ParticleDesignerViewer/index.html at main · gameatp/ParticleDesignerViewer · GitHub

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<!DOCTYPE html>
<html lang="en">
	<head>
		<title>ParticleDesignerViewer</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<link type="text/css" rel="stylesheet" href="main.css">
	</head>
	<body>
        <div id="info">
			<a href="https://easyshow.xyz/ParticleDesigner/" target="_blank" rel="noopener">ParticleDesigner</a> - Viewer<br />
		</div>

		<script type="importmap">
			{
				"imports": {
					"three": "./lib/three.module.js"
				}
			}
		</script>

		<script type="module">

			import * as THREE from 'three';
			import { OrbitControls } from './lib/OrbitControls.js';
            import ParticleNode from "./ParticleNode.js"

			let camera, scene, renderer, defaultParticleNode;

            let clock = new THREE.Clock();
			init();

			function init() {

				const container = document.createElement( 'div' );
				document.body.appendChild( container );

				camera = new THREE.PerspectiveCamera( 55, window.innerWidth / window.innerHeight, 0.25, 300 );
				camera.position.set(0, 2, 20 );

				scene = new THREE.Scene();


                let gridLines = new THREE.GridHelper(20, 20, 0x111111, 0x444444);
                scene.add(gridLines);
				const geometry = new THREE.BufferGeometry();
				let position = [];
				for (var i = 0; i < 12000; i++) {
					let x = THREE.MathUtils.randFloatSpread(1200);
					let y = THREE.MathUtils.randFloatSpread(1200);
					let z = THREE.MathUtils.randFloatSpread(1200);
					if (Math.sqrt(x * x + y * y + z * z) > 200)
					position.push(x, y , z);
				}
				geometry.setAttribute( 'position', new THREE.Float32BufferAttribute( position, 3 ) );
				var particles = new THREE.Points(geometry, new THREE.PointsMaterial({
					color: 0x888888,
					size: 1.0
				}));
				gridLines.add(particles);

                defaultParticleNode = new ParticleNode();
                defaultParticleNode.loadFromUrl("./data/particle_data1.json");
                scene.add(defaultParticleNode);


				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.outputColorSpace = THREE.LinearSRGBColorSpace;
				renderer.toneMapping = THREE.NoToneMapping;
				renderer.toneMappingExposure = 1.0;

				container.appendChild( renderer.domElement );
                renderer.setAnimationLoop( render );

				const controls = new OrbitControls( camera, renderer.domElement );
				controls.target.set( 0, 0, - 0.2 );
				controls.update();

				window.addEventListener( 'resize', onWindowResize );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

				render();

			}

			//

			function render() {
                var delta = clock.getDelta();
                defaultParticleNode.update(delta);
				renderer.render( scene, camera );

			}


		</script>

	</body>
</html>