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iot/projects/StudyCenter/wwwroot/lib/three.js/examples/webgl_materials_compile.html

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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - node material</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
color: #fff;
font-family:Monospace;
font-size:13px;
margin: 0px;
text-align:center;
overflow: hidden;
}
#info {
color: #fff;
position: absolute;
top: 10px;
width: 100%;
text-align: center;
display:block;
}
#waitScreen {
color: #000;
position: absolute;
top: 50%;
left: 50%;
margin-top: -50px;
margin-left: -50px;
width: 100px;
height: 100px;
}
.hide {
display:none;
}
a { color: white }
</style>
</head>
<body>
<div id="container"></div>
<div id="info">
<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - Node-Based Material
<br /><span class="button" id="preload">change preload</span>
</div>
<div id="waitScreen">
Loading ...
</div>
<script src="../build/three.js"></script>
<script src='js/geometries/TeapotBufferGeometry.js'></script>
<script src="js/controls/OrbitControls.js"></script>
<script src="js/libs/dat.gui.min.js"></script>
<script type="module">
import './js/nodes/THREE.Nodes.js';
var container = document.getElementById( 'container' );
var renderer, scene, camera, clock = new THREE.Clock(), fov = 50;
var frame = new THREE.NodeFrame();
var teapot;
var controls;
var rtTexture, rtMaterial;
var meshes = [];
document.getElementById( "preload" ).addEventListener( 'click', function () {
var hash = document.location.hash.substr( 1 );
if ( hash.length === 0 ) {
window.location.hash = "#NoPreLoad";
} else {
window.location.hash = "";
}
location.reload( true );
}, false );
window.addEventListener( 'load', init );
function init() {
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera( fov, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.x = 0;
camera.position.z = - 300;
camera.position.y = 200;
camera.target = new THREE.Vector3();
controls = new THREE.OrbitControls( camera, renderer.domElement );
controls.minDistance = 50;
controls.maxDistance = 400;
scene.add( new THREE.AmbientLight( 0x464646 ) );
var light = new THREE.DirectionalLight( 0xffddcc, 1 );
light.position.set( 1, 0.75, 0.5 );
scene.add( light );
var light = new THREE.DirectionalLight( 0xccccff, 1 );
light.position.set( - 1, 0.75, - 0.5 );
scene.add( light );
teapot = new THREE.TeapotBufferGeometry( 15, 18 );
var itemsonrow = 10;
for ( var i = 0; i < itemsonrow * itemsonrow; i ++ ) {
var mesh = new THREE.Mesh( teapot );
mesh.position.x = 50 * ( i % itemsonrow ) - 50 * itemsonrow / 2;
mesh.position.z = 50 * Math.floor( i / itemsonrow ) - 150;
updateMaterial( mesh );
scene.add( mesh );
meshes.push( mesh );
}
window.addEventListener( 'resize', onWindowResize, false );
var hash = document.location.hash.substr( 1 );
if ( hash.length === 0 ) {
renderer.compile( scene, camera );
}
document.getElementById( "waitScreen" ).className = "hide";
setTimeout( function () {
onWindowResize();
animate();
}, 1 );
}
function updateMaterial( mesh ) {
if ( mesh.material ) mesh.material.dispose();
if ( rtTexture ) {
rtTexture.dispose();
rtTexture = null;
}
if ( rtMaterial ) {
rtMaterial.dispose();
rtMaterial = null;
}
var mtl = new THREE.PhongNodeMaterial();
var time = new THREE.TimerNode();
var speed = new THREE.FloatNode( Math.random() );
var color = new THREE.ColorNode( Math.random() * 0xFFFFFF );
var timeSpeed = new THREE.OperatorNode(
time,
speed,
THREE.OperatorNode.MUL
);
var sinCycleInSecs = new THREE.OperatorNode(
timeSpeed,
new THREE.ConstNode( THREE.ConstNode.PI2 ),
THREE.OperatorNode.MUL
);
var cycle = new THREE.Math1Node( sinCycleInSecs, THREE.Math1Node.SIN );
var cycleColor = new THREE.OperatorNode(
cycle,
color,
THREE.OperatorNode.MUL
);
var cos = new THREE.Math1Node( cycleColor, THREE.Math1Node.SIN );
mtl.color = new THREE.ColorNode( 0 );
mtl.emissive = cos;
var transformer = new THREE.ExpressionNode( "position + 0.0 * " + Math.random(), "vec3", [ ] );
mtl.transform = transformer;
// build shader ( ignore auto build )
mtl.build();
// set material
mesh.material = mtl;
}
function onWindowResize() {
var width = window.innerWidth, height = window.innerHeight;
camera.aspect = width / height;
camera.updateProjectionMatrix();
renderer.setSize( width, height );
if ( rtTexture ) rtTexture.setSize( width, height );
}
function animate() {
var delta = clock.getDelta();
frame.update( delta );
for ( var i = 0; i < meshes.length; i ++ ) {
var mesh = meshes[ i ];
frame.updateNode( mesh.material );
}
renderer.render( scene, camera );
requestAnimationFrame( animate );
}
</script>
</body>
</html>