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+<html lang="en">
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+ <head>
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+ <title>three.js webgpu - procedural texture</title>
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+ <meta charset="utf-8">
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+ <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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+ <link type="text/css" rel="stylesheet" href="main.css">
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+ </head>
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+ <body>
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+
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+ <div id="info">
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+ <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgpu - procedural texture
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+ </div>
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+
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+ <script type="importmap">
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+ {
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+ "imports": {
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+ "three": "../build/three.webgpu.js",
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+ "three/tsl": "../build/three.webgpu.js",
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+ "three/addons/": "./jsm/"
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+ }
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+ }
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+ </script>
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+
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+ <script type="module">
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+
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+ import * as THREE from 'three';
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+ import { checker, uv, uniform } from 'three/tsl';
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+
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+ import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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+
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+ let camera, scene, renderer;
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+
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+ init();
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+ render();
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+
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+ function init() {
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+
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+ const aspect = window.innerWidth / window.innerHeight;
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+ camera = new THREE.OrthographicCamera( - aspect, aspect, 1, - 1, 0, 2 );
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+ camera.position.z = 1;
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+
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+ scene = new THREE.Scene();
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+
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+ // procedural to texture
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+
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+ const uvScale = uniform( 4 );
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+ const blurAmount = uniform( .5 );
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+
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+ const procedural = checker( uv().mul( uvScale ) );
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+ const proceduralToTexture = procedural.toTexture( 512, 512 ); // ( width, height ) <- texture size
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+
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+ const colorNode = proceduralToTexture.gaussianBlur( blurAmount, 10 );
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+
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+ // extra
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+
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+ //proceduralToTexture.autoUpdate = false; // update just once
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+ //proceduralToTexture.textureNeedsUpdate = true; // manually update
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+
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+ // scene
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+
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+ const material = new THREE.MeshBasicNodeMaterial();
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+ material.colorNode = colorNode;
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+
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+ const plane = new THREE.Mesh( new THREE.PlaneGeometry( 1, 1 ), material );
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+ scene.add( plane );
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+
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+ // renderer
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+
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+ renderer = new THREE.WebGPURenderer( { antialias: true } );
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+ renderer.setPixelRatio( window.devicePixelRatio );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+ renderer.setAnimationLoop( render );
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+ document.body.appendChild( renderer.domElement );
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+
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+ window.addEventListener( 'resize', onWindowResize );
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+
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+ // gui
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+
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+ const gui = new GUI();
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+ gui.add( uvScale, 'value', 1, 10 ).name( 'uv scale ( before rtt )' );
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+ gui.add( blurAmount, 'value', 0, 2 ).name( 'blur amount ( after rtt )' );
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+ gui.add( proceduralToTexture, 'autoUpdate' ).name( 'auto update' );
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+
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+ }
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+
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+ function onWindowResize() {
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+
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ const aspect = window.innerWidth / window.innerHeight;
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+
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+ const frustumHeight = camera.top - camera.bottom;
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+
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+ camera.left = - frustumHeight * aspect / 2;
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+ camera.right = frustumHeight * aspect / 2;
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+
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+ camera.updateProjectionMatrix();
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+
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+ }
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+
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+ function render() {
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+
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+ renderer.renderAsync( scene, camera );
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+
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+ }
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+
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+ </script>
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+ </body>
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+</html>
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sunag
