A large walnut frame with a bevelled mount leans against an apricot plaster wall on a terracotta tile floor, and the quote is set very large on the wall beside it. The room is drawn in raw WebGL 2 with a real camera: sun comes through a window with glazing bars and a branch outside, the frame throws a wedge of soft shadow that widens toward the floor, the tiles mirror the wall and the picture, and the glass picks up the window as it turns. The frame has a portrait on both sides. To change speaker it stands up, pivots on one bottom corner like a heavy door, drops back and knocks against the wall twice before it settles, while the sun moves to a new place for that person. The quote is ordinary page text, placed on the wall with a CSS matrix and multiplied into the picture, so shade falls across the letters. On phones the quote sits on the wall above the frame, and without WebGL a flat version with the same content takes over.
import { useCallback, useEffect, useRef, useState } from "react";
import { useReducedMotion } from "framer-motion";
/** The speakers, in order. `focus` is the crop centre of the photo (0 to 1), `tone` shows until the photo arrives. */
const voices = [
{
quote: "My regulars found the new shop before I had finished my coffee.",
name: "Rosalía Méndez",
role: "Owner, Casa Méndez Bakery",
src: "https://images.pexels.com/photos/15672675/pexels-photo-15672675.jpeg?auto=compress&cs=tinysrgb&w=900",
alt: "Older woman with silver hair and round glasses resting her chin on her folded hands in front of a bright yellow wall",
focus: [0.5, 0.52],
tone: "#e2b10c",
},
{
quote: "They asked what we wanted to stop doing. Nobody had asked us that.",
name: "Kwabena Asante",
role: "Founder, Ridgeline Roasters",
src: "https://images.pexels.com/photos/15689960/pexels-photo-15689960.jpeg?auto=compress&cs=tinysrgb&w=900",
alt: "Man in a white striped shirt leaning toward the camera against a deep red backdrop",
focus: [0.5, 0.4],
tone: "#b3301c",
},
{
quote: "We briefed them on a napkin. They built exactly the napkin.",
name: "Amara Diallo",
role: "Studio director, Fold and Thread",
src: "https://images.pexels.com/photos/33276169/pexels-photo-33276169.jpeg?auto=compress&cs=tinysrgb&w=900",
alt: "Woman in a white vest looking over her shoulder with one hand raised, against a teal backdrop",
focus: [0.55, 0.42],
tone: "#4f8f88",
},
{
quote: "Launch day was quiet. I have never been so glad to be bored.",
name: "Theo Marlowe",
role: "Head of product, Pinewater",
src: "https://images.pexels.com/photos/8801041/pexels-photo-8801041.jpeg?auto=compress&cs=tinysrgb&w=900",
alt: "Smiling man with short curly hair in a pale pink T-shirt against a dusty pink backdrop",
focus: [0.5, 0.42],
tone: "#c98f9a",
},
];
/** Where the sun sits for each speaker: direction toward it, colour, strength, how much leaf shade, and where the window light lands. */
const suns = [
{ dir: [0.5, 0.56, 0.66], col: [1.0, 0.92, 0.8], power: 1.0, leaf: 0.6, aim: [0.5, 1.02] },
{ dir: [0.78, 0.36, 0.52], col: [1.0, 0.8, 0.58], power: 1.12, leaf: 0.95, aim: [0.3, 0.7] },
{ dir: [0.3, 0.78, 0.55], col: [1.0, 0.96, 0.88], power: 0.96, leaf: 0.0, aim: [0.62, 0.86] },
{ dir: [0.66, 0.5, 0.56], col: [1.0, 0.86, 0.7], power: 1.06, leaf: 0.7, aim: [0.4, 1.12] },
];
const N = voices.length;
const MASTHEAD = "Oriel"; // the wordmark in the top corner
const KICKER = "In their words"; // small label above the quote
const HOLD_MS = 5600; // rest between automatic turns
const SWING = 10; // pull of the frame toward its new side
const SWING_DRAG = 4.2; // lower lets the frame arrive faster and clap harder
const BOUNCE = 0.36; // how much speed survives each knock against the wall
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 = "#3d0f0b";
// The frame, in metres. It stands on the floor and leans back until its top edge meets the wall.
const FW = 1.0;
const FH = 1.32;
const FD = 0.026; // half its thickness
const FM = 0.055; // width of the moulding
const ZG = 0.015; // the glass sits this far from the middle of the frame
const LEAN = 0.16; // resting lean, in radians
const Z0 = FH * Math.sin(LEAN) + FD * Math.cos(LEAN);
const CAM_Z = 5.6;
const TEX_W = 728;
const TEX_H = 984;
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 smooth = (a: number, b: number, v: number) => {
const t = clamp((v - a) / (b - a), 0, 1);
return t * t * (3 - 2 * t);
};
const f = (v: number) => v.toFixed(4);
const VS = `#version 300 es
precision highp float;
layout(location = 0) in vec3 aPos;
layout(location = 1) in vec3 aNor;
layout(location = 2) in vec2 aUv;
layout(location = 3) in float aMat;
uniform vec3 uC, uU, uV, uN, uCam, uRt, uUp, uFw;
uniform float uTan, uAspect;
out vec3 vW; out vec3 vL; out vec3 vNor; out vec2 vUv; out float vMat;
void main() {
bool fr = aMat > 2.5;
vW = fr ? uC + uU * aPos.x + uV * aPos.y + uN * aPos.z : aPos;
vNor = fr ? uU * aNor.x + uV * aNor.y + uN * aNor.z : aNor;
vL = aPos; vUv = aUv; vMat = aMat;
vec3 d = vW - uCam;
float z = dot(d, uFw);
gl_Position = vec4(dot(d, uRt) / (uTan * uAspect), dot(d, uUp) / uTan, (z * 60.2 - 24.0) / 59.8, z);
}`;
const FS = `#version 300 es
precision highp float;
precision highp sampler2DArray;
const vec3 BC = vec3(${f(FW / 2)}, ${f(FH / 2)}, 0.0);
const vec3 BH = vec3(${f(FW / 2)}, ${f(FH / 2)}, ${f(FD)});
const float M = ${f(FM)};
const vec3 WALLC = vec3(0.84, 0.34, 0.14);
const vec3 AMB = vec3(0.5, 0.49, 0.53);
const vec3 TILE = vec3(0.42, 0.13, 0.065);
const vec3 WOOD = vec3(0.085, 0.034, 0.014);
uniform vec3 uC, uU, uV, uN, uCam, uFw;
uniform vec3 uL, uLu, uLv, uLT, uSun;
uniform float uLeaf, uTime, uFocus, uAperture;
uniform float uLayer[2];
uniform sampler2DArray uTex;
in vec3 vW; in vec3 vL; in vec3 vNor; in vec2 vUv; in float vMat;
out vec4 o;
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 * 2.1 + 7.3) + 0.125 * vnoise(p * 4.3 + 1.7) + 0.0625 * vnoise(p * 8.9); }
float sbox(vec2 p, vec2 h, float s) { vec2 d = smoothstep(h + s, h - s, abs(p)); return d.x * d.y; }
float sdRect(vec2 p, vec2 h) { vec2 q = abs(p) - h; return length(max(q, 0.0)) + min(max(q.x, q.y), 0.0); }
vec3 toLocal(vec3 p) { vec3 d = p - uC; return vec3(dot(d, uU), dot(d, uV), dot(d, uN)); }
vec3 dirLocal(vec3 v) { return vec3(dot(v, uU), dot(v, uV), dot(v, uN)); }
float sdFrame(vec3 l) { vec3 q = abs(l - BC) - BH; return length(max(q, 0.0)) + min(max(q.x, max(q.y, q.z)), 0.0); }
// Does a ray meet the frame? Returns the distance, and the local point it lands on.
float hitFrame(vec3 ro, vec3 rd, out vec3 lp, out vec3 ln) {
vec3 o = toLocal(ro) - BC, d = dirLocal(rd);
vec3 inv = 1.0 / (d + vec3(1e-6));
vec3 t1 = (-BH - o) * inv, t2 = (BH - o) * inv;
vec3 tn = min(t1, t2), tf = max(t1, t2);
float a = max(tn.x, max(tn.y, tn.z)), b = min(tf.x, min(tf.y, tf.z));
if (a > b || a < 1e-3) return -1.0;
lp = o + d * a + BC;
ln = tn.x > tn.y && tn.x > tn.z ? vec3(-sign(d.x), 0, 0) : tn.y > tn.z ? vec3(0, -sign(d.y), 0) : vec3(0, 0, -sign(d.z));
return a;
}
// Soft shadow of the frame, walked toward the sun through its distance field.
float frameShadow(vec3 P, int steps) {
vec3 o = toLocal(P), d = dirLocal(uL);
float res = 1.0, t = 0.015;
for (int i = 0; i < steps; i++) {
float h = sdFrame(o + d * t);
res = min(res, 11.0 * h / t);
if (res < 0.003 || t > 3.5) break;
t += clamp(h, 0.012, 0.5);
}
res = clamp(res, 0.0, 1.0);
return res * res * (3.0 - 2.0 * res);
}
// Shade from a branch outside: pointed leaves scattered in clumps, one per cell of a grid.
float leaves(vec2 q, float salt) {
vec2 id = floor(q);
float sh = 0.0;
for (int j = -1; j <= 1; j++) for (int i = -1; i <= 1; i++) {
vec2 c = id + vec2(float(i), float(j));
float h = hash(c + salt);
if (h + 0.75 * vnoise(c * 0.33 + salt) < 0.86) continue;
vec2 ctr = c + 0.5 + (vec2(hash(c + salt + 1.3), hash(c + salt + 2.9)) - 0.5) * 0.9;
float a = 2.2 + (hash(c + salt + 4.1) - 0.5) * 2.4;
vec2 d = q - ctr;
d = vec2(d.x * cos(a) + d.y * sin(a), -d.x * sin(a) + d.y * cos(a));
float size = 0.42 + 0.3 * h;
float r = length(vec2(d.x, d.y * 2.5)) / size + abs(d.x) / size * 0.35;
sh = max(sh, smoothstep(1.0, 0.72, r));
}
return sh;
}
// The window the sun comes through: panes, glazing bars and a branch outside.
float gobo(vec3 P, bool fine) {
vec3 d = P - uLT;
vec2 g = vec2(dot(d, uLu), dot(d, uLv));
float w = sbox(g, vec2(1.7, 1.12), 0.06);
float bars = (1.0 - 0.9 * smoothstep(0.034, 0.012, abs(abs(g.x) - 0.57))) * (1.0 - 0.9 * smoothstep(0.034, 0.012, abs(g.y - 0.64)));
vec2 sway = 0.035 * vec2(sin(uTime * 0.7 + g.y * 2.6), cos(uTime * 0.53 + g.x * 2.1));
float leaf = fine ? 1.0 - 0.92 * max(leaves(g * 3.1 + sway * 2.0, 0.0), leaves(g * 4.6 - sway * 3.0 + 5.0, 7.0)) : 0.45 + 0.55 * smoothstep(0.35, 0.65, vnoise(g * 5.0 + 3.0));
float where = smoothstep(-0.5, 0.9, g.y * 0.9 - g.x * 0.5);
return w * bars * mix(1.0, leaf, uLeaf * where);
}
// What polished things see when they look back into the room.
vec3 room(vec3 rd, float soft) {
vec3 c = mix(vec3(0.34, 0.2, 0.13), vec3(0.95, 0.9, 0.84), smoothstep(-0.05, 0.55, rd.y));
if (rd.y < 0.0) c = mix(c, TILE * 0.8, smoothstep(0.0, -0.12, rd.y));
float fwd = dot(rd, uL);
if (fwd > 0.0) {
vec2 a = vec2(dot(rd, uLu), dot(rd, uLv)) / fwd;
float win = sbox(a, vec2(0.3, 0.42), mix(0.012, 0.22, soft));
win *= 1.0 - smoothstep(0.016, 0.006, abs(a.x)) * 0.9 * (1.0 - soft);
win *= 1.0 - smoothstep(0.016, 0.006, abs(a.y - 0.2)) * 0.9 * (1.0 - soft);
c += uSun * 9.0 * win * (1.0 - 0.8 * soft);
}
// a pale ceiling panel whose slanted edge shows as the sheen on the glass
float pan = smoothstep(0.3, 0.325, rd.y + rd.x * 0.5 * sign(uL.x)) * smoothstep(0.8, 0.45, rd.y) * step(0.0, rd.z);
c += vec3(1.0, 0.95, 0.88) * 1.7 * pan;
return c;
}
vec3 wallLight(vec3 P, vec3 n, bool fine) {
float sh = frameShadow(P, fine ? 22 : 9);
float near = sdFrame(toLocal(P));
float ao = (1.0 - 0.32 * exp(-P.y / 0.16)) * mix(0.5, 1.0, smoothstep(0.0, 0.2, near));
vec3 bounce = TILE * uSun * max(uL.y, 0.0) * 1.3 * exp(-P.y / 0.55);
return uSun * max(dot(n, uL), 0.0) * gobo(P, fine) * sh + AMB * ao + bounce;
}
vec3 wallCol(vec3 P, bool fine) {
float cloud = fbm(P.xy * 1.15 + 4.0);
vec3 alb = WALLC * (0.86 + 0.26 * cloud);
vec3 n = vec3(0, 0, 1);
if (fine) {
// trowel marks: a height field, tilted into a normal so raking sun picks it out
vec2 q = P.xy * vec2(7.0, 5.0);
float e = 0.02;
float h0 = fbm(q) + 0.35 * fbm(q * 5.0), hx = fbm(q + vec2(e, 0)) + 0.35 * fbm(q * 5.0 + vec2(e * 5.0, 0)), hy = fbm(q + vec2(0, e)) + 0.35 * fbm(q * 5.0 + vec2(0, e * 5.0));
n = normalize(vec3(-(hx - h0) / e * 0.028, -(hy - h0) / e * 0.028, 1.0));
alb *= 0.95 + 0.1 * h0;
}
return alb * wallLight(P, n, fine);
}
// The picture side of the frame: glass over a bevelled mount over the print.
vec3 faceCol(vec3 l, vec3 P, vec3 Nw, float flip, int idx, vec3 V, bool fine) {
vec2 p = vec2(flip > 0.0 ? l.x : ${f(FW)} - l.x, l.y);
vec2 uv = (p - M) / (vec2(${f(FW)}, ${f(FH)}) - 2.0 * M);
vec3 alb = textureLod(uTex, vec3(uv, uLayer[idx]), fine ? 0.0 : 2.5).rgb;
vec3 Ll = vec3(dot(uL, uU) * flip, dot(uL, uV), dot(uL, Nw));
float ndl = max(Ll.z, 0.0);
vec2 off = Ll.xy / max(Ll.z, 0.3);
vec2 pc = vec2(${f(FW / 2)}, 0.675), ph = vec2(0.35, 0.495);
float dWin = sdRect(p - pc, ph);
float lip = 1.0 - smoothstep(-0.007, 0.001, sdRect(p + off * 0.009 - BC.xy, BH.xy - M));
float edge = -sdRect(p - BC.xy, BH.xy - M);
float ao = 1.0 - 0.3 * exp(-edge / 0.012);
float lit = ndl * lip;
float aa = max(fwidth(dWin), 1e-4);
float inPrint = 1.0 - smoothstep(-aa, 0.0, dWin);
float onBevel = smoothstep(-aa, 0.0, dWin) * (1.0 - smoothstep(0.005 - aa, 0.005, dWin));
float printLit = lit * (1.0 - smoothstep(-0.0035, 0.0005, sdRect(p + off * 0.003 - pc, ph)));
float printAo = ao * (1.0 - 0.25 * exp(min(dWin, 0.0) / 0.004));
// the cut edge of the mount, at forty-five degrees, showing its white core
vec2 q = abs(p - pc) - ph;
vec2 g = q.x > q.y ? vec2(sign(p.x - pc.x), 0.0) : vec2(0.0, sign(p.y - pc.y));
float bevLit = max(dot(normalize(vec3(-g * 0.72, 0.7)), Ll), 0.0) * lip;
vec3 matAlb = alb * (0.965 + 0.06 * vnoise(p * 1400.0));
alb = mix(mix(matAlb, vec3(0.96, 0.95, 0.91), onBevel), pow(alb, vec3(1.04)), inPrint);
lit = mix(mix(lit, bevLit, onBevel), printLit, inPrint);
ao = mix(ao, printAo, inPrint);
vec3 col = alb * (uSun * lit * gobo(P, fine) + AMB * ao + vec3(0.05, 0.03, 0.02));
if (!fine) return col;
float F = 0.045 + 0.955 * pow(1.0 - max(dot(Nw, V), 0.0), 5.0);
vec3 R = reflect(-V, Nw);
vec3 seen = R.z < -0.05 ? WALLC * (AMB + uSun * 0.5) : room(R, 0.0);
// faint wipe marks on the glass, only visible where it mirrors something bright
float wipe = 0.78 + 0.44 * fbm(p * vec2(5.0, 2.2) + 11.0);
return col * (1.0 - F) * 0.985 + seen * F * wipe;
}
vec3 woodCol(vec2 uv, vec3 P, vec3 Nw, vec3 V) {
float fig = fbm(vec2(uv.x * 2.2, uv.y * 70.0 + 3.0 * vnoise(uv * vec2(1.5, 9.0))));
float pore = vnoise(vec2(uv.x * 38.0, uv.y * 420.0));
vec3 alb = mix(WOOD, WOOD * vec3(1.25, 0.9, 0.7), vnoise(uv * vec2(0.9, 30.0))) * (0.4 + 1.25 * fig) * (0.8 + 0.4 * pore);
// the mitre: a hairline where two lengths of moulding meet at each corner
vec2 lc = min(vL.xy, vec2(${f(FW)}, ${f(FH)}) - vL.xy);
alb *= 1.0 - 0.6 * smoothstep(0.0016, 0.0004, abs(lc.x - lc.y)) * step(abs(vL.z), ${f(FD)} + 0.01);
float g = gobo(P, true);
float ao = 0.55 + 0.45 * smoothstep(0.0, 0.12, P.y);
vec3 col = alb * (uSun * max(dot(Nw, uL), 0.0) * g + AMB * ao);
float F = 0.05 + 0.95 * pow(1.0 - max(dot(Nw, V), 0.0), 5.0);
vec3 R = reflect(-V, Nw);
col += (R.z < -0.1 ? WALLC * 0.7 : room(R, 1.0)) * F * 0.75;
col += uSun * g * pow(max(dot(Nw, normalize(uL + V)), 0.0), 60.0) * 0.5 * (0.75 + 0.25 * fig);
return col;
}
vec3 tonemap(vec3 x) { x *= 0.8; return clamp((x * (2.51 * x + 0.03)) / (x * (2.43 * x + 0.59) + 0.14), 0.0, 1.0); }
vec4 pack(vec3 col, float depth) {
float coc = clamp(uAperture * (1.0 - uFocus / max(depth, 0.05)), -1.0, 1.0);
return vec4(pow(tonemap(col), vec3(1.0 / 2.2)), 0.5 + 0.5 * coc);
}
void main() {
vec3 V = normalize(uCam - vW);
float depth = dot(vW - uCam, uFw);
vec3 col;
if (vMat < 0.5) {
col = wallCol(vW, true);
} else if (vMat < 1.5) {
// waxed terracotta tiles, each one laid a hair out of level
vec2 tc = vW.xz / 0.3 + vec2(0.5, 0.18);
vec2 id = floor(tc), fr = fract(tc);
float e = min(min(fr.x, 1.0 - fr.x), min(fr.y, 1.0 - fr.y)) * 0.3;
float px = max(fwidth(tc.x), fwidth(tc.y)) * 0.3;
float grout = smoothstep(0.0045 + px, 0.0025, e) / (1.0 + px * 60.0);
float tone = hash(id);
float blot = fbm(vW.xz * 7.0 + id * 3.0);
vec3 alb = TILE * (0.72 + 0.5 * tone) * (0.8 + 0.4 * blot);
alb = mix(alb, vec3(0.34, 0.22, 0.16), grout);
vec3 n = normalize(vec3((hash(id + 3.7) - 0.5) * 0.016, 1.0, (hash(id + 9.1) - 0.5) * 0.016));
float rough = mix(0.012 + 0.05 * blot * blot, 0.5, grout);
float seed = ign(gl_FragCoord.xy);
vec3 refl = vec3(0.0);
float far = 0.0;
for (int k = 0; k < 5; k++) {
float a = 6.2832 * fract(seed + float(k) * 0.618034);
float r = sqrt((float(k) + 0.5) / 5.0);
vec3 R = reflect(-V, normalize(n + vec3(cos(a), 0.0, sin(a)) * r * rough));
vec3 lp, ln;
float t = hitFrame(vW, R, lp, ln);
if (t > 0.0) {
vec3 Nw = uU * ln.x + uV * ln.y + uN * ln.z;
vec3 Ph = vW + R * t;
bool open = abs(ln.z) > 0.5 && sdRect(lp.xy - BC.xy, BH.xy - M) < 0.0;
refl += open ? faceCol(lp, Ph, Nw, ln.z, ln.z > 0.0 ? 0 : 1, -R, false) : WOOD * (uSun * max(dot(Nw, uL), 0.0) + AMB);
far += t;
} else if (R.z < -1e-3) {
float tw = -vW.z / R.z;
refl += wallCol(vW + R * tw, false);
far += tw;
} else { refl += room(R, 0.3); far += 6.0; }
}
refl /= 5.0; far /= 5.0;
float near = sdFrame(toLocal(vW));
float ao = (1.0 - 0.45 * exp(-vW.z / 0.1)) * mix(0.35, 1.0, smoothstep(0.0, 0.14, near));
vec3 dif = uSun * max(dot(n, uL), 0.0) * gobo(vW, true) * frameShadow(vW, 22) + AMB * ao;
float F = 0.05 + 0.95 * pow(1.0 - clamp(dot(V, n), 0.0, 1.0), 5.0);
F *= 1.0 - grout;
col = alb * dif * (1.0 - F) + refl * F * (0.5 + 0.5 * ao);
depth += far * clamp(F * 2.0, 0.0, 1.0) * (1.0 - smoothstep(0.02, 0.08, rough));
} else if (vMat < 2.5) {
// skirting board, painted the wall colour in a harder gloss
vec3 n = normalize(vNor);
float ao = 0.55 + 0.45 * smoothstep(0.0, 0.07, vW.y);
col = WALLC * 0.93 * (uSun * max(dot(n, uL), 0.0) * gobo(vW, true) * frameShadow(vW, 16) + AMB * ao + TILE * uSun * 0.5);
float F = 0.04 + 0.96 * pow(1.0 - max(dot(n, V), 0.0), 5.0);
col += room(reflect(-V, n), 1.0) * F * 0.25;
} else if (vMat < 3.5) {
col = woodCol(vUv, vW, normalize(vNor), V);
} else {
float flip = vMat < 4.5 ? 1.0 : -1.0;
col = faceCol(vL, vW, normalize(vNor), flip, vMat < 4.5 ? 0 : 1, V, true);
}
o = pack(col, depth);
}`;
const VS_FULL = `#version 300 es
out vec2 vUv;
void main() { vec2 p = vec2(float((gl_VertexID << 1) & 2), float(gl_VertexID & 2)); vUv = p; gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0); }`;
const FS_LENS = `#version 300 es
precision highp float;
uniform sampler2D uScene;
uniform vec2 uPx;
uniform float uMaxR;
in vec2 vUv;
out vec4 o;
float ign(vec2 p) { return fract(52.9829189 * fract(dot(p, vec2(0.06711056, 0.00583715)))); }
void main() {
vec4 c0 = texture(uScene, vUv);
float coc0 = abs(c0.a * 2.0 - 1.0);
vec3 lin0 = pow(c0.rgb, vec3(2.2));
vec3 acc = lin0; float wsum = 1.0; float spread = coc0;
float rot = 6.2832 * ign(gl_FragCoord.xy);
for (int k = 1; k < 44; k++) {
float r = k < 32 ? sqrt(float(k) / 32.0) * uMaxR : sqrt(float(k - 31) / 12.0) * min(uMaxR, 3.0);
float a = float(k) * 2.39996 + rot;
vec4 s = texture(uScene, vUv + vec2(cos(a), sin(a)) * r * uPx);
float sc = s.a * 2.0 - 1.0;
float cs = abs(sc);
if (sc > c0.a * 2.0 - 1.0) cs = min(cs, coc0 * 1.6 + 0.02);
float w = smoothstep(r - 1.0, r + 1.0, cs * uMaxR);
acc += pow(s.rgb, vec3(2.2)) * w; wsum += w; spread = max(spread, cs * step(0.5, w));
}
o = vec4(pow(acc / wsum, vec3(1.0 / 2.2)), spread);
}`;
const FS_OUT = `#version 300 es
precision highp float;
uniform sampler2D uScene;
uniform vec2 uPx;
uniform float uTime;
in vec2 vUv;
out vec4 o;
float ign(vec2 p) { return fract(52.9829189 * fract(dot(p, vec2(0.06711056, 0.00583715)))); }
void main() {
vec4 c = texture(uScene, vUv);
float r = clamp(c.a * 4.0, 0.0, 1.0) * 1.5;
vec3 col = c.rgb * 4.0;
for (int k = 0; k < 8; k++) {
float a = float(k) * 0.7854;
col += texture(uScene, vUv + vec2(cos(a), sin(a)) * r * (k % 2 == 0 ? 1.0 : 1.9) * uPx).rgb;
}
col /= 12.0;
vec2 q = vUv - 0.5;
col *= 1.0 - 0.42 * dot(q, q);
col += (ign(gl_FragCoord.xy + fract(uTime) * 61.0) - 0.5) * 0.022;
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;
}
/** Wall, floor, skirting, then the frame: a mitred moulding swept from a rounded profile, and a pane on each side. */
function sceneMesh() {
const out: number[] = [];
const quad = (p: number[][], n: number[][], uv: number[][], mat: number) => {
for (const i of [0, 1, 2, 0, 2, 3]) out.push(...p[i], ...n[i], ...uv[i], mat);
};
const flat = (p: number[][], n: number[], mat: number) => quad(p, [n, n, n, n], [[0, 0], [0, 0], [0, 0], [0, 0]], mat);
flat([[-40, 0, 0], [40, 0, 0], [40, 14, 0], [-40, 14, 0]], [0, 0, 1], 0);
flat([[-40, 0, 0], [40, 0, 0], [40, 0, 30], [-40, 0, 30]], [0, 1, 0], 1);
const st = 0.014, sh = 0.085;
flat([[-40, 0, st], [40, 0, st], [40, sh - 0.004, st], [-40, sh - 0.004, st]], [0, 0, 1], 2);
quad([[-40, sh - 0.004, st], [40, sh - 0.004, st], [40, sh, st - 0.004], [-40, sh, st - 0.004]], [[0, 0, 1], [0, 0, 1], [0, 1, 0], [0, 1, 0]], [[0, 0], [0, 0], [0, 0], [0, 0]], 2);
flat([[-40, sh, st - 0.004], [40, sh, st - 0.004], [40, sh, 0], [-40, sh, 0]], [0, 1, 0], 2);
// half of the moulding's cross-section: [inset from the outer edge, height, normal]
const half: number[][] = [[0, 0, -1, 0]];
const r1 = 0.007, r2 = 0.004;
for (let i = 0; i <= 6; i++) {
const a = Math.PI - (i / 6) * (Math.PI / 2);
half.push([r1 + r1 * Math.cos(a), FD - r1 + r1 * Math.sin(a), Math.cos(a), Math.sin(a)]);
}
for (let i = 0; i <= 5; i++) {
const a = Math.PI / 2 - (i / 5) * (Math.PI / 2);
half.push([FM - r2 + r2 * Math.cos(a), FD - r2 + r2 * Math.sin(a), Math.cos(a), Math.sin(a)]);
}
half.push([FM, ZG - 0.001, 1, 0]);
const prof = [...half.slice(1).reverse().map(([t, z, nt, nz]) => [t, -z, nt, -nz]), ...half];
let arc = 0;
const arcs = prof.map((p, i) => (i ? (arc += Math.hypot(p[0] - prof[i - 1][0], p[1] - prof[i - 1][1])) : 0));
const corner = (k: number, t: number) => [[t, t], [FW - t, t], [FW - t, FH - t], [t, FH - t]][k % 4];
const inward = [[0, 1], [-1, 0], [0, -1], [1, 0]];
for (let k = 0; k < 4; k++) {
for (let i = 0; i < prof.length - 1; i++) {
const [a, b] = [prof[i], prof[i + 1]];
const pts = [[k, a], [k + 1, a], [k + 1, b], [k, b]] as const;
const along = (c: number[]) => (k % 2 === 0 ? c[0] : c[1]) + k * 3.3;
quad(
pts.map(([kk, p]) => [...corner(kk, p[0]), p[1]]),
pts.map(([, p]) => [inward[k][0] * p[2], inward[k][1] * p[2], p[3]]),
pts.map(([kk, p]) => [along(corner(kk, p[0])), arcs[p === a ? i : i + 1]]),
3,
);
}
}
const e = FM - 0.002;
const zero = [[0, 0], [0, 0], [0, 0], [0, 0]];
quad([[e, e, ZG], [FW - e, e, ZG], [FW - e, FH - e, ZG], [e, FH - e, ZG]], Array(4).fill([0, 0, 1]), zero, 4);
quad([[e, e, -ZG], [FW - e, e, -ZG], [FW - e, FH - e, -ZG], [e, FH - e, -ZG]], Array(4).fill([0, 0, -1]), zero, 5);
return new Float32Array(out);
}
/** One sheet per speaker: the mount, the print cropped into its window, and a pencilled caption underneath. */
function paintSheet(ctx: CanvasRenderingContext2D, v: (typeof voices)[number], index: number, img: HTMLImageElement | null) {
ctx.fillStyle = "#efe9dc";
ctx.fillRect(0, 0, TEX_W, TEX_H);
const [x, y, w, h] = [84, 84, 560, 792];
ctx.fillStyle = v.tone;
ctx.fillRect(x, y, w, h);
if (img) {
const s = Math.max(w / img.naturalWidth, h / img.naturalHeight);
const iw = img.naturalWidth * s, ih = img.naturalHeight * s;
ctx.save();
ctx.beginPath();
ctx.rect(x, y, w, h);
ctx.clip();
ctx.drawImage(img, x + clamp(w / 2 - v.focus[0] * iw, w - iw, 0), y + clamp(h / 2 - v.focus[1] * ih, h - ih, 0), iw, ih);
ctx.restore();
}
ctx.fillStyle = "rgba(60, 48, 42, 0.82)";
ctx.textBaseline = "alphabetic";
ctx.font = `italic 23px ${SERIF}`;
ctx.textAlign = "left";
ctx.fillText(v.name, x + 2, y + h + 44);
ctx.textAlign = "right";
ctx.fillText(`${index + 1} / ${N}`, x + w - 2, y + h + 44);
}
type Sim = {
index: number; side: number; yaw: number; yawV: number; lean: number; leanV: number; rock: number; rockV: number;
queue: number; textIn: boolean; textSide: number; kick: number; kickV: number;
px: number; py: number; cx: number; cy: number; panX: number; sideMix: number;
sun: number[]; paused: boolean; nextAuto: number; dirty: boolean; narrow: boolean;
};
function QuoteBody({ v, narrow }: { v: (typeof voices)[number]; narrow: boolean }) {
return (
<figure className="m-0 flex h-full flex-col" 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="m-0 mt-5" style={{ fontFamily: SERIF, fontSize: narrow ? 40 : 72, lineHeight: 0.98, letterSpacing: "-0.035em", fontWeight: 500, textWrap: "balance" } as React.CSSProperties}>
<span aria-hidden="true" className="absolute" style={{ transform: "translateX(-0.46em)" }}>
“
</span>
{v.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" }}>
{v.name}
</span>
<span className="mt-1 block font-medium uppercase" style={{ fontSize: narrow ? 10 : 11.5, letterSpacing: "0.2em" }}>
{v.role}
</span>
</figcaption>
</figure>
);
}
export default function LeaningFrameTestimonials() {
const reduce = useReducedMotion();
const wrapRef = useRef<HTMLDivElement>(null);
const canvasRef = useRef<HTMLCanvasElement>(null);
const plateRef = useRef<HTMLDivElement>(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, side: 0, yaw: 0, yawV: 0, lean: LEAN, leanV: 0, rock: 0, rockV: 0,
queue: 0, textIn: true, textSide: 0, kick: 0, kickV: 0,
px: 0, py: 0, cx: 0, cy: 0, panX: 0, sideMix: 0,
sun: [], paused: false, nextAuto: 0, dirty: true, narrow: false,
});
const step = useCallback((dir: number) => {
const s = sim.current;
s.queue = clamp(s.queue + dir, -2, 2);
s.nextAuto = performance.now() + HOLD_MS * 1.6;
s.dirty = true;
if (mode === "still") {
s.queue = 0;
setShown((i) => mod(i + dir, N));
}
}, [mode]);
// tall, narrow stages put the quote on the wall above the frame instead of beside it
useEffect(() => {
const wrap = wrapRef.current;
if (!wrap) return;
const measure = () => {
const isNarrow = wrap.clientWidth / wrap.clientHeight < 1.12;
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;
const plate = plateRef.current;
if (!wrap || !canvas || !plate) 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, progLens: WebGLProgram, progOut: WebGLProgram;
try {
prog = program(gl, VS, FS);
progLens = program(gl, VS_FULL, FS_LENS);
progOut = program(gl, VS_FULL, FS_OUT);
} catch {
setMode("still");
return;
}
setMode("gl");
// one sRGB layer per speaker, so the light maths happens in linear colour
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_H)) + 1, gl.SRGB8_ALPHA8, TEX_W, TEX_H, N);
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_W;
scratch.height = TEX_H;
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_W, TEX_H, 1, gl.RGBA, gl.UNSIGNED_BYTE, scratch);
gl.generateMipmap(gl.TEXTURE_2D_ARRAY);
s.dirty = true;
};
let alive = true;
voices.forEach((v, i) => {
paintSheet(sctx, v, i, null);
upload(i);
const img = new Image();
img.crossOrigin = "anonymous";
img.onload = () => {
if (!alive) return;
paintSheet(sctx, v, i, img);
upload(i);
};
img.src = v.src;
});
const mesh = sceneMesh();
const vao = gl.createVertexArray();
gl.bindVertexArray(vao);
gl.bindBuffer(gl.ARRAY_BUFFER, gl.createBuffer());
gl.bufferData(gl.ARRAY_BUFFER, mesh, gl.STATIC_DRAW);
[3, 3, 2, 1].reduce((off, size, loc) => {
gl.enableVertexAttribArray(loc);
gl.vertexAttribPointer(loc, size, gl.FLOAT, false, 36, off);
return off + size * 4;
}, 0);
gl.bindVertexArray(null);
const emptyVao = gl.createVertexArray();
const msFbo = gl.createFramebuffer();
const msColor = gl.createRenderbuffer();
const msDepth = gl.createRenderbuffer();
const resFbo = gl.createFramebuffer();
const resTex = gl.createTexture();
const lensFbo = gl.createFramebuffer();
const lensTex = gl.createTexture();
let W = 0, H = 0, cw = 1, ch = 1, scale = Math.min(window.devicePixelRatio || 1, 1.5);
const samples = Math.min(4, gl.getParameter(gl.MAX_SAMPLES));
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.bindRenderbuffer(gl.RENDERBUFFER, msColor);
gl.renderbufferStorageMultisample(gl.RENDERBUFFER, samples, gl.RGBA8, W, H);
gl.bindRenderbuffer(gl.RENDERBUFFER, msDepth);
gl.renderbufferStorageMultisample(gl.RENDERBUFFER, samples, gl.DEPTH_COMPONENT24, W, H);
gl.bindFramebuffer(gl.FRAMEBUFFER, msFbo);
gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, msColor);
gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.RENDERBUFFER, msDepth);
for (const [unit, t, fb] of [[gl.TEXTURE2, resTex, resFbo], [gl.TEXTURE3, lensTex, lensFbo]] as const) {
gl.activeTexture(unit);
gl.bindTexture(gl.TEXTURE_2D, t);
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_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, t, 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" : p === progLens ? "b" : "c") + n;
if (!locs.has(key)) locs.set(key, gl.getUniformLocation(p, n));
return locs.get(key)!;
};
const layers = new Float32Array([0, 1]);
/** The eight numbers that describe a sun: direction, colour times power, leaf shade, aim. Mirrored when the frame changes side. */
const sunFor = (i: number, side: number) => {
const p = suns[i % suns.length];
const m = side ? 1 : -1;
return [m * p.dir[0], p.dir[1], p.dir[2], p.col[0] * p.power, p.col[1] * p.power, p.col[2] * p.power, p.leaf, -m * p.aim[0], p.aim[1]];
};
s.sun = sunFor(0, 0);
const draw = (t: number) => {
// where the frame is: swung about its hinge corner, rocked onto that corner, leaning back toward the wall
const cy = Math.cos(s.yaw), sy = Math.sin(s.yaw), cr = Math.cos(s.rock), sr = Math.sin(s.rock), cl = Math.cos(s.lean), sl = Math.sin(s.lean);
const tilt = (v: number[]) => [v[0], v[1] * cl + v[2] * sl, -v[1] * sl + v[2] * cl];
const u0 = [cy, 0, sy], n0 = [-sy, 0, cy];
const Uv = tilt([u0[0] * cr, sr, u0[2] * cr]);
const Vv = tilt([-u0[0] * sr, cr, -u0[2] * sr]);
const Nv = tilt(n0);
let low = 0;
for (const x of [0, FW]) for (const z of [-FD, FD]) low = Math.min(low, Uv[1] * x + Nv[1] * z);
const C = [0, -low + 0.001, Z0];
const aspect = cw / ch;
const mix = s.sideMix; // 0 frame on the right, 1 on the left
const fc = 0.5 - mix;
const needW = s.narrow ? 0.68 : 1.7, needH = s.narrow ? 1.5 : 0.93;
const TAN = Math.max(needW / aspect, needH) / CAM_Z;
const lookY = s.narrow ? 1.16 : 0.71;
const centre = s.narrow ? fc : (mix - 0.5) * 0.5;
const drift = reduce ? 0 : 1;
const cam = [centre + s.cx * 0.34 + drift * 0.05 * Math.sin(t * 0.27), 0.98 - s.cy * 0.1 + drift * 0.015 * Math.sin(t * 0.21 + 1) + s.kick, CAM_Z];
let fw = [centre * 0.9 - cam[0], lookY - 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 L = s.sun.slice(0, 3);
const ll = Math.hypot(L[0], L[1], L[2]);
for (let i = 0; i < 3; i++) L[i] /= ll;
let Lu = [L[2], 0, -L[0]];
const lul = Math.hypot(Lu[0], Lu[2]);
Lu = Lu.map((v) => v / lul);
const Lv = [L[1] * Lu[2] - L[2] * Lu[1], L[2] * Lu[0] - L[0] * Lu[2], L[0] * Lu[1] - L[1] * Lu[0]];
gl.bindFramebuffer(gl.FRAMEBUFFER, msFbo);
gl.viewport(0, 0, W, H);
gl.enable(gl.DEPTH_TEST);
gl.depthMask(true);
gl.clearColor(0.9, 0.7, 0.5, 0.5);
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
gl.useProgram(prog);
gl.uniform3fv(U(prog, "uC"), C);
gl.uniform3fv(U(prog, "uU"), Uv);
gl.uniform3fv(U(prog, "uV"), Vv);
gl.uniform3fv(U(prog, "uN"), Nv);
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.uniform3fv(U(prog, "uL"), L);
gl.uniform3fv(U(prog, "uLu"), Lu);
gl.uniform3fv(U(prog, "uLv"), Lv);
gl.uniform3f(U(prog, "uLT"), s.sun[7], s.sun[8], 0);
gl.uniform3f(U(prog, "uSun"), s.sun[3], s.sun[4], s.sun[5]);
gl.uniform1f(U(prog, "uLeaf"), s.sun[6]);
gl.uniform1f(U(prog, "uTime"), reduce ? 0 : t);
gl.uniform1f(U(prog, "uFocus"), CAM_Z - 0.1);
gl.uniform1f(U(prog, "uAperture"), 1.5);
gl.uniform1fv(U(prog, "uLayer[0]"), layers);
gl.uniform1i(U(prog, "uTex"), 0);
gl.bindVertexArray(vao);
gl.drawArrays(gl.TRIANGLES, 0, mesh.length / 9);
gl.bindFramebuffer(gl.READ_FRAMEBUFFER, msFbo);
gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, resFbo);
gl.blitFramebuffer(0, 0, W, H, 0, 0, W, H, gl.COLOR_BUFFER_BIT, gl.NEAREST);
gl.bindFramebuffer(gl.FRAMEBUFFER, lensFbo);
gl.disable(gl.DEPTH_TEST);
gl.useProgram(progLens);
gl.uniform1i(U(progLens, "uScene"), 2);
gl.uniform2f(U(progLens, "uPx"), 1 / W, 1 / H);
gl.uniform1f(U(progLens, "uMaxR"), H * 0.011);
gl.bindVertexArray(emptyVao);
gl.drawArrays(gl.TRIANGLES, 0, 3);
gl.bindFramebuffer(gl.FRAMEBUFFER, null);
gl.useProgram(progOut);
gl.uniform1i(U(progOut, "uScene"), 3);
gl.uniform2f(U(progOut, "uPx"), 1 / W, 1 / H);
gl.uniform1f(U(progOut, "uTime"), reduce ? 0 : t);
gl.drawArrays(gl.TRIANGLES, 0, 3);
// lay the quote on the wall: the same camera, written as a CSS matrix
const dw = s.narrow ? 380 : 600;
const ww = s.narrow ? 1.16 : 1.36;
const tfc = 0.5 - s.textSide;
const ox = s.narrow ? tfc - ww / 2 : s.textSide ? 0.22 : -1.55;
const oy = s.narrow ? 2.43 : 1.36;
const k = ww / dw;
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 * (xv / (TAN * aspect) + zv), ch * 0.5 * (zv - yv / TAN), zv];
};
const h0 = proj([ox, oy, 0]), hx = proj([ox + k, oy, 0]), hy = proj([ox, oy - k, 0]);
const m = [hx[0] - h0[0], hx[1] - h0[1], hx[2] - h0[2], hy[0] - h0[0], hy[1] - h0[1], hy[2] - h0[2], h0[0], h0[1], h0[2]].map((v) => v / h0[2]);
plate.style.transform = `matrix3d(${m[0]},${m[1]},0,${m[2]},${m[3]},${m[4]},0,${m[5]},0,0,1,0,${m[6]},${m[7]},0,${m[8]})`;
};
/** One small step of the swing, the fall back against the wall, and the rock on the hinge corner. */
const physics = (dt: number) => {
const goal = s.side ? Math.PI : 0;
let away = Math.abs(goal - s.yaw);
if (s.queue !== 0 && away < 0.9 && Math.abs(s.yawV) < 2.4) {
const dir = Math.sign(s.queue);
s.queue -= dir;
s.index = mod(s.index + dir, N);
s.side = 1 - s.side;
layers[s.side] = s.index; // the hidden side gets the next print
s.textIn = false;
setInk(false);
return;
}
s.yawV += (SWING * (goal - s.yaw) - SWING_DRAG * s.yawV) * dt;
s.yaw += s.yawV * dt;
if ((goal === 0 && s.yaw < 0) || (goal > 0 && s.yaw > Math.PI)) {
s.yaw = goal;
s.yawV *= -0.18;
}
away = Math.abs(goal - s.yaw);
if (!s.textIn && away < 1.15) {
s.textIn = true;
s.textSide = s.side;
setShown(s.index);
setInk(true);
}
// upright while it travels; near home it topples back, slowly at first, and knocks against the wall
const fall = 1 - smooth(0.1, 0.75, away);
s.leanV += (fall * 34 * Math.sin(s.lean + 0.05) + (1 - fall) * (-95 * s.lean - 15 * s.leanV)) * dt;
s.lean += s.leanV * dt;
if (s.lean > LEAN) {
s.lean = LEAN;
if (s.leanV > 0.22) {
s.kickV -= s.leanV * 0.012;
s.leanV *= -BOUNCE;
} else s.leanV = 0;
}
const lift = 0.05 * smooth(0.25, 0.9, away);
s.rockV += (170 * (lift - s.rock) - 11 * s.rockV) * dt;
s.rock += s.rockV * dt;
if (s.rock < 0) {
s.rock = 0;
s.rockV *= -0.3;
}
s.kickV += (-420 * s.kick - 26 * s.kickV) * dt;
s.kick += s.kickV * dt;
};
let raf = 0, visible = true, last = performance.now(), slow = 0, frames = 0;
s.nextAuto = last + HOLD_MS * 0.75;
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.queue === 0) {
s.queue = 1;
s.nextAuto = now + HOLD_MS;
}
if (reduce) {
if (s.queue !== 0) {
s.index = mod(s.index + Math.sign(s.queue), N);
s.queue = 0;
s.side = 1 - s.side;
layers[s.side] = s.index;
s.textSide = s.side;
setShown(s.index);
s.dirty = true;
}
s.yaw = s.side ? Math.PI : 0;
s.lean = LEAN;
s.sideMix = s.side;
s.sun = sunFor(s.index, s.side);
} else {
const sub = Math.max(1, Math.ceil(dt / 0.004));
for (let i = 0; i < sub; i++) physics(dt / sub);
s.cx += (s.px - s.cx) * Math.min(1, dt * 3);
s.cy += (s.py - s.cy) * Math.min(1, dt * 3);
s.sideMix += (s.yaw / Math.PI - s.sideMix) * Math.min(1, dt * 3.4);
const want = sunFor(s.index, s.side);
for (let i = 0; i < want.length; i++) s.sun[i] += (want[i] - s.sun[i]) * Math.min(1, dt * 2.6);
}
if (!reduce || s.dirty) {
draw(now / 1000);
s.dirty = false;
// measure, do not guess: if the machine cannot hold the frame rate, render fewer pixels
if (!reduce && ++frames > 20) {
slow = slow * 0.92 + (real > 24 ? 1 : 0) * 0.08;
if (slow > 0.6 && scale > 0.5) {
scale *= 0.85;
slow = 0;
frames = 0;
resize();
}
}
}
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) => {
if (e.key === "ArrowRight" || e.key === "ArrowDown") {
e.preventDefault();
step(1);
} else if (e.key === "ArrowLeft" || e.key === "ArrowUp") {
e.preventDefault();
step(-1);
}
};
const pause = (v: boolean) => () => {
sim.current.paused = v;
if (!v) sim.current.nextAuto = performance.now() + HOLD_MS;
};
const v = voices[shown];
const btn = "grid h-11 w-11 place-items-center rounded-full border border-[#3d0f0b]/25 bg-[#fff3e2]/70 text-[#3d0f0b] backdrop-blur-sm transition hover:bg-[#fff3e2] focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[#3d0f0b]";
const label = "text-[10px] font-semibold uppercase tracking-[0.26em] sm:text-[11px]";
return (
<section className="relative overflow-hidden bg-[#e9a568]" onFocus={pause(true)} onBlur={pause(false)} onPointerEnter={pause(true)} onPointerLeave={pause(false)}>
<style>{`@keyframes leaning-frame-testimonials-ink { from { opacity: 0; transform: translateY(14px); filter: blur(5px); } to { opacity: 1; transform: none; filter: blur(0); } } .leaning-frame-testimonials-ink { animation: leaning-frame-testimonials-ink 620ms cubic-bezier(0.2, 0.7, 0.2, 1) both; } @keyframes leaning-frame-testimonials-sun { from { transform: translateX(-3%); } to { transform: translateX(3%); } } .leaning-frame-testimonials-sun { animation: leaning-frame-testimonials-sun 9s ease-in-out infinite alternate; } @media (prefers-reduced-motion: reduce) { .leaning-frame-testimonials-ink, .leaning-frame-testimonials-sun { animation: none; } }`}</style>
<div
ref={wrapRef}
role="group"
aria-roledescription="carousel"
aria-label="Client testimonials. A framed portrait leans on a sunlit wall beside each quote. Use the left and right arrow keys to turn the frame to the next speaker."
tabIndex={0}
onKeyDown={onKey}
className="relative h-[720px] w-full select-none outline-none focus-visible:ring-2 focus-visible:ring-inset focus-visible:ring-[#3d0f0b]/70 sm:h-[780px]"
>
<canvas ref={canvasRef} aria-hidden="true" className={`absolute inset-0 h-full w-full ${mode === "still" ? "hidden" : ""}`} />
{/* the quote, painted on the wall: real text, multiplied into the picture so sun and shade fall across it */}
<div
ref={plateRef}
aria-live="polite"
className={`absolute left-0 top-0 origin-top-left ${mode === "gl" ? "" : "hidden"}`}
style={{ width: narrow ? 380 : 600, mixBlendMode: "multiply", willChange: "transform" }}
>
<div className="transition-opacity duration-200 motion-reduce:transition-none" style={{ opacity: ink ? 1 : 0 }}>
<div key={shown} className="leaning-frame-testimonials-ink">
<QuoteBody v={v} narrow={narrow} />
<span className="sr-only">Portrait: {v.alt}</span>
</div>
</div>
</div>
{/* the same room built from plain boxes and one image, for browsers without WebGL 2 */}
{mode === "still" && (
<div className="absolute inset-0" style={{ background: "linear-gradient(105deg, #f4b97c 0%, #f1b071 38%, #d99358 100%)" }}>
<div aria-hidden="true" className="leaning-frame-testimonials-sun absolute inset-y-0 -left-[10%] w-[120%]" style={{ background: "linear-gradient(118deg, transparent 12%, rgba(255,236,200,0.5) 12.4%, rgba(255,236,200,0.5) 58%, transparent 58.6%)" }} />
<div aria-hidden="true" className="absolute inset-x-0 bottom-0 h-[13%]" style={{ background: "linear-gradient(180deg, #7a2a17 0%, #a3472a 100%)", boxShadow: "inset 0 10px 14px -8px rgba(40,10,0,0.6)" }} />
<div className="absolute inset-x-0 bottom-[10%] top-[11%] mx-auto flex max-w-6xl flex-col items-center gap-6 px-6 sm:flex-row sm:items-end sm:gap-14 sm:px-12">
<div aria-live="polite" className="order-1 w-full max-w-[600px] sm:w-[54%] sm:pb-24">
<QuoteBody v={v} narrow={narrow} />
</div>
<div className="order-2 h-[52%] shrink-0 sm:h-full" style={{ aspectRatio: "100 / 132", padding: "1.6%", background: "linear-gradient(135deg, #5a2f18, #2e1509 60%, #4a2512)", boxShadow: "22px 18px 30px -6px rgba(70,25,5,0.45), 2px 0 0 rgba(255,255,255,0.08) inset" }}>
<div className="h-full w-full" style={{ background: "#efe9dc", padding: "10.5% 11% 13.5%", boxShadow: "inset 0 0 0 1px rgba(0,0,0,0.25), inset 3px 4px 6px rgba(0,0,0,0.25)" }}>
<img src={v.src} alt={v.alt} width={900} height={1350} className="h-full w-full object-cover" style={{ background: v.tone, objectPosition: `${v.focus[0] * 100}% ${v.focus[1] * 100}%`, boxShadow: "0 0 0 2px #fbf8f1, inset 0 0 0 1px rgba(0,0,0,0.3)" }} />
</div>
</div>
</div>
</div>
)}
<div className="pointer-events-none absolute inset-x-0 top-0 flex items-baseline justify-between p-5 sm:p-9" style={{ color: INK }}>
<p className="text-[26px] italic leading-none sm:text-[30px]" style={{ fontFamily: SERIF, letterSpacing: "-0.03em" }}>
{MASTHEAD}
</p>
<p className={`${label} opacity-80`} style={{ fontFamily: GROTESK }}>
<span className="hidden sm:inline">Arrow keys turn the frame</span>
</p>
</div>
<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">
<button type="button" onClick={() => step(-1)} aria-label="Previous testimonial" className={btn}>
<svg aria-hidden="true" width="18" height="18" viewBox="0 0 20 20" fill="none" stroke="currentColor" strokeWidth="1.6" strokeLinecap="round" strokeLinejoin="round">
<path d="M12 4l-6 6 6 6" />
</svg>
</button>
<button type="button" onClick={() => step(1)} aria-label="Next testimonial" className={btn}>
<svg aria-hidden="true" width="18" height="18" viewBox="0 0 20 20" fill="none" stroke="currentColor" strokeWidth="1.6" strokeLinecap="round" strokeLinejoin="round">
<path d="M8 4l6 6-6 6" />
</svg>
</button>
</div>
</div>
</div>
</section>
);
}
Install with one command: npx shadcn@latest add https://we.inc/r/framed-portrait-testimonials-in-webgl-with-a-leaning-two-sided-frame-that-swings-on-its-corner-and-claps-back-onto-a-sunlit-wall.json
No. It is normal HTML text in a positioned block. Every frame, the component projects the block's corner and its two edges through the same camera the shader uses and writes the result as a CSS `matrix3d`, so the text sits on the wall in perspective and moves with the camera. `mix-blend-mode: multiply` lets the sunlight and the shadows under it show through the ink.
The frame is glazed on both sides. While one side faces the room, the hidden side is given the next speaker's sheet from an array texture. The frame then pivots half a turn about its bottom corner, so the hidden side arrives facing the camera on the other half of the wall, and the quote moves to the half the frame has left.
Three small simulations run together in `physics`. The swing is a damped spring that is stopped dead at the wall. The lean starts almost balanced, so it falls slowly and then quickly, and each time the top edge reaches the wall it rebounds with a fraction of its speed. The free bottom corner is lifted during the turn and bounces once when it lands.
The frame's shadow is found by walking from each wall or floor point toward the sun through the distance field of a box, which gives an edge that is tight where the frame touches the wall and soft where it stands away. Each floor pixel sends five rays off a slightly rough mirror and tests them against the frame, the wall and the room behind the camera.
The canvas is capped at about 1.5 million pixels and a device pixel ratio of 1.5. The loop times its own frames and lowers the render scale in steps if too many run long, and it stops drawing when the section is scrolled out of view.
Yes. Add entries to `voices`; the texture array grows to match. The `suns` list is reused in order when there are more speakers than suns, so add a sun for each new person if you want every one to have a different light.
Related: Fashion Print Carousel in WebGL with Standing Prints That Rock on Their Corners over a Mirror Floor, Cork Board Testimonials with Pinned Portrait Postcards That Swing, Unpin and Turn over to a Handwritten Note, 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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