import { FlutedGlass } from '@paper-design/shaders-react';
import './demo.css';

<FlutedGlass
  colorShadow="#92aae3"
  size={0.85}
  shadows={0.4}
  highlights={0}
  distortion={0.15}
  edges={0}
  marginRight={0.1}
  marginTop={0.1}
  marginBottom={0.5}
>
  <div className="demo">
    <div className="bg" />
    <div className="scroller">
      <article>
        <h1>Fluted glass</h1>
        <span className="hint">
          scroll down
          <span>↓</span>
        </span>
        <p>Live HTML, bent by a shader.</p>
        <p>Pick a flute shape:</p>
        <div className="shapes">
          <button name="distortionShape" value="prism" aria-pressed onClick={(event) => setParam(event.currentTarget.name, event.currentTarget.value)}>prism</button>
          <button name="distortionShape" value="lens" aria-pressed={false} onClick={(event) => setParam(event.currentTarget.name, event.currentTarget.value)}>lens</button>
          <button name="distortionShape" value="contour" aria-pressed={false} onClick={(event) => setParam(event.currentTarget.name, event.currentTarget.value)}>contour</button>
          <button name="distortionShape" value="cascade" aria-pressed={false} onClick={(event) => setParam(event.currentTarget.name, event.currentTarget.value)}>cascade</button>
          <button name="distortionShape" value="flat" aria-pressed={false} onClick={(event) => setParam(event.currentTarget.name, event.currentTarget.value)}>flat</button>
        </div>
        <p>Tune the glass:</p>
        <div className="dials">
          <label>
            size
            <input type="range" name="size" min={0} max={1} step={0.01} value={0.85} onChange={(event) => setParam(event.currentTarget.name, event.currentTarget.valueAsNumber)} />
            <output>0.85</output>
          </label>
          <label>
            distortion
            <input type="range" name="distortion" min={0} max={1} step={0.01} value={0.15} onChange={(event) => setParam(event.currentTarget.name, event.currentTarget.valueAsNumber)} />
            <output>0.15</output>
          </label>
          <label>
            shift
            <input type="range" name="shift" min={-1} max={1} step={0.01} value={0} onChange={(event) => setParam(event.currentTarget.name, event.currentTarget.valueAsNumber)} />
            <output>0.00</output>
          </label>
        </div>
        <p>
          Still real text:
          <kbd>⌘+F</kbd>
          finds it, dragging selects it.
        </p>
      </article>
    </div>
  </div>
</FlutedGlass>

.demo { position: relative; height: 100%; color: #fff; overflow: hidden; timeline-scope: --demo-scroll }
.demo .bg { position: absolute; inset: 0; height: 300%; background: url(/images/html-in-canvas/succulents.jpg) center top / cover; filter: brightness(0.7); animation: bg-pan linear both; animation-timeline: --demo-scroll; animation-range: 0px 4000px }
.demo ::selection { background: #ffd60a; color: #1a1a1a }
.demo .scroller { height: 100%; overflow-y: auto; scrollbar-width: none; scroll-timeline: --demo-scroll; position: relative; container-type: scroll-state }
.demo .scroller::after { content: ""; display: block; height: 60% }
.demo article { max-width: 1400px; padding: 180px 8% 0; font-family: system-ui; text-transform: uppercase }
.demo h1 { margin: 0; opacity: 0.8; font-size: 180px; line-height: 0.85; letter-spacing: -0.03em }
.demo p { max-width: 80%; margin: 4% 0; font-size: 44px }
.demo .shapes { display: flex; flex-wrap: wrap; gap: 12px; margin: -2% 0 8% }
.demo .shapes button { padding: 0.35em 0.9em; border: 2px solid rgb(255 255 255 / 50%); border-radius: 999px; background: none; color: inherit; font: inherit; font-size: 30px; text-transform: inherit; cursor: pointer }
.demo .shapes button:hover { border-color: #fff }
.demo .shapes button[aria-pressed="true"] { border-color: #ffd60a; background: #ffd60a; color: #1a1a1a }
.demo .dials { display: grid; grid-template-columns: auto 1fr 4ch; align-items: center; gap: 20px 32px; max-width: 80%; margin: -1% 0 8%; font-size: 30px }
.demo .dials label { display: contents }
.demo .dials output { text-align: right; font-variant-numeric: tabular-nums }
.demo input[type="range"] { appearance: none; min-width: 0; height: 36px; margin: 0; background: linear-gradient(transparent calc(50% - 1px), rgb(255 255 255 / 50%) 0 calc(50% + 1px), transparent 0); cursor: pointer }
.demo input[type="range"]::-webkit-slider-thumb { appearance: none; width: 28px; height: 28px; border-radius: 50%; background: #ffd60a }
.demo input[type="range"]:hover::-webkit-slider-thumb { scale: 1.15 }
.demo kbd { padding: 0.05em 0.35em; border: 2px solid rgb(255 255 255 / 60%); border-bottom-width: 4px; border-radius: 0.25em; font: inherit; font-size: 0.85em }
.demo .hint { position: fixed; bottom: 15px; right: 20px; display: flex; align-items: center; font-size: 22px; animation: hint-fade linear both; animation-timeline: --demo-scroll; animation-range: 0 16px }
.demo .hint span { display: inline-block; padding-left: 0.5em; animation: hint-bounce 1.2s ease-in-out infinite }
@keyframes bg-pan { to { transform: translateY(-2000px) } }
@keyframes hint-fade { to { opacity: 0 } }
@container scroll-state(scrollable: top) { .demo .hint span { animation: none } }
@keyframes hint-bounce { 50% { transform: translateY(8px) } }

Shader Props

Common Props