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| 'rgb'; type Fit = 'contain' | 'cover'; type Kernel = [number, number, number][]; type Rgb = [number, number, number]; export interface DitherVeilProps { src?: string; fit?: Fit; pattern?: Pattern; pixelSize?: number; levels?: number; palette?: Palette; inkColor?: string; paperColor?: string; contrast?: number; brightness?: number; revealRadius?: number; softness?: number; linger?: number; rimColor?: string; rim?: number; reverse?: boolean; wander?: boolean; clickBurst?: boolean; className?: string; style?: CSSProperties; } type Settings = Required>; const DEFAULT_SRC = 'https://images.unsplash.com/photo-1737071371043-761e02b1ef95?q=80&w=1400&auto=format&fit=crop'; const ORDERED: Record = { bayer: 0, noise: 1, lines: 2 }; const KERNELS: Record = { atkinson: [ [1, 0, 1 / 8], [2, 0, 1 / 8], [-1, 1, 1 / 8], [0, 1, 1 / 8], [1, 1, 1 / 8], [0, 2, 1 / 8] ], floyd: [ [1, 0, 7 / 16], [-1, 1, 3 / 16], [0, 1, 5 / 16], [1, 1, 1 / 16] ] }; const MASK_SCALE = 0.5; const MAX_BURSTS = 4; const BURST_SECONDS = 1.2; const HOLD = 1.6; const INTRO_MS = 1100; const hexToRgb = (hex: string): Rgb => { let h = String(hex || '').replace('#', ''); if (h.length === 3) h = h.replace(/./g, c => c + c); const n = parseInt(h.slice(0, 6), 16); return Number.isNaN(n) ? 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[1, 1 / ratio] : [ratio, 1]; }; const wanderAt = (t: number, w: number, h: number): [number, number] => [ w * (0.5 + 0.33 * Math.sin(t * 0.53) + 0.08 * Math.sin(t * 1.31 + 0.6)), h * (0.5 + 0.28 * Math.sin(t * 0.71 + 1.1) + 0.07 * Math.cos(t * 1.57)) ]; const measureEdge = (context: CanvasRenderingContext2D, image: HTMLImageElement): { matte: Rgb; plain: boolean } => { const size = 32; context.canvas.width = size; context.canvas.height = size; context.drawImage(image, 0, 0, size, size); const data = context.getImageData(0, 0, size, size).data; const sum = [0, 0, 0]; const squares = [0, 0, 0]; let count = 0; for (let y = 0; y < size; y++) { for (let x = 0; x < size; x++) { if (x > 0 && y > 0 && x < size - 1 && y < size - 1) continue; for (let c = 0; c < 3; c++) { const v = data[(y * size + x) * 4 + c] / 255; sum[c] += v; squares[c] += v * v; } count++; } } const matte: Rgb = [sum[0] / count, sum[1] / count, sum[2] / count]; const spread = matte.reduce((total, mean, c) => total + Math.sqrt(Math.max(0, squares[c] / count - mean * mean)), 0) / 3; return { matte, plain: spread < 0.06 }; }; let blueNoise: Uint8Array | null = null; const getBlueNoise = (): Uint8Array => { if (blueNoise) return blueNoise; const size = 64; const n = size * size; const wrap = size - 1; const taps: number[] = []; for (let dy = -6; dy <= 6; dy++) { for (let dx = -6; dx <= 6; dx++) taps.push(dx, dy, Math.exp(-(dx * dx + dy * dy) / 4.5)); } const energy = new Float32Array(n); const on = new Uint8Array(n); const splat = (i: number, sign: number) => { const x = i % size; const y = (i - x) / size; for (let k = 0; k < taps.length; k += 3) { energy[((y + taps[k + 1]) & wrap) * size + ((x + taps[k]) & wrap)] += sign * taps[k + 2]; } }; const find = (state: number, highest: boolean) => { let best = 0; let value = highest ? -Infinity : Infinity; for (let i = 0; i < n; i++) { if (on[i] !== state) continue; if (highest ? energy[i] > value : energy[i] < value) { value = energy[i]; best = i; } } return best; }; let seed = 7; const random = () => { seed = (seed * 16807) % 2147483647; return seed / 2147483647; }; const initial = Math.round(n * 0.1); for (let placed = 0; placed < initial; ) { const i = Math.floor(random() * n); if (on[i]) continue; on[i] = 1; splat(i, 1); placed++; } for (let guard = 0; guard < n; guard++) { const cluster = find(1, true); on[cluster] = 0; splat(cluster, -1); const gap = find(0, false); on[gap] = 1; splat(gap, 1); if (gap === cluster) break; } const seedOn = on.slice(); const seedEnergy = energy.slice(); const rank = new Uint16Array(n); for (let r = initial - 1; r >= 0; r--) { const cluster = find(1, true); on[cluster] = 0; splat(cluster, -1); rank[cluster] = r; } on.set(seedOn); energy.set(seedEnergy); for (let r = initial; r < n; r++) { const gap = find(0, false); on[gap] = 1; splat(gap, 1); rank[gap] = r; } const data = new Uint8Array(n * 4); for (let i = 0; i < n; i++) { const v = Math.floor((rank[i] / n) * 256); data[i * 4] = v; data[i * 4 + 1] = v; data[i * 4 + 2] = v; data[i * 4 + 3] = 255; } blueNoise = data; return data; }; const diffuse = ( pixels: Uint8ClampedArray, cols: number, rows: number, kernel: Kernel, levels: number, rgb: boolean, grade: (v: number) => number ): Uint8Array => { const channels = rgb ? 3 : 1; const values = new Float32Array(cols * rows * channels); for (let i = 0; i < cols * rows; i++) { const r = pixels[i * 4] / 255; const g = pixels[i * 4 + 1] / 255; const b = pixels[i * 4 + 2] / 255; if (rgb) { values[i * 3] = grade(r); values[i * 3 + 1] = grade(g); values[i * 3 + 2] = grade(b); } else { values[i] = grade(0.2126 * r + 0.7152 * g + 0.0722 * b); } } const steps = levels - 1; const out = new Uint8Array(cols * rows * 4); for (let y = 0; y < rows; y++) { const dir = y & 1 ? -1 : 1; for (let i = 0; i < cols; i++) { const x = dir > 0 ? i : cols - 1 - i; const p = y * cols + x; for (let c = 0; c < channels; c++) { const old = values[p * channels + c]; const q = Math.min(steps, Math.max(0, Math.round(old * steps))) / steps; const err = old - q; const byte = Math.round(q * 255); if (rgb) out[p * 4 + c] = byte; else out[p * 4] = out[p * 4 + 1] = out[p * 4 + 2] = byte; for (let k = 0; k < kernel.length; k++) { const nx = x + kernel[k][0] * dir; const ny = y + kernel[k][1]; if (nx < 0 || nx >= cols || ny >= rows) continue; values[(ny * cols + nx) * channels + c] += err * kernel[k][2]; } } out[p * 4 + 3] = 255; } } return out; }; const vertex = `#version 300 es in vec2 position; in vec2 uv; out vec2 vUv; void main() { vUv = uv; gl_Position = vec4(position, 0.0, 1.0); } `; const maskFragment = `#version 300 es precision highp float; uniform sampler2D tPrev; uniform vec2 uSize; uniform vec2 uFrom; uniform vec2 uTo; uniform float uRadius; uniform float uSoftness; uniform float uStrength; uniform float uFade; uniform float uHold; in vec2 vUv; out vec4 fragColor; float strokeDistance(vec2 p, vec2 a, vec2 b) { vec2 ab = b - a; float h = clamp(dot(p - a, ab) / max(dot(ab, ab), 0.0001), 0.0, 1.0); return length(p - a - ab * h); } void main() { vec2 p = vec2(vUv.x, 1.0 - vUv.y) * uSize; float trail = max(texture(tPrev, vUv).r - uFade, 0.0); float band = max(uRadius * uSoftness, 1.0) * uHold; float d = strokeDistance(p, uFrom, uTo); trail = max(trail, clamp((uRadius - d) / band, 0.0, 1.0) * uStrength); fragColor = vec4(trail, 0.0, 0.0, 1.0); } `; const viewFragment = `#version 300 es precision highp float; precision highp int; uniform sampler2D tImage; uniform sampler2D tMask; uniform sampler2D tNoise; uniform sampler2D tDiffused; uniform vec2 uResolution; uniform vec2 uCover; uniform float uLod; uniform float uCell; uniform int uPattern; uniform int uPalette; uniform float uLevels; uniform vec3 uInk; uniform vec3 uPaper; uniform vec3 uRimColor; uniform float uRim; uniform float uContrast; uniform float uBrightness; uniform float uReverse; uniform float uIntro; uniform float uHold; uniform vec3 uMatte; uniform float uKey; uniform vec2 uSize; uniform vec4 uBursts[4]; uniform float uBurstWidth; in vec2 vUv; out vec4 fragColor; float bayer(vec2 cell) { ivec2 p = ivec2(mod(cell, 8.0)); int v = p.x ^ p.y; int m = ((v & 1) << 5) | ((p.y & 1) << 4) | ((v & 2) << 2) | ((p.y & 2) << 1) | ((v & 4) >> 1) | ((p.y & 4) >> 2); return (float(m) + 0.5) / 64.0; } float blueNoise(vec2 cell) { return (texelFetch(tNoise, ivec2(mod(cell, 64.0)), 0).r * 255.0 + 0.5) / 256.0; } float engraving(vec2 cell) { float period = 6.0; float f = (mod(cell.x + cell.y, period) + 0.5) / period; return clamp(abs(f * 2.0 - 1.0) + (bayer(cell) - 0.5) * (2.0 / period), 0.0, 1.0); } vec2 imageUv(vec2 uv) { return (uv - 0.5) * uCover + 0.5; } float within(vec2 p) { vec2 s = step(vec2(0.0), p) * step(p, vec2(1.0)); return s.x * s.y; } vec3 grade(vec3 c) { return pow(clamp((c - 0.5) * uContrast + 0.5 + uBrightness, 0.0, 1.0), vec3(1.6)); } float shockwave(vec2 p) { float value = 0.0; for (int i = 0; i < 4; i++) { vec4 burst = uBursts[i]; if (burst.w <= 0.0) continue; float offset = distance(p, burst.xy) - burst.z; float edge = offset > 0.0 ? offset / (uBurstWidth * 0.35) : -offset / uBurstWidth; value = max(value, clamp(1.0 - edge, 0.0, 1.0) * burst.w); } return value; } vec3 toned(vec3 c) { return uPalette == 1 ? grade(c) : grade(vec3(dot(c, vec3(0.2126, 0.7152, 0.0722)))); } vec3 quantize(vec3 v, float t) { float steps = max(uLevels - 1.0, 1.0); vec3 s = v * steps; vec3 base = floor(s); return min(base + step(vec3(t), s - base), vec3(steps)) / steps; } void main() { vec2 px = vec2(gl_FragCoord.x, uResolution.y - gl_FragCoord.y); vec2 cell = floor(px / uCell); vec2 center = (cell + 0.5) * uCell; vec2 cellUv = vec2(center.x / uResolution.x, 1.0 - center.y / uResolution.y); vec2 sampleUv = imageUv(cellUv); float framed = within(sampleUv); vec3 level; if (uPattern == 3) { level = texelFetch(tDiffused, ivec2(cell), 0).rgb; } else { vec3 c = mix(uMatte, textureLod(tImage, sampleUv, uLod).rgb, framed); float t = uPattern == 1 ? blueNoise(cell) : (uPattern == 2 ? engraving(cell) : bayer(cell)); level = quantize(toned(c), t); } vec3 color = mix(uInk, mix(uInk, uPaper, level), max(framed, uKey)); vec3 backdrop = mix(uInk, uPaper, toned(uMatte)); vec2 photoUv = imageUv(vUv); vec3 raw = texture(tImage, photoUv).rgb; float plain = uKey * (1.0 - smoothstep(0.05, 0.22, distance(raw, uMatte))); vec3 photo = mix(mix(uInk, backdrop, uKey), mix(raw, backdrop, plain), within(photoUv)); vec2 point = vec2(cellUv.x, 1.0 - cellUv.y) * uSize; float mask = max(clamp(texture(tMask, cellUv).r * uHold, 0.0, 1.0), shockwave(point)); float shown = mix(mask, 1.0 - mask, uReverse); float order = bayer(cell.yx); float low = order * (1.0 - uRim); color = mix(color, uRimColor, step(low, shown) * step(0.001, uRim)); color = mix(color, photo, step(low + uRim, shown)); vec2 aspect = vec2(uResolution.x / uResolution.y, 1.0); float spread = length((cellUv - 0.5) * aspect) / length(aspect * 0.5); float appear = step(spread * 0.72 + bayer(cell + vec2(3.0, 5.0)) * 0.28, uIntro * 1.001); fragColor = vec4(mix(uInk, color, appear), 1.0); } `; const DitherVeil = ({ src = DEFAULT_SRC, fit = 'contain', pattern = 'floyd', pixelSize = 2, levels = 2, palette = 'duotone', inkColor = '#120f17', paperColor = '#f4f1ea', contrast = 1.15, brightness = 0, revealRadius = 200, softness = 0.6, linger = 1, rimColor = '#a78bfa', rim = 0, reverse = false, wander = false, clickBurst = true, className = '', style }: DitherVeilProps) => { const containerRef = useRef(null); const settingsRef = useRef(null); const wakeRef = useRef<() => void>(() => {}); useEffect(() => { settingsRef.current = { fit, pattern, pixelSize, levels, palette, inkColor, paperColor, contrast, brightness, revealRadius, softness, linger, rimColor, rim, reverse, wander, clickBurst }; wakeRef.current(); }); useEffect(() => { const container = containerRef.current; if (!container) return undefined; const reducedMotion = window.matchMedia?.('(prefers-reduced-motion: reduce)').matches; const renderer = new Renderer({ dpr: Math.min(window.devicePixelRatio || 1, 2), alpha: false, antialias: false }); const gl = renderer.gl; const canvas = gl.canvas; canvas.style.display = 'block'; canvas.style.width = '100%'; canvas.style.height = '100%'; container.appendChild(canvas); const gl2 = gl as WebGL2RenderingContext; const floatMask = renderer.isWebgl2 && !!renderer.getExtension('EXT_color_buffer_float'); const geometry = new Triangle(gl); const dataTexture = () => new Texture(gl, { image: new Uint8Array(4), width: 1, height: 1, generateMipmaps: false, flipY: false, minFilter: gl.NEAREST, magFilter: gl.NEAREST }); const imageTexture = new Texture(gl, { minFilter: gl.LINEAR_MIPMAP_LINEAR, magFilter: gl.LINEAR }); const noiseTexture = dataTexture(); const diffusedTexture = dataTexture(); const createMask = (w: number, h: number) => new RenderTarget(gl, { width: w, height: h, depth: false, type: floatMask ? gl2.HALF_FLOAT : gl.UNSIGNED_BYTE, internalFormat: floatMask ? gl2.RGBA16F : gl.RGBA, minFilter: gl.LINEAR, magFilter: gl.LINEAR }); const destroyMask = (target: RenderTarget) => { gl.deleteFramebuffer(target.buffer); gl.deleteTexture(target.texture.texture); }; let masks = [createMask(2, 2), createMask(2, 2)]; const maskUniforms = { tPrev: { value: masks[0].texture }, uSize: { value: [1, 1] }, uFrom: { value: [0, 0] }, uTo: { value: [0, 0] }, uRadius: { value: 1 }, uSoftness: { value: 0.5 }, uStrength: { value: 0 }, uFade: { value: 1 }, uHold: { value: HOLD } }; const viewUniforms = { tImage: { value: imageTexture }, tMask: { value: masks[0].texture }, tNoise: { value: noiseTexture }, tDiffused: { value: diffusedTexture }, uResolution: { value: [1, 1] }, uCover: { value: [1, 1] }, uLod: { value: 0 }, uCell: { value: 3 }, uPattern: { value: 0 }, uPalette: { value: 0 }, uLevels: { value: 2 }, uInk: { value: [0, 0, 0] }, uPaper: { value: [1, 1, 1] }, uRimColor: { value: [1, 1, 1] }, uRim: { value: 0 }, uContrast: { value: 1 }, uBrightness: { value: 0 }, uReverse: { value: 0 }, uIntro: { value: 0 }, uHold: { value: HOLD }, uMatte: { value: [0, 0, 0] }, uKey: { value: 0 }, uSize: { value: [1, 1] }, uBursts: { value: Array.from({ length: MAX_BURSTS * 4 }, () => 0) }, uBurstWidth: { value: 60 } }; const program = (fragment: string, uniforms: Record) => new Program(gl, { vertex, fragment, uniforms, depthTest: false, depthWrite: false }); const maskMesh = new Mesh(gl, { geometry, program: program(maskFragment, maskUniforms) }); const viewMesh = new Mesh(gl, { geometry, program: program(viewFragment, viewUniforms) }); const sampler = document.createElement('canvas'); const samplerContext = sampler.getContext('2d', { willReadFrequently: true }); let image: HTMLImageElement | null = null; let introStart = 0; let diffusedKey = ''; let diffusionBlocked = false; let width = 1; let height = 1; let visible = true; let raf = 0; let last = performance.now(); let trailUntil = 0; let presence = 0; let drift = 0; const pointer = { x: 0, y: 0, inside: false, fresh: true, placed: false }; const brush = { x: 0, y: 0, px: 0, py: 0 }; const bursts: { x: number; y: number; start: number }[] = []; const layout = () => { width = Math.max(1, container.clientWidth); height = Math.max(1, container.clientHeight); renderer.setSize(width, height); viewUniforms.uResolution.value = [canvas.width, canvas.height]; maskUniforms.uSize.value = [width, height]; viewUniforms.uSize.value = [width, height]; const mw = Math.max(2, Math.round(width * MASK_SCALE)); const mh = Math.max(2, Math.round(height * MASK_SCALE)); if (mw !== masks[0].width || mh !== masks[0].height) { masks.forEach(destroyMask); masks = [createMask(mw, mh), createMask(mw, mh)]; } if (!pointer.placed) { pointer.x = width / 2; pointer.y = height / 2; } }; const updateDiffusion = (cell: number, s: Settings) => { if (!image || !samplerContext) return; const cols = Math.ceil(canvas.width / cell); const rows = Math.ceil(canvas.height / cell); const key = [ s.pattern, s.levels, s.palette, s.contrast, s.brightness, s.fit, cols, rows, canvas.width, canvas.height ].join('|'); if (key === diffusedKey) return; diffusedKey = key; const [cx, cy] = viewUniforms.uCover.value; const iw = image.naturalWidth; const ih = image.naturalHeight; sampler.width = cols; sampler.height = rows; samplerContext.imageSmoothingEnabled = true; samplerContext.imageSmoothingQuality = 'high'; const [mr, mg, mb] = viewUniforms.uMatte.value; samplerContext.fillStyle = `rgb(${mr * 255}, ${mg * 255}, ${mb * 255})`; samplerContext.fillRect(0, 0, cols, rows); const sx = (0.5 - 0.5 * cx) * iw; const sy = (0.5 - 0.5 * cy) * ih; const sw = ((cols * cell) / canvas.width) * cx * iw; const sh = ((rows * cell) / canvas.height) * cy * ih; const x0 = Math.max(sx, 0); const y0 = Math.max(sy, 0); const x1 = Math.min(sx + sw, iw); const y1 = Math.min(sy + sh, ih); if (x1 > x0 && y1 > y0) { samplerContext.drawImage( image, x0, y0, x1 - x0, y1 - y0, ((x0 - sx) / sw) * cols, ((y0 - sy) / sh) * rows, ((x1 - x0) / sw) * cols, ((y1 - y0) / sh) * rows ); } const grade = (v: number) => Math.pow(Math.min(1, Math.max(0, (v - 0.5) * s.contrast + 0.5 + s.brightness)), 1.6); const pixels = samplerContext.getImageData(0, 0, cols, rows).data; diffusedTexture.image = diffuse(pixels, cols, rows, KERNELS[s.pattern], s.levels, s.palette === 'rgb', grade); diffusedTexture.width = cols; diffusedTexture.height = rows; diffusedTexture.needsUpdate = true; }; const frame = (now: number) => { raf = 0; const s = settingsRef.current; if (!s) return; const dt = Math.min(0.05, Math.max(0, (now - last) / 1000)); last = now; const wanderOn = s.wander && !reducedMotion; let targetX = pointer.x; let targetY = pointer.y; if (!pointer.inside && wanderOn) { drift = Math.min(1, drift + dt / 1.2); const [wx, wy] = wanderAt(now / 1000, width, height); const k = drift * drift * (3 - 2 * drift); targetX += (wx - targetX) * k; targetY += (wy - targetY) * k; } else { drift = 0; } presence += ((pointer.inside || wanderOn ? 1 : 0) - presence) * (1 - Math.exp(-dt / 0.16)); if (pointer.fresh) { brush.x = brush.px = targetX; brush.y = brush.py = targetY; pointer.fresh = false; } else { const follow = 1 - Math.exp(-dt / 0.035); brush.x += (targetX - brush.x) * follow; brush.y += (targetY - brush.y) * follow; } const burstData = viewUniforms.uBursts.value; burstData.fill(0); for (let i = bursts.length - 1; i >= 0; i--) { if ((now - bursts[i].start) / 1000 >= BURST_SECONDS) bursts.splice(i, 1); } bursts.forEach((b, i) => { const k = Math.max(0, (now - b.start) / 1000 / BURST_SECONDS); const reach = Math.hypot(Math.max(b.x, width - b.x), Math.max(b.y, height - b.y)) + viewUniforms.uBurstWidth.value; burstData[i * 4] = b.x; burstData[i * 4 + 1] = b.y; burstData[i * 4 + 2] = reach * Math.sin((k * Math.PI) / 2); burstData[i * 4 + 3] = 1 - k * k * k; }); if (presence > 0.002) trailUntil = now + s.linger * 1000 + 150; const minFade = floatMask ? 0 : 1.5 / 255; const fade = s.linger > 0 ? dt / s.linger : 1; maskUniforms.tPrev.value = masks[0].texture; maskUniforms.uFrom.value = [brush.px, brush.py]; maskUniforms.uTo.value = [brush.x, brush.y]; maskUniforms.uRadius.value = s.revealRadius * (0.45 + 0.55 * presence); maskUniforms.uSoftness.value = s.softness; maskUniforms.uStrength.value = presence; maskUniforms.uFade.value = Math.max(fade, minFade); viewUniforms.uBurstWidth.value = Math.max(60, s.revealRadius * 0.9); renderer.render({ scene: maskMesh, target: masks[1] }); masks.reverse(); brush.px = brush.x; brush.py = brush.y; const cell = Math.max(1, Math.round(s.pixelSize * renderer.dpr)); if (image) { viewUniforms.uCover.value = fitScale( canvas.width, canvas.height, image.naturalWidth, image.naturalHeight, s.fit === 'contain' ); } let patternIndex = ORDERED[s.pattern] ?? 0; if (KERNELS[s.pattern]) { patternIndex = 0; if (image && !diffusionBlocked) { try { updateDiffusion(cell, s); patternIndex = 3; } catch { diffusionBlocked = true; } } } if (patternIndex === 1 && noiseTexture.width !== 64) { noiseTexture.image = getBlueNoise(); noiseTexture.width = 64; noiseTexture.height = 64; noiseTexture.needsUpdate = true; } const texelsPerPixel = image ? (viewUniforms.uCover.value[0] * image.naturalWidth) / canvas.width : 1; viewUniforms.tMask.value = masks[0].texture; viewUniforms.uCell.value = cell; viewUniforms.uLod.value = Math.log2(Math.max(cell * texelsPerPixel, 1)); viewUniforms.uPattern.value = patternIndex; viewUniforms.uPalette.value = s.palette === 'rgb' ? 1 : 0; viewUniforms.uLevels.value = Math.max(2, Math.round(s.levels)); viewUniforms.uInk.value = hexToRgb(s.inkColor); viewUniforms.uPaper.value = hexToRgb(s.paperColor); viewUniforms.uRimColor.value = hexToRgb(s.rimColor); viewUniforms.uRim.value = Math.min(Math.max(s.rim, 0), 0.95); viewUniforms.uContrast.value = s.contrast; viewUniforms.uBrightness.value = s.brightness; viewUniforms.uReverse.value = s.reverse ? 1 : 0; const intro = image ? Math.min(1, (now - introStart) / INTRO_MS) : 0; viewUniforms.uIntro.value = 1 - Math.pow(1 - intro, 2); renderer.render({ scene: viewMesh }); const busy = pointer.inside || wanderOn || presence > 0.002 || bursts.length > 0 || now < trailUntil || (image && intro < 1); if (busy && visible) raf = requestAnimationFrame(frame); }; const wake = () => { if (raf || !visible) return; last = performance.now(); raf = requestAnimationFrame(frame); }; wakeRef.current = wake; const img = new Image(); img.crossOrigin = 'anonymous'; img.decoding = 'async'; img.onload = () => { image = img; imageTexture.image = img; try { if (samplerContext) { const edge = measureEdge(samplerContext, img); viewUniforms.uMatte.value = edge.matte; viewUniforms.uKey.value = edge.plain ? 1 : 0; } } catch {} introStart = performance.now(); wake(); }; img.src = src; const locate = (e: PointerEvent) => { const rect = container.getBoundingClientRect(); pointer.x = e.clientX - rect.left; pointer.y = e.clientY - rect.top; pointer.placed = true; }; const onMove = (e: PointerEvent) => { locate(e); if (!pointer.inside) { pointer.inside = true; pointer.fresh = true; } wake(); }; const onLeave = () => { pointer.inside = false; wake(); }; const onDown = (e: PointerEvent) => { onMove(e); if (!settingsRef.current?.clickBurst || (e.pointerType === 'mouse' && e.button !== 0)) return; bursts.push({ x: pointer.x, y: pointer.y, start: performance.now() }); if (bursts.length > MAX_BURSTS) bursts.shift(); }; container.addEventListener('pointermove', onMove, { passive: true }); container.addEventListener('pointerenter', onMove, { passive: true }); container.addEventListener('pointerdown', onDown, { passive: true }); container.addEventListener('pointerleave', onLeave, { passive: true }); container.addEventListener('pointercancel', onLeave, { passive: true }); const resizeObserver = new ResizeObserver(() => { layout(); wake(); }); resizeObserver.observe(container); const intersectionObserver = new IntersectionObserver(([entry]) => { visible = entry.isIntersecting; wake(); }); intersectionObserver.observe(container); layout(); wake(); return () => { cancelAnimationFrame(raf); wakeRef.current = () => {}; resizeObserver.disconnect(); intersectionObserver.disconnect(); img.onload = null; container.removeEventListener('pointermove', onMove); container.removeEventListener('pointerenter', onMove); container.removeEventListener('pointerdown', onDown); container.removeEventListener('pointerleave', onLeave); container.removeEventListener('pointercancel', onLeave); gl.getExtension('WEBGL_lose_context')?.loseContext(); if (canvas.parentNode) canvas.parentNode.removeChild(canvas); }; }, [src]); return (

); }; export default DitherVeil;43:oa,10c:T6921,43:o6921,Or if you want it as css import { useEffect, useRef } from 'react'; import type { CSSProperties } from 'react'; import { Renderer, Program, Mesh, Triangle, Texture, RenderTarget } from 'ogl'; import './DitherVeil.css'; type Pattern = 'bayer' | 'noise' | 'atkinson' | 'floyd' | 'lines'; type Palette = 'duotone' | 'rgb'; type Fit = 'contain' | 'cover'; type Kernel = [number, number, number][]; type Rgb = [number, number, number]; export interface DitherVeilProps { src?: string; fit?: Fit; pattern?: Pattern; pixelSize?: number; levels?: number; palette?: Palette; inkColor?: string; paperColor?: string; contrast?: number; brightness?: number; revealRadius?: number; softness?: number; linger?: number; rimColor?: string; rim?: number; reverse?: boolean; wander?: boolean; clickBurst?: boolean; className?: string; style?: CSSProperties; } type Settings = Required>; const DEFAULT_SRC = 'https://images.unsplash.com/photo-1737071371043-761e02b1ef95?q=80&w=1400&auto=format&fit=crop'; const ORDERED: Record = { bayer: 0, noise: 1, lines: 2 }; const KERNELS: Record = { atkinson: [ [1, 0, 1 / 8], [2, 0, 1 / 8], [-1, 1, 1 / 8], [0, 1, 1 / 8], [1, 1, 1 / 8], [0, 2, 1 / 8] ], floyd: [ [1, 0, 7 / 16], [-1, 1, 3 / 16], [0, 1, 5 / 16], [1, 1, 1 / 16] ] }; const MASK_SCALE = 0.5; const MAX_BURSTS = 4; const BURST_SECONDS = 1.2; const HOLD = 1.6; const INTRO_MS = 1100; const hexToRgb = (hex: string): Rgb => { let h = String(hex || '').replace('#', ''); if (h.length === 3) h = h.replace(/./g, c => c + c); const n = parseInt(h.slice(0, 6), 16); return Number.isNaN(n) ? [0, 0, 0] : [((n >> 16) & 255) / 255, ((n >> 8) & 255) / 255, (n & 255) / 255]; }; const fitScale = (w: number, h: number, iw: number, ih: number, contain: boolean): [number, number] => { const ratio = w / h / (iw / ih); if (contain) return ratio > 1 ? [ratio, 1] : [1, 1 / ratio]; return ratio > 1 ? [1, 1 / ratio] : [ratio, 1]; }; const wanderAt = (t: number, w: number, h: number): [number, number] => [ w * (0.5 + 0.33 * Math.sin(t * 0.53) + 0.08 * Math.sin(t * 1.31 + 0.6)), h * (0.5 + 0.28 * Math.sin(t * 0.71 + 1.1) + 0.07 * Math.cos(t * 1.57)) ]; const measureEdge = (context: CanvasRenderingContext2D, image: HTMLImageElement): { matte: Rgb; plain: boolean } => { const size = 32; context.canvas.width = size; context.canvas.height = size; context.drawImage(image, 0, 0, size, size); const data = context.getImageData(0, 0, size, size).data; const sum = [0, 0, 0]; const squares = [0, 0, 0]; let count = 0; for (let y = 0; y < size; y++) { for (let x = 0; x < size; x++) { if (x > 0 && y > 0 && x < size - 1 && y < size - 1) continue; for (let c = 0; c < 3; c++) { const v = data[(y * size + x) * 4 + c] / 255; sum[c] += v; squares[c] += v * v; } count++; } } const matte: Rgb = [sum[0] / count, sum[1] / count, sum[2] / count]; const spread = matte.reduce((total, mean, c) => total + Math.sqrt(Math.max(0, squares[c] / count - mean * mean)), 0) / 3; return { matte, plain: spread < 0.06 }; }; let blueNoise: Uint8Array | null = null; const getBlueNoise = (): Uint8Array => { if (blueNoise) return blueNoise; const size = 64; const n = size * size; const wrap = size - 1; const taps: number[] = []; for (let dy = -6; dy <= 6; dy++) { for (let dx = -6; dx <= 6; dx++) taps.push(dx, dy, Math.exp(-(dx * dx + dy * dy) / 4.5)); } const energy = new Float32Array(n); const on = new Uint8Array(n); const splat = (i: number, sign: number) => { const x = i % size; const y = (i - x) / size; for (let k = 0; k < taps.length; k += 3) { energy[((y + taps[k + 1]) & wrap) * size + ((x + taps[k]) & wrap)] += sign * taps[k + 2]; } }; const find = (state: number, highest: boolean) => { let best = 0; let value = highest ? -Infinity : Infinity; for (let i = 0; i < n; i++) { if (on[i] !== state) continue; if (highest ? energy[i] > value : energy[i] < value) { value = energy[i]; best = i; } } return best; }; let seed = 7; const random = () => { seed = (seed * 16807) % 2147483647; return seed / 2147483647; }; const initial = Math.round(n * 0.1); for (let placed = 0; placed < initial; ) { const i = Math.floor(random() * n); if (on[i]) continue; on[i] = 1; splat(i, 1); placed++; } for (let guard = 0; guard < n; guard++) { const cluster = find(1, true); on[cluster] = 0; splat(cluster, -1); const gap = find(0, false); on[gap] = 1; splat(gap, 1); if (gap === cluster) break; } const seedOn = on.slice(); const seedEnergy = energy.slice(); const rank = new Uint16Array(n); for (let r = initial - 1; r >= 0; r--) { const cluster = find(1, true); on[cluster] = 0; splat(cluster, -1); rank[cluster] = r; } on.set(seedOn); energy.set(seedEnergy); for (let r = initial; r < n; r++) { const gap = find(0, false); on[gap] = 1; splat(gap, 1); rank[gap] = r; } const data = new Uint8Array(n * 4); for (let i = 0; i < n; i++) { const v = Math.floor((rank[i] / n) * 256); data[i * 4] = v; data[i * 4 + 1] = v; data[i * 4 + 2] = v; data[i * 4 + 3] = 255; } blueNoise = data; return data; }; const diffuse = ( pixels: Uint8ClampedArray, cols: number, rows: number, kernel: Kernel, levels: number, rgb: boolean, grade: (v: number) => number ): Uint8Array => { const channels = rgb ? 3 : 1; const values = new Float32Array(cols * rows * channels); for (let i = 0; i < cols * rows; i++) { const r = pixels[i * 4] / 255; const g = pixels[i * 4 + 1] / 255; const b = pixels[i * 4 + 2] / 255; if (rgb) { values[i * 3] = grade(r); values[i * 3 + 1] = grade(g); values[i * 3 + 2] = grade(b); } else { values[i] = grade(0.2126 * r + 0.7152 * g + 0.0722 * b); } } const steps = levels - 1; const out = new Uint8Array(cols * rows * 4); for (let y = 0; y < rows; y++) { const dir = y & 1 ? -1 : 1; for (let i = 0; i < cols; i++) { const x = dir > 0 ? i : cols - 1 - i; const p = y * cols + x; for (let c = 0; c < channels; c++) { const old = values[p * channels + c]; const q = Math.min(steps, Math.max(0, Math.round(old * steps))) / steps; const err = old - q; const byte = Math.round(q * 255); if (rgb) out[p * 4 + c] = byte; else out[p * 4] = out[p * 4 + 1] = out[p * 4 + 2] = byte; for (let k = 0; k < kernel.length; k++) { const nx = x + kernel[k][0] * dir; const ny = y + kernel[k][1]; if (nx < 0 || nx >= cols || ny >= rows) continue; values[(ny * cols + nx) * channels + c] += err * kernel[k][2]; } } out[p * 4 + 3] = 255; } } return out; }; const vertex = `#version 300 es in vec2 position; in vec2 uv; out vec2 vUv; void main() { vUv = uv; gl_Position = vec4(position, 0.0, 1.0); } `; const maskFragment = `#version 300 es precision highp float; uniform sampler2D tPrev; uniform vec2 uSize; uniform vec2 uFrom; uniform vec2 uTo; uniform float uRadius; uniform float uSoftness; uniform float uStrength; uniform float uFade; uniform float uHold; in vec2 vUv; out vec4 fragColor; float strokeDistance(vec2 p, vec2 a, vec2 b) { vec2 ab = b - a; float h = clamp(dot(p - a, ab) / max(dot(ab, ab), 0.0001), 0.0, 1.0); return length(p - a - ab * h); } void main() { vec2 p = vec2(vUv.x, 1.0 - vUv.y) * uSize; float trail = max(texture(tPrev, vUv).r - uFade, 0.0); float band = max(uRadius * uSoftness, 1.0) * uHold; float d = strokeDistance(p, uFrom, uTo); trail = max(trail, clamp((uRadius - d) / band, 0.0, 1.0) * uStrength); fragColor = vec4(trail, 0.0, 0.0, 1.0); } `; const viewFragment = `#version 300 es precision highp float; precision highp int; uniform sampler2D tImage; uniform sampler2D tMask; uniform sampler2D tNoise; uniform sampler2D tDiffused; uniform vec2 uResolution; uniform vec2 uCover; uniform float uLod; uniform float uCell; uniform int uPattern; uniform int uPalette; uniform float uLevels; uniform vec3 uInk; uniform vec3 uPaper; uniform vec3 uRimColor; uniform float uRim; uniform float uContrast; uniform float uBrightness; uniform float uReverse; uniform float uIntro; uniform float uHold; uniform vec3 uMatte; uniform float uKey; uniform vec2 uSize; uniform vec4 uBursts[4]; uniform float uBurstWidth; in vec2 vUv; out vec4 fragColor; float bayer(vec2 cell) { ivec2 p = ivec2(mod(cell, 8.0)); int v = p.x ^ p.y; int m = ((v & 1) << 5) | ((p.y & 1) << 4) | ((v & 2) << 2) | ((p.y & 2) << 1) | ((v & 4) >> 1) | ((p.y & 4) >> 2); return (float(m) + 0.5) / 64.0; } float blueNoise(vec2 cell) { return (texelFetch(tNoise, ivec2(mod(cell, 64.0)), 0).r * 255.0 + 0.5) / 256.0; } float engraving(vec2 cell) { float period = 6.0; float f = (mod(cell.x + cell.y, period) + 0.5) / period; return clamp(abs(f * 2.0 - 1.0) + (bayer(cell) - 0.5) * (2.0 / period), 0.0, 1.0); } vec2 imageUv(vec2 uv) { return (uv - 0.5) * uCover + 0.5; } float within(vec2 p) { vec2 s = step(vec2(0.0), p) * step(p, vec2(1.0)); return s.x * s.y; } vec3 grade(vec3 c) { return pow(clamp((c - 0.5) * uContrast + 0.5 + uBrightness, 0.0, 1.0), vec3(1.6)); } float shockwave(vec2 p) { float value = 0.0; for (int i = 0; i < 4; i++) { vec4 burst = uBursts[i]; if (burst.w <= 0.0) continue; float offset = distance(p, burst.xy) - burst.z; float edge = offset > 0.0 ? offset / (uBurstWidth * 0.35) : -offset / uBurstWidth; value = max(value, clamp(1.0 - edge, 0.0, 1.0) * burst.w); } return value; } vec3 toned(vec3 c) { return uPalette == 1 ? grade(c) : grade(vec3(dot(c, vec3(0.2126, 0.7152, 0.0722)))); } vec3 quantize(vec3 v, float t) { float steps = max(uLevels - 1.0, 1.0); vec3 s = v * steps; vec3 base = floor(s); return min(base + step(vec3(t), s - base), vec3(steps)) / steps; } void main() { vec2 px = vec2(gl_FragCoord.x, uResolution.y - gl_FragCoord.y); vec2 cell = floor(px / uCell); vec2 center = (cell + 0.5) * uCell; vec2 cellUv = vec2(center.x / uResolution.x, 1.0 - center.y / uResolution.y); vec2 sampleUv = imageUv(cellUv); float framed = within(sampleUv); vec3 level; if (uPattern == 3) { level = texelFetch(tDiffused, ivec2(cell), 0).rgb; } else { vec3 c = mix(uMatte, textureLod(tImage, sampleUv, uLod).rgb, framed); float t = uPattern == 1 ? blueNoise(cell) : (uPattern == 2 ? engraving(cell) : bayer(cell)); level = quantize(toned(c), t); } vec3 color = mix(uInk, mix(uInk, uPaper, level), max(framed, uKey)); vec3 backdrop = mix(uInk, uPaper, toned(uMatte)); vec2 photoUv = imageUv(vUv); vec3 raw = texture(tImage, photoUv).rgb; float plain = uKey * (1.0 - smoothstep(0.05, 0.22, distance(raw, uMatte))); vec3 photo = mix(mix(uInk, backdrop, uKey), mix(raw, backdrop, plain), within(photoUv)); vec2 point = vec2(cellUv.x, 1.0 - cellUv.y) * uSize; float mask = max(clamp(texture(tMask, cellUv).r * uHold, 0.0, 1.0), shockwave(point)); float shown = mix(mask, 1.0 - mask, uReverse); float order = bayer(cell.yx); float low = order * (1.0 - uRim); color = mix(color, uRimColor, step(low, shown) * step(0.001, uRim)); color = mix(color, photo, step(low + uRim, shown)); vec2 aspect = vec2(uResolution.x / uResolution.y, 1.0); float spread = length((cellUv - 0.5) * aspect) / length(aspect * 0.5); float appear = step(spread * 0.72 + bayer(cell + vec2(3.0, 5.0)) * 0.28, uIntro * 1.001); fragColor = vec4(mix(uInk, color, appear), 1.0); } `; const DitherVeil = ({ src = DEFAULT_SRC, fit = 'contain', pattern = 'floyd', pixelSize = 2, levels = 2, palette = 'duotone', inkColor = '#120f17', paperColor = '#f4f1ea', contrast = 1.15, brightness = 0, revealRadius = 200, softness = 0.6, linger = 1, rimColor = '#a78bfa', rim = 0, reverse = false, wander = false, clickBurst = true, className = '', style }: DitherVeilProps) => { const containerRef = useRef(null); const settingsRef = useRef(null); const wakeRef = useRef<() => void>(() => {}); useEffect(() => { settingsRef.current = { fit, pattern, pixelSize, levels, palette, inkColor, paperColor, contrast, brightness, revealRadius, softness, linger, rimColor, rim, reverse, wander, clickBurst }; wakeRef.current(); }); useEffect(() => { const container = containerRef.current; if (!container) return undefined; const reducedMotion = window.matchMedia?.('(prefers-reduced-motion: reduce)').matches; const renderer = new Renderer({ dpr: Math.min(window.devicePixelRatio || 1, 2), alpha: false, antialias: false }); const gl = renderer.gl; const canvas = gl.canvas; canvas.style.display = 'block'; canvas.style.width = '100%'; canvas.style.height = '100%'; container.appendChild(canvas); const gl2 = gl as WebGL2RenderingContext; const floatMask = renderer.isWebgl2 && !!renderer.getExtension('EXT_color_buffer_float'); const geometry = new Triangle(gl); const dataTexture = () => new Texture(gl, { image: new Uint8Array(4), width: 1, height: 1, generateMipmaps: false, flipY: false, minFilter: gl.NEAREST, magFilter: gl.NEAREST }); const imageTexture = new Texture(gl, { minFilter: gl.LINEAR_MIPMAP_LINEAR, magFilter: gl.LINEAR }); const noiseTexture = dataTexture(); const diffusedTexture = dataTexture(); const createMask = (w: number, h: number) => new RenderTarget(gl, { width: w, height: h, depth: false, type: floatMask ? gl2.HALF_FLOAT : gl.UNSIGNED_BYTE, internalFormat: floatMask ? gl2.RGBA16F : gl.RGBA, minFilter: gl.LINEAR, magFilter: gl.LINEAR }); const destroyMask = (target: RenderTarget) => { gl.deleteFramebuffer(target.buffer); gl.deleteTexture(target.texture.texture); }; let masks = [createMask(2, 2), createMask(2, 2)]; const maskUniforms = { tPrev: { value: masks[0].texture }, uSize: { value: [1, 1] }, uFrom: { value: [0, 0] }, uTo: { value: [0, 0] }, uRadius: { value: 1 }, uSoftness: { value: 0.5 }, uStrength: { value: 0 }, uFade: { value: 1 }, uHold: { value: HOLD } }; const viewUniforms = { tImage: { value: imageTexture }, tMask: { value: masks[0].texture }, tNoise: { value: noiseTexture }, tDiffused: { value: diffusedTexture }, uResolution: { value: [1, 1] }, uCover: { value: [1, 1] }, uLod: { value: 0 }, uCell: { value: 3 }, uPattern: { value: 0 }, uPalette: { value: 0 }, uLevels: { value: 2 }, uInk: { value: [0, 0, 0] }, uPaper: { value: [1, 1, 1] }, uRimColor: { value: [1, 1, 1] }, uRim: { value: 0 }, uContrast: { value: 1 }, uBrightness: { value: 0 }, uReverse: { value: 0 }, uIntro: { value: 0 }, uHold: { value: HOLD }, uMatte: { value: [0, 0, 0] }, uKey: { value: 0 }, uSize: { value: [1, 1] }, uBursts: { value: Array.from({ length: MAX_BURSTS * 4 }, () => 0) }, uBurstWidth: { value: 60 } }; const program = (fragment: string, uniforms: Record) => new Program(gl, { vertex, fragment, uniforms, depthTest: false, depthWrite: false }); const maskMesh = new Mesh(gl, { geometry, program: program(maskFragment, maskUniforms) }); const viewMesh = new Mesh(gl, { geometry, program: program(viewFragment, viewUniforms) }); const sampler = document.createElement('canvas'); const samplerContext = sampler.getContext('2d', { willReadFrequently: true }); let image: HTMLImageElement | null = null; let introStart = 0; let diffusedKey = ''; let diffusionBlocked = false; let width = 1; let height = 1; let visible = true; let raf = 0; let last = performance.now(); let trailUntil = 0; let presence = 0; let drift = 0; const pointer = { x: 0, y: 0, inside: false, fresh: true, placed: false }; const brush = { x: 0, y: 0, px: 0, py: 0 }; const bursts: { x: number; y: number; start: number }[] = []; const layout = () => { width = Math.max(1, container.clientWidth); height = Math.max(1, container.clientHeight); renderer.setSize(width, height); viewUniforms.uResolution.value = [canvas.width, canvas.height]; maskUniforms.uSize.value = [width, height]; viewUniforms.uSize.value = [width, height]; const mw = Math.max(2, Math.round(width * MASK_SCALE)); const mh = Math.max(2, Math.round(height * MASK_SCALE)); if (mw !== masks[0].width || mh !== masks[0].height) { masks.forEach(destroyMask); masks = [createMask(mw, mh), createMask(mw, mh)]; } if (!pointer.placed) { pointer.x = width / 2; pointer.y = height / 2; } }; const updateDiffusion = (cell: number, s: Settings) => { if (!image || !samplerContext) return; const cols = Math.ceil(canvas.width / cell); const rows = Math.ceil(canvas.height / cell); const key = [ s.pattern, s.levels, s.palette, s.contrast, s.brightness, s.fit, cols, rows, canvas.width, canvas.height ].join('|'); if (key === diffusedKey) return; diffusedKey = key; const [cx, cy] = viewUniforms.uCover.value; const iw = image.naturalWidth; const ih = image.naturalHeight; sampler.width = cols; sampler.height = rows; samplerContext.imageSmoothingEnabled = true; samplerContext.imageSmoothingQuality = 'high'; const [mr, mg, mb] = viewUniforms.uMatte.value; samplerContext.fillStyle = `rgb(${mr * 255}, ${mg * 255}, ${mb * 255})`; samplerContext.fillRect(0, 0, cols, rows); const sx = (0.5 - 0.5 * cx) * iw; const sy = (0.5 - 0.5 * cy) * ih; const sw = ((cols * cell) / canvas.width) * cx * iw; const sh = ((rows * cell) / canvas.height) * cy * ih; const x0 = Math.max(sx, 0); const y0 = Math.max(sy, 0); const x1 = Math.min(sx + sw, iw); const y1 = Math.min(sy + sh, ih); if (x1 > x0 && y1 > y0) { samplerContext.drawImage( image, x0, y0, x1 - x0, y1 - y0, ((x0 - sx) / sw) * cols, ((y0 - sy) / sh) * rows, ((x1 - x0) / sw) * cols, ((y1 - y0) / sh) * rows ); } const grade = (v: number) => Math.pow(Math.min(1, Math.max(0, (v - 0.5) * s.contrast + 0.5 + s.brightness)), 1.6); const pixels = samplerContext.getImageData(0, 0, cols, rows).data; diffusedTexture.image = diffuse(pixels, cols, rows, KERNELS[s.pattern], s.levels, s.palette === 'rgb', grade); diffusedTexture.width = cols; diffusedTexture.height = rows; diffusedTexture.needsUpdate = true; }; const frame = (now: number) => { raf = 0; const s = settingsRef.current; if (!s) return; const dt = Math.min(0.05, Math.max(0, (now - last) / 1000)); last = now; const wanderOn = s.wander && !reducedMotion; let targetX = pointer.x; let targetY = pointer.y; if (!pointer.inside && wanderOn) { drift = Math.min(1, drift + dt / 1.2); const [wx, wy] = wanderAt(now / 1000, width, height); const k = drift * drift * (3 - 2 * drift); targetX += (wx - targetX) * k; targetY += (wy - targetY) * k; } else { drift = 0; } presence += ((pointer.inside || wanderOn ? 1 : 0) - presence) * (1 - Math.exp(-dt / 0.16)); if (pointer.fresh) { brush.x = brush.px = targetX; brush.y = brush.py = targetY; pointer.fresh = false; } else { const follow = 1 - Math.exp(-dt / 0.035); brush.x += (targetX - brush.x) * follow; brush.y += (targetY - brush.y) * follow; } const burstData = viewUniforms.uBursts.value; burstData.fill(0); for (let i = bursts.length - 1; i >= 0; i--) { if ((now - bursts[i].start) / 1000 >= BURST_SECONDS) bursts.splice(i, 1); } bursts.forEach((b, i) => { const k = Math.max(0, (now - b.start) / 1000 / BURST_SECONDS); const reach = Math.hypot(Math.max(b.x, width - b.x), Math.max(b.y, height - b.y)) + viewUniforms.uBurstWidth.value; burstData[i * 4] = b.x; burstData[i * 4 + 1] = b.y; burstData[i * 4 + 2] = reach * Math.sin((k * Math.PI) / 2); burstData[i * 4 + 3] = 1 - k * k * k; }); if (presence > 0.002) trailUntil = now + s.linger * 1000 + 150; const minFade = floatMask ? 0 : 1.5 / 255; const fade = s.linger > 0 ? dt / s.linger : 1; maskUniforms.tPrev.value = masks[0].texture; maskUniforms.uFrom.value = [brush.px, brush.py]; maskUniforms.uTo.value = [brush.x, brush.y]; maskUniforms.uRadius.value = s.revealRadius * (0.45 + 0.55 * presence); maskUniforms.uSoftness.value = s.softness; maskUniforms.uStrength.value = presence; maskUniforms.uFade.value = Math.max(fade, minFade); viewUniforms.uBurstWidth.value = Math.max(60, s.revealRadius * 0.9); renderer.render({ scene: maskMesh, target: masks[1] }); masks.reverse(); brush.px = brush.x; brush.py = brush.y; const cell = Math.max(1, Math.round(s.pixelSize * renderer.dpr)); if (image) { viewUniforms.uCover.value = fitScale( canvas.width, canvas.height, image.naturalWidth, image.naturalHeight, s.fit === 'contain' ); } let patternIndex = ORDERED[s.pattern] ?? 0; if (KERNELS[s.pattern]) { patternIndex = 0; if (image && !diffusionBlocked) { try { updateDiffusion(cell, s); patternIndex = 3; } catch { diffusionBlocked = true; } } } if (patternIndex === 1 && noiseTexture.width !== 64) { noiseTexture.image = getBlueNoise(); noiseTexture.width = 64; noiseTexture.height = 64; noiseTexture.needsUpdate = true; } const texelsPerPixel = image ? (viewUniforms.uCover.value[0] * image.naturalWidth) / canvas.width : 1; viewUniforms.tMask.value = masks[0].texture; viewUniforms.uCell.value = cell; viewUniforms.uLod.value = Math.log2(Math.max(cell * texelsPerPixel, 1)); viewUniforms.uPattern.value = patternIndex; viewUniforms.uPalette.value = s.palette === 'rgb' ? 1 : 0; viewUniforms.uLevels.value = Math.max(2, Math.round(s.levels)); viewUniforms.uInk.value = hexToRgb(s.inkColor); viewUniforms.uPaper.value = hexToRgb(s.paperColor); viewUniforms.uRimColor.value = hexToRgb(s.rimColor); viewUniforms.uRim.value = Math.min(Math.max(s.rim, 0), 0.95); viewUniforms.uContrast.value = s.contrast; viewUniforms.uBrightness.value = s.brightness; viewUniforms.uReverse.value = s.reverse ? 1 : 0; const intro = image ? Math.min(1, (now - introStart) / INTRO_MS) : 0; viewUniforms.uIntro.value = 1 - Math.pow(1 - intro, 2); renderer.render({ scene: viewMesh }); const busy = pointer.inside || wanderOn || presence > 0.002 || bursts.length > 0 || now < trailUntil || (image && intro < 1); if (busy && visible) raf = requestAnimationFrame(frame); }; const wake = () => { if (raf || !visible) return; last = performance.now(); raf = requestAnimationFrame(frame); }; wakeRef.current = wake; const img = new Image(); img.crossOrigin = 'anonymous'; img.decoding = 'async'; img.onload = () => { image = img; imageTexture.image = img; try { if (samplerContext) { const edge = measureEdge(samplerContext, img); viewUniforms.uMatte.value = edge.matte; viewUniforms.uKey.value = edge.plain ? 1 : 0; } } catch {} introStart = performance.now(); wake(); }; img.src = src; const locate = (e: PointerEvent) => { const rect = container.getBoundingClientRect(); pointer.x = e.clientX - rect.left; pointer.y = e.clientY - rect.top; pointer.placed = true; }; const onMove = (e: PointerEvent) => { locate(e); if (!pointer.inside) { pointer.inside = true; pointer.fresh = true; } wake(); }; const onLeave = () => { pointer.inside = false; wake(); }; const onDown = (e: PointerEvent) => { onMove(e); if (!settingsRef.current?.clickBurst || (e.pointerType === 'mouse' && e.button !== 0)) return; bursts.push({ x: pointer.x, y: pointer.y, start: performance.now() }); if (bursts.length > MAX_BURSTS) bursts.shift(); }; container.addEventListener('pointermove', onMove, { passive: true }); container.addEventListener('pointerenter', onMove, { passive: true }); container.addEventListener('pointerdown', onDown, { passive: true }); container.addEventListener('pointerleave', onLeave, { passive: true }); container.addEventListener('pointercancel', onLeave, { passive: true }); const resizeObserver = new ResizeObserver(() => { layout(); wake(); }); resizeObserver.observe(container); const intersectionObserver = new IntersectionObserver(([entry]) => { visible = entry.isIntersecting; wake(); }); intersectionObserver.observe(container); layout(); wake(); return () => { cancelAnimationFrame(raf); wakeRef.current = () => {}; resizeObserver.disconnect(); intersectionObserver.disconnect(); img.onload = null; container.removeEventListener('pointermove', onMove); container.removeEventListener('pointerenter', onMove); container.removeEventListener('pointerdown', onDown); container.removeEventListener('pointerleave', onLeave); container.removeEventListener('pointercancel', onLeave); gl.getExtension('WEBGL_lose_context')?.loseContext(); if (canvas.parentNode) canvas.parentNode.removeChild(canvas); }; }, [src]); return

; }; export default DitherVeil;43:oa,10d:T6952,43:o6952,[V0_FILE]typescriptreact:file="/components/dither-veil.tsx" 'use client' import { useEffect, useRef } from 'react'; import type { CSSProperties } from 'react'; import { Renderer, Program, Mesh, Triangle, Texture, RenderTarget } from 'ogl'; import './dither-veil.css'; type Pattern = 'bayer' | 'noise' | 'atkinson' | 'floyd' | 'lines'; type Palette = 'duotone' | 'rgb'; type Fit = 'contain' | 'cover'; type Kernel = [number, number, number][]; type Rgb = [number, number, number]; export interface DitherVeilProps { src?: string; fit?: Fit; pattern?: Pattern; pixelSize?: number; levels?: number; palette?: Palette; inkColor?: string; paperColor?: string; contrast?: number; brightness?: number; revealRadius?: number; softness?: number; linger?: number; rimColor?: string; rim?: number; reverse?: boolean; wander?: boolean; clickBurst?: boolean; className?: string; style?: CSSProperties; } type Settings = Required>; const DEFAULT_SRC = 'https://images.unsplash.com/photo-1737071371043-761e02b1ef95?q=80&w=1400&auto=format&fit=crop'; const ORDERED: Record = { bayer: 0, noise: 1, lines: 2 }; const KERNELS: Record = { atkinson: [ [1, 0, 1 / 8], [2, 0, 1 / 8], [-1, 1, 1 / 8], [0, 1, 1 / 8], [1, 1, 1 / 8], [0, 2, 1 / 8] ], floyd: [ [1, 0, 7 / 16], [-1, 1, 3 / 16], [0, 1, 5 / 16], [1, 1, 1 / 16] ] }; const MASK_SCALE = 0.5; const MAX_BURSTS = 4; const BURST_SECONDS = 1.2; const HOLD = 1.6; const INTRO_MS = 1100; const hexToRgb = (hex: string): Rgb => { let h = String(hex || '').replace('#', ''); if (h.length === 3) h = h.replace(/./g, c => c + c); const n = parseInt(h.slice(0, 6), 16); return Number.isNaN(n) ? [0, 0, 0] : [((n >> 16) & 255) / 255, ((n >> 8) & 255) / 255, (n & 255) / 255]; }; const fitScale = (w: number, h: number, iw: number, ih: number, contain: boolean): [number, number] => { const ratio = w / h / (iw / ih); if (contain) return ratio > 1 ? [ratio, 1] : [1, 1 / ratio]; return ratio > 1 ? [1, 1 / ratio] : [ratio, 1]; }; const wanderAt = (t: number, w: number, h: number): [number, number] => [ w * (0.5 + 0.33 * Math.sin(t * 0.53) + 0.08 * Math.sin(t * 1.31 + 0.6)), h * (0.5 + 0.28 * Math.sin(t * 0.71 + 1.1) + 0.07 * Math.cos(t * 1.57)) ]; const measureEdge = (context: CanvasRenderingContext2D, image: HTMLImageElement): { matte: Rgb; plain: boolean } => { const size = 32; context.canvas.width = size; context.canvas.height = size; context.drawImage(image, 0, 0, size, size); const data = context.getImageData(0, 0, size, size).data; const sum = [0, 0, 0]; const squares = [0, 0, 0]; let count = 0; for (let y = 0; y < size; y++) { for (let x = 0; x < size; x++) { if (x > 0 && y > 0 && x < size - 1 && y < size - 1) continue; for (let c = 0; c < 3; c++) { const v = data[(y * size + x) * 4 + c] / 255; sum[c] += v; squares[c] += v * v; } count++; } } const matte: Rgb = [sum[0] / count, sum[1] / count, sum[2] / count]; const spread = matte.reduce((total, mean, c) => total + Math.sqrt(Math.max(0, squares[c] / count - mean * mean)), 0) / 3; return { matte, plain: spread < 0.06 }; }; let blueNoise: Uint8Array | null = null; const getBlueNoise = (): Uint8Array => { if (blueNoise) return blueNoise; const size = 64; const n = size * size; const wrap = size - 1; const taps: number[] = []; for (let dy = -6; dy <= 6; dy++) { for (let dx = -6; dx <= 6; dx++) taps.push(dx, dy, Math.exp(-(dx * dx + dy * dy) / 4.5)); } const energy = new Float32Array(n); const on = new Uint8Array(n); const splat = (i: number, sign: number) => { const x = i % size; const y = (i - x) / size; for (let k = 0; k < taps.length; k += 3) { energy[((y + taps[k + 1]) & wrap) * size + ((x + taps[k]) & wrap)] += sign * taps[k + 2]; } }; const find = (state: number, highest: boolean) => { let best = 0; let value = highest ? -Infinity : Infinity; for (let i = 0; i < n; i++) { if (on[i] !== state) continue; if (highest ? energy[i] > value : energy[i] < value) { value = energy[i]; best = i; } } return best; }; let seed = 7; const random = () => { seed = (seed * 16807) % 2147483647; return seed / 2147483647; }; const initial = Math.round(n * 0.1); for (let placed = 0; placed < initial; ) { const i = Math.floor(random() * n); if (on[i]) continue; on[i] = 1; splat(i, 1); placed++; } for (let guard = 0; guard < n; guard++) { const cluster = find(1, true); on[cluster] = 0; splat(cluster, -1); const gap = find(0, false); on[gap] = 1; splat(gap, 1); if (gap === cluster) break; } const seedOn = on.slice(); const seedEnergy = energy.slice(); const rank = new Uint16Array(n); for (let r = initial - 1; r >= 0; r--) { const cluster = find(1, true); on[cluster] = 0; splat(cluster, -1); rank[cluster] = r; } on.set(seedOn); energy.set(seedEnergy); for (let r = initial; r < n; r++) { const gap = find(0, false); on[gap] = 1; splat(gap, 1); rank[gap] = r; } const data = new Uint8Array(n * 4); for (let i = 0; i < n; i++) { const v = Math.floor((rank[i] / n) * 256); data[i * 4] = v; data[i * 4 + 1] = v; data[i * 4 + 2] = v; data[i * 4 + 3] = 255; } blueNoise = data; return data; }; const diffuse = ( pixels: Uint8ClampedArray, cols: number, rows: number, kernel: Kernel, levels: number, rgb: boolean, grade: (v: number) => number ): Uint8Array => { const channels = rgb ? 3 : 1; const values = new Float32Array(cols * rows * channels); for (let i = 0; i < cols * rows; i++) { const r = pixels[i * 4] / 255; const g = pixels[i * 4 + 1] / 255; const b = pixels[i * 4 + 2] / 255; if (rgb) { values[i * 3] = grade(r); values[i * 3 + 1] = grade(g); values[i * 3 + 2] = grade(b); } else { values[i] = grade(0.2126 * r + 0.7152 * g + 0.0722 * b); } } const steps = levels - 1; const out = new Uint8Array(cols * rows * 4); for (let y = 0; y < rows; y++) { const dir = y & 1 ? -1 : 1; for (let i = 0; i < cols; i++) { const x = dir > 0 ? i : cols - 1 - i; const p = y * cols + x; for (let c = 0; c < channels; c++) { const old = values[p * channels + c]; const q = Math.min(steps, Math.max(0, Math.round(old * steps))) / steps; const err = old - q; const byte = Math.round(q * 255); if (rgb) out[p * 4 + c] = byte; else out[p * 4] = out[p * 4 + 1] = out[p * 4 + 2] = byte; for (let k = 0; k < kernel.length; k++) { const nx = x + kernel[k][0] * dir; const ny = y + kernel[k][1]; if (nx < 0 || nx >= cols || ny >= rows) continue; values[(ny * cols + nx) * channels + c] += err * kernel[k][2]; } } out[p * 4 + 3] = 255; } } return out; }; const vertex = `#version 300 es in vec2 position; in vec2 uv; out vec2 vUv; void main() { vUv = uv; gl_Position = vec4(position, 0.0, 1.0); } `; const maskFragment = `#version 300 es precision highp float; uniform sampler2D tPrev; uniform vec2 uSize; uniform vec2 uFrom; uniform vec2 uTo; uniform float uRadius; uniform float uSoftness; uniform float uStrength; uniform float uFade; uniform float uHold; in vec2 vUv; out vec4 fragColor; float strokeDistance(vec2 p, vec2 a, vec2 b) { vec2 ab = b - a; float h = clamp(dot(p - a, ab) / max(dot(ab, ab), 0.0001), 0.0, 1.0); return length(p - a - ab * h); } void main() { vec2 p = vec2(vUv.x, 1.0 - vUv.y) * uSize; float trail = max(texture(tPrev, vUv).r - uFade, 0.0); float band = max(uRadius * uSoftness, 1.0) * uHold; float d = strokeDistance(p, uFrom, uTo); trail = max(trail, clamp((uRadius - d) / band, 0.0, 1.0) * uStrength); fragColor = vec4(trail, 0.0, 0.0, 1.0); } `; const viewFragment = `#version 300 es precision highp float; precision highp int; uniform sampler2D tImage; uniform sampler2D tMask; uniform sampler2D tNoise; uniform sampler2D tDiffused; uniform vec2 uResolution; uniform vec2 uCover; uniform float uLod; uniform float uCell; uniform int uPattern; uniform int uPalette; uniform float uLevels; uniform vec3 uInk; uniform vec3 uPaper; uniform vec3 uRimColor; uniform float uRim; uniform float uContrast; uniform float uBrightness; uniform float uReverse; uniform float uIntro; uniform float uHold; uniform vec3 uMatte; uniform float uKey; uniform vec2 uSize; uniform vec4 uBursts[4]; uniform float uBurstWidth; in vec2 vUv; out vec4 fragColor; float bayer(vec2 cell) { ivec2 p = ivec2(mod(cell, 8.0)); int v = p.x ^ p.y; int m = ((v & 1) << 5) | ((p.y & 1) << 4) | ((v & 2) << 2) | ((p.y & 2) << 1) | ((v & 4) >> 1) | ((p.y & 4) >> 2); return (float(m) + 0.5) / 64.0; } float blueNoise(vec2 cell) { return (texelFetch(tNoise, ivec2(mod(cell, 64.0)), 0).r * 255.0 + 0.5) / 256.0; } float engraving(vec2 cell) { float period = 6.0; float f = (mod(cell.x + cell.y, period) + 0.5) / period; return clamp(abs(f * 2.0 - 1.0) + (bayer(cell) - 0.5) * (2.0 / period), 0.0, 1.0); } vec2 imageUv(vec2 uv) { return (uv - 0.5) * uCover + 0.5; } float within(vec2 p) { vec2 s = step(vec2(0.0), p) * step(p, vec2(1.0)); return s.x * s.y; } vec3 grade(vec3 c) { return pow(clamp((c - 0.5) * uContrast + 0.5 + uBrightness, 0.0, 1.0), vec3(1.6)); } float shockwave(vec2 p) { float value = 0.0; for (int i = 0; i < 4; i++) { vec4 burst = uBursts[i]; if (burst.w <= 0.0) continue; float offset = distance(p, burst.xy) - burst.z; float edge = offset > 0.0 ? offset / (uBurstWidth * 0.35) : -offset / uBurstWidth; value = max(value, clamp(1.0 - edge, 0.0, 1.0) * burst.w); } return value; } vec3 toned(vec3 c) { return uPalette == 1 ? grade(c) : grade(vec3(dot(c, vec3(0.2126, 0.7152, 0.0722)))); } vec3 quantize(vec3 v, float t) { float steps = max(uLevels - 1.0, 1.0); vec3 s = v * steps; vec3 base = floor(s); return min(base + step(vec3(t), s - base), vec3(steps)) / steps; } void main() { vec2 px = vec2(gl_FragCoord.x, uResolution.y - gl_FragCoord.y); vec2 cell = floor(px / uCell); vec2 center = (cell + 0.5) * uCell; vec2 cellUv = vec2(center.x / uResolution.x, 1.0 - center.y / uResolution.y); vec2 sampleUv = imageUv(cellUv); float framed = within(sampleUv); vec3 level; if (uPattern == 3) { level = texelFetch(tDiffused, ivec2(cell), 0).rgb; } else { vec3 c = mix(uMatte, textureLod(tImage, sampleUv, uLod).rgb, framed); float t = uPattern == 1 ? blueNoise(cell) : (uPattern == 2 ? engraving(cell) : bayer(cell)); level = quantize(toned(c), t); } vec3 color = mix(uInk, mix(uInk, uPaper, level), max(framed, uKey)); vec3 backdrop = mix(uInk, uPaper, toned(uMatte)); vec2 photoUv = imageUv(vUv); vec3 raw = texture(tImage, photoUv).rgb; float plain = uKey * (1.0 - smoothstep(0.05, 0.22, distance(raw, uMatte))); vec3 photo = mix(mix(uInk, backdrop, uKey), mix(raw, backdrop, plain), within(photoUv)); vec2 point = vec2(cellUv.x, 1.0 - cellUv.y) * uSize; float mask = max(clamp(texture(tMask, cellUv).r * uHold, 0.0, 1.0), shockwave(point)); float shown = mix(mask, 1.0 - mask, uReverse); float order = bayer(cell.yx); float low = order * (1.0 - uRim); color = mix(color, uRimColor, step(low, shown) * step(0.001, uRim)); color = mix(color, photo, step(low + uRim, shown)); vec2 aspect = vec2(uResolution.x / uResolution.y, 1.0); float spread = length((cellUv - 0.5) * aspect) / length(aspect * 0.5); float appear = step(spread * 0.72 + bayer(cell + vec2(3.0, 5.0)) * 0.28, uIntro * 1.001); fragColor = vec4(mix(uInk, color, appear), 1.0); } `; const DitherVeil = ({ src = DEFAULT_SRC, fit = 'contain', pattern = 'floyd', pixelSize = 2, levels = 2, palette = 'duotone', inkColor = '#120f17', paperColor = '#f4f1ea', contrast = 1.15, brightness = 0, revealRadius = 200, softness = 0.6, linger = 1, rimColor = '#a78bfa', rim = 0, reverse = false, wander = false, clickBurst = true, className = '', style }: DitherVeilProps) => { const containerRef = useRef(null); const settingsRef = useRef(null); const wakeRef = useRef<() => void>(() => {}); useEffect(() => { settingsRef.current = { fit, pattern, pixelSize, levels, palette, inkColor, paperColor, contrast, brightness, revealRadius, softness, linger, rimColor, rim, reverse, wander, clickBurst }; wakeRef.current(); }); useEffect(() => { const container = containerRef.current; if (!container) return undefined; const reducedMotion = window.matchMedia?.('(prefers-reduced-motion: reduce)').matches; const renderer = new Renderer({ dpr: Math.min(window.devicePixelRatio || 1, 2), alpha: false, antialias: false }); const gl = renderer.gl; const canvas = gl.canvas; canvas.style.display = 'block'; canvas.style.width = '100%'; canvas.style.height = '100%'; container.appendChild(canvas); const gl2 = gl as WebGL2RenderingContext; const floatMask = renderer.isWebgl2 && !!renderer.getExtension('EXT_color_buffer_float'); const geometry = new Triangle(gl); const dataTexture = () => new Texture(gl, { image: new Uint8Array(4), width: 1, height: 1, generateMipmaps: false, flipY: false, minFilter: gl.NEAREST, magFilter: gl.NEAREST }); const imageTexture = new Texture(gl, { minFilter: gl.LINEAR_MIPMAP_LINEAR, magFilter: gl.LINEAR }); const noiseTexture = dataTexture(); const diffusedTexture = dataTexture(); const createMask = (w: number, h: number) => new RenderTarget(gl, { width: w, height: h, depth: false, type: floatMask ? gl2.HALF_FLOAT : gl.UNSIGNED_BYTE, internalFormat: floatMask ? gl2.RGBA16F : gl.RGBA, minFilter: gl.LINEAR, magFilter: gl.LINEAR }); const destroyMask = (target: RenderTarget) => { gl.deleteFramebuffer(target.buffer); gl.deleteTexture(target.texture.texture); }; let masks = [createMask(2, 2), createMask(2, 2)]; const maskUniforms = { tPrev: { value: masks[0].texture }, uSize: { value: [1, 1] }, uFrom: { value: [0, 0] }, uTo: { value: [0, 0] }, uRadius: { value: 1 }, uSoftness: { value: 0.5 }, uStrength: { value: 0 }, uFade: { value: 1 }, uHold: { value: HOLD } }; const viewUniforms = { tImage: { value: imageTexture }, tMask: { value: masks[0].texture }, tNoise: { value: noiseTexture }, tDiffused: { value: diffusedTexture }, uResolution: { value: [1, 1] }, uCover: { value: [1, 1] }, uLod: { value: 0 }, uCell: { value: 3 }, uPattern: { value: 0 }, uPalette: { value: 0 }, uLevels: { value: 2 }, uInk: { value: [0, 0, 0] }, uPaper: { value: [1, 1, 1] }, uRimColor: { value: [1, 1, 1] }, uRim: { value: 0 }, uContrast: { value: 1 }, uBrightness: { value: 0 }, uReverse: { value: 0 }, uIntro: { value: 0 }, uHold: { value: HOLD }, uMatte: { value: [0, 0, 0] }, uKey: { value: 0 }, uSize: { value: [1, 1] }, uBursts: { value: Array.from({ length: MAX_BURSTS * 4 }, () => 0) }, uBurstWidth: { value: 60 } }; const program = (fragment: string, uniforms: Record) => new Program(gl, { vertex, fragment, uniforms, depthTest: false, depthWrite: false }); const maskMesh = new Mesh(gl, { geometry, program: program(maskFragment, maskUniforms) }); const viewMesh = new Mesh(gl, { geometry, program: program(viewFragment, viewUniforms) }); const sampler = document.createElement('canvas'); const samplerContext = sampler.getContext('2d', { willReadFrequently: true }); let image: HTMLImageElement | null = null; let introStart = 0; let diffusedKey = ''; let diffusionBlocked = false; let width = 1; let height = 1; let visible = true; let raf = 0; let last = performance.now(); let trailUntil = 0; let presence = 0; let drift = 0; const pointer = { x: 0, y: 0, inside: false, fresh: true, placed: false }; const brush = { x: 0, y: 0, px: 0, py: 0 }; const bursts: { x: number; y: number; start: number }[] = []; const layout = () => { width = Math.max(1, container.clientWidth); height = Math.max(1, container.clientHeight); renderer.setSize(width, height); viewUniforms.uResolution.value = [canvas.width, canvas.height]; maskUniforms.uSize.value = [width, height]; viewUniforms.uSize.value = [width, height]; const mw = Math.max(2, Math.round(width * MASK_SCALE)); const mh = Math.max(2, Math.round(height * MASK_SCALE)); if (mw !== masks[0].width || mh !== masks[0].height) { masks.forEach(destroyMask); masks = [createMask(mw, mh), createMask(mw, mh)]; } if (!pointer.placed) { pointer.x = width / 2; pointer.y = height / 2; } }; const updateDiffusion = (cell: number, s: Settings) => { if (!image || !samplerContext) return; const cols = Math.ceil(canvas.width / cell); const rows = Math.ceil(canvas.height / cell); const key = [ s.pattern, s.levels, s.palette, s.contrast, s.brightness, s.fit, cols, rows, canvas.width, canvas.height ].join('|'); if (key === diffusedKey) return; diffusedKey = key; const [cx, cy] = viewUniforms.uCover.value; const iw = image.naturalWidth; const ih = image.naturalHeight; sampler.width = cols; sampler.height = rows; samplerContext.imageSmoothingEnabled = true; samplerContext.imageSmoothingQuality = 'high'; const [mr, mg, mb] = viewUniforms.uMatte.value; samplerContext.fillStyle = `rgb(${mr * 255}, ${mg * 255}, ${mb * 255})`; samplerContext.fillRect(0, 0, cols, rows); const sx = (0.5 - 0.5 * cx) * iw; const sy = (0.5 - 0.5 * cy) * ih; const sw = ((cols * cell) / canvas.width) * cx * iw; const sh = ((rows * cell) / canvas.height) * cy * ih; const x0 = Math.max(sx, 0); const y0 = Math.max(sy, 0); const x1 = Math.min(sx + sw, iw); const y1 = Math.min(sy + sh, ih); if (x1 > x0 && y1 > y0) { samplerContext.drawImage( image, x0, y0, x1 - x0, y1 - y0, ((x0 - sx) / sw) * cols, ((y0 - sy) / sh) * rows, ((x1 - x0) / sw) * cols, ((y1 - y0) / sh) * rows ); } const grade = (v: number) => Math.pow(Math.min(1, Math.max(0, (v - 0.5) * s.contrast + 0.5 + s.brightness)), 1.6); const pixels = samplerContext.getImageData(0, 0, cols, rows).data; diffusedTexture.image = diffuse(pixels, cols, rows, KERNELS[s.pattern], s.levels, s.palette === 'rgb', grade); diffusedTexture.width = cols; diffusedTexture.height = rows; diffusedTexture.needsUpdate = true; }; const frame = (now: number) => { raf = 0; const s = settingsRef.current; if (!s) return; const dt = Math.min(0.05, Math.max(0, (now - last) / 1000)); last = now; const wanderOn = s.wander && !reducedMotion; let targetX = pointer.x; let targetY = pointer.y; if (!pointer.inside && wanderOn) { drift = Math.min(1, drift + dt / 1.2); const [wx, wy] = wanderAt(now / 1000, width, height); const k = drift * drift * (3 - 2 * drift); targetX += (wx - targetX) * k; targetY += (wy - targetY) * k; } else { drift = 0; } presence += ((pointer.inside || wanderOn ? 1 : 0) - presence) * (1 - Math.exp(-dt / 0.16)); if (pointer.fresh) { brush.x = brush.px = targetX; brush.y = brush.py = targetY; pointer.fresh = false; } else { const follow = 1 - Math.exp(-dt / 0.035); brush.x += (targetX - brush.x) * follow; brush.y += (targetY - brush.y) * follow; } const burstData = viewUniforms.uBursts.value; burstData.fill(0); for (let i = bursts.length - 1; i >= 0; i--) { if ((now - bursts[i].start) / 1000 >= BURST_SECONDS) bursts.splice(i, 1); } bursts.forEach((b, i) => { const k = Math.max(0, (now - b.start) / 1000 / BURST_SECONDS); const reach = Math.hypot(Math.max(b.x, width - b.x), Math.max(b.y, height - b.y)) + viewUniforms.uBurstWidth.value; burstData[i * 4] = b.x; burstData[i * 4 + 1] = b.y; burstData[i * 4 + 2] = reach * Math.sin((k * Math.PI) / 2); burstData[i * 4 + 3] = 1 - k * k * k; }); if (presence > 0.002) trailUntil = now + s.linger * 1000 + 150; const minFade = floatMask ? 0 : 1.5 / 255; const fade = s.linger > 0 ? dt / s.linger : 1; maskUniforms.tPrev.value = masks[0].texture; maskUniforms.uFrom.value = [brush.px, brush.py]; maskUniforms.uTo.value = [brush.x, brush.y]; maskUniforms.uRadius.value = s.revealRadius * (0.45 + 0.55 * presence); maskUniforms.uSoftness.value = s.softness; maskUniforms.uStrength.value = presence; maskUniforms.uFade.value = Math.max(fade, minFade); viewUniforms.uBurstWidth.value = Math.max(60, s.revealRadius * 0.9); renderer.render({ scene: maskMesh, target: masks[1] }); masks.reverse(); brush.px = brush.x; brush.py = brush.y; const cell = Math.max(1, Math.round(s.pixelSize * renderer.dpr)); if (image) { viewUniforms.uCover.value = fitScale( canvas.width, canvas.height, image.naturalWidth, image.naturalHeight, s.fit === 'contain' ); } let patternIndex = ORDERED[s.pattern] ?? 0; if (KERNELS[s.pattern]) { patternIndex = 0; if (image && !diffusionBlocked) { try { updateDiffusion(cell, s); patternIndex = 3; } catch { diffusionBlocked = true; } } } if (patternIndex === 1 && noiseTexture.width !== 64) { noiseTexture.image = getBlueNoise(); noiseTexture.width = 64; noiseTexture.height = 64; noiseTexture.needsUpdate = true; } const texelsPerPixel = image ? (viewUniforms.uCover.value[0] * image.naturalWidth) / canvas.width : 1; viewUniforms.tMask.value = masks[0].texture; viewUniforms.uCell.value = cell; viewUniforms.uLod.value = Math.log2(Math.max(cell * texelsPerPixel, 1)); viewUniforms.uPattern.value = patternIndex; viewUniforms.uPalette.value = s.palette === 'rgb' ? 1 : 0; viewUniforms.uLevels.value = Math.max(2, Math.round(s.levels)); viewUniforms.uInk.value = hexToRgb(s.inkColor); viewUniforms.uPaper.value = hexToRgb(s.paperColor); viewUniforms.uRimColor.value = hexToRgb(s.rimColor); viewUniforms.uRim.value = Math.min(Math.max(s.rim, 0), 0.95); viewUniforms.uContrast.value = s.contrast; viewUniforms.uBrightness.value = s.brightness; viewUniforms.uReverse.value = s.reverse ? 1 : 0; const intro = image ? Math.min(1, (now - introStart) / INTRO_MS) : 0; viewUniforms.uIntro.value = 1 - Math.pow(1 - intro, 2); renderer.render({ scene: viewMesh }); const busy = pointer.inside || wanderOn || presence > 0.002 || bursts.length > 0 || now < trailUntil || (image && intro < 1); if (busy && visible) raf = requestAnimationFrame(frame); }; const wake = () => { if (raf || !visible) return; last = performance.now(); raf = requestAnimationFrame(frame); }; wakeRef.current = wake; const img = new Image(); img.crossOrigin = 'anonymous'; img.decoding = 'async'; img.onload = () => { image = img; imageTexture.image = img; try { if (samplerContext) { const edge = measureEdge(samplerContext, img); viewUniforms.uMatte.value = edge.matte; viewUniforms.uKey.value = edge.plain ? 1 : 0; } } catch {} introStart = performance.now(); wake(); }; img.src = src; const locate = (e: PointerEvent) => { const rect = container.getBoundingClientRect(); pointer.x = e.clientX - rect.left; pointer.y = e.clientY - rect.top; pointer.placed = true; }; const onMove = (e: PointerEvent) => { locate(e); if (!pointer.inside) { pointer.inside = true; pointer.fresh = true; } wake(); }; const onLeave = () => { pointer.inside = false; wake(); }; const onDown = (e: PointerEvent) => { onMove(e); if (!settingsRef.current?.clickBurst || (e.pointerType === 'mouse' && e.button !== 0)) return; bursts.push({ x: pointer.x, y: pointer.y, start: performance.now() }); if (bursts.length > MAX_BURSTS) bursts.shift(); }; container.addEventListener('pointermove', onMove, { passive: true }); container.addEventListener('pointerenter', onMove, { passive: true }); container.addEventListener('pointerdown', onDown, { passive: true }); container.addEventListener('pointerleave', onLeave, { passive: true }); container.addEventListener('pointercancel', onLeave, { passive: true }); const resizeObserver = new ResizeObserver(() => { layout(); wake(); }); resizeObserver.observe(container); const intersectionObserver = new IntersectionObserver(([entry]) => { visible = entry.isIntersecting; wake(); }); intersectionObserver.observe(container); layout(); wake(); return () => { cancelAnimationFrame(raf); wakeRef.current = () => {}; resizeObserver.disconnect(); intersectionObserver.disconnect(); img.onload = null; container.removeEventListener('pointermove', onMove); container.removeEventListener('pointerenter', onMove); container.removeEventListener('pointerdown', onDown); container.removeEventListener('pointerleave', onLeave); container.removeEventListener('pointercancel', onLeave); gl.getExtension('WEBGL_lose_context')?.loseContext(); if (canvas.parentNode) canvas.parentNode.removeChild(canvas); }; }, [src]); return

; }; export default DitherVeil;43:oa,10e:T6952,43:o6952,[V0_FILE]typescriptreact:file="/components/dither-veil.tsx" 'use client' import { useEffect, useRef } from 'react'; import type { CSSProperties } from 'react'; import { Renderer, Program, Mesh, Triangle, Texture, RenderTarget } from 'ogl'; import './dither-veil.css'; type Pattern = 'bayer' | 'noise' | 'atkinson' | 'floyd' | 'lines'; type Palette = 'duotone' | 'rgb'; type Fit = 'contain' | 'cover'; type Kernel = [number, number, number][]; type Rgb = [number, number, number]; export interface DitherVeilProps { src?: string; fit?: Fit; pattern?: Pattern; pixelSize?: number; levels?: number; palette?: Palette; inkColor?: string; paperColor?: string; contrast?: number; brightness?: number; revealRadius?: number; softness?: number; linger?: number; rimColor?: string; rim?: number; reverse?: boolean; wander?: boolean; clickBurst?: boolean; className?: string; style?: CSSProperties; } type Settings = Required>; const DEFAULT_SRC = 'https://images.unsplash.com/photo-1737071371043-761e02b1ef95?q=80&w=1400&auto=format&fit=crop'; const ORDERED: Record = { bayer: 0, noise: 1, lines: 2 }; const KERNELS: Record = { atkinson: [ [1, 0, 1 / 8], [2, 0, 1 / 8], [-1, 1, 1 / 8], [0, 1, 1 / 8], [1, 1, 1 / 8], [0, 2, 1 / 8] ], floyd: [ [1, 0, 7 / 16], [-1, 1, 3 / 16], [0, 1, 5 / 16], [1, 1, 1 / 16] ] }; const MASK_SCALE = 0.5; const MAX_BURSTS = 4; const BURST_SECONDS = 1.2; const HOLD = 1.6; const INTRO_MS = 1100; const hexToRgb = (hex: string): Rgb => { let h = String(hex || '').replace('#', ''); if (h.length === 3) h = h.replace(/./g, c => c + c); const n = parseInt(h.slice(0, 6), 16); return Number.isNaN(n) ? [0, 0, 0] : [((n >> 16) & 255) / 255, ((n >> 8) & 255) / 255, (n & 255) / 255]; }; const fitScale = (w: number, h: number, iw: number, ih: number, contain: boolean): [number, number] => { const ratio = w / h / (iw / ih); if (contain) return ratio > 1 ? [ratio, 1] : [1, 1 / ratio]; return ratio > 1 ? [1, 1 / ratio] : [ratio, 1]; }; const wanderAt = (t: number, w: number, h: number): [number, number] => [ w * (0.5 + 0.33 * Math.sin(t * 0.53) + 0.08 * Math.sin(t * 1.31 + 0.6)), h * (0.5 + 0.28 * Math.sin(t * 0.71 + 1.1) + 0.07 * Math.cos(t * 1.57)) ]; const measureEdge = (context: CanvasRenderingContext2D, image: HTMLImageElement): { matte: Rgb; plain: boolean } => { const size = 32; context.canvas.width = size; context.canvas.height = size; context.drawImage(image, 0, 0, size, size); const data = context.getImageData(0, 0, size, size).data; const sum = [0, 0, 0]; const squares = [0, 0, 0]; let count = 0; for (let y = 0; y < size; y++) { for (let x = 0; x < size; x++) { if (x > 0 && y > 0 && x < size - 1 && y < size - 1) continue; for (let c = 0; c < 3; c++) { const v = data[(y * size + x) * 4 + c] / 255; sum[c] += v; squares[c] += v * v; } count++; } } const matte: Rgb = [sum[0] / count, sum[1] / count, sum[2] / count]; const spread = matte.reduce((total, mean, c) => total + Math.sqrt(Math.max(0, squares[c] / count - mean * mean)), 0) / 3; return { matte, plain: spread < 0.06 }; }; let blueNoise: Uint8Array | null = null; const getBlueNoise = (): Uint8Array => { if (blueNoise) return blueNoise; const size = 64; const n = size * size; const wrap = size - 1; const taps: number[] = []; for (let dy = -6; dy <= 6; dy++) { for (let dx = -6; dx <= 6; dx++) taps.push(dx, dy, Math.exp(-(dx * dx + dy * dy) / 4.5)); } const energy = new Float32Array(n); const on = new Uint8Array(n); const splat = (i: number, sign: number) => { const x = i % size; const y = (i - x) / size; for (let k = 0; k < taps.length; k += 3) { energy[((y + taps[k + 1]) & wrap) * size + ((x + taps[k]) & wrap)] += sign * taps[k + 2]; } }; const find = (state: number, highest: boolean) => { let best = 0; let value = highest ? -Infinity : Infinity; for (let i = 0; i < n; i++) { if (on[i] !== state) continue; if (highest ? energy[i] > value : energy[i] < value) { value = energy[i]; best = i; } } return best; }; let seed = 7; const random = () => { seed = (seed * 16807) % 2147483647; return seed / 2147483647; }; const initial = Math.round(n * 0.1); for (let placed = 0; placed < initial; ) { const i = Math.floor(random() * n); if (on[i]) continue; on[i] = 1; splat(i, 1); placed++; } for (let guard = 0; guard < n; guard++) { const cluster = find(1, true); on[cluster] = 0; splat(cluster, -1); const gap = find(0, false); on[gap] = 1; splat(gap, 1); if (gap === cluster) break; } const seedOn = on.slice(); const seedEnergy = energy.slice(); const rank = new Uint16Array(n); for (let r = initial - 1; r >= 0; r--) { const cluster = find(1, true); on[cluster] = 0; splat(cluster, -1); rank[cluster] = r; } on.set(seedOn); energy.set(seedEnergy); for (let r = initial; r < n; r++) { const gap = find(0, false); on[gap] = 1; splat(gap, 1); rank[gap] = r; } const data = new Uint8Array(n * 4); for (let i = 0; i < n; i++) { const v = Math.floor((rank[i] / n) * 256); data[i * 4] = v; data[i * 4 + 1] = v; data[i * 4 + 2] = v; data[i * 4 + 3] = 255; } blueNoise = data; return data; }; const diffuse = ( pixels: Uint8ClampedArray, cols: number, rows: number, kernel: Kernel, levels: number, rgb: boolean, grade: (v: number) => number ): Uint8Array => { const channels = rgb ? 3 : 1; const values = new Float32Array(cols * rows * channels); for (let i = 0; i < cols * rows; i++) { const r = pixels[i * 4] / 255; const g = pixels[i * 4 + 1] / 255; const b = pixels[i * 4 + 2] / 255; if (rgb) { values[i * 3] = grade(r); values[i * 3 + 1] = grade(g); values[i * 3 + 2] = grade(b); } else { values[i] = grade(0.2126 * r + 0.7152 * g + 0.0722 * b); } } const steps = levels - 1; const out = new Uint8Array(cols * rows * 4); for (let y = 0; y < rows; y++) { const dir = y & 1 ? -1 : 1; for (let i = 0; i < cols; i++) { const x = dir > 0 ? i : cols - 1 - i; const p = y * cols + x; for (let c = 0; c < channels; c++) { const old = values[p * channels + c]; const q = Math.min(steps, Math.max(0, Math.round(old * steps))) / steps; const err = old - q; const byte = Math.round(q * 255); if (rgb) out[p * 4 + c] = byte; else out[p * 4] = out[p * 4 + 1] = out[p * 4 + 2] = byte; for (let k = 0; k < kernel.length; k++) { const nx = x + kernel[k][0] * dir; const ny = y + kernel[k][1]; if (nx < 0 || nx >= cols || ny >= rows) continue; values[(ny * cols + nx) * channels + c] += err * kernel[k][2]; } } out[p * 4 + 3] = 255; } } return out; }; const vertex = `#version 300 es in vec2 position; in vec2 uv; out vec2 vUv; void main() { vUv = uv; gl_Position = vec4(position, 0.0, 1.0); } `; const maskFragment = `#version 300 es precision highp float; uniform sampler2D tPrev; uniform vec2 uSize; uniform vec2 uFrom; uniform vec2 uTo; uniform float uRadius; uniform float uSoftness; uniform float uStrength; uniform float uFade; uniform float uHold; in vec2 vUv; out vec4 fragColor; float strokeDistance(vec2 p, vec2 a, vec2 b) { vec2 ab = b - a; float h = clamp(dot(p - a, ab) / max(dot(ab, ab), 0.0001), 0.0, 1.0); return length(p - a - ab * h); } void main() { vec2 p = vec2(vUv.x, 1.0 - vUv.y) * uSize; float trail = max(texture(tPrev, vUv).r - uFade, 0.0); float band = max(uRadius * uSoftness, 1.0) * uHold; float d = strokeDistance(p, uFrom, uTo); trail = max(trail, clamp((uRadius - d) / band, 0.0, 1.0) * uStrength); fragColor = vec4(trail, 0.0, 0.0, 1.0); } `; const viewFragment = `#version 300 es precision highp float; precision highp int; uniform sampler2D tImage; uniform sampler2D tMask; uniform sampler2D tNoise; uniform sampler2D tDiffused; uniform vec2 uResolution; uniform vec2 uCover; uniform float uLod; uniform float uCell; uniform int uPattern; uniform int uPalette; uniform float uLevels; uniform vec3 uInk; uniform vec3 uPaper; uniform vec3 uRimColor; uniform float uRim; uniform float uContrast; uniform float uBrightness; uniform float uReverse; uniform float uIntro; uniform float uHold; uniform vec3 uMatte; uniform float uKey; uniform vec2 uSize; uniform vec4 uBursts[4]; uniform float uBurstWidth; in vec2 vUv; out vec4 fragColor; float bayer(vec2 cell) { ivec2 p = ivec2(mod(cell, 8.0)); int v = p.x ^ p.y; int m = ((v & 1) << 5) | ((p.y & 1) << 4) | ((v & 2) << 2) | ((p.y & 2) << 1) | ((v & 4) >> 1) | ((p.y & 4) >> 2); return (float(m) + 0.5) / 64.0; } float blueNoise(vec2 cell) { return (texelFetch(tNoise, ivec2(mod(cell, 64.0)), 0).r * 255.0 + 0.5) / 256.0; } float engraving(vec2 cell) { float period = 6.0; float f = (mod(cell.x + cell.y, period) + 0.5) / period; return clamp(abs(f * 2.0 - 1.0) + (bayer(cell) - 0.5) * (2.0 / period), 0.0, 1.0); } vec2 imageUv(vec2 uv) { return (uv - 0.5) * uCover + 0.5; } float within(vec2 p) { vec2 s = step(vec2(0.0), p) * step(p, vec2(1.0)); return s.x * s.y; } vec3 grade(vec3 c) { return pow(clamp((c - 0.5) * uContrast + 0.5 + uBrightness, 0.0, 1.0), vec3(1.6)); } float shockwave(vec2 p) { float value = 0.0; for (int i = 0; i < 4; i++) { vec4 burst = uBursts[i]; if (burst.w <= 0.0) continue; float offset = distance(p, burst.xy) - burst.z; float edge = offset > 0.0 ? offset / (uBurstWidth * 0.35) : -offset / uBurstWidth; value = max(value, clamp(1.0 - edge, 0.0, 1.0) * burst.w); } return value; } vec3 toned(vec3 c) { return uPalette == 1 ? grade(c) : grade(vec3(dot(c, vec3(0.2126, 0.7152, 0.0722)))); } vec3 quantize(vec3 v, float t) { float steps = max(uLevels - 1.0, 1.0); vec3 s = v * steps; vec3 base = floor(s); return min(base + step(vec3(t), s - base), vec3(steps)) / steps; } void main() { vec2 px = vec2(gl_FragCoord.x, uResolution.y - gl_FragCoord.y); vec2 cell = floor(px / uCell); vec2 center = (cell + 0.5) * uCell; vec2 cellUv = vec2(center.x / uResolution.x, 1.0 - center.y / uResolution.y); vec2 sampleUv = imageUv(cellUv); float framed = within(sampleUv); vec3 level; if (uPattern == 3) { level = texelFetch(tDiffused, ivec2(cell), 0).rgb; } else { vec3 c = mix(uMatte, textureLod(tImage, sampleUv, uLod).rgb, framed); float t = uPattern == 1 ? blueNoise(cell) : (uPattern == 2 ? engraving(cell) : bayer(cell)); level = quantize(toned(c), t); } vec3 color = mix(uInk, mix(uInk, uPaper, level), max(framed, uKey)); vec3 backdrop = mix(uInk, uPaper, toned(uMatte)); vec2 photoUv = imageUv(vUv); vec3 raw = texture(tImage, photoUv).rgb; float plain = uKey * (1.0 - smoothstep(0.05, 0.22, distance(raw, uMatte))); vec3 photo = mix(mix(uInk, backdrop, uKey), mix(raw, backdrop, plain), within(photoUv)); vec2 point = vec2(cellUv.x, 1.0 - cellUv.y) * uSize; float mask = max(clamp(texture(tMask, cellUv).r * uHold, 0.0, 1.0), shockwave(point)); float shown = mix(mask, 1.0 - mask, uReverse); float order = bayer(cell.yx); float low = order * (1.0 - uRim); color = mix(color, uRimColor, step(low, shown) * step(0.001, uRim)); color = mix(color, photo, step(low + uRim, shown)); vec2 aspect = vec2(uResolution.x / uResolution.y, 1.0); float spread = length((cellUv - 0.5) * aspect) / length(aspect * 0.5); float appear = step(spread * 0.72 + bayer(cell + vec2(3.0, 5.0)) * 0.28, uIntro * 1.001); fragColor = vec4(mix(uInk, color, appear), 1.0); } `; const DitherVeil = ({ src = DEFAULT_SRC, fit = 'contain', pattern = 'floyd', pixelSize = 2, levels = 2, palette = 'duotone', inkColor = '#120f17', paperColor = '#f4f1ea', contrast = 1.15, brightness = 0, revealRadius = 200, softness = 0.6, linger = 1, rimColor = '#a78bfa', rim = 0, reverse = false, wander = false, clickBurst = true, className = '', style }: DitherVeilProps) => { const containerRef = useRef(null); const settingsRef = useRef(null); const wakeRef = useRef<() => void>(() => {}); useEffect(() => { settingsRef.current = { fit, pattern, pixelSize, levels, palette, inkColor, paperColor, contrast, brightness, revealRadius, softness, linger, rimColor, rim, reverse, wander, clickBurst }; wakeRef.current(); }); useEffect(() => { const container = containerRef.current; if (!container) return undefined; const reducedMotion = window.matchMedia?.('(prefers-reduced-motion: reduce)').matches; const renderer = new Renderer({ dpr: Math.min(window.devicePixelRatio || 1, 2), alpha: false, antialias: false }); const gl = renderer.gl; const canvas = gl.canvas; canvas.style.display = 'block'; canvas.style.width = '100%'; canvas.style.height = '100%'; container.appendChild(canvas); const gl2 = gl as WebGL2RenderingContext; const floatMask = renderer.isWebgl2 && !!renderer.getExtension('EXT_color_buffer_float'); const geometry = new Triangle(gl); const dataTexture = () => new Texture(gl, { image: new Uint8Array(4), width: 1, height: 1, generateMipmaps: false, flipY: false, minFilter: gl.NEAREST, magFilter: gl.NEAREST }); const imageTexture = new Texture(gl, { minFilter: gl.LINEAR_MIPMAP_LINEAR, magFilter: gl.LINEAR }); const noiseTexture = dataTexture(); const diffusedTexture = dataTexture(); const createMask = (w: number, h: number) => new RenderTarget(gl, { width: w, height: h, depth: false, type: floatMask ? gl2.HALF_FLOAT : gl.UNSIGNED_BYTE, internalFormat: floatMask ? gl2.RGBA16F : gl.RGBA, minFilter: gl.LINEAR, magFilter: gl.LINEAR }); const destroyMask = (target: RenderTarget) => { gl.deleteFramebuffer(target.buffer); gl.deleteTexture(target.texture.texture); }; let masks = [createMask(2, 2), createMask(2, 2)]; const maskUniforms = { tPrev: { value: masks[0].texture }, uSize: { value: [1, 1] }, uFrom: { value: [0, 0] }, uTo: { value: [0, 0] }, uRadius: { value: 1 }, uSoftness: { value: 0.5 }, uStrength: { value: 0 }, uFade: { value: 1 }, uHold: { value: HOLD } }; const viewUniforms = { tImage: { value: imageTexture }, tMask: { value: masks[0].texture }, tNoise: { value: noiseTexture }, tDiffused: { value: diffusedTexture }, uResolution: { value: [1, 1] }, uCover: { value: [1, 1] }, uLod: { value: 0 }, uCell: { value: 3 }, uPattern: { value: 0 }, uPalette: { value: 0 }, uLevels: { value: 2 }, uInk: { value: [0, 0, 0] }, uPaper: { value: [1, 1, 1] }, uRimColor: { value: [1, 1, 1] }, uRim: { value: 0 }, uContrast: { value: 1 }, uBrightness: { value: 0 }, uReverse: { value: 0 }, uIntro: { value: 0 }, uHold: { value: HOLD }, uMatte: { value: [0, 0, 0] }, uKey: { value: 0 }, uSize: { value: [1, 1] }, uBursts: { value: Array.from({ length: MAX_BURSTS * 4 }, () => 0) }, uBurstWidth: { value: 60 } }; const program = (fragment: string, uniforms: Record) => new Program(gl, { vertex, fragment, uniforms, depthTest: false, depthWrite: false }); const maskMesh = new Mesh(gl, { geometry, program: program(maskFragment, maskUniforms) }); const viewMesh = new Mesh(gl, { geometry, program: program(viewFragment, viewUniforms) }); const sampler = document.createElement('canvas'); const samplerContext = sampler.getContext('2d', { willReadFrequently: true }); let image: HTMLImageElement | null = null; let introStart = 0; let diffusedKey = ''; let diffusionBlocked = false; let width = 1; let height = 1; let visible = true; let raf = 0; let last = performance.now(); let trailUntil = 0; let presence = 0; let drift = 0; const pointer = { x: 0, y: 0, inside: false, fresh: true, placed: false }; const brush = { x: 0, y: 0, px: 0, py: 0 }; const bursts: { x: number; y: number; start: number }[] = []; const layout = () => { width = Math.max(1, container.clientWidth); height = Math.max(1, container.clientHeight); renderer.setSize(width, height); viewUniforms.uResolution.value = [canvas.width, canvas.height]; maskUniforms.uSize.value = [width, height]; viewUniforms.uSize.value = [width, height]; const mw = Math.max(2, Math.round(width * MASK_SCALE)); const mh = Math.max(2, Math.round(height * MASK_SCALE)); if (mw !== masks[0].width || mh !== masks[0].height) { masks.forEach(destroyMask); masks = [createMask(mw, mh), createMask(mw, mh)]; } if (!pointer.placed) { pointer.x = width / 2; pointer.y = height / 2; } }; const updateDiffusion = (cell: number, s: Settings) => { if (!image || !samplerContext) return; const cols = Math.ceil(canvas.width / cell); const rows = Math.ceil(canvas.height / cell); const key = [ s.pattern, s.levels, s.palette, s.contrast, s.brightness, s.fit, cols, rows, canvas.width, canvas.height ].join('|'); if (key === diffusedKey) return; diffusedKey = key; const [cx, cy] = viewUniforms.uCover.value; const iw = image.naturalWidth; const ih = image.naturalHeight; sampler.width = cols; sampler.height = rows; samplerContext.imageSmoothingEnabled = true; samplerContext.imageSmoothingQuality = 'high'; const [mr, mg, mb] = viewUniforms.uMatte.value; samplerContext.fillStyle = `rgb(${mr * 255}, ${mg * 255}, ${mb * 255})`; samplerContext.fillRect(0, 0, cols, rows); const sx = (0.5 - 0.5 * cx) * iw; const sy = (0.5 - 0.5 * cy) * ih; const sw = ((cols * cell) / canvas.width) * cx * iw; const sh = ((rows * cell) / canvas.height) * cy * ih; const x0 = Math.max(sx, 0); const y0 = Math.max(sy, 0); const x1 = Math.min(sx + sw, iw); const y1 = Math.min(sy + sh, ih); if (x1 > x0 && y1 > y0) { samplerContext.drawImage( image, x0, y0, x1 - x0, y1 - y0, ((x0 - sx) / sw) * cols, ((y0 - sy) / sh) * rows, ((x1 - x0) / sw) * cols, ((y1 - y0) / sh) * rows ); } const grade = (v: number) => Math.pow(Math.min(1, Math.max(0, (v - 0.5) * s.contrast + 0.5 + s.brightness)), 1.6); const pixels = samplerContext.getImageData(0, 0, cols, rows).data; diffusedTexture.image = diffuse(pixels, cols, rows, KERNELS[s.pattern], s.levels, s.palette === 'rgb', grade); diffusedTexture.width = cols; diffusedTexture.height = rows; diffusedTexture.needsUpdate = true; }; const frame = (now: number) => { raf = 0; const s = settingsRef.current; if (!s) return; const dt = Math.min(0.05, Math.max(0, (now - last) / 1000)); last = now; const wanderOn = s.wander && !reducedMotion; let targetX = pointer.x; let targetY = pointer.y; if (!pointer.inside && wanderOn) { drift = Math.min(1, drift + dt / 1.2); const [wx, wy] = wanderAt(now / 1000, width, height); const k = drift * drift * (3 - 2 * drift); targetX += (wx - targetX) * k; targetY += (wy - targetY) * k; } else { drift = 0; } presence += ((pointer.inside || wanderOn ? 1 : 0) - presence) * (1 - Math.exp(-dt / 0.16)); if (pointer.fresh) { brush.x = brush.px = targetX; brush.y = brush.py = targetY; pointer.fresh = false; } else { const follow = 1 - Math.exp(-dt / 0.035); brush.x += (targetX - brush.x) * follow; brush.y += (targetY - brush.y) * follow; } const burstData = viewUniforms.uBursts.value; burstData.fill(0); for (let i = bursts.length - 1; i >= 0; i--) { if ((now - bursts[i].start) / 1000 >= BURST_SECONDS) bursts.splice(i, 1); } bursts.forEach((b, i) => { const k = Math.max(0, (now - b.start) / 1000 / BURST_SECONDS); const reach = Math.hypot(Math.max(b.x, width - b.x), Math.max(b.y, height - b.y)) + viewUniforms.uBurstWidth.value; burstData[i * 4] = b.x; burstData[i * 4 + 1] = b.y; burstData[i * 4 + 2] = reach * Math.sin((k * Math.PI) / 2); burstData[i * 4 + 3] = 1 - k * k * k; }); if (presence > 0.002) trailUntil = now + s.linger * 1000 + 150; const minFade = floatMask ? 0 : 1.5 / 255; const fade = s.linger > 0 ? dt / s.linger : 1; maskUniforms.tPrev.value = masks[0].texture; maskUniforms.uFrom.value = [brush.px, brush.py]; maskUniforms.uTo.value = [brush.x, brush.y]; maskUniforms.uRadius.value = s.revealRadius * (0.45 + 0.55 * presence); maskUniforms.uSoftness.value = s.softness; maskUniforms.uStrength.value = presence; maskUniforms.uFade.value = Math.max(fade, minFade); viewUniforms.uBurstWidth.value = Math.max(60, s.revealRadius * 0.9); renderer.render({ scene: maskMesh, target: masks[1] }); masks.reverse(); brush.px = brush.x; brush.py = brush.y; const cell = Math.max(1, Math.round(s.pixelSize * renderer.dpr)); if (image) { viewUniforms.uCover.value = fitScale( canvas.width, canvas.height, image.naturalWidth, image.naturalHeight, s.fit === 'contain' ); } let patternIndex = ORDERED[s.pattern] ?? 0; if (KERNELS[s.pattern]) { patternIndex = 0; if (image && !diffusionBlocked) { try { updateDiffusion(cell, s); patternIndex = 3; } catch { diffusionBlocked = true; } } } if (patternIndex === 1 && noiseTexture.width !== 64) { noiseTexture.image = getBlueNoise(); noiseTexture.width = 64; noiseTexture.height = 64; noiseTexture.needsUpdate = true; } const texelsPerPixel = image ? (viewUniforms.uCover.value[0] * image.naturalWidth) / canvas.width : 1; viewUniforms.tMask.value = masks[0].texture; viewUniforms.uCell.value = cell; viewUniforms.uLod.value = Math.log2(Math.max(cell * texelsPerPixel, 1)); viewUniforms.uPattern.value = patternIndex; viewUniforms.uPalette.value = s.palette === 'rgb' ? 1 : 0; viewUniforms.uLevels.value = Math.max(2, Math.round(s.levels)); viewUniforms.uInk.value = hexToRgb(s.inkColor); viewUniforms.uPaper.value = hexToRgb(s.paperColor); viewUniforms.uRimColor.value = hexToRgb(s.rimColor); viewUniforms.uRim.value = Math.min(Math.max(s.rim, 0), 0.95); viewUniforms.uContrast.value = s.contrast; viewUniforms.uBrightness.value = s.brightness; viewUniforms.uReverse.value = s.reverse ? 1 : 0; const intro = image ? Math.min(1, (now - introStart) / INTRO_MS) : 0; viewUniforms.uIntro.value = 1 - Math.pow(1 - intro, 2); renderer.render({ scene: viewMesh }); const busy = pointer.inside || wanderOn || presence > 0.002 || bursts.length > 0 || now < trailUntil || (image && intro < 1); if (busy && visible) raf = requestAnimationFrame(frame); }; const wake = () => { if (raf || !visible) return; last = performance.now(); raf = requestAnimationFrame(frame); }; wakeRef.current = wake; const img = new Image(); img.crossOrigin = 'anonymous'; img.decoding = 'async'; img.onload = () => { image = img; imageTexture.image = img; try { if (samplerContext) { const edge = measureEdge(samplerContext, img); viewUniforms.uMatte.value = edge.matte; viewUniforms.uKey.value = edge.plain ? 1 : 0; } } catch {} introStart = performance.now(); wake(); }; img.src = src; const locate = (e: PointerEvent) => { const rect = container.getBoundingClientRect(); pointer.x = e.clientX - rect.left; pointer.y = e.clientY - rect.top; pointer.placed = true; }; const onMove = (e: PointerEvent) => { locate(e); if (!pointer.inside) { pointer.inside = true; pointer.fresh = true; } wake(); }; const onLeave = () => { pointer.inside = false; wake(); }; const onDown = (e: PointerEvent) => { onMove(e); if (!settingsRef.current?.clickBurst || (e.pointerType === 'mouse' && e.button !== 0)) return; bursts.push({ x: pointer.x, y: pointer.y, start: performance.now() }); if (bursts.length > MAX_BURSTS) bursts.shift(); }; container.addEventListener('pointermove', onMove, { passive: true }); container.addEventListener('pointerenter', onMove, { passive: true }); container.addEventListener('pointerdown', onDown, { passive: true }); container.addEventListener('pointerleave', onLeave, { passive: true }); container.addEventListener('pointercancel', onLeave, { passive: true }); const resizeObserver = new ResizeObserver(() => { layout(); wake(); }); resizeObserver.observe(container); const intersectionObserver = new IntersectionObserver(([entry]) => { visible = entry.isIntersecting; wake(); }); intersectionObserver.observe(container); layout(); wake(); return () => { cancelAnimationFrame(raf); wakeRef.current = () => {}; resizeObserver.disconnect(); intersectionObserver.disconnect(); img.onload = null; container.removeEventListener('pointermove', onMove); container.removeEventListener('pointerenter', onMove); container.removeEventListener('pointerdown', onDown); container.removeEventListener('pointerleave', onLeave); container.removeEventListener('pointercancel', onLeave); gl.getExtension('WEBGL_lose_context')?.loseContext(); if (canvas.parentNode) canvas.parentNode.removeChild(canvas); }; }, [src]); return

; }; export default DitherVeil;43:o76fd,e9:["$","$Leb",null,{"params":{"chatId":"lS7rpJmAQ3o"},"promises":{"attributes":"$@f5","externalMeta":"$@f6","latest":"$@f7","messagesRange":"$@f8","messages":"$@f9","template":"$@fa","gitStatus":"$@fb"},"children":["$","$Lfd",null,{"chatId":"lS7rpJmAQ3o","children":["$","$Lfe",null,{"seedOnlyKeys":["@\"chat:state\",\"lS7rpJmAQ3o\","],"data":{"block:output:initial":{"id":"b_rNMuwZtwjPe","result":"$@ff"},"/chat/api/snapshots/proxy?chatId=lS7rpJmAQ3o&messageId=dvfOE7WsgcF2OrEgbvePbPPsb0vsuiMw&v=v2":"$@100","@\"block:mappings\",\"lS7rpJmAQ3o\",":{"sqlBlockExecutionStates":"$Q101","blocksForkedFrom":"$Q102","blocksTemplateIds":"$Q103","blocksCreatedAt":"$Q104","blocksShared":"$Q105","blocksDeployed":"$Q106","blocksSubdomains":"$Q107","brandedBlocks":"$Q108","unlistedBlocks":"$Q109","blockOutputs":"$Q10a"},"@\"chat:state\",\"lS7rpJmAQ3o\",":{"messages":[{"content":{"type":"parts","parts":[],"version":1},"role":"user","id":"KRVsJJ8yRa0YZqUL0ue29IDOW6com261","type":"message","isContentLoading":true,"authorId":"","createdAt":"$D2026-09-24T13:14:36.760Z"},{"content":{"type":"message-binary-format","value":[[0,[["p",{},["text",{},"Loading..."]]]],[1,{"title":"Loading message"}]]},"loadingBlocks":[{"blockId":"b_rn7Vg8Uua6U","type":"code-project","isVersioned":false},{"blockId":"b_o5rp7ftn0bg","type":"code-project","isVersioned":true}],"isContentLoading":true,"role":"assistant","id":"uJ1SeYIokusKITi0Gpw7fX5i0BMvVuGV","v0ModelId":"v0-max","gitRevision":{"headSha":"5c3fa49d613d819469c3f1a9a93eb460ad4743be","readyAt":"2026-09-24T13:17:38.176Z","version":1,"commitMessage":"Initial commit from v0\n\nV0-Initial-Commit: v1"},"streaming":false,"finishReason":"stop","parentId":"KRVsJJ8yRa0YZqUL0ue29IDOW6com261","type":"message","createdAt":"$D2026-09-24T13:14:36.761Z"},{"content":{"type":"parts","parts":[],"version":1},"role":"user","id":"3wNuXdz4kd9AFj5DOqN6ovUOCYrMDk9R","parentId":"uJ1SeYIokusKITi0Gpw7fX5i0BMvVuGV","type":"message","isContentLoading":true,"authorId":"","createdAt":"$D2026-09-24T19:34:01.801Z"},{"content":{"type":"message-binary-format","value":[[0,[["p",{},["text",{},"Loading..."]]]],[1,{"title":"Loading message"}]]},"loadingBlocks":[{"blockId":"b_B9HwhepVlDV","type":"code-project","isVersioned":true}],"isContentLoading":true,"role":"assistant","id":"xsQ46nYL55VUzxIxSYeFJ0zOBEvyGsJP","v0ModelId":"v0-gpt-5.6-sol","gitRevision":{"baseSha":"5c3fa49d613d819469c3f1a9a93eb460ad4743be","headSha":"2032fc5b77a96d7faff1a2e046d3f87fece3bd00","readyAt":"2026-09-24T19:34:43.262Z","version":1,"commitMessage":"feat: update DitherVeil component with new image and reverse effect"},"streaming":false,"finishReason":"stop","parentId":"3wNuXdz4kd9AFj5DOqN6ovUOCYrMDk9R","type":"message","createdAt":"$D2026-09-24T19:34:01.802Z"},{"content":{"type":"parts","parts":[],"version":1},"role":"user","id":"7kTS2hNQgaPjtI19SJbQ8F5A1um5nID0","parentId":"xsQ46nYL55VUzxIxSYeFJ0zOBEvyGsJP","type":"message","isContentLoading":true,"authorId":"","createdAt":"$D2026-09-24T19:47:35.024Z"},{"content":{"type":"message-binary-format","value":[[0,[["p",{},["text",{},"Loading..."]]]],[1,{"title":"Loading message"}]]},"loadingBlocks":[{"blockId":"b_MdXa9tAPEh5","type":"code-project","isVersioned":false},{"blockId":"b_OCuvaIUWk55","type":"code-project","isVersioned":false},{"blockId":"b_PCQj8V5l3PA","type":"code-project","isVersioned":false},{"blockId":"b_pSGfqSlLNPo","type":"code-project","isVersioned":true}],"isContentLoading":true,"role":"assistant","id":"bIrH4UiOFgAiUYAnBq6OLrvuSB11uUeq","v0ModelId":"v0-gpt-5.6-sol","gitRevision":{"baseSha":"2032fc5b77a96d7faff1a2e046d3f87fece3bd00","headSha":"8ef7af841edb1779b26cbcb9954ae9d4e82b9d43","readyAt":"2026-09-24T19:49:22.804Z","version":1,"commitMessage":"feat: update metadata and add interactive 3D portrait hero component"},"streaming":false,"finishReason":"stop","parentId":"7kTS2hNQgaPjtI19SJbQ8F5A1um5nID0","type":"message","createdAt":"$D2026-09-24T19:47:35.025Z"},{"content":{"type":"parts","parts":[],"version":1},"role":"user","id":"oDcL5wauP3UTsHNoO3VO8CN5k1mqXruF","parentId":"bIrH4UiOFgAiUYAnBq6OLrvuSB11uUeq","type":"message","isContentLoading":true,"authorId":"","createdAt":"$D2026-09-24T21:26:05.142Z"},{"content":{"type":"message-binary-format","value":[[0,[["p",{},["text",{},"Loading..."]]]],[1,{"title":"Loading message"}]]},"loadingBlocks":[],"isContentLoading":true,"role":"assistant","id":"gJNBsnWN0rRJ9sGle1VsQieqSAJsU700","v0ModelId":"v0-max","gitRevision":{"baseSha":"8ef7af841edb1779b26cbcb9954ae9d4e82b9d43","headSha":"8ef7af841edb1779b26cbcb9954ae9d4e82b9d43","readyAt":"2026-09-24T21:26:31.082Z","version":1,"commitMessage":"Update from v0"},"streaming":false,"finishReason":"stop","parentId":"oDcL5wauP3UTsHNoO3VO8CN5k1mqXruF","type":"message","createdAt":"$D2026-09-24T21:26:05.143Z"},{"content":{"type":"parts","parts":[],"version":1},"role":"user","id":"l4XtoEt3XtftVH9VloiuRhHJq1Q6tFoB","parentId":"gJNBsnWN0rRJ9sGle1VsQieqSAJsU700","type":"message","isContentLoading":true,"authorId":"","createdAt":"$D2026-09-24T21:28:11.606Z"},{"content":{"type":"message-binary-format","value":[[0,[["p",{},["text",{},"Loading..."]]]],[1,{"title":"Loading message"}]]},"loadingBlocks":[],"isContentLoading":true,"role":"assistant","id":"49mJfub107fDDWpi0zc9C8U3PXW9eN7u","v0ModelId":"v0-max","gitRevision":{"baseSha":"8ef7af841edb1779b26cbcb9954ae9d4e82b9d43","headSha":"8ef7af841edb1779b26cbcb9954ae9d4e82b9d43","readyAt":"2026-09-24T21:28:45.273Z","version":1,"commitMessage":"Update from v0"},"streaming":false,"finishReason":"stop","parentId":"l4XtoEt3XtftVH9VloiuRhHJq1Q6tFoB","type":"message","createdAt":"$D2026-09-24T21:28:11.607Z"},{"content":{"type":"parts","parts":[{"type":"mdx","content":"import DitherVeil from './DitherVeil';\n\n

\n \n

"}],"version":1},"role":"user","id":"D0KO3Ri8xnE1whqa2nPLBCbZm5bzwsfQ","attachments":[],"parentId":"49mJfub107fDDWpi0zc9C8U3PXW9eN7u","type":"message","authorId":"wkEMV8zgQrglLBxBibp6UQGC","createdAt":"$D2026-09-24T21:29:29.375Z"},{"v0ModelId":"v0-max","content":{"type":"message-binary-format","value":[[0,[["AssistantMessageContentPart",{"part":{"createdAt":1790285376365,"finishedAt":1790285376424,"lastPartSentAt":1790285376424,"taskNameActive":null,"id":"KkZwyAKp5FNrCErB","type":"task-thinking-v1","parts":[{"type":"thinking-end","duration":0,"thought":"The user wants me to swap in this exact standalone example to replace the current 3D hero page. I should check the existing page.tsx first before making the change."}]}}],["p",{},["text",{},"You want the page to be the exact standalone example from the repo (replacing the 3D hero). Let me check the current page."]],["AssistantMessageContentPart",{"part":{"createdAt":1790285376455,"finishedAt":1790285376654,"lastPartSentAt":1790285376653,"taskNameActive":"Reading page","taskNameComplete":"Read page","toolCallId":"toolu_01HZhPrPcypksALduSpZkMTd","agentTurnId":"turn_8Sm4dRqeYu7PRXG0","filePath":null,"id":"GVaLC5OhnIOGKsdx","type":"task-read-file-v1","parts":[{"type":"reading-file","filePath":"/vercel/share/v0-project/app/page.tsx"}]}}],["AssistantMessageContentPart",{"part":{"createdAt":1790285381816,"finishedAt":1790285381858,"lastPartSentAt":1790285381859,"taskNameActive":null,"id":"tsc8KaJrrOLixWH1","type":"task-thinking-v1","parts":[{"type":"thinking-end","duration":0,"thought":"I should use the exact standalone example the user provided, swapping in the local component path but keeping the same props and Unsplash image source."}]}}],["AssistantMessageContentPart",{"part":{"type":"task-coding-v1","id":"block-b_kh3piQZg5Dg","parts":[{"type":"code-project","isVersioned":true,"isSourceless":false,"changedFiles":[{"fileName":"/app/page.tsx","baseName":"page.tsx","isActive":false,"isTerminated":false,"isDeleted":false,"isMoved":false}],"source":"[V0_FILE]tsx:file=\"/app/page.tsx\" \nGENERATING","latestDeploymentInfo":"$106:0:1","lastDeployedAt":"2026-09-24T21:30:07.463Z","sourceVersionKey":"v_1_434qq_s3","needsBlockSource":true,"isAllImages":false,"blockId":"b_kh3piQZg5Dg","meta":{"taskNameActive":"Writing exact example page","taskNameComplete":"Wrote exact example page","type":"code-project","id":"Code"},"closed":true,"lang":"typescriptreact"}],"createdAt":0,"finishedAt":1,"lastPartSentAt":1,"taskNameActive":"Writing exact example page","taskNameComplete":"Wrote exact example page"},"id":"block-b_kh3piQZg5Dg"}],["p",{},["text",{},"Let me verify the exact example renders correctly."]],["AssistantMessageContentPart",{"part":{"createdAt":1790285387627,"finishedAt":1790285397271,"lastPartSentAt":1790285397218,"taskNameActive":"Verifying exact example","taskNameComplete":"Verified exact example","toolCallId":"toolu_01FbE5Jn6emojEjaUxKXXAWn","agentTurnId":"turn_TaBP2kFCSuhNzlD9","filePath":null,"id":"jZXF4At1KKyIP82S","type":"task-subtask-v1","parts":[{"type":"subtask-started","data":{"subtaskType":"bash","command":"agent-browser close && agent-browser open --webgpu \"http://localhost:${DEV_PORT:-3000}\" && agent-browser set media dark && agent-browser set viewport 1366 1024 && agent-browser wait 2000 && agent-browser screenshot /tmp/agent-browser/dither-veil-exact.png && agent-browser errors","timeout":120000}},{"type":"subtask-log","data":{"logType":"created-terminal","terminalId":"browser-sandbox-e859537a-e42e-4305-afcb-7e8f92763aa7","taskId":"bash_browser-sandbox-e859537a-e42e-4305-afcb-7e8f92763aa7"},"id":"IGUIkYwRy0Rfe3L2"},{"type":"subtask-log","data":{"logType":"poll-terminal-output","delta":"ℹ The browser runtime was recreated, so this ran on a fresh browser — prior page state, settings, and console history are gone.\n✓ Digital Matter — Interactive Portrait\n http://localhost:3000/\n✓ Browser closed\n✓ Digital Matter — Interactive Portrait\n"},"id":"MHK5eBUAMP3Jkv2X"},{"type":"subtask-log","data":{"logType":"poll-terminal-output","delta":" http://localhost:3000/\n✓ Done\n✓ Done\n✓ Done\n✓ Screenshot saved to /tmp/agent-browser/dither-veil-exact.png\n\n[agent-browser] launched browser\n"},"id":"Gy8IsgSOacd3I9iP"},{"type":"agent-browser-screenshot","id":"bUMnfpwMbAtOpSwN","screenshotUrl":"https://uploads.vusercontent.net/a/eyJhbGciOiJkaXIiLCJlbmMiOiJBMjU2R0NNIn0..MTej0kHsZJe4ZvSV.YfYerft_8Xyz2zPUgBFQuHcUR_YcsQ3z_5X8JntjksI30LEMN4clR4z4PuFEz0adhJAf1LzeebajuCOO4o6YaS2L0uWxHLMp6cYNWcXhEy2ySSmoffO6T1AgihXvbD7zt553olB2vdaZ4zyOAI1mymHd2xxSb59MQRAv4TL2dkfreMQoFjb6zmXXqRzT6Q9CZq1-9lxJgeYJfA.XfZQEpzm5acXgmqQ1reHeQ","path":"/tmp/agent-browser/dither-veil-exact.png","browserUrl":null,"pageTitle":null,"width":1366,"height":1024}]}}],["p",{},["text",{},"The page now renders the exact standalone example from the repo. The Floyd-Steinberg dither veil displays the iridescent glass head portrait with "],["code",{},"reverse"],["text",{}," active (full color, dithering wherever the cursor moves), in a 600px-tall relative container, with no console errors."]],["p",{},["text",{},"Since the preview is mobile portrait, note the example uses a fixed "],["code",{},"height: '600px'"],["text",{}," and "],["code",{},"fit=\"contain\""],["text",{}," exactly as specified in the repo — so the image sits centered with paper/ink space around it. This is the verbatim example; let me know if you'd like it adapted to fill the mobile viewport instead."]]]],[1,{}]]},"context":[],"isContentLoading":false,"role":"assistant","id":"1cQxPe2UPVwMx6nARkKnCHhO73S0efUt","gitRevision":{"baseSha":"8ef7af841edb1779b26cbcb9954ae9d4e82b9d43","headSha":"759dcef0942b5e59d5a9918b003e6d3fcb094998","readyAt":"2026-09-24T21:30:07.457Z","version":1,"commitMessage":"feat: replace PortraitHero with DitherVeil component in page layout\n\nAdded advanced DitherVeil visual effects for enhanced user experience"},"streaming":false,"finishReason":"stop","parentId":"D0KO3Ri8xnE1whqa2nPLBCbZm5bzwsfQ","type":"message","creditCost":0.23325975,"workMetrics":{"diffMap":{},"linesRead":6,"agentActions":3},"createdAt":"$D2026-09-24T21:29:29.376Z","updatedAt":"$D2026-09-24T21:30:07.458Z"},{"content":{"type":"parts","parts":[{"type":"mdx","content":"$10b"}],"version":1},"role":"user","id":"dz1kuMxbp8cWMdzv9rkWhKtSJ0qqahrX","attachments":[],"parentId":"1cQxPe2UPVwMx6nARkKnCHhO73S0efUt","type":"message","authorId":"wkEMV8zgQrglLBxBibp6UQGC","createdAt":"$D2026-09-24T21:30:22.760Z"},{"v0ModelId":"v0-max","content":{"type":"message-binary-format","value":[[0,[["AssistantMessageContentPart",{"part":{"createdAt":1790285430110,"finishedAt":1790285431842,"lastPartSentAt":1790285431842,"taskNameActive":null,"id":"bfBNOfOLZYHsA8pJ","type":"task-thinking-v1","parts":[{"type":"thinking-end","duration":2,"thought":"I need to convert the DitherVeil component to TypeScript using Tailwind classes instead of the separate CSS file, so I'll create a new .tsx version, update the page import accordingly, and remove the old .jsx and .css files."}]}}],["p",{},["text",{},"The user has provided a TypeScript version that uses Tailwind classes instead of the CSS file. I'll replace the "],["code",{},".jsx"],["text",{}," component with this "],["code",{},".tsx"],["text",{}," version, drop the CSS file, and update the page import."]],["AssistantMessageContentPart",{"part":{"createdAt":1790285431920,"finishedAt":1790285432094,"lastPartSentAt":1790285432093,"taskNameActive":"Reading page","taskNameComplete":"Read page","toolCallId":"toolu_01TzsYuUqKDYHBWeqxWFzHRv","agentTurnId":"turn_sDAe9XqXCW9QSW2m","filePath":null,"id":"hVdSOqYELSTzh87I","type":"task-read-file-v1","parts":[{"type":"reading-file","filePath":"/vercel/share/v0-project/app/page.tsx"}]}}],["p",{},["text",{},"I'll replace the component with the TypeScript version, remove the now-unused CSS file, and keep the page import as-is (it already points to "],["code",{},"@/components/dither-veil"],["text",{},")."]],["AssistantMessageContentPart",{"part":{"type":"task-coding-v1","id":"block-b_M24PDVxdJaG","parts":[{"type":"code-project","isVersioned":true,"isSourceless":false,"changedFiles":[{"fileName":"/components/dither-veil.tsx","baseName":"dither-veil.tsx","isActive":false,"isTerminated":false,"isDeleted":false,"isMoved":false},{"fileName":"/components/dither-veil.jsx","baseName":"dither-veil.jsx","isActive":false,"isTerminated":false,"isDeleted":true,"isMoved":false},{"fileName":"/components/dither-veil.css","baseName":"dither-veil.css","isActive":false,"isTerminated":false,"isDeleted":true,"isMoved":false}],"source":"[V0_FILE]tsx:file=\"/components/dither-veil.tsx\" \nGENERATING\n[V0_FILE]jsx:file=\"/components/dither-veil.jsx\" isDeleted=\"true\"\nGENERATING\n[V0_FILE]css:file=\"/components/dither-veil.css\" isDeleted=\"true\"\nGENERATING","latestDeploymentInfo":"$106:1:1","lastDeployedAt":"2026-09-24T21:32:59.869Z","sourceVersionKey":"v_1_70ae6_s3","needsBlockSource":true,"isAllImages":false,"blockId":"b_M24PDVxdJaG","meta":{"taskNameActive":"Applying changes to 3 files","taskNameComplete":"Applied changes to 3 files","type":"code-project","id":"Code"},"closed":true,"lang":"typescriptreact"}],"createdAt":0,"finishedAt":1,"lastPartSentAt":1,"taskNameActive":"Applying changes to 3 files","taskNameComplete":"Applied changes to 3 files"},"id":"block-b_M24PDVxdJaG"}],["p",{},["text",{},"Now let me verify the TypeScript version compiles and renders correctly."]],["AssistantMessageContentPart",{"part":{"createdAt":1790285549170,"finishedAt":1790285555385,"lastPartSentAt":1790285555262,"taskNameActive":"Type-checking","taskNameComplete":"Type-checked","toolCallId":"toolu_01XTKKtWs34ft3M2J3CBumcc","agentTurnId":"turn_KZAY2DZyosXJQHm5","filePath":null,"id":"ds6RtNBKNhqqwuBM","type":"task-subtask-v1","parts":[{"type":"subtask-started","data":{"subtaskType":"bash","command":"cd /vercel/share/v0-project && pnpm exec tsc --noEmit 2>&1 | head -30","timeout":120000}},{"type":"subtask-log","data":{"logType":"created-terminal","terminalId":"cmd_e96ebd5d841f49adb3c7e9727c1d","taskId":"bash_cmd_e96ebd5d841f49adb3c7e9727c1d"},"id":"tpuWbwfloCUiCwjn"},{"type":"subtask-log","data":{"logType":"poll-terminal-output","delta":""},"id":"v6yuYE2WC0ggw4KP"}]}}],["p",{},["text",{},"TypeScript passes. Let me verify it renders in the browser."]],["AssistantMessageContentPart",{"part":{"createdAt":1790285559473,"finishedAt":1790285567375,"lastPartSentAt":1790285567331,"taskNameActive":"Verifying render","taskNameComplete":"Verified render","toolCallId":"toolu_01Ur61735jt5Sootn9Y1py7N","agentTurnId":"turn_LNkqaCoobXW7t9yy","filePath":null,"id":"HGLG69WtNXxNey0Y","type":"task-subtask-v1","parts":[{"type":"subtask-started","data":{"subtaskType":"bash","command":"agent-browser close && agent-browser open --webgpu \"http://localhost:${DEV_PORT:-3000}\" && agent-browser set media dark && agent-browser set viewport 1366 1024 && agent-browser wait 2000 && agent-browser screenshot /tmp/agent-browser/dither-veil-ts.png && agent-browser errors","timeout":120000}},{"type":"subtask-log","data":{"logType":"created-terminal","terminalId":"browser-sandbox-954648ef-4a60-4f41-b786-077c59702269","taskId":"bash_browser-sandbox-954648ef-4a60-4f41-b786-077c59702269"},"id":"zGRuULQ5LnqVFf2Q"},{"type":"subtask-log","data":{"logType":"poll-terminal-output","delta":"✓ Browser closed\n✓ Digital Matter — Interactive Portrait\n http://localhost:3000/\n✓ Done\n✓ Done\n✓ Done\n✓ Screenshot saved to /tmp/agent-browser/dither-veil-ts.png\n\n[agent-browser] launched browser\n"},"id":"my8PIkFCCNvHcBJP"},{"type":"agent-browser-screenshot","id":"YlpMDRI34MnR4biy","screenshotUrl":"https://uploads.vusercontent.net/a/eyJhbGciOiJkaXIiLCJlbmMiOiJBMjU2R0NNIn0..eCG6w7EWgTVO19zF.tEa6ACyzrvqWG4r_v7hrAswrvWugt575xE6upqw0MH3ptJeykRnDdjoLpqMFMUJtexSoQS2o42BhWA72UnVwXnqtBKJCTEk1vR7Uy3DnLVNrRm0PSGedn-q1VpmVnuyjbpWqQEOtbex9tKs5nNgUyLd5l8pzafQ8ZbrPdj5AvbO3MoRYJIcWdmO5jazceHZucLe9u45NZtjmXg.pWvidXELyoYjnN0eLR7FYQ","path":"/tmp/agent-browser/dither-veil-ts.png","browserUrl":null,"pageTitle":null,"width":1366,"height":1024}]}}],["p",{},["text",{},"The TypeScript conversion is done and verified. The iridescent glass-head portrait renders correctly with the Floyd-Steinberg dither veil, "],["code",{},"reverse"],["text",{}," active, and no console errors."]],["h2",{},["text",{},"Summary"]],["p",{},["text",{},"I swapped the component to the TypeScript version you provided:"]],["ul",{"start":1},["li",{"index":1},["strong",{},["code",{},"components/dither-veil.tsx"]],["text",{}," — new fully-typed component ("],["code",{},"DitherVeilProps"],["text",{}," interface, typed helpers, OGL/WebGL2 casts). I added "],["code",{},"'use client'"],["text",{}," at the top since it uses "],["code",{},"useEffect"],["text",{},", refs, and WebGL."]],["li",{"index":2},["strong",{},["text",{},"Removed"]],["text",{}," the old "],["code",{},"components/dither-veil.jsx"],["text",{}," and "],["code",{},"components/dither-veil.css"],["text",{},". The CSS is no longer needed — styling now lives in the Tailwind classes on the container ("],["code",{},"relative w-full h-full overflow-hidden touch-pan-y"],["text",{},")."]],["li",{"index":3},["text",{},"The page import ("],["code",{},"@/components/dither-veil"],["text",{},") resolves to the new "],["code",{},".tsx"],["text",{}," unchanged."]]],["p",{},["text",{},"TypeScript compiles cleanly ("],["code",{},"tsc --noEmit"],["text",{}," passes) and the veil renders as expected. One note for mobile: the example still uses a fixed "],["code",{},"height: '600px'"],["text",{}," with "],["code",{},"fit=\"contain\""],["text",{},", so on narrow screens the portrait sits centered with ink/paper space around it — let me know if you'd like it to fill the mobile viewport instead."]]]],[1,{}]]},"context":[],"isContentLoading":false,"role":"assistant","id":"WI5vpE1HfQMvG8EQlW82SXAUSlp8nnae","gitRevision":{"baseSha":"759dcef0942b5e59d5a9918b003e6d3fcb094998","headSha":"78537c78264ea1e9aee7f5ce6db0bde63017c76e","readyAt":"2026-09-24T21:32:59.865Z","version":1,"commitMessage":"refactor: migrate DitherVeil component to TypeScript and remove CSS file"},"streaming":false,"finishReason":"stop","parentId":"dz1kuMxbp8cWMdzv9rkWhKtSJ0qqahrX","type":"message","creditCost":0.81607225,"workMetrics":{"diffMap":{},"linesRead":29,"agentActions":6},"createdAt":"$D2026-09-24T21:30:22.761Z","updatedAt":"$D2026-09-24T21:32:59.865Z"},{"content":{"type":"parts","parts":[{"type":"mdx","content":"$10c"}],"version":1},"role":"user","id":"NlviPtrQQBLvNpQK3xxmZpA9ZVy24p8q","attachments":[],"parentId":"WI5vpE1HfQMvG8EQlW82SXAUSlp8nnae","type":"message","authorId":"wkEMV8zgQrglLBxBibp6UQGC","createdAt":"$D2026-09-24T21:32:58.895Z"},{"v0ModelId":"v0-max","content":{"type":"message-binary-format","value":[[0,[["p",{},["text",{},"This is the CSS-based version of the same TypeScript component. I'll switch back: recreate the CSS file and update the component to use "],["code",{},".dither-veil"],["text",{}," class with the CSS import."]],["AssistantMessageContentPart",{"part":{"type":"task-coding-v1","id":"block-b_nYnfCpdpxix","parts":[{"type":"code-project","isVersioned":false,"isSourceless":false,"changedFiles":[{"fileName":"/components/dither-veil.css","baseName":"dither-veil.css","isActive":false,"isTerminated":false,"isDeleted":false,"isMoved":false}],"source":"[V0_FILE]css:file=\"/components/dither-veil.css\" \nGENERATING","latestDeploymentInfo":"$106:2:1","lastDeployedAt":"2026-09-24T21:33:45.087Z","sourceVersionKey":"v_1_sh6l6_s3","needsBlockSource":true,"isAllImages":false,"blockId":"b_nYnfCpdpxix","meta":{"taskNameActive":"Restoring CSS file","taskNameComplete":"Restored CSS file","type":"code-project","id":"Code"},"closed":true,"lang":"typescriptreact"}],"createdAt":0,"finishedAt":1,"lastPartSentAt":1,"taskNameActive":"Restoring CSS file","taskNameComplete":"Restored CSS file"},"id":"block-b_nYnfCpdpxix"}],["p",{},["text",{},"Now let me update the component to use the CSS import and class name."]],["AssistantMessageContentPart",{"part":{"type":"task-coding-v1","id":"block-b_uDT03DnvvAk","parts":[{"type":"code-project","isVersioned":false,"isSourceless":false,"changedFiles":[{"fileName":"/components/dither-veil.tsx","baseName":"dither-veil.tsx","isActive":false,"isTerminated":false,"isDeleted":false,"isMoved":false}],"source":"[V0_FILE]tsx:file=\"/components/dither-veil.tsx\" \nGENERATING","latestDeploymentInfo":"$106:3:1","lastDeployedAt":"2026-09-24T21:33:45.087Z","sourceVersionKey":"v_1_68t1b_s3","needsBlockSource":true,"isAllImages":false,"blockId":"b_uDT03DnvvAk","meta":{"taskNameActive":"Updating component import","taskNameComplete":"Updated component import","type":"code-project","id":"Code"},"closed":true,"lang":"typescriptreact"}],"createdAt":0,"finishedAt":1,"lastPartSentAt":1,"taskNameActive":"Updating component import","taskNameComplete":"Updated component import"},"id":"block-b_uDT03DnvvAk"}],["p",{},["text",{},"Now let me update the last CSS class reference and the block that returns it. Let me check the last useEffect line in the return — the component I wrote earlier used Tailwind classes on the container. Let me fix that."]],["AssistantMessageContentPart",{"part":{"type":"task-coding-v1","id":"block-b_rNMuwZtwjPe","parts":[{"type":"code-project","isVersioned":true,"isSourceless":false,"changedFiles":[{"fileName":"/components/dither-veil.css","baseName":"dither-veil.css","isActive":false,"isTerminated":false,"isDeleted":false,"isMoved":false},{"fileName":"/components/dither-veil.tsx","baseName":"dither-veil.tsx","isActive":false,"isTerminated":false,"isDeleted":false,"isMoved":false}],"source":"$10d","latestDeploymentInfo":"$106:4:1","lastDeployedAt":"2026-09-24T22:25:40.375Z","sourceVersionKey":"v_1_7sd2r_s3","needsBlockSource":false,"isAllImages":false,"blockId":"b_rNMuwZtwjPe","meta":{"taskNameActive":"Updating container class","taskNameComplete":"Updated container class","type":"code-project","id":"Code"},"closed":true,"lang":"typescriptreact"}],"createdAt":0,"finishedAt":1,"lastPartSentAt":1,"taskNameActive":"Updating container class","taskNameComplete":"Updated container class"},"id":"block-b_rNMuwZtwjPe"}],["p",{},["text",{},"Now let me verify the CSS version compiles and renders."]],["AssistantMessageContentPart",{"part":{"createdAt":1790285599043,"finishedAt":1790285604324,"lastPartSentAt":1790285604174,"taskNameActive":"Type-checking","taskNameComplete":"Type-checked","toolCallId":"toolu_011Y2qU5n45BWR7S87p5iwLk","agentTurnId":"turn_4IAXW56CG5B7AvqM","filePath":null,"id":"a04fiO6sjWd2GRCN","type":"task-subtask-v1","parts":[{"type":"subtask-started","data":{"subtaskType":"bash","command":"cd /vercel/share/v0-project && pnpm exec tsc --noEmit","timeout":120000}},{"type":"subtask-log","data":{"logType":"created-terminal","terminalId":"cmd_d4fd0dced89f49b49cd53f1cb588","taskId":"bash_cmd_d4fd0dced89f49b49cd53f1cb588"},"id":"Y4UslMnm2iW3Y4pl"},{"type":"subtask-log","data":{"logType":"poll-terminal-output","delta":""},"id":"EPda7XadlSqOzy83"}]}}],["p",{},["text",{},"TypeScript passes. Let me verify it renders in the browser."]],["AssistantMessageContentPart",{"part":{"createdAt":1790285608100,"finishedAt":1790285615871,"lastPartSentAt":1790285615824,"taskNameActive":"Verifying CSS version","taskNameComplete":"Verified CSS version","toolCallId":"toolu_01WCPezYFHBF9JJWBxqatnEa","agentTurnId":"turn_z25RcDrFspoaLNpf","filePath":null,"id":"Ktbl93J2Jc1JPbdU","type":"task-subtask-v1","parts":[{"type":"subtask-started","data":{"subtaskType":"bash","command":"agent-browser close && agent-browser open --webgpu \"http://localhost:${DEV_PORT:-3000}\" && agent-browser set media dark && agent-browser set viewport 1366 1024 && agent-browser wait 2000 && agent-browser screenshot /tmp/agent-browser/dither-veil-css.png && agent-browser errors","timeout":120000}},{"type":"subtask-log","data":{"logType":"created-terminal","terminalId":"browser-sandbox-049e4b5e-1053-4fa0-874a-2fc4fb27ad29","taskId":"bash_browser-sandbox-049e4b5e-1053-4fa0-874a-2fc4fb27ad29"},"id":"Iwy7N4V5PEgFtrVk"},{"type":"subtask-log","data":{"logType":"poll-terminal-output","delta":"✓ Browser closed\n✓ Digital Matter — Interactive Portrait\n http://localhost:3000/\n✓ Done\n✓ Done\n✓ Done\n✓ Screenshot saved to /tmp/agent-browser/dither-veil-css.png\n\n[agent-browser] launched browser\n"},"id":"GMCgK84yyVrwR2hq"},{"type":"agent-browser-screenshot","id":"ChOIXmAaQkDt1PWJ","screenshotUrl":"https://uploads.vusercontent.net/a/eyJhbGciOiJkaXIiLCJlbmMiOiJBMjU2R0NNIn0..uI-aSwD2cTRLusu3.TlcPp-B0HAuNh0pryfZ1q2gjCw2BtGWYGbnyMmzo3a7o183YRlJWHVjZz9hBqC6VRFCEudKJFE2iNaUcx1aGfthCb5y7dg6eK1gHm-gjHB8lPqCXr7WyOCz_JGWRlRR0w13KwXUelaqrGgPqkcwno_qyG7YjStyBOQxRdOzJjaZjjQpjumOc8yQXyVK9plDlLeeRMudgA7kEkA.U5Jjs1A8nFvdVgXi85GvVQ","path":"/tmp/agent-browser/dither-veil-css.png","browserUrl":null,"pageTitle":null,"width":1366,"height":1024}]}}],["p",{},["text",{},"Switched back to the CSS version. The component now imports "],["code",{},"./dither-veil.css"],["text",{}," and uses the "],["code",{},".dither-veil"],["text",{}," class, and I recreated the CSS file with the original styles. TypeScript passes and it renders correctly with no console errors."]],["p",{},["text",{},"One thing worth flagging on mobile: the example's fixed "],["code",{},"height: '600px'"],["text",{}," with "],["code",{},"fit=\"contain\""],["text",{}," leaves empty black space below the portrait on tall screens (visible in the screenshot). That's the verbatim repo example behavior — let me know if you'd like the container to fill the mobile viewport instead so there's no dead space."]]]],[1,{}]]},"context":[],"isContentLoading":false,"role":"assistant","id":"dvfOE7WsgcF2OrEgbvePbPPsb0vsuiMw","gitRevision":{"baseSha":"78537c78264ea1e9aee7f5ce6db0bde63017c76e","headSha":"21a67715094f5f6d0312d4990f32f0f47663f9c0","readyAt":"2026-09-24T21:33:45.082Z","version":1,"commitMessage":"feat: add CSS file and update DitherVeil component 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