webgpu_rtt.html 3.5 KB

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  1. <html lang="en">
  2. <head>
  3. <title>three.js - WebGPU - RTT</title>
  4. <meta charset="utf-8">
  5. <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
  6. <link type="text/css" rel="stylesheet" href="main.css">
  7. </head>
  8. <body>
  9. <div id="info">
  10. <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> WebGPU - RTT
  11. </div>
  12. <script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
  13. <script type="importmap">
  14. {
  15. "imports": {
  16. "three": "../build/three.module.js",
  17. "three/addons/": "./jsm/",
  18. "three/nodes": "./jsm/nodes/Nodes.js"
  19. }
  20. }
  21. </script>
  22. <script type="module">
  23. import * as THREE from 'three';
  24. import { texture, uniform, vec2, MeshBasicNodeMaterial } from 'three/nodes';
  25. import WebGPU from 'three/addons/capabilities/WebGPU.js';
  26. import WebGPURenderer from 'three/addons/renderers/webgpu/WebGPURenderer.js';
  27. let camera, scene, renderer;
  28. const mouse = new THREE.Vector2();
  29. let cameraFX, sceneFX, renderTarget;
  30. let box;
  31. const dpr = window.devicePixelRatio;
  32. init();
  33. function init() {
  34. if ( WebGPU.isAvailable() === false ) {
  35. document.body.appendChild( WebGPU.getErrorMessage() );
  36. throw new Error( 'No WebGPU support' );
  37. }
  38. camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.1, 10 );
  39. camera.position.z = 4;
  40. scene = new THREE.Scene();
  41. scene.background = new THREE.Color( 0x222222 );
  42. // textured mesh
  43. const loader = new THREE.TextureLoader();
  44. const uvTexture = loader.load( './textures/uv_grid_opengl.jpg' );
  45. const geometryBox = new THREE.BoxGeometry();
  46. const materialBox = new MeshBasicNodeMaterial();
  47. materialBox.colorNode = texture( uvTexture );
  48. //
  49. box = new THREE.Mesh( geometryBox, materialBox );
  50. scene.add( box );
  51. //
  52. renderer = new WebGPURenderer( { antialias: true } );
  53. renderer.setPixelRatio( dpr );
  54. renderer.setSize( window.innerWidth, window.innerHeight );
  55. renderer.setAnimationLoop( animate );
  56. document.body.appendChild( renderer.domElement );
  57. renderTarget = new THREE.RenderTarget( window.innerWidth * dpr, window.innerHeight * dpr );
  58. window.addEventListener( 'mousemove', onWindowMouseMove );
  59. window.addEventListener( 'resize', onWindowResize );
  60. // FX
  61. cameraFX = new THREE.OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
  62. sceneFX = new THREE.Scene();
  63. const geometryFX = new THREE.PlaneGeometry( 2, 2 );
  64. // modulate the final color based on the mouse position
  65. const screenFXNode = uniform( mouse ).add( vec2( 0.5, 0.5 ) );
  66. const materialFX = new MeshBasicNodeMaterial();
  67. materialFX.colorNode = texture( renderTarget.texture ).mul( screenFXNode );
  68. const quad = new THREE.Mesh( geometryFX, materialFX );
  69. sceneFX.add( quad );
  70. }
  71. function onWindowMouseMove( e ) {
  72. mouse.x = e.offsetX / screen.width;
  73. mouse.y = e.offsetY / screen.height;
  74. }
  75. function onWindowResize() {
  76. camera.aspect = window.innerWidth / window.innerHeight;
  77. camera.updateProjectionMatrix();
  78. renderer.setSize( window.innerWidth, window.innerHeight );
  79. renderTarget.setSize( window.innerWidth * dpr, window.innerHeight * dpr );
  80. }
  81. function animate() {
  82. box.rotation.x += 0.01;
  83. box.rotation.y += 0.02;
  84. renderer.setRenderTarget( renderTarget );
  85. renderer.render( scene, camera );
  86. renderer.setRenderTarget( null );
  87. renderer.render( sceneFX, cameraFX );
  88. }
  89. </script>
  90. </body>
  91. </html>