hallucinatory-phantasmagoria/index.html at main · QC20/hallucinatory-phantasmagoria · GitHub

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<!DOCTYPE html>
<!--
  *****~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*****

    Created by Jonas Kjeldmand Jensen
    February 2026

    "Hallucinatory Phantasmagoria"

    A real-time generative shader experience rendered entirely on the GPU
    via WebGL2. The fragment shader constructs an infinite, looping
    abstract landscape by mapping screen-space coordinates into a
    logarithmic-polar domain, then folding, distorting, and recolouring
    the result with time-driven transformations. Colour is derived from
    procedural hue functions and luminance-based tone mapping, producing
    saturated, dreamlike forms that ripple and breathe across the screen.

    The piece fills the full browser viewport and is designed to be viewed
    full-screen. An optional live GLSL editor (toggle with Ctrl+L or the
    controls in the top-right corner) lets you inspect and modify the
    shader source in real time.

  *****~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*****
-->
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Hallucinatory Phantasmagoria</title>
  <link rel="stylesheet" href="src/styles/style.css">
</head>
<body>
  <canvas id="canvas"></canvas>
  <textarea id="codeEditor" class="editor" spellcheck="false" autocorrect="off" autocapitalize="off" translate="no" oninput="render()"></textarea>
  <pre id="error"></pre>
  <div id="indicator"></div>
  <div id="controls">
    <div class="controls">
      <input id="btnToggleView" class="icon" type="checkbox" name="toggleView" onclick="toggleView()">
      <input id="btnToggleResolution" class="icon" type="checkbox" name="toggleResolution" onchange="toggleResolution()">
      <input id="btnReset" class="icon" type="checkbox" name="reset" onclick="reset()">
    </div>
  </div>

  <script src="src/javascript/script.js"></script>
</body>
</html>