A publish control drawn as a studio photograph that happens to be running. On the left of a dark polished floor stands a black anodised plinth with a brushed aluminium collar, held down by four socket screws, and in the collar sits one square key with a lathe-faced dish in its top and an arrow cut through it. Blue light leaks from the gap round the key and from under the plinth. A thin channel let into the floor runs from the plinth to a second, lower base that holds a small lightbox with a model of a homepage in it. While the page is a draft the lightbox is dark and shows a dashed pencil plan of blocks. Press the key and it drops onto its stop, a pulse runs down the channel, a blue line climbs the film replacing the plan with the printed page, and the lamps behind it catch, drop out and hold. The key stays latched part of the way down for as long as the page is live. The word beside the scene changes between Draft and Live, and a pill button repeats the action for keyboards. On a phone the key moves to the front, the lightbox stands behind it and the word sits at the top.
import { useEffect, useRef, useState } from "react";
import { AnimatePresence, motion, useReducedMotion } from "framer-motion";
/** The page that the model shows once it is live. Change the words here. */
const SITE = {
brand: "Slow Kiln",
nav: ["Shop", "Studio", "Visit"],
headline: ["Thrown by hand,", "fired slow."],
sub: "Small batch stoneware from a harbour studio, glazed in quiet colours and fired once a week.",
cta: "Shop the batch",
foot: "Whitby, Yorkshire",
};
const PHOTO = {
src: "https://images.pexels.com/photos/8479191/pexels-photo-8479191.jpeg?auto=compress&cs=tinysrgb&w=900",
alt: "Pale crackle glazed ceramic vase lit from one side against a black background",
tone: "#17191c",
};
/** The two states, as the words shown beside the key. */
const STATES = {
draft: { word: "Draft", line: "Only you can see this page.", action: "Publish" },
live: { word: "Live", line: "Anyone with the address can visit.", action: "Back to draft" },
};
const BLUE = "#4F98FB";
const INK = "#0B0D12";
const PAPER = "#F6F4EF";
const FONT = '"Inter Tight", "Inter", ui-sans-serif, system-ui, sans-serif';
/** Seconds the self-playing demo holds the live page, and the draft, before pressing the key again. */
const HOLD_LIVE = 6.5;
const HOLD_DRAFT = 2.3;
/** How far down the key stays once the page is live, as a share of its full travel. */
const LATCH = 0.46;
/** Lowest and highest render scale (canvas pixels per CSS pixel). The loop steps down when frames run slow. */
const MIN_SCALE = 0.6001;
const MAX_SCALE = 1.5001;
/* ---------- canvas drawings, used as textures ---------- */
type Ctx = CanvasRenderingContext2D;
const setFont = (c: Ctx, weight: number, size: number, track = 0) => {
c.font = `${weight} ${size}px ${FONT}`;
(c as unknown as { letterSpacing: string }).letterSpacing = `${(track * size).toFixed(2)}px`;
};
function wrap(c: Ctx, text: string, maxW: number): string[] {
const out: string[] = [];
let line = "";
for (const word of text.split(" ")) {
const next = line ? line + " " + word : word;
if (line && c.measureText(next).width > maxW) {
out.push(line);
line = word;
} else line = next;
}
out.push(line);
return out;
}
function pill(c: Ctx, x: number, y: number, w: number, h: number, r: number) {
c.beginPath();
c.moveTo(x + r, y);
c.arcTo(x + w, y, x + w, y + h, r);
c.arcTo(x + w, y + h, x, y + h, r);
c.arcTo(x, y + h, x, y, r);
c.arcTo(x, y, x + w, y, r);
c.closePath();
}
/** The published page, as printed on the film inside the lightbox. 2048 x 1536. */
function drawLive(c: Ctx, img: HTMLImageElement | null) {
c.fillStyle = PAPER;
c.fillRect(0, 0, 2048, 1536);
c.textBaseline = "alphabetic";
// menu bar
c.fillStyle = INK;
pill(c, 84, 76, 1880, 132, 66);
c.fill();
c.fillStyle = "#fff";
setFont(c, 800, 58, -0.02);
c.fillText(SITE.brand, 148, 163);
setFont(c, 500, 44, 0);
let x = 1900;
for (const item of [...SITE.nav].reverse()) {
x -= c.measureText(item).width;
c.fillText(item, x, 158);
x -= 70;
}
// photograph
const px = 1296, py = 290, pw = 668, ph = 1010;
c.save();
pill(c, px, py, pw, ph, 40);
c.clip();
c.fillStyle = PHOTO.tone;
c.fillRect(px, py, pw, ph);
if (img && img.naturalWidth) {
const s = Math.max(pw / img.naturalWidth, ph / img.naturalHeight);
const w = img.naturalWidth * s, h = img.naturalHeight * s;
try {
c.filter = "grayscale(1) contrast(1.08) brightness(1.12)";
} catch {
/* colour is fine too */
}
c.drawImage(img, px + (pw - w) / 2, py + (ph - h) / 2, w, h);
c.filter = "none";
} else {
const g = c.createRadialGradient(px + 300, py + 600, 20, px + 300, py + 600, 520);
g.addColorStop(0, "#c9ccd0");
g.addColorStop(0.45, "#5d6066");
g.addColorStop(1, PHOTO.tone);
c.fillStyle = g;
c.fillRect(px, py, pw, ph);
}
c.restore();
// headline
c.fillStyle = INK;
let size = 176;
for (; size > 80; size -= 4) {
setFont(c, 800, size, -0.05);
if (Math.max(...SITE.headline.map((l) => c.measureText(l).width)) < 1130) break;
}
SITE.headline.forEach((l, i) => c.fillText(l, 100, 470 + size * 0.36 + i * size * 0.95));
// small print
c.fillStyle = "#3d4149";
setFont(c, 500, 50, -0.012);
wrap(c, SITE.sub, 980).slice(0, 3).forEach((l, i) => c.fillText(l, 106, 880 + i * 68));
// button
c.fillStyle = BLUE;
pill(c, 104, 1126, 560, 150, 75);
c.fill();
c.fillStyle = "#fff";
setFont(c, 700, 56, -0.015);
const lw = c.measureText(SITE.cta).width;
const sx = 104 + (560 - lw - 74) / 2;
c.fillText(SITE.cta, sx, 1220);
c.lineWidth = 7;
c.lineCap = "round";
c.lineJoin = "round";
c.strokeStyle = "#fff";
const ax = sx + lw + 28;
c.beginPath();
c.moveTo(ax, 1201);
c.lineTo(ax + 44, 1201);
c.moveTo(ax + 26, 1183);
c.lineTo(ax + 44, 1201);
c.lineTo(ax + 26, 1219);
c.stroke();
// foot
c.fillStyle = "rgba(11,13,18,0.16)";
c.fillRect(104, 1404, 1860, 3);
c.fillStyle = "#7d8088";
setFont(c, 600, 26, 0.14);
c.fillText(SITE.foot.toUpperCase(), 104, 1462);
const right = SITE.brand.toUpperCase();
c.fillText(right, 1964 - c.measureText(right).width, 1462);
}
/** The same page before it is published: a pencil plan of blocks on dark film. 1024 x 768. */
function drawDraft(c: Ctx) {
c.fillStyle = "#23262c";
c.fillRect(0, 0, 1024, 768);
const line = "#7c818b";
const fill = "#343841";
c.strokeStyle = line;
c.lineWidth = 2.5;
c.setLineDash([10, 9]);
c.fillStyle = fill;
pill(c, 42, 38, 940, 66, 33);
c.fill();
c.stroke();
pill(c, 648, 145, 334, 505, 20);
c.fill();
c.stroke();
c.beginPath();
c.moveTo(660, 157);
c.lineTo(970, 638);
c.moveTo(970, 157);
c.lineTo(660, 638);
c.stroke();
pill(c, 52, 563, 280, 75, 37.5);
c.fill();
c.stroke();
c.setLineDash([]);
c.fillStyle = "#5b606a";
pill(c, 52, 222, 520, 62, 10);
c.fill();
pill(c, 52, 304, 400, 62, 10);
c.fill();
c.fillStyle = "#454a54";
for (let i = 0; i < 3; i++) {
pill(c, 53, 432 + i * 34, [470, 490, 300][i], 14, 7);
c.fill();
}
c.fillStyle = "#4a4f59";
pill(c, 72, 62, 110, 18, 9);
c.fill();
for (let i = 0; i < 3; i++) {
pill(c, 720 + i * 82, 64, 58, 14, 7);
c.fill();
}
c.fillStyle = line;
c.fillRect(52, 702, 930, 1.5);
c.textBaseline = "alphabetic";
setFont(c, 600, 15, 0.2);
c.fillText("DRAFT", 52, 734);
const t = "NOT PUBLISHED";
c.fillText(t, 982 - c.measureText(t).width, 734);
}
/** Plan view of the key from above, 1.3 units across: red is the white paint in the engraving, green is the arrow cut through the cap. */
function drawMarks(c: Ctx) {
const S = 2048, u = S / 1.3;
c.fillStyle = "#000";
c.fillRect(0, 0, S, S);
c.translate(S / 2, S / 2);
c.textBaseline = "middle";
c.fillStyle = "#f00";
setFont(c, 700, 0.052 * u, 0.2);
const z = 0.533 * u;
const d = "DRAFT";
c.fillText(d, -0.125 * u - c.measureText(d).width, z);
c.fillText("LIVE", 0.135 * u, z);
setFont(c, 600, 0.036 * u, 0.34);
const p = "PUBLISH";
c.fillText(p, -c.measureText(p).width / 2 + 0.006 * u, -z);
// arrow
c.strokeStyle = "#0f0";
c.lineWidth = 0.05 * u;
c.lineCap = "round";
c.lineJoin = "round";
c.beginPath();
c.moveTo(0, 0.15 * u);
c.lineTo(0, -0.15 * u);
c.moveTo(-0.125 * u, -0.03 * u);
c.lineTo(0, -0.155 * u);
c.lineTo(0.125 * u, -0.03 * u);
c.stroke();
}
/* ---------- shaders ---------- */
const VERT = `#version 300 es
in vec2 a; out vec2 vUv;
void main(){ vUv = a * 0.5 + 0.5; gl_Position = vec4(a, 0.0, 1.0); }`;
const SCENE = `#version 300 es
precision highp float;
in vec2 vUv; out vec4 o;
uniform vec2 uRes;
uniform vec3 uCam, uTarget;
uniform float uFov, uTime;
uniform vec4 uPos; // key x, z and model x, z on the floor
uniform float uYaw; // turn of the model
uniform float uPress; // travel of the key, 0 up to 1 on its stop
uniform float uGlow; // blue light under the key
uniform float uInk; // how far the printed page has replaced the plan, bottom to top
uniform float uLit; // lamps inside the lightbox
uniform vec4 uSeg; // the light channel in the floor: from x, z to x, z
uniform vec4 uChan; // pulse position, pulse strength, how far the channel is filled, light under the model
uniform vec4 uPip; // the two indicator lamps on the collar, then radius and strength of the ring on the floor
uniform sampler2D uLive, uDraft, uMarks;
const vec3 BLUE = vec3(0.078, 0.314, 0.965);
const vec3 ALU = vec3(0.91, 0.918, 0.925);
const vec3 KEY = vec3(-0.21, 0.86, 0.465);
const vec3 KEYC = vec3(1.0, 0.975, 0.94);
const float PT = 0.38, CT = 0.50, MS = 0.84;
float gCy, gSy, gCl, gSl, gPix, gDist;
vec3 gPageC, gPageN, gKeyC;
float h21(vec2 p){ vec3 q = fract(vec3(p.xyx) * 0.1031); q += dot(q, q.yzx + 33.33); return fract((q.x + q.y) * q.z); }
float n2(vec2 x){ vec2 i = floor(x), f = fract(x); f = f * f * (3.0 - 2.0 * f);
return mix(mix(h21(i), h21(i + vec2(1.0, 0.0)), f.x), mix(h21(i + vec2(0.0, 1.0)), h21(i + vec2(1.0, 1.0)), f.x), f.y); }
float n1(float x){ float i = floor(x), f = fract(x); f = f * f * (3.0 - 2.0 * f); return mix(h21(vec2(i, 3.7)), h21(vec2(i + 1.0, 3.7)), f); }
float rb2(vec2 p, vec2 h, float r){ vec2 d = abs(p) - h + r; return length(max(d, 0.0)) + min(max(d.x, d.y), 0.0) - r; }
float ext(float d2, float y, float h, float bev){ vec2 w = vec2(d2, abs(y) - h) + bev; return min(max(w.x, w.y), 0.0) + length(max(w, 0.0)) - bev; }
vec3 toKey(vec3 p){ return p - vec3(uPos.x, 0.0, uPos.y); }
vec3 toBase(vec3 p){ p -= vec3(uPos.z, 0.0, uPos.w); p.xz = vec2(gCy * p.x - gSy * p.z, gSy * p.x + gCy * p.z); return p / MS; }
vec3 toBox(vec3 q){ q.y -= 0.11; q.yz = vec2(gCl * q.y - gSl * q.z, gSl * q.y + gCl * q.z); return q; }
vec3 dirBox(vec3 d){ d.xz = vec2(gCy * d.x - gSy * d.z, gSy * d.x + gCy * d.z); d.yz = vec2(gCl * d.y - gSl * d.z, gSl * d.y + gCl * d.z); return d; }
vec3 boxToWorld(vec3 q){
q.yz = vec2(gCl * q.y + gSl * q.z, -gSl * q.y + gCl * q.z); q.y += 0.11;
q.xz = vec2(gCy * q.x + gSy * q.z, -gSy * q.x + gCy * q.z);
return q * MS + vec3(uPos.z, 0.0, uPos.w);
}
float capTop(){ return CT + 0.19 - uPress * 0.15; }
float sdPlinth(vec3 p){
float body = ext(rb2(p.xz, vec2(0.8), 0.15), p.y - 0.215, 0.165, 0.03);
float foot = ext(rb2(p.xz, vec2(0.72), 0.09), p.y - 0.03, 0.03, 0.0);
return min(body, foot);
}
float sdCollar(vec3 p){
float d2 = rb2(p.xz, vec2(0.62), 0.17);
float d = max(d2, abs(p.y - (PT + CT) * 0.5) - (CT - PT) * 0.5);
d = max(d, (d2 + p.y - CT + 0.03) * 0.7071);
float w2 = rb2(p.xz, vec2(0.47), 0.13) - clamp(p.y - (CT - 0.02), 0.0, 0.03);
return max(d, -max(w2, PT + 0.03 - p.y));
}
float sdCap(vec3 p){
float top = capTop();
float d = ext(rb2(p.xz, vec2(0.42), 0.11), p.y - (top - 0.22), 0.22, 0.032);
return max(d, 2.3 - length(p - vec3(0.0, top + 2.3 - 0.03, 0.0)));
}
float sdBase(vec3 q){
float body = ext(rb2(q.xz - vec2(0.0, -0.04), vec2(1.2, 0.34), 0.07), q.y - 0.09, 0.05, 0.026);
float foot = ext(rb2(q.xz - vec2(0.0, -0.04), vec2(1.04, 0.18), 0.04), q.y - 0.02, 0.02, 0.0);
return min(body, foot);
}
float sdBox(vec3 r){
vec2 c = r.xy - vec2(0.0, 0.82);
return ext(rb2(c, vec2(1.07, 0.82), 0.075), r.z, 0.085, 0.028);
}
vec2 map(vec3 p){
vec2 r = vec2(1e5, 0.0);
vec3 k = toKey(p);
float bk = length(k - vec3(0.0, 0.3, 0.0)) - 1.3;
if (bk < 0.25){
r = vec2(sdPlinth(k), 1.0);
float d = sdCollar(k); if (d < r.x) r = vec2(d, 2.0);
d = sdCap(k); if (d < r.x) r = vec2(d, 3.0);
} else r.x = bk;
vec3 q = toBase(p);
float bp = (length(q - vec3(0.0, 0.85, -0.12)) - 1.6) * MS;
if (bp < 0.25){
float d = sdBase(q) * MS; if (d < r.x) r = vec2(d, 4.0);
d = sdBox(toBox(q)) * MS; if (d < r.x) r = vec2(d, 5.0);
} else if (bp < r.x) r = vec2(bp, 0.0);
return r;
}
vec3 normal(vec3 p){
vec2 e = vec2(1.0, -1.0) * 0.0011;
return normalize(e.xyy * map(p + e.xyy).x + e.yyx * map(p + e.yyx).x + e.yxy * map(p + e.yxy).x + e.xxx * map(p + e.xxx).x);
}
vec2 march(vec3 ro, vec3 rd, int steps, float far){
float t = 0.0; vec2 h = vec2(0.0);
for (int i = 0; i < 120; i++){
if (i >= steps) break;
h = map(ro + rd * t);
if (h.x < 0.0005 * (1.0 + t * 0.3) || t > far) break;
t += h.x * 0.9;
}
return vec2(t, (t > far || h.x > 0.02) ? 0.0 : h.y);
}
float shadow(vec3 ro, vec3 rd){
float res = 1.0, t = 0.02;
for (int i = 0; i < 26; i++){
vec2 m = map(ro + rd * t); float h = m.x;
if (m.y > 0.5) res = min(res, 5.5 * h / t);
t += clamp(h, 0.014, 0.3);
if (res < 0.004 || t > 5.0) break;
}
res = clamp(res, 0.0, 1.0);
return res * res * (3.0 - 2.0 * res);
}
float occ(vec3 p, vec3 n){
float o = 0.0, s = 1.0;
for (int i = 0; i < 5; i++){
float h = 0.012 + 0.1 * float(i) / 4.0;
o += (h - map(p + n * h).x) * s;
s *= 0.8;
}
return clamp(1.0 - 3.4 * o, 0.0, 1.0);
}
// The studio: softboxes as rectangles, with edges that soften as the surface that mirrors them gets rougher.
float gGrade;
float rectL(vec3 ro, vec3 rd, vec3 c, vec3 n, vec2 hs, float soft){
float dn = dot(rd, n); if (dn > -1e-4) return 0.0;
float t = dot(c - ro, n) / dn; if (t < 0.0) return 0.0;
vec3 q = ro + rd * t - c; float s = soft * t + 0.02;
vec3 u = normalize(cross(vec3(0.0, 1.0, 0.0), n)), v = cross(n, u);
vec2 d = abs(vec2(dot(q, u), dot(q, v))) - hs;
float cloth = 1.0 - 0.45 * clamp(length(vec2(dot(q, u), dot(q, v)) / hs), 0.0, 1.4);
gGrade = smoothstep(-hs.y - s, hs.y, dot(q, v));
return smoothstep(s, -s, d.x) * smoothstep(s, -s, d.y) * cloth;
}
vec3 env(vec3 ro, vec3 rd, float rough){
float soft = 0.03 + rough * 0.8;
vec3 c = mix(vec3(0.008, 0.009, 0.012), vec3(0.03, 0.033, 0.042), smoothstep(-0.1, 0.9, rd.y));
c += vec3(1.0, 0.975, 0.94) * 6.0 * rectL(ro, rd, vec3(-1.8, 7.8, 4.2), normalize(vec3(2.0, -7.4, -4.2)), vec2(3.2, 1.9), soft);
c += vec3(0.9, 0.94, 1.0) * 4.6 * rectL(ro, rd, vec3(8.0, 3.2, -2.6), normalize(vec3(-8.0, -2.6, 2.6)), vec2(0.8, 2.8), soft);
c += vec3(0.86, 0.92, 1.0) * 1.6 * rectL(ro, rd, vec3(-8.5, 2.4, -0.5), normalize(vec3(8.5, -1.8, 0.5)), vec2(1.3, 2.2), soft);
// the scrim behind the set is graded: bright along its top edge, nearly out at the bottom
float back = rectL(ro, rd, vec3(0.6, 5.8, -6.9), normalize(vec3(-0.3, -5.2, 6.9)), vec2(4.6, 1.9), soft);
c += vec3(0.92, 0.96, 1.0) * back * (0.14 + 2.0 * gGrade * gGrade);
c += vec3(0.3, 0.315, 0.345) * smoothstep(0.08, 1.0, rd.y) * (0.25 + 0.75 * smoothstep(0.7, -0.8, rd.z));
return c;
}
vec3 envF(vec3 ro, vec3 rd, float rough){
if (rd.y >= 0.0) return env(ro, rd, rough);
float t = -ro.y / rd.y;
float f = 0.06 + 0.94 * pow(1.0 - clamp(-rd.y, 0.0, 1.0), 5.0);
return vec3(0.006, 0.0065, 0.008) + f * env(ro + rd * t, vec3(rd.x, -rd.y, rd.z), rough + 0.04);
}
vec3 fres(vec3 f0, float c){ return f0 + (1.0 - f0) * pow(1.0 - clamp(c, 0.0, 1.0), 5.0); }
vec3 aniso(vec3 p, vec3 rd, vec3 n, vec3 b, float spread, float rough){
vec3 c = vec3(0.0); float w = 0.0;
for (int i = -3; i <= 3; i++){ float f = float(i) / 3.0; float g = exp(-2.4 * f * f); c += g * envF(p, reflect(rd, normalize(n + b * f * spread)), rough); w += g; }
return c / w;
}
// White light thrown by the lit page onto whatever faces it.
float pageLight(vec3 p, vec3 n){
vec3 l = gPageC - p; float d2 = dot(l, l); l *= inversesqrt(d2);
return uLit * 2.3 * max(dot(n, l), 0.0) * max(dot(gPageN, -l), 0.0) / (0.5 + d2 * 0.5);
}
float lodOf(float texels){ return clamp(log2(gDist * gPix * texels), 0.0, 7.0); }
vec3 shade(vec3 p, vec3 n, float id, vec3 rd, bool hq){
float sh = 1.0, ao = 1.0;
if (hq){ sh = shadow(p + n * 0.006, KEY); ao = occ(p, n); }
vec3 keyL = KEYC * max(dot(n, KEY), 0.0) * sh * 1.5;
vec3 amb = vec3(0.07, 0.076, 0.09) * ao * (0.6 + 0.4 * n.y);
float pl = pageLight(p, n);
vec3 r = reflect(rd, n);
float nv = max(dot(n, -rd), 0.0);
float so = 0.35 + 0.65 * ao;
vec3 col;
if (id < 1.5 || (id > 3.5 && id < 4.5)){
// plinth and base: bead-blasted black anodising
vec3 l = id < 1.5 ? toKey(p) : toBase(p);
float g = n2(l.xz * 60.0 + l.y * 41.0);
float f = 0.045 + 0.955 * pow(1.0 - nv, 5.0);
vec2 cell = floor(l.xz * 41.0); float hs = h21(cell + id);
vec2 cp = (cell + 0.2 + 0.6 * vec2(h21(cell + 3.1), h21(cell + 7.7))) / 41.0;
float dust = step(id, 1.5) * step(0.985, hs) * smoothstep(0.003 + 0.004 * h21(cell + 1.3), 0.0, length(l.xz - cp)) * step(0.9, n.y);
float smear = n2(l.xz * 3.1 + 7.0) * n2(l.xz * 7.3);
col = (vec3(0.016, 0.017, 0.021) * (0.94 + 0.12 * g) + dust * 0.4) * (keyL + amb + pl) + envF(p, r, 0.16 + 0.03 * g + 0.14 * smear) * f * so;
// light from underneath bounces off the floor and up the sides
col += BLUE * (id < 1.5 ? uGlow : uChan.w) * 0.16 * exp(-max(l.y - 0.05, 0.0) * 13.0) * (1.0 - abs(n.y));
if (l.y < (id < 1.5 ? 0.0505 : 0.0405)) col = BLUE * (id < 1.5 ? uGlow : uChan.w) * 3.5 + vec3(1.0) * (id < 1.5 ? uGlow : uChan.w) * 0.4;
return col;
}
if (id < 2.5){
vec3 k = toKey(p);
float w2 = rb2(k.xz, vec2(0.47), 0.13);
float hgt = k.y - (PT + 0.03);
if (w2 < 0.006 && hgt < 0.006) return (BLUE * 5.5 + 0.12) * uGlow; // the diffuser at the bottom of the gap
if (w2 < 0.04 && n.y < 0.6){
// wall of the well, washed by the light below it
col = fres(ALU, nv) * envF(p, r, 0.22) * so;
return col * 0.5 + BLUE * 1.5 * uGlow * exp(-max(hgt, 0.0) * 17.0) * ALU;
}
if (n.y > 0.9){
// top face, brushed front to back, with paint-filled engraving and two lamps
vec3 nn = normalize(n + vec3(1.0, 0.0, 0.0) * ((n1(k.x * 520.0) - 0.5) * 0.05 + (n1(k.x * 130.0 + 5.0) - 0.5) * 0.03));
col = fres(ALU, nv) * (aniso(p, rd, nn, vec3(0.0, 0.0, 1.0), 0.34, 0.1) * so * (0.86 + 0.14 * n1(k.x * 260.0 + 9.0)) + 0.07 * (keyL + pl));
float ink = textureLod(uMarks, k.xz / 1.3 + 0.5, lodOf(1575.0)).r;
col = mix(col, vec3(0.012, 0.013, 0.016) * (keyL + amb) + envF(p, r, 0.3) * 0.04, ink * 0.96);
vec2 pd = vec2(abs(k.x) - 0.066, k.z - 0.533);
float pip = smoothstep(0.019, 0.015, length(pd));
float lev = k.x < 0.0 ? uPip.x : uPip.y;
vec3 lamp = k.x < 0.0 ? vec3(0.8, 0.83, 0.9) * 1.3 : BLUE * 7.0 + 0.12;
col = mix(col, vec3(0.01) + lamp * lev, pip);
col += (k.x < 0.0 ? vec3(0.05) : BLUE * 0.5) * lev * exp(-length(pd) * 26.0) * (1.0 - pip);
// four socket screws hold the collar down
float sd = length(abs(k.xz) - 0.506);
if (sd < 0.04){
vec2 hx = abs(k.xz - sign(k.xz) * 0.506);
float hex = max(hx.x * 0.866 + hx.y * 0.5, hx.y) - 0.014;
vec3 head = fres(ALU, nv) * envF(p, reflect(rd, normalize(n + vec3(k.x, 0.0, k.z) * 0.0 + vec3(hx.x, 0.0, hx.y) * 2.5 * sign(k.x))), 0.05) * so;
col = mix(col, head * 0.9, smoothstep(0.03, 0.028, sd));
col *= 1.0 - 0.75 * smoothstep(0.036, 0.031, sd) * smoothstep(0.026, 0.03, sd);
col = mix(col, vec3(0.004), smoothstep(0.002, -0.001, hex));
}
// light creeping over the lip of the well
col += BLUE * uGlow * 0.5 * exp(-max(w2 - 0.03, 0.0) * 34.0);
return col;
}
if (abs(n.y) < 0.25){
vec3 nn = normalize(n + vec3(0.0, 1.0, 0.0) * (n1(k.y * 700.0) - 0.5) * 0.05);
return fres(ALU, nv) * (aniso(p, rd, nn, vec3(0.0, 1.0, 0.0), 0.3, 0.1) * so + 0.07 * (keyL + pl));
}
return fres(ALU, nv) * (envF(p, r, 0.035) * so + 0.05 * (keyL + pl)); // diamond-cut chamfers
}
if (id < 3.5){
vec3 k = toKey(p);
float rr = length(k.xz); vec3 rdir = vec3(k.x, 0.0, k.z) / max(rr, 1e-4);
float dish = smoothstep(0.372, 0.36, rr) * step(0.55, n.y);
if (n.y > 0.55){
// the dish is faced on a lathe, the flat round it is brushed straight
vec3 bit = mix(vec3(0.0, 0.0, 1.0), rdir, dish);
vec3 gr = mix(vec3(1.0, 0.0, 0.0) * ((n1(k.x * 430.0) - 0.5) * 0.035 + (n1(k.x * 90.0 + 2.0) - 0.5) * 0.02), rdir * ((n1(rr * 420.0) - 0.5) * 0.05 + (n1(rr * 95.0 + 4.0) - 0.5) * 0.03), dish);
vec3 nn = normalize(n + gr);
col = fres(ALU, nv) * (aniso(p, rd, nn, bit, mix(0.2, 0.36, dish), mix(0.09, 0.05, dish)) * so * (0.88 + 0.12 * n1(rr * 180.0 + 1.0)) + 0.05 * (keyL + pl + amb));
// the cutter leaves a bright lip where the dish meets the flat
float lip = smoothstep(0.012, 0.0, abs(rr - 0.366));
col = mix(col, fres(ALU, nv) * envF(p, reflect(rd, normalize(n - rdir * 0.55)), 0.04), lip * 0.85);
} else col = fres(ALU, nv) * (envF(p, r, 0.05) * so + 0.05 * (keyL + pl + amb));
float hgt = k.y - (PT + 0.03);
if (n.y > 0.55){
// the arrow is a light pipe let into the metal: brightest down its middle, with a dark cut edge
float ar = textureLod(uMarks, k.xz / 1.3 + 0.5, lodOf(1575.0)).g;
float soft = textureLod(uMarks, k.xz / 1.3 + 0.5, 4.6).g;
float core = smoothstep(0.45, 0.95, soft);
col *= 1.0 - 0.6 * smoothstep(0.02, 0.4, soft) * (1.0 - ar);
vec3 lens = vec3(0.2, 0.26, 0.4) * (keyL + amb) * 0.3 + BLUE * (0.45 + 1.1 * uGlow + 3.4 * uGlow * core) + vec3(1.0) * 1.7 * uGlow * core * core;
col += BLUE * uGlow * 0.55 * soft * (1.0 - ar);
col = mix(col, lens, ar);
} else {
col += BLUE * 1.5 * uGlow * exp(-max(hgt, 0.0) * 12.0) * smoothstep(0.5, -0.2, n.y) * ALU;
}
return col;
}
// the lightbox
vec3 q = toBox(toBase(p)), nq = dirBox(n);
vec2 c = q.xy - vec2(0.0, 0.82);
float fd = rb2(c, vec2(1.0, 0.75), 0.03), aa = gDist * gPix * 1.2;
float film = smoothstep(aa, -aa, fd) * step(0.07, q.z);
vec3 filmC = vec3(0.0);
if (film > 0.0){
float vt = (c.y + 0.75) / 1.5;
vec2 uv = vec2(c.x * 0.5 + 0.5, 1.0 - vt);
float lv = smoothstep(0.0, 0.012, uInk * 1.06 - vt);
vec3 live = pow(textureLod(uLive, uv, lodOf(1024.0)).rgb, vec3(2.2));
vec3 draft = pow(textureLod(uDraft, uv, lodOf(512.0)).rgb, vec3(2.2));
vec3 alb = mix(draft, live * 0.42, lv);
float f = 0.04 + 0.96 * pow(1.0 - nv, 5.0);
col = alb * (keyL * 0.8 + amb * 1.4) + envF(p, r, 0.05) * f;
// opal acrylic over edge lamps: a touch brighter toward the frame, and never perfectly even
float even = 0.9 + 0.1 * smoothstep(0.45, 0.0, min(1.0 - abs(c.x), 0.75 - abs(c.y))) + 0.02 * n2(c * 3.0);
col += live * lv * uLit * 2.1 * even;
if (uInk > 0.002 && uInk < 0.998){
float d = uInk * 1.06 - vt;
col += (BLUE * 6.0 + 1.4) * exp(-abs(d) * 130.0) + BLUE * 0.9 * exp(-max(d, 0.0) * 9.0) * step(0.0, d);
}
if (film > 0.999) return col;
filmC = col;
}
// frame: dark titanium grey, satin, with a polished edge
float edge = 1.0 - smoothstep(0.8, 0.97, max(abs(nq.z), max(abs(nq.x), abs(nq.y))));
vec3 bw = normalize(boxToWorld(vec3(1.0, 0.0, 0.0)) - boxToWorld(vec3(0.0)));
vec3 nn = normalize(n + bw * (n1(q.x * 150.0) - 0.5) * 0.03 * (1.0 - edge));
col = fres(ALU, nv) * (mix(aniso(p, rd, nn, normalize(cross(n, bw)), 0.3, 0.1), envF(p, r, 0.09), edge) * so + 0.07 * (keyL + pl));
// the rebate round the film catches the page's own light
// a black gasket holds the film in the frame, and catches a little of the page's light
float gasket = smoothstep(0.016 + aa, 0.016 - aa, fd) * step(0.07, q.z);
col = mix(col, vec3(0.006, 0.0065, 0.008) + vec3(0.9, 0.92, 1.0) * uLit * 0.07 * smoothstep(0.016, 0.0, fd), gasket);
return mix(col, filmC, film);
}
vec3 backdrop(vec3 rd){
return mix(vec3(0.03, 0.034, 0.045), vec3(0.0035, 0.004, 0.0055), smoothstep(0.0, 0.42, rd.y));
}
vec3 floorShade(vec3 p, vec3 rd, float t){
vec3 n = normalize(vec3((n2(p.xz * 0.9) - 0.5) * 0.004, 1.0, (n2(p.zx * 0.9 + 5.0) - 0.5) * 0.004));
float near = step(t, 26.0);
float sh = 1.0, ao = 1.0;
vec3 k = toKey(p), q = toBase(p);
float dK = rb2(k.xz, vec2(0.8), 0.15), dP = rb2(q.xz - vec2(0.0, -0.04), vec2(1.2, 0.34), 0.07) * MS;
if (near > 0.5){
sh = shadow(p + vec3(0.0, 0.006, 0.0), KEY);
ao = clamp(0.25 + 0.75 * min(smoothstep(-0.06, 0.5, dK), smoothstep(-0.06, 0.4, dP)), 0.0, 1.0);
}
vec2 cc = p.xz - 0.5 * (uPos.xy + uPos.zw);
float pool = 1.0 / (1.0 + dot(cc, cc) * 0.055); pool *= pool;
vec3 alb = vec3(0.05, 0.052, 0.06) * (0.9 + 0.2 * n2(p.xz * 2.2));
// dust on the floor that catches the key light
vec2 cell = floor(p.xz * 23.0); float hs = h21(cell);
vec2 cp = (cell + 0.2 + 0.6 * vec2(h21(cell + 3.1), h21(cell + 7.7))) / 23.0;
alb += step(0.993, hs) * smoothstep(0.004 + 0.006 * h21(cell + 1.3), 0.0, length(p.xz - cp)) * 0.3;
vec3 col = alb * (KEYC * KEY.y * sh * pool * 1.5 + vec3(0.05) * ao + pageLight(p, n) * ao);
// the mirror
vec3 rr = reflect(rd, n);
float f = 0.055 + 0.945 * pow(1.0 - max(dot(n, -rd), 0.0), 5.0);
vec3 rc = env(p, rr, 0.3) * 0.2 * (0.4 + 0.6 * ao);
if (near > 0.5){
vec3 rp = p + vec3(0.0, 0.004, 0.0);
vec2 rh = march(rp, rr, 56, 12.0);
if (rh.y > 0.5){
vec3 hp = rp + rr * rh.x;
gDist = t + rh.x;
rc = shade(hp, normal(hp), rh.y, rr, false) * exp(-rh.x * 0.7);
}
}
col += rc * f * (0.9 + 0.1 * n2(p.xz * 1.3 + 3.0));
// blue light leaking from under the plinth, and under the model once the channel is lit
float oK = max(dK, 0.0), oP = max(dP, 0.0);
col += BLUE * uGlow * (0.34 * exp(-oK * 11.0) + 0.06 * exp(-oK * 2.6)) * step(0.0, dK + 0.1);
col += BLUE * uChan.w * (0.26 * exp(-oP * 11.0) + 0.04 * exp(-oP * 2.6)) * step(0.0, dP + 0.1);
// the thump when the key lands: a ring of light running out across the floor
col += BLUE * uPip.w * (0.5 * exp(-pow((oK - uPip.z) * 8.0, 2.0)) + 0.07 * exp(-pow((oK - uPip.z) * 2.6, 2.0))) * step(0.0, dK);
// the channel let into the floor
vec2 a = uSeg.xy, b = uSeg.zw, ab = b - a;
float s = clamp(dot(p.xz - a, ab) / dot(ab, ab), 0.0, 1.0);
float d = length(p.xz - a - ab * s);
float core = smoothstep(0.02, 0.011, d);
float level = smoothstep(0.0, 0.03, uChan.z - s) * (0.75 + 0.25 * sin(s * 40.0 - uTime * 2.4)) + uChan.y * exp(-pow((s - uChan.x) * 6.5, 2.0)) * 3.0;
col = mix(col, vec3(0.004), core * 0.85);
col += (BLUE * (0.035 + 4.5 * level) + vec3(1.0) * level * 0.9) * core + BLUE * level * 0.22 * exp(-d * 13.0);
return mix(col, backdrop(vec3(rd.x, 0.0, rd.z)), smoothstep(8.0, 30.0, t));
}
vec3 aces(vec3 x){ return clamp((x * (2.51 * x + 0.03)) / (x * (2.43 * x + 0.59) + 0.14), 0.0, 1.0); }
void main(){
gCy = cos(uYaw); gSy = sin(uYaw); gCl = cos(0.2); gSl = sin(0.2);
gPageC = boxToWorld(vec3(0.0, 0.82, 0.09));
gPageN = normalize(boxToWorld(vec3(0.0, 0.82, 1.08)) - gPageC);
gKeyC = vec3(uPos.x, PT + 0.06, uPos.y);
gPix = 2.0 * tan(uFov * 0.5) / uRes.y;
vec2 uv = (gl_FragCoord.xy - 0.5 * uRes) / uRes.y;
vec3 fw = normalize(uTarget - uCam), rgt = normalize(cross(fw, vec3(0.0, 1.0, 0.0))), up = cross(rgt, fw);
vec3 rd = normalize(fw + (uv.x * rgt + uv.y * up) * 2.0 * tan(uFov * 0.5));
vec3 ro = uCam;
float tf = rd.y < -1e-4 ? -ro.y / rd.y : 1e5;
vec2 hit = march(ro, rd, 120, min(tf, 40.0));
float t; vec3 col;
if (hit.y > 0.5 && hit.x < tf){
t = hit.x; vec3 p = ro + rd * t; gDist = t;
col = shade(p, normal(p), hit.y, rd, true);
} else if (tf < 1e4){
t = tf; col = floorShade(ro + rd * tf, rd, tf);
} else { t = 40.0; col = backdrop(rd); }
// light in the air above the key and in front of the page
float tc = clamp(dot(gKeyC - ro, rd), 0.0, t);
float dm = length(ro + rd * tc - gKeyC);
col += BLUE * uGlow * 0.006 / (0.1 + dm * dm * 2.2);
vec3 pc = gPageC + gPageN * 0.5;
tc = clamp(dot(pc - ro, rd), 0.0, t);
dm = length(ro + rd * tc - pc);
col += vec3(0.85, 0.9, 1.0) * uLit * 0.01 / (0.25 + dm * dm);
float mx = max(col.r, max(col.g, col.b));
col = mix(col * (aces(vec3(mx)).r / max(mx, 0.0001)), aces(col), 0.14);
col = pow(col, vec3(1.0 / 2.2));
o = vec4(col, clamp(t / 24.0, 0.0, 1.0));
}`;
const POST = `#version 300 es
precision highp float;
in vec2 vUv; out vec4 o;
uniform sampler2D uSrc;
uniform vec2 uRes;
uniform float uFocus, uTime;
float hash(vec2 p){ return fract(sin(dot(p, vec2(12.9898, 78.233))) * 43758.5453); }
void main(){
vec4 c0 = texture(uSrc, vUv);
float z = c0.a * 24.0;
{
vec2 e = 1.0 / uRes; vec3 L = vec3(0.299, 0.587, 0.114);
float nw = dot(textureLod(uSrc, vUv + vec2(-e.x, -e.y), 0.0).rgb, L), ne = dot(textureLod(uSrc, vUv + vec2(e.x, -e.y), 0.0).rgb, L);
float sw = dot(textureLod(uSrc, vUv + vec2(-e.x, e.y), 0.0).rgb, L), se = dot(textureLod(uSrc, vUv + e, 0.0).rgb, L), lm = dot(c0.rgb, L);
float lo = min(lm, min(min(nw, ne), min(sw, se))), hi = max(lm, max(max(nw, ne), max(sw, se)));
vec2 dir = vec2(-((nw + ne) - (sw + se)), (nw + sw) - (ne + se));
float rcp = 1.0 / (min(abs(dir.x), abs(dir.y)) + max((nw + ne + sw + se) * 0.03125, 0.0078));
dir = clamp(dir * rcp, -8.0, 8.0) * e;
vec3 a = 0.5 * (textureLod(uSrc, vUv + dir * (1.0 / 3.0 - 0.5), 0.0).rgb + textureLod(uSrc, vUv + dir * (2.0 / 3.0 - 0.5), 0.0).rgb);
vec3 b = a * 0.5 + 0.25 * (textureLod(uSrc, vUv - dir * 0.5, 0.0).rgb + textureLod(uSrc, vUv + dir * 0.5, 0.0).rgb);
float lb = dot(b, L);
c0.rgb = (lb < lo || lb > hi) ? a : b;
}
float px = uRes.y / 720.0;
float coc = clamp(abs(z - uFocus) / max(z, 0.1) * (z < uFocus ? 7.0 : 5.0) - 0.9, 0.0, 6.0) * px;
vec3 acc = c0.rgb; float ws = 1.0;
float j = hash(gl_FragCoord.xy) * 6.283;
float lod = log2(max(coc / 3.0, 1.0));
for (int i = 0; i < 14; i++){
float fi = (float(i) + 0.5) / 14.0;
float a = float(i) * 2.39996 + j;
vec2 off = vec2(cos(a), sin(a)) * sqrt(fi) * coc / uRes;
vec4 s = textureLod(uSrc, vUv + off, lod);
float w = 1.0 + 5.0 * pow(max(s.r, max(s.g, s.b)), 6.0);
acc += s.rgb * w; ws += w;
}
vec3 col = acc / ws;
vec3 bl = textureLod(uSrc, vUv, 3.0).rgb * 0.35 + textureLod(uSrc, vUv, 4.5).rgb * 0.35 + textureLod(uSrc, vUv, 6.0).rgb * 0.3;
col += bl * bl * 0.11;
vec2 v = vUv - 0.5;
col *= 1.0 - dot(v, v) * 0.8;
col = mix(col, col * col * (3.0 - 2.0 * col), 0.3);
float g = hash(gl_FragCoord.xy + fract(uTime) * 91.7) - 0.5;
col += g * 0.026 * (1.0 - 0.5 * col);
o = vec4(col, 1.0);
}`;
/* ---------- small motion helpers ---------- */
type Spring = { x: number; v: number; t: number; k: number; c: number };
const spring = (x: number, k: number, c: number): Spring => ({ x, v: 0, t: x, k, c });
const stepSpring = (s: Spring, dt: number) => {
s.v += (-s.k * (s.x - s.t) - s.c * s.v) * dt;
s.x += s.v * dt;
};
export default function PublishKeyLightboxPage() {
const reduce = useReducedMotion();
const [live, setLive] = useState(true);
const [ready, setReady] = useState(false);
const rootRef = useRef<HTMLElement>(null);
const canvasRef = useRef<HTMLCanvasElement>(null);
const hitRef = useRef<HTMLDivElement>(null);
// The render loop owns the scene. React talks to it through this handle.
const api = useRef<{ toggle: () => void; hold: (down: boolean) => void } | null>(null);
useEffect(() => {
const root = rootRef.current;
const canvas = canvasRef.current;
if (!root || !canvas) return;
const gl = canvas.getContext("webgl2", { antialias: false, alpha: false, powerPreference: "high-performance" });
if (!gl) return;
const compile = (type: number, src: string) => {
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");
return s;
};
const link = (fs: string) => {
const p = gl.createProgram()!;
gl.attachShader(p, compile(gl.VERTEX_SHADER, VERT));
gl.attachShader(p, compile(gl.FRAGMENT_SHADER, fs));
gl.bindAttribLocation(p, 0, "a");
gl.linkProgram(p);
if (!gl.getProgramParameter(p, gl.LINK_STATUS)) throw new Error(gl.getProgramInfoLog(p) || "link");
return p;
};
let scene: WebGLProgram;
let post: WebGLProgram;
try {
scene = link(SCENE);
post = link(POST);
} catch (e) {
console.error(e);
return;
}
const U = (p: WebGLProgram, n: string) => gl.getUniformLocation(p, n);
const su = Object.fromEntries(["uRes", "uCam", "uTarget", "uFov", "uTime", "uPos", "uYaw", "uPress", "uGlow", "uInk", "uLit", "uSeg", "uChan", "uPip", "uLive", "uDraft", "uMarks"].map((n) => [n, U(scene, n)]));
const pu = Object.fromEntries(["uSrc", "uRes", "uFocus", "uTime"].map((n) => [n, U(post, n)]));
const quad = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, quad);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([-1, -1, 3, -1, -1, 3]), gl.STATIC_DRAW);
gl.enableVertexAttribArray(0);
gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0);
const aniso = gl.getExtension("EXT_texture_filter_anisotropic");
const makeTex = () => {
const t = gl.createTexture()!;
gl.bindTexture(gl.TEXTURE_2D, t);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_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);
if (aniso) gl.texParameterf(gl.TEXTURE_2D, aniso.TEXTURE_MAX_ANISOTROPY_EXT, Math.min(8, gl.getParameter(aniso.MAX_TEXTURE_MAX_ANISOTROPY_EXT)));
return t;
};
const upload = (t: WebGLTexture, src: HTMLCanvasElement) => {
gl.bindTexture(gl.TEXTURE_2D, t);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, src);
gl.generateMipmap(gl.TEXTURE_2D);
};
const mk = (w: number, h: number) => {
const c = document.createElement("canvas");
c.width = w;
c.height = h;
return [c, c.getContext("2d")!] as const;
};
const liveTex = makeTex();
const draftTex = makeTex();
const marksTex = makeTex();
let dirty = true;
const paintLive = (img: HTMLImageElement | null) => {
const [cv, cx] = mk(2048, 1536);
drawLive(cx, img);
try {
upload(liveTex, cv);
} catch {
// a photograph that may not be read back: print the page with the plain study instead
const [c2, x2] = mk(2048, 1536);
drawLive(x2, null);
upload(liveTex, c2);
}
dirty = true;
};
paintLive(null);
{
const [cv, cx] = mk(1024, 768);
drawDraft(cx);
upload(draftTex, cv);
const [mv, mx] = mk(2048, 2048);
drawMarks(mx);
upload(marksTex, mv);
}
const photo = new Image();
photo.crossOrigin = "anonymous";
photo.decoding = "async";
photo.onload = () => paintLive(photo);
photo.src = PHOTO.src;
// the moving parts
const press = spring(LATCH, 420, 22);
const glow = spring(1, 200, 20);
const lit = spring(1, 150, 13);
const push = spring(0, 60, 9);
const under = spring(1, 60, 14);
const pip = spring(1, 90, 16);
const ink = { x: 1, t: 1, rate: 2 };
const fill = { x: 1, t: 1, rate: 2 };
const pulse = { x: 2, on: false };
const ring = { r: 0, s: 0 };
const cam = { ax: 0, ay: 0, tx: 0, ty: 0 };
let isLive = true;
let held = false;
let flicker: { at: number; v: number }[] = [];
let demo = !reduce;
let clock = 0;
let time = 0;
let idleAt = 4.2;
let wake = Infinity;
let cues: { at: number; fn: () => void }[] = [];
const at = (delay: number, fn: () => void) => {
cues.push({ at: clock + delay, fn });
cues.sort((a, b) => a.at - b.at);
};
const settle = (on: boolean) => {
cues = [];
flicker = [];
const set = (s: Spring, v: number) => ((s.x = s.t = v), (s.v = 0));
set(press, on ? LATCH : 0);
set(glow, on ? 1 : 0.42);
set(lit, on ? 1 : 0);
set(under, on ? 1 : 0);
set(pip, on ? 1 : 0);
ink.x = ink.t = fill.x = fill.t = on ? 1 : 0;
pulse.on = false;
ring.s = 0;
dirty = true;
};
/** The key has reached its stop: run what follows from it. */
const strike = (on: boolean) => {
isLive = on;
cues = [];
flicker = [];
push.v += 2.2;
ring.r = 0;
ring.s = on ? 1 : 0.45;
if (on) {
glow.t = 2.6;
pip.t = 1;
pulse.x = 0;
pulse.on = true;
fill.t = 1;
fill.rate = 1 / 0.5;
at(0.1, () => {
press.k = 520;
press.c = 17;
press.t = held ? 1 : LATCH;
});
at(0.22, () => (glow.t = 1));
at(0.5, () => {
under.t = 1;
ink.t = 1;
ink.rate = 1 / 0.5;
});
at(1.04, () => {
// the lamps catch, drop out, catch again and hold
flicker = [
{ at: clock, v: 0.7 },
{ at: clock + 0.05, v: 0.04 },
{ at: clock + 0.13, v: 0.95 },
{ at: clock + 0.18, v: 0.16 },
{ at: clock + 0.25, v: 1.25 },
];
setLive(true);
});
at(1.32, () => {
flicker = [];
lit.t = 1;
});
} else {
glow.t = 0.42;
pip.t = 0;
lit.k = 520;
lit.c = 46;
lit.t = 0;
setLive(false);
at(0.09, () => {
press.k = 300;
press.c = 13;
press.t = held ? 1 : 0;
});
at(0.12, () => {
ink.t = 0;
ink.rate = 1 / 0.38;
fill.t = 0;
fill.rate = 1 / 0.45;
under.t = 0;
});
at(0.7, () => {
lit.k = 150;
lit.c = 13;
});
}
};
const toggle = () => {
const next = !isLive;
if (reduce) {
isLive = next;
setLive(next);
settle(next);
return;
}
press.k = 620;
press.c = 30;
press.t = 1;
cues = [];
at(0.11, () => strike(next));
};
const quiet = () => {
demo = false;
idleAt = Infinity;
wake = clock + 14;
};
api.current = {
toggle: () => {
quiet();
toggle();
kick();
},
hold: (down) => {
if (reduce) {
if (!down) {
isLive = !isLive;
setLive(isLive);
settle(isLive);
kick();
}
return;
}
quiet();
held = down;
if (down) {
press.k = 620;
press.c = 30;
press.t = 1;
} else strike(!isLive);
kick();
},
};
// render target
const fbo = gl.createFramebuffer();
const fbTex = gl.createTexture()!;
gl.bindTexture(gl.TEXTURE_2D, fbTex);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_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);
let scale = Math.min(MAX_SCALE, Math.max(1, window.devicePixelRatio || 1));
let cssW = 1;
let cssH = 1;
let phone = false;
let bw = 0;
let bh = 0;
const resize = () => {
const r = canvas.getBoundingClientRect();
cssW = Math.max(1, r.width);
cssH = Math.max(1, r.height);
phone = cssW < 768;
// never more than about 1.9 million pixels through the ray marcher
const s = Math.min(scale, Math.sqrt(1.9e6 / (cssW * cssH)));
const w = Math.round(cssW * s);
const h = Math.round(cssH * s);
if (w !== bw || h !== bh) {
bw = w;
bh = h;
canvas.width = w;
canvas.height = h;
gl.bindTexture(gl.TEXTURE_2D, fbTex);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, w, h, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, fbTex, 0);
}
dirty = true;
};
resize();
let hitKey = "";
const draw = () => {
const wide = cssW / cssH;
// where things stand, and where the camera is
const key = phone ? [0.25, 1.35] : [-0.1, 0.9];
const model = phone ? [-0.1, -1.45] : [2.1, -1.15];
const yaw = phone ? 0.1 : -0.34;
const tgt = phone ? [0.05, 0.85, -0.1] : [0.2, 0.62, 0.1];
const az = (phone ? 0.12 : -0.2) + cam.ax * 0.1 + Math.sin(time * 0.21) * 0.018;
const el = (phone ? 0.5 : 0.4) - cam.ay * 0.05 + Math.sin(time * 0.29 + 1) * 0.007;
const fov = phone ? 0.5 : 0.4;
const dist = (phone ? 12.0 : 7.6 * Math.max(1, 1.6 / wide)) * (1 - 0.012 * push.x);
const camPos = [tgt[0] + dist * Math.sin(az) * Math.cos(el), tgt[1] + dist * Math.sin(el), tgt[2] + dist * Math.cos(az) * Math.cos(el)];
// the channel runs from the edge of the plinth to the edge of the model's base
const dx = model[0] - key[0];
const dz = model[1] - key[1];
const len = Math.hypot(dx, dz);
const ux = dx / len;
const uz = dz / len;
const seg = [key[0] + ux * 0.76, key[1] + uz * 0.76, model[0] - ux * 0.42, model[1] - uz * 0.42];
const breathe = reduce ? 0 : 1;
const rest = 1 - Math.min(1, pip.x);
gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
gl.viewport(0, 0, bw, bh);
gl.useProgram(scene);
gl.uniform2f(su.uRes, bw, bh);
gl.uniform3f(su.uCam, camPos[0], camPos[1], camPos[2]);
gl.uniform3f(su.uTarget, tgt[0], tgt[1], tgt[2]);
gl.uniform1f(su.uFov, fov);
gl.uniform1f(su.uTime, time);
gl.uniform4f(su.uPos, key[0], key[1], model[0], model[1]);
gl.uniform1f(su.uYaw, yaw);
gl.uniform1f(su.uPress, Math.max(-0.12, Math.min(1.06, press.x)));
gl.uniform1f(su.uGlow, Math.max(0, glow.x) * (1 + (0.04 + 0.3 * rest) * Math.sin(time * 1.9) * breathe));
gl.uniform1f(su.uInk, ink.x);
gl.uniform1f(su.uLit, Math.max(0, lit.x) * (1 + 0.012 * Math.sin(time * 9.0) * breathe));
gl.uniform4f(su.uSeg, seg[0], seg[1], seg[2], seg[3]);
gl.uniform4f(su.uChan, pulse.x, pulse.on ? 1 : 0, fill.x * 1.04, Math.max(0, under.x));
gl.uniform4f(su.uPip, rest, Math.max(0, pip.x), ring.r, ring.s);
gl.activeTexture(gl.TEXTURE0);
gl.bindTexture(gl.TEXTURE_2D, liveTex);
gl.uniform1i(su.uLive, 0);
gl.activeTexture(gl.TEXTURE1);
gl.bindTexture(gl.TEXTURE_2D, draftTex);
gl.uniform1i(su.uDraft, 1);
gl.activeTexture(gl.TEXTURE2);
gl.bindTexture(gl.TEXTURE_2D, marksTex);
gl.uniform1i(su.uMarks, 2);
gl.drawArrays(gl.TRIANGLES, 0, 3);
gl.bindFramebuffer(gl.FRAMEBUFFER, null);
gl.viewport(0, 0, bw, bh);
gl.useProgram(post);
gl.activeTexture(gl.TEXTURE0);
gl.bindTexture(gl.TEXTURE_2D, fbTex);
gl.generateMipmap(gl.TEXTURE_2D);
gl.uniform1i(pu.uSrc, 0);
gl.uniform2f(pu.uRes, bw, bh);
const f = [key[0] + 0.5 * ux - camPos[0], 0.7 - camPos[1], key[1] + 0.5 * uz - camPos[2]];
gl.uniform1f(pu.uFocus, Math.hypot(f[0], f[1], f[2]));
gl.uniform1f(pu.uTime, reduce ? 0 : time);
gl.drawArrays(gl.TRIANGLES, 0, 3);
// keep the pointer target over the key
const hit = hitRef.current;
if (hit) {
const fw = [tgt[0] - camPos[0], tgt[1] - camPos[1], tgt[2] - camPos[2]];
const fl = Math.hypot(fw[0], fw[1], fw[2]);
fw[0] /= fl; fw[1] /= fl; fw[2] /= fl;
const rg = [-fw[2], 0, fw[0]];
const rl = Math.hypot(rg[0], rg[2]);
rg[0] /= rl; rg[2] /= rl;
const up = [rg[1] * fw[2] - rg[2] * fw[1], rg[2] * fw[0] - rg[0] * fw[2], rg[0] * fw[1] - rg[1] * fw[0]];
const v = [key[0] - camPos[0], 0.55 - camPos[1], key[1] - camPos[2]];
const depth = v[0] * fw[0] + v[1] * fw[1] + v[2] * fw[2];
const k = cssH / (depth * 2 * Math.tan(fov / 2));
const x = cssW / 2 + (v[0] * rg[0] + v[2] * rg[2]) * k;
const y = cssH / 2 - (v[0] * up[0] + v[1] * up[1] + v[2] * up[2]) * k;
const next = `${Math.round(x)}|${Math.round(y)}|${Math.round(1.5 * k)}`;
if (next !== hitKey) {
hitKey = next;
hit.style.left = `${x}px`;
hit.style.top = `${y}px`;
hit.style.width = `${1.5 * k}px`;
hit.style.height = `${1.15 * k}px`;
}
}
};
let raf = 0;
let last = 0;
let onScreen = true;
let slow = 0;
let first = true;
const frame = (now: number) => {
raf = 0;
const raw = last ? (now - last) / 1000 : 0.016;
last = now;
const dt = Math.min(raw, 0.1);
if (reduce) {
if (dirty) {
dirty = false;
draw();
}
} else {
clock += dt;
time += dt;
while (cues.length && cues[0].at <= clock) cues.shift()!.fn();
if (clock > wake) {
wake = Infinity;
demo = true;
idleAt = clock + 1.5;
}
if (demo && clock > idleAt) {
toggle();
idleAt = clock + (isLive ? HOLD_DRAFT : HOLD_LIVE + 1.4);
}
for (let n = 0; n < 4; n++) {
const h = dt / 4;
stepSpring(press, h);
stepSpring(glow, h);
stepSpring(lit, h);
stepSpring(push, h);
stepSpring(under, h);
stepSpring(pip, h);
}
// the key lands on a rubber stop
if (press.x > 1.04) {
press.x = 1.04;
press.v *= -0.3;
}
if (flicker.length) {
let v = lit.x;
for (const f of flicker) if (clock >= f.at) v = f.v;
lit.x = v;
lit.v = 0;
}
ink.x += Math.sign(ink.t - ink.x) * Math.min(Math.abs(ink.t - ink.x), dt * ink.rate);
fill.x += Math.sign(fill.t - fill.x) * Math.min(Math.abs(fill.t - fill.x), dt * fill.rate);
if (ring.s > 0.001) {
ring.r += dt * (3.4 - ring.r * 0.9);
ring.s *= Math.exp(-dt * 3.6);
} else ring.s = 0;
if (pulse.on) {
pulse.x += dt / 0.5;
if (pulse.x > 1.5) pulse.on = false;
}
const kc = 1 - Math.exp(-dt * 3.2);
cam.ax += (cam.tx - cam.ax) * kc;
cam.ay += (cam.ty - cam.ay) * kc;
draw();
// step the resolution down if this machine cannot hold the frame rate
if (raw > 0.03) slow++;
else slow = Math.max(0, slow - 1);
if (slow > 24 && scale > MIN_SCALE) {
scale = Math.max(MIN_SCALE, scale * 0.84);
slow = 0;
resize();
}
}
if (first) {
first = false;
setReady(true);
}
if (onScreen && !document.hidden && (!reduce || dirty)) raf = requestAnimationFrame(frame);
};
function kick() {
if (!raf && onScreen && !document.hidden) {
last = 0;
raf = requestAnimationFrame(frame);
}
}
const io = new IntersectionObserver(([e]) => {
onScreen = e.isIntersecting;
kick();
});
io.observe(root);
const ro = new ResizeObserver(() => {
resize();
kick();
});
ro.observe(canvas);
const onVis = () => kick();
document.addEventListener("visibilitychange", onVis);
const onMove = (e: PointerEvent) => {
if (reduce) return;
const r = root.getBoundingClientRect();
cam.tx = Math.max(-1, Math.min(1, ((e.clientX - r.left) / r.width) * 2 - 1));
cam.ty = Math.max(-1, Math.min(1, ((e.clientY - r.top) / r.height) * 2 - 1));
};
const onLeave = () => {
cam.tx = 0;
cam.ty = 0;
};
root.addEventListener("pointermove", onMove);
root.addEventListener("pointerleave", onLeave);
const onLost = (e: Event) => {
e.preventDefault();
setReady(false);
cancelAnimationFrame(raf);
api.current = null;
};
canvas.addEventListener("webglcontextlost", onLost);
const photoKick = () => kick();
photo.addEventListener("load", photoKick);
kick();
return () => {
cancelAnimationFrame(raf);
io.disconnect();
ro.disconnect();
document.removeEventListener("visibilitychange", onVis);
root.removeEventListener("pointermove", onMove);
root.removeEventListener("pointerleave", onLeave);
canvas.removeEventListener("webglcontextlost", onLost);
photo.removeEventListener("load", photoKick);
photo.onload = null;
api.current = null;
[liveTex, draftTex, marksTex, fbTex].forEach((t) => gl.deleteTexture(t));
gl.deleteFramebuffer(fbo);
gl.deleteBuffer(quad);
gl.deleteProgram(scene);
gl.deleteProgram(post);
};
}, [reduce]);
const press = () => {
if (api.current) api.current.toggle();
else setLive((v) => !v);
};
const state = live ? STATES.live : STATES.draft;
const ease = [0.2, 0.9, 0.2, 1] as const;
return (
<section ref={rootRef} className="relative isolate h-[680px] w-full overflow-hidden md:h-[740px]" style={{ backgroundColor: INK, fontFamily: FONT }}>
<style>{`
@keyframes publish-key-lightbox-page-breathe { 0%, 100% { opacity: .7 } 50% { opacity: 1 } }
.publish-key-lightbox-page-glow { animation: publish-key-lightbox-page-breathe 3.3s ease-in-out infinite }
@media (prefers-reduced-motion: reduce) { .publish-key-lightbox-page-glow { animation: none } }
`}</style>
{/* The still: the same picture built from elements. Shown before the renderer starts and wherever it cannot run. */}
<div className={`absolute inset-0 transition-opacity duration-700 ${ready ? "opacity-0" : "opacity-100"}`} style={{ background: "radial-gradient(80% 60% at 62% 60%, #1b1e26 0%, #0f1117 48%, #0B0D12 100%)" }}>
{/* the model of the page */}
<div className="absolute left-1/2 top-[29%] w-[250px] -translate-x-1/2 md:left-[72%] md:top-[15%] md:w-[400px]" style={{ perspective: "1400px" }}>
<div className="relative rounded-[18px] p-[9px] transition-shadow duration-500" style={{ aspectRatio: "4 / 3.08", transform: "rotateY(-17deg) rotateX(7deg)", background: "linear-gradient(160deg, #5b5f68 0%, #2a2d34 30%, #17191e 100%)", boxShadow: live ? "0 0 0 1px rgba(255,255,255,0.08) inset, 0 50px 80px -30px rgba(0,0,0,0.9), 0 0 120px 10px rgba(226,234,255,0.22)" : "0 0 0 1px rgba(255,255,255,0.08) inset, 0 50px 80px -30px rgba(0,0,0,0.9)" }}>
{live ? (
<div className="relative h-full w-full overflow-hidden rounded-[10px]" style={{ backgroundColor: PAPER, boxShadow: "inset 0 0 30px rgba(255,255,255,0.9)" }}>
<div className="absolute inset-x-[4%] top-[5%] flex h-[9%] items-center justify-between rounded-full px-[4%] text-white" style={{ backgroundColor: INK }}>
<span className="text-[10px] font-extrabold tracking-tight md:text-[11px]">{SITE.brand}</span>
<span className="flex gap-2.5 text-[8px] font-medium text-white/85 md:text-[9px]">
{SITE.nav.map((n) => (
<span key={n}>{n}</span>
))}
</span>
</div>
<h3 className="absolute left-[5%] top-[27%] w-[58%] text-[15px] font-extrabold leading-[0.95] tracking-[-0.05em] md:text-[23px]" style={{ color: INK }}>
{SITE.headline.map((l) => (
<span key={l} className="block whitespace-nowrap">
{l}
</span>
))}
</h3>
<p className="absolute left-[5%] top-[50%] w-[52%] text-[6.5px] font-medium leading-snug text-slate-600 md:top-[54%] md:w-[50%] md:text-[9px]">{SITE.sub}</p>
<div className="absolute right-[4%] top-[19%] h-[66%] w-[33%] overflow-hidden rounded-[8px]" style={{ backgroundColor: PHOTO.tone }}>
<img src={PHOTO.src} alt={PHOTO.alt} width={334} height={505} className="h-full w-full object-cover grayscale" />
</div>
<div className="absolute left-[5%] top-[73.5%] flex h-[10%] w-[28%] items-center justify-center rounded-full text-[6.5px] font-bold text-white md:text-[9px]" style={{ backgroundColor: BLUE }}>
{SITE.cta}
</div>
<div className="absolute inset-x-[5%] bottom-[4%] flex justify-between border-t border-slate-900/15 pt-[1.5%] text-[6px] font-semibold uppercase tracking-[0.14em] text-slate-500">
<span>{SITE.foot}</span>
<span>{SITE.brand}</span>
</div>
</div>
) : (
<div className="relative h-full w-full overflow-hidden rounded-[10px] bg-[#23262c]">
<div className="absolute inset-x-[4%] top-[5%] h-[9%] rounded-full border border-dashed border-[#7c818b] bg-[#343841]" />
<div className="absolute left-[5%] top-[29%] h-[8%] w-[50%] rounded bg-[#5b606a]" />
<div className="absolute left-[5%] top-[40%] h-[8%] w-[39%] rounded bg-[#5b606a]" />
<div className="absolute left-[5%] top-[56%] h-[2%] w-[46%] rounded bg-[#454a54]" />
<div className="absolute left-[5%] top-[61%] h-[2%] w-[48%] rounded bg-[#454a54]" />
<div className="absolute right-[4%] top-[19%] h-[66%] w-[33%] rounded-[8px] border border-dashed border-[#7c818b] bg-[#343841]" />
<div className="absolute left-[5%] top-[73.5%] h-[10%] w-[28%] rounded-full border border-dashed border-[#7c818b] bg-[#343841]" />
<div className="absolute inset-x-[5%] bottom-[4%] flex justify-between border-t border-[#7c818b]/60 pt-[1.5%] text-[6px] font-semibold uppercase tracking-[0.2em] text-[#7c818b]">
<span>Draft</span>
<span>Not published</span>
</div>
</div>
)}
</div>
</div>
{/* the key on its plinth, seen from above the front edge */}
<div className="absolute bottom-[15%] left-1/2 h-[150px] w-[200px] -translate-x-1/2 md:bottom-[13%] md:left-[49%] md:h-[230px] md:w-[300px]" style={{ perspective: "900px" }} aria-hidden="true">
<div className="absolute inset-x-0 bottom-0 h-[34%] rounded-b-[14px]" style={{ background: "linear-gradient(180deg, #17191e 0%, #0b0c10 100%)", boxShadow: `0 16px 46px -2px rgba(79,152,251,${live ? 0.75 : 0.35}), 0 2px 0 0 rgba(79,152,251,${live ? 0.95 : 0.5})` }} />
<div className="absolute inset-x-0 top-0 h-[76%] rounded-[26px]" style={{ transform: "rotateX(58deg)", transformOrigin: "50% 100%", background: "linear-gradient(180deg, #23262d 0%, #15171c 100%)", boxShadow: "inset 0 1px 0 rgba(255,255,255,0.12)" }}>
<div className="absolute inset-[14%] rounded-[30px]" style={{ background: "linear-gradient(100deg, #8d9299 0%, #e9ecef 30%, #a9aeb5 62%, #dfe2e6 100%)", boxShadow: "inset 0 0 0 2px rgba(255,255,255,0.55), 0 6px 14px rgba(0,0,0,0.6)" }}>
<div className="publish-key-lightbox-page-glow absolute inset-[12%] rounded-[22px]" style={{ backgroundColor: BLUE, boxShadow: `0 0 26px 6px rgba(79,152,251,${live ? 0.95 : 0.5}), inset 0 0 12px #fff` }} />
<div className="absolute inset-[16.5%] flex items-center justify-center rounded-[18px] transition-transform duration-300" style={{ transform: live ? "translateY(-4px)" : "translateY(-12px)", background: "radial-gradient(90% 90% at 40% 30%, #f4f5f6 0%, #c3c7cc 55%, #8f949b 100%)", boxShadow: "0 12px 0 -1px #6d7279, 0 16px 16px rgba(0,0,0,0.55), inset 0 2px 0 rgba(255,255,255,0.9)" }}>
<svg viewBox="0 0 24 24" className="h-[42%] w-[42%]" fill="none" stroke={BLUE} strokeWidth="3" strokeLinecap="round" strokeLinejoin="round" style={{ filter: "drop-shadow(0 0 5px rgba(79,152,251,0.9))" }}>
<path d="M12 20V5M5.5 11 12 4.5 18.5 11" />
</svg>
</div>
</div>
</div>
</div>
</div>
<canvas ref={canvasRef} aria-hidden="true" className={`absolute inset-0 h-full w-full transition-opacity duration-700 ${ready ? "opacity-100" : "opacity-0"}`} />
{/* Pointer target laid over the key in the picture. The named button below does the same job for keyboards and screen readers. */}
<div
ref={hitRef}
aria-hidden="true"
className={`absolute -translate-x-1/2 -translate-y-1/2 cursor-pointer touch-manipulation select-none rounded-[32%] ${ready ? "" : "hidden"}`}
onPointerDown={(e) => {
e.currentTarget.setPointerCapture(e.pointerId);
api.current?.hold(true);
}}
onPointerUp={() => api.current?.hold(false)}
onPointerCancel={() => api.current?.hold(false)}
/>
<p className="pointer-events-none absolute left-5 top-5 text-[10px] font-semibold uppercase tracking-[0.22em] text-white/45 md:left-10 md:top-9 md:text-[11px]">
One key <span className="mx-1.5 text-white/25">/</span> Draft to live
</p>
<div className="pointer-events-none absolute left-5 top-12 md:left-10 md:top-20 lg:bottom-12 lg:top-auto">
<p className="flex items-center gap-2.5 text-[10px] font-semibold uppercase tracking-[0.22em] text-white/50 md:text-[11px]">
<span className="relative flex h-2 w-2">
<span className="absolute inset-0 rounded-full transition-colors duration-300" style={{ backgroundColor: live ? BLUE : "rgba(255,255,255,0.3)", boxShadow: live ? "0 0 10px 2px rgba(79,152,251,0.9)" : "none" }} />
</span>
{SITE.brand} <span className="text-white/25">/</span> Status
</p>
<div className="relative mt-1 h-[84px] w-[300px] overflow-hidden md:mt-2 md:h-[112px] md:w-[320px] lg:h-[150px] lg:w-[400px]">
<AnimatePresence initial={false} mode="popLayout">
<motion.h2
key={state.word}
initial={reduce ? { opacity: 0 } : { y: "62%", opacity: 0 }}
animate={{ y: "0%", opacity: 1 }}
exit={reduce ? { opacity: 0 } : { y: "-46%", opacity: 0 }}
transition={reduce ? { duration: 0.01 } : { y: { type: "spring", stiffness: 240, damping: 21 }, opacity: { duration: 0.3, ease } }}
className="absolute left-0 top-0 text-[84px] font-extrabold leading-[1] tracking-[-0.06em] text-white md:text-[112px] lg:text-[150px]"
>
{state.word}
</motion.h2>
</AnimatePresence>
</div>
<p className="mt-1 text-[14px] font-medium tracking-tight text-white/60 md:mt-3 md:text-[17px]">{state.line}</p>
</div>
<div className="absolute inset-x-5 bottom-5 flex items-center justify-between gap-4 md:inset-x-auto md:bottom-12 md:right-10 md:flex-col md:items-end md:gap-3">
<span className="text-[10px] font-semibold uppercase tracking-[0.22em] text-white/40 md:text-[11px]">Press the key</span>
<button
type="button"
onClick={press}
aria-pressed={live}
aria-label={live ? "Published. Press to take the page back to draft" : "Draft. Press to publish the page"}
className="flex h-12 items-center gap-2.5 rounded-full pl-5 pr-6 text-[15px] font-bold tracking-tight transition-[transform,background-color,color,box-shadow] duration-300 hover:scale-[1.03] focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-white focus-visible:ring-offset-2 focus-visible:ring-offset-[#0B0D12] active:scale-95 motion-reduce:transition-none"
style={live ? { backgroundColor: "rgba(255,255,255,0.08)", color: "#fff", boxShadow: "inset 0 0 0 1px rgba(255,255,255,0.16)" } : { backgroundColor: BLUE, color: INK, boxShadow: "0 0 28px -2px rgba(79,152,251,0.8), inset 0 1px 0 rgba(255,255,255,0.4)" }}
>
<svg viewBox="0 0 20 20" className={`h-5 w-5 transition-transform duration-300 motion-reduce:transition-none ${live ? "rotate-180" : ""}`} fill="none" stroke="currentColor" strokeWidth="2.2" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true">
<path d="M10 16V4M5 9l5-5 5 5" />
</svg>
{state.action}
</button>
</div>
<p className="sr-only" aria-live="polite">
{SITE.brand} is {live ? "live" : "a draft"}. {state.line}
</p>
</section>
);
}
Install with one command: npx shadcn@latest add https://we.inc/r/ray-marched-aluminium-publish-key-on-a-blue-lit-plinth-that-strikes-a-lightbox-model-of-the-page-from-draft-to-live.json
Geometry. The plinth, collar, key, base and lightbox are signed distance functions marched per pixel in one fragment shader. The key is a rounded square prism with a sphere subtracted from its top to make the dish, and it moves by changing one uniform, so its shadow, the gap of light round it and its image in the floor all follow.
Two textures are painted on offscreen canvases when the component mounts: a dashed plan and the finished page. The shader samples both on the face of the lightbox and shows the finished one below a line that rises from the bottom edge. The lamp level is a separate value, so the print is first seen dimly by room light and then lights from behind.
Yes. `toggle` and `hold` inside the effect are the only places that change state, and `strike` runs when the key reaches its stop. Start your request there, and call the lines that begin the pulse only when the request resolves if you want the page to wait for the server.
Both average seven mirror samples of the softboxes spread along one direction, which stretches the highlight the way fine scratches do. On the collar that direction runs front to back. In the dish of the key it points away from the centre, so the highlight opens into a fan as it does on a part faced on a lathe, and a thin bright lip marks where the cutter stopped.
At most about 1.9 million pixels pass through the marcher, and the internal resolution steps down toward `MIN_SCALE` if frames run long. Floor pixels pay for one extra short march for the mirror image. Rendering stops when the section leaves the viewport or the tab is hidden.
Change `BLUE` in the shader to your colour in linear values, the `BLUE` constant near the top of the file for the pill and the status dot, and the button fill inside `drawLive`. Every glow in the scene is derived from that one shader constant.
Related: Typed Sentence of Blue Light on a Dark Studio Floor That Stands Up as a Ray Marched Homepage with Floating Layers, Publish Button That Fires a Rolled-Up Site up a Glass Pneumatic Tube, Steel Roller Shutter Stencilled Draft That Rattles Up to Show a Lit Shop Window Holding the Live Site.
More we.inc originals or all free UI components. Start for free to have a full site built around it.
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