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aframe-demo.html
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aframe-demo.html
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<html>
<head>
<script src="https://aframe.io/releases/1.3.0/aframe.min.js"></script>
<script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
<script src="https://unpkg.com/[email protected]/examples/js/geometries/DecalGeometry.js"></script>
<script src="https://unpkg.com/[email protected]/examples/js/controls/OrbitControls.js"></script>
<style>
body {
background-color: black;
}
</style>
</head>
<body>
<a-scene three-click>
<a-light type="ambient" color="#222222" position="20 20 20"></a-light>
<a-light type="directional" color="#ffffff" position="20 20 0"></a-light>
<a-entity
id="sphere"
position="5 12 18"
geometry="primitive:sphere;radius:5;segmentsWidth:12;segmentsHeight:8;"
material="flatShading:true;color:#00ffff;"
line ="start: 0 0 0; end: 20 0 0; color: red;"
line__2="start: 0 0 0; end: 0 20 0; color: green"
line__3="start: 0 0 0; end: 0 0 20; color: blue"
></a-entity>
<a-entity rotation="0 90 0" position="20 20 20">
<a-camera
camera="fov:40;aspect:window.innerWidth / window.innerHeight;near:1;far:1000;"
>
<a-entity
cursor
raycaster="objects: #sphere"
position="0 0 -1"
material="color: black; shader: flat">
</a-entity>
<!-- geometry="primitive: ring; radiusInner: 0.02; radiusOuter: 0.03" -->
</a-camera>
</a-entity>
</a-scene>
</body>
<script>
AFRAME.registerComponent('three-click', {
init() {
let sphereMesh = document.querySelector('#sphere').object3D.children[0];
let helper = new THREE.Object3D();
let decalMaterial = new THREE.MeshBasicMaterial( {
// color: 'red',
depthWrite: false,
polygonOffset: true,
polygonOffsetFactor: - 4,
map: new THREE.TextureLoader().load('https://cdn.glitch.global/a5690e54-af54-41cd-85d9-b745739e4a11/00055.png?v=1664334108075'),
});
let scene = AFRAME.scenes[0].object3D;
let mouse = new THREE.Vector2();
function onClick( event ) {
event.preventDefault();
mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
console.log(event)
// raycaster.setFromCamera( mouse, camera );
// var intersects = raycaster.intersectObject( mesh );
let intersects = [];
if (event.detail.intersection) {
// has face, faceIndex, distance
intersects.push(event.detail.intersection);
}
if ( intersects.length > 0 ) {
var n = intersects[ 0 ].face.normal.clone();
n.transformDirection( sphereMesh.matrixWorld );
n.add( intersects[ 0 ].point );
helper.position.copy( intersects[ 0 ].point );
helper.lookAt( n );
var position = intersects[ 0 ].point;
var size = new THREE.Vector3( 1, 1, 1 );
var decalGeometry = new THREE.DecalGeometry( sphereMesh, position, helper.rotation, size );
var decal = new THREE.Mesh( decalGeometry, decalMaterial );
scene.add( decal );
}
}
document.addEventListener( 'click', onClick );
}
})
</script>
<script>
/* import * as THREE from "https://threejs.org/build/three.module.js";
import { OrbitControls } from "https://threejs.org/examples/jsm/controls/OrbitControls.js";
import { DecalGeometry } from "https://threejs.org/examples/jsm/geometries/DecalGeometry.js";
*/
// from: https://discourse.threejs.org/t/good-and-relatively-simple-examples-of-decalgeometry/13089
// from: https://jsfiddle.net/zrq6unge/1/
var mesh, renderer, scene, camera, controls;
var mouse, raycaster, helper, decalMaterial;
// init();
// animate();
function init() {
// renderer
renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setPixelRatio( window.devicePixelRatio );
document.body.appendChild( renderer.domElement );
// scene
scene = new THREE.Scene();
// camera
camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 10000 );
camera.position.set( 20, 20, 20 );
// controls
controls = new THREE.OrbitControls( camera, renderer.domElement );
// ambient
scene.add( new THREE.AmbientLight( 0x222222 ) );
// light
var light = new THREE.DirectionalLight( 0xffffff, 1 );
light.position.set( 20,20, 0 );
scene.add( light );
// axes
scene.add( new THREE.AxesHelper( 20 ) );
// geometry
var geometry = new THREE.SphereGeometry( 5, 12, 8 );
// material
var material = new THREE.MeshPhongMaterial( {
color: 0x00ffff,
flatShading: true,
} );
// mesh
mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
// decal related stuff
mouse = new THREE.Vector2();
raycaster = new THREE.Raycaster();
helper = new THREE.Object3D();
decalMaterial = new THREE.MeshBasicMaterial( { color: 'red', depthWrite: false, polygonOffset: true, polygonOffsetFactor: - 4, } );
document.addEventListener( 'click', onClick );
}
function onClick( event ) {
event.preventDefault();
mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
raycaster.setFromCamera( mouse, camera );
var intersects = raycaster.intersectObject( mesh );
if ( intersects.length > 0 ) {
var n = intersects[ 0 ].face.normal.clone();
n.transformDirection( mesh.matrixWorld );
n.add( intersects[ 0 ].point );
helper.position.copy( intersects[ 0 ].point );
helper.lookAt( n );
var position = intersects[ 0 ].point;
var size = new THREE.Vector3( 1, 1, 1 );
var decalGeometry = new THREE.DecalGeometry( mesh, position, helper.rotation, size );
var decal = new THREE.Mesh( decalGeometry, decalMaterial );
scene.add( decal );
}
}
function animate() {
requestAnimationFrame( animate );
renderer.render( scene, camera );
}
</script>
</html>