_lose_context")?.loseContext();
};
}, [reduce]);
const onKey = (e: React.KeyboardEvent) => {
const s = sim.current;
const cur = s.queued >= 0 ? s.queued : s.index;
if (e.key === "ArrowRight" || e.key === "ArrowDown") {
e.preventDefault();
pick(cur + 1);
} else if (e.key === "ArrowLeft" || e.key === "ArrowUp") {
e.preventDefault();
pick(cur - 1);
}
};
const pause = (v: boolean) => () => {
sim.current.paused = v;
if (!v) sim.current.nextAuto = performance.now() + HOLD_MS;
};
const r = records[shown];
const label = "text-[10px] font-semibold uppercase tracking-[0.26em] sm:text-[11px]";
return (
<section className="relative overflow-hidden bg-[#c9b394]" onFocus={pause(true)} onBlur={pause(false)} onPointerEnter={pause(true)} onPointerLeave={pause(false)}>
<style>{`@keyframes vinyl-sleeve-testimonials-ink { from { opacity: 0; transform: translateY(16px); filter: blur(6px); } to { opacity: 1; transform: none; filter: blur(0); } } .vinyl-sleeve-testimonials-ink { animation: vinyl-sleeve-testimonials-ink 680ms cubic-bezier(0.2, 0.7, 0.2, 1) both; } @media (prefers-reduced-motion: reduce) { .vinyl-sleeve-testimonials-ink { animation: none; } }`}</style>
<div
ref={wrapRef}
role="group"
aria-roledescription="carousel"
aria-label="Client testimonials shown as three record sleeves on a sunlit shelf. Choose a sleeve, or use the left and right arrow keys, to pull out that person's record and read their quote."
tabIndex={0}
onKeyDown={onKey}
className="relative h-[740px] w-full select-none outline-none focus-visible:ring-2 focus-visible:ring-inset focus-visible:ring-[#2b1a10]/70 sm:h-[760px]"
>
<canvas ref={canvasRef} aria-hidden="true" className={`absolute inset-0 h-full w-full ${mode === "still" ? "hidden" : ""}`} />
{/* the still room, for browsers without WebGL 2 */}
{mode === "still" && (
<div aria-hidden="true" className="absolute inset-0" style={{ background: "linear-gradient(160deg, #d8c3a3 0%, #c4ab88 60%, #b39874 100%)" }}>
<div className="absolute inset-0" style={{ background: "linear-gradient(118deg, transparent 30%, rgba(255,226,180,0.55) 30.5%, rgba(255,226,180,0.55) 78%, transparent 78.5%)" }} />
<div className="absolute inset-x-0 h-[4%]" style={{ top: "80%", background: "linear-gradient(180deg, #8a5a33, #5e3a1f)", boxShadow: "0 18px 30px -10px rgba(50,25,5,0.55)" }} />
<div className="absolute flex items-end gap-[2.4%]" style={{ left: narrow ? "8%" : "46%", right: narrow ? "8%" : "6%", bottom: "20%" }}>
{records.map((rec, i) => (
<div key={rec.name} className="relative aspect-square flex-1" style={{ transform: `perspective(900px) rotateX(${LEANS[i] * 57}deg)`, transformOrigin: "bottom" }}>
{i === shown && <div className="absolute inset-x-[2%] -top-[50%] aspect-square rounded-full" style={{ background: "repeating-radial-gradient(circle, #141414 0 2px, #1d1d1d 2px 3px)", boxShadow: "0 0 0 1px #000" }}><div className="absolute inset-[33%] rounded-full" style={{ background: rec.label }} /></div>}
<img src={rec.src} alt="" width={900} height={900} className="relative h-full w-full object-cover" style={{ background: rec.tone, boxShadow: "14px 16px 26px -8px rgba(60,30,5,0.5)" }} />
</div>
))}
</div>
</div>
)}
{/* the quote, printed onto the wall: real text, multiplied so the sun and shade show through */}
<div
aria-live="polite"
className={`pointer-events-none absolute ${narrow ? "inset-x-6 top-[11%]" : "left-[6%] top-[15%] w-[36%] max-w-[540px]"}`}
style={{ mixBlendMode: mode === "gl" ? "multiply" : "normal" }}
>
<div className="transition-opacity duration-300 motion-reduce:transition-none" style={{ opacity: ink ? 1 : 0 }}>
<div key={shown} className="vinyl-sleeve-testimonials-ink">
<QuoteBody r={r} narrow={narrow} />
<span className="sr-only">Record sleeve photo: {r.alt}</span>
</div>
</div>
</div>
{/* invisible buttons laid over each sleeve, kept in place by the render loop */}
{mode === "gl" &&
records.map((rec, i) => (
<button
key={rec.name}
ref={(el) => {
hitRefs.current[i] = el;
}}
type="button"
onClick={() => pick(i)}
aria-label={`Pull out ${rec.name}'s record`}
aria-pressed={shown === i}
className="absolute left-0 top-0 cursor-pointer rounded-sm bg-transparent outline-none focus-visible:ring-2 focus-visible:ring-[#fff3e2] focus-visible:ring-offset-2 focus-visible:ring-offset-[#2b1a10]"
style={{ width: 0, height: 0 }}
/>
))}
<div className="pointer-events-none absolute inset-x-0 bottom-0 flex items-end justify-between gap-4 p-5 sm:p-9">
<p className={`${label} rounded-full bg-[#fff3e2]/85 px-4 py-2.5`} style={{ fontFamily: GROTESK, color: INK }}>
<span className="tabular-nums">{String(shown + 1).padStart(2, "0")}</span>
<span className="mx-2 opacity-50">/</span>
<span className="tabular-nums">{String(N).padStart(2, "0")}</span>
</p>
<div className="pointer-events-auto flex gap-2">
{records.map((rec, i) => (
<button
key={rec.name}
type="button"
onClick={() => pick(i)}
aria-label={`Show ${rec.name}`}
aria-current={shown === i ? "true" : undefined}
className="grid h-11 w-11 place-items-center rounded-full border border-[#2b1a10]/25 bg-[#fff3e2]/75 transition hover:bg-[#fff3e2] focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[#2b1a10]"
>
<span aria-hidden="true" className="block h-4 w-4 rounded-full" style={{ background: shown === i ? "#151110" : "transparent", border: "1.5px solid #2b1a10", boxShadow: shown === i ? `inset 0 0 0 4px ${rec.label}` : "none" }} />
</button>
))}
</div>
</div>
</div>
</section>
);
}
Install with one command: npx shadcn@latest add https://we.inc/r/vinyl-record-sleeve-testimonials-in-webgl-on-a-sunlit-shelf-where-the-chosen-record-slides-half-out-and-catches-light-in-its-grooves.json
The grooves are not modelled one by one. For each point on the disc the shader takes the direction the groove runs, which is a circle round the centre, and uses a hair-style anisotropic highlight: brightness depends on how close that groove direction is to being square to the half vector between the sun and the eye. Along one radius that holds true, so the light gathers into a thin bright line, while the smooth bands between tracks reflect the window like a mirror instead.
No. One full-screen fragment shader intersects every ray with the wall plane, a box for the shelf, three thin boxes for the sleeves and a flat disc for each record. Shadows are found by firing two jittered rays toward the sun through the same shapes, which gives the soft edge you see where a sleeve stands off the wall.
Each pixel is traced four times on a rotated grid and the results are averaged after tone mapping. If the browser cannot keep up, the loop measures its own frame times and drops to one sample, then lowers the render size, rather than stuttering.
After each frame the code projects the corners of every sleeve, plus the part of its record that is out, through the same camera the shader uses and moves a transparent button over that rectangle. That keeps clicking, tabbing and screen readers working with no hit testing inside WebGL.
The shader is written for three sleeves to keep the loops short. To add one, raise the array sizes in the shader from 3 to 4, add a value to `XS`, `LEANS` and `YAWS`, and widen the shelf view by raising the `needW` values in the draw function.
No. An intersection observer stops the animation loop as soon as the section leaves the screen and starts it again when it returns, and the canvas is capped at about 1.1 million pixels.
Related: Framed Portrait Testimonials in WebGL with a Leaning Two-Sided Frame That Swings on Its Corner and Claps Back onto a Sunlit Wall, Vinyl Record Sleeve Gallery Where the Disc Slides out and Spins Beside Its Cover, Rotary Card File Testimonials with Typed Quote Cards That Tip over the Spindle and Land with a Bounce.
More testimonials or all free UI components. Start for free to have a full site built around it.
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