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<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="maximum-scale=1, width=device-width, initial-scale=1, user-scalable=0">
  <title>WebGPU LUT Filter Playground</title>
  <meta name="description" content="Use WebGPU to render images based on LUT filter images">
  <meta name="keywords" content="webgpu, lut, filter, playground">
</head>
<body>
  <style>
    #canvas {
      max-width: 100%;
      max-height: 100%;
    }
  </style>
​
  <script src="https://unpkg.com/lut-filter/webgpu.js"></script>
​
  <p>Select Render Image: <input type="file" id="renderInput" accept="image/*"/></p>
  <p>Select LUT Image: <input type="file" id="lutInput" accept="image/*"/></p>
  <p><button onclick="render()">Render</button></p>
  <p><canvas id="canvas"></canvas></p>
  <script>
    const renderInputElement = document.querySelector('#renderInput')
    const lutInputElement = document.querySelector('#lutInput')
    const canvasElement = document.querySelector('#canvas')
​
    async function render () {
      if (renderInputElement.files.length !== 1) {
        alert('Please select render picture')
        return
      }
​
      if (lutInputElement.files.length !== 1) {
        alert('Please select lut picture')
        return
      }
​
      const renderSrc = window.webkitURL.createObjectURL(renderInputElement.files[0])
      const renderImage = new Image()
      renderImage.src = renderSrc
      await new Promise(resolve => renderImage.onload = resolve)
​
      const lutSrc = window.webkitURL.createObjectURL(lutInputElement.files[0])
      const lutImage = new Image()
      lutImage.src = lutSrc
      await new Promise(resolve => lutImage.onload = resolve)
​
      window.lutFilter({
        canvas: canvasElement,
        image: renderImage,
        filterImage: lutImage
      })
    }
  </script>
</body>
</html>
​
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lijialiangpro
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