I tweak a bit of https://threejs.org/examples/?q=fra#webgl_framebuffer_texture 's code
and show texture on main section on 80% right and left 20% of side bar.
and on side bar, there’s a button which call function to alert("!")
but when click button to call alert, it’s not working. I think button click itself is not working.
below is full code , can anyone check why button click is not working ?
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - framebuffer - texture</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 {
background:#777;
padding:0;
margin:0;
overflow:hidden;
}
#info {
position: absolute;
top: 0px;
width: 100%;
color: #ffffff;
padding: 5px;
font-family:Monospace;
font-size:13px;
text-align:center;
}
a {
color: #ffffff;
}
#overlay {
position: fixed;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
height: 100%;
width: 100%;
top: 0;
z-index: 999;
}
#overlay > div {
height: 128px;
width: 128px;
border: 1px solid white;
}
</style>
<script src="//code.jquery.com/jquery-3.2.1.min.js"></script>
<script src="./three.min.js"></script>
<script src="./OrbitControls.js"></script>
</head>
<body>
<div id="leftSide" onclick="randomCube()" style="width: 20%;
height: -webkit-fill-available;
float: left;
background-color: aliceblue;">
<h1>Hello
</h1>
<span>발생기{title}</span>
<button onclick="randomCube()">click to generate</button>
</div>
<div class="main" id="main" style="width: 80%;
float: right;">
</div>
<div id="overlay">
<div>
</div>
</div>
<script>
var camera, scene, renderer;
var mesh, sprite, texture;
var cameraOrtho, sceneOrtho;
var dpr = window.devicePixelRatio;
var textureSize = 128 * dpr;
var vector = new THREE.Vector2();
init();
animate();
function randomCube(){
alert("!")
const RADIUS = 40
const geometrys = new THREE.OctahedronGeometry(RADIUS, 0);
var object = new THREE.Mesh( geometrys, new THREE.MeshLambertMaterial( { color: Math.random() * 0xffffff } ) );
object.position.x = 0
object.position.y = 0
object.position.z = 0;
object.castShadow = true;
object.receiveShadow = true;
scene.add( object );
}
function init() {
//
var width = window.innerWidth;
var height = window.innerHeight;
camera = new THREE.PerspectiveCamera( 70, width / height, 1, 1000 );
camera.position.z = 20;
cameraOrtho = new THREE.OrthographicCamera( - width / 2, width / 2, height / 2, - height / 2, 1, 10 );
cameraOrtho.position.z = 10;
scene = new THREE.Scene();
scene.background = new THREE.Color( 0x20252f );
sceneOrtho = new THREE.Scene();
// mini screen shown upper -left side of main screen.
var geometry = new THREE.TorusKnotBufferGeometry( 3, 1, 256, 32 );
var material = new THREE.MeshStandardMaterial( { color: 0x6083c2 } );
mesh = new THREE.Mesh( geometry, material );
console.log(mesh);
scene.add( mesh );
//
var ambientLight = new THREE.AmbientLight( 0xcccccc, 0.4 );
scene.add( ambientLight );
var pointLight = new THREE.PointLight( 0xffffff, 0.8 );
camera.add( pointLight );
scene.add( camera );
//
var data = new Uint8Array( textureSize * textureSize * 3 );
texture = new THREE.DataTexture( data, textureSize, textureSize, THREE.RGBFormat );
texture.minFilter = THREE.NearestFilter;
texture.magFilter = THREE.NearestFilter;
texture.needsUpdate = true;
//
var spriteMaterial = new THREE.SpriteMaterial( { map: texture } );
sprite = new THREE.Sprite( spriteMaterial );
sprite.scale.set( textureSize, textureSize, 1 );
sceneOrtho.add( sprite );
updateSpritePosition();
//
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.autoClear = false;
$(".main").append( renderer.domElement );
//
var overlay = document.getElementById( 'overlay' );
var controls = new THREE.OrbitControls( camera, overlay );
controls.enablePan = false;
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
var width = window.innerWidth;
var height = window.innerHeight;
camera.aspect = width / height;
camera.updateProjectionMatrix();
cameraOrtho.left = - width / 2;
cameraOrtho.right = width / 2;
cameraOrtho.top = height / 2;
cameraOrtho.bottom = - height / 2;
cameraOrtho.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
updateSpritePosition();
}
function updateSpritePosition() {
var halfWidth = window.innerWidth / 2;
var halfHeight = window.innerHeight / 2;
var halfImageWidth = textureSize / 2;
var halfImageHeight = textureSize / 2;
sprite.position.set( - halfWidth + halfImageWidth, halfHeight - halfImageHeight, 1 );
}
function animate() {
requestAnimationFrame( animate );
// mesh.rotation.x += 0.005;
mesh.rotation.y += 0.005;
renderer.clear();
renderer.render( scene, camera );
// calculate start position for copying data
vector.x = ( window.innerWidth * dpr / 2 ) - ( textureSize / 2 );
vector.y = ( window.innerHeight * dpr / 2 ) - ( textureSize / 2 );
renderer.copyFramebufferToTexture( vector, texture );
renderer.clearDepth();
renderer.render( sceneOrtho, cameraOrtho );
}
</script>
</body>
</html>
