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Jan 4, 2025
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Examples: Add raycaster helper external demo. #30262

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3 changes: 2 additions & 1 deletion examples/files.json
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Expand Up @@ -514,7 +514,8 @@
"misc_exporter_usdz",
"misc_exporter_exr",
"misc_exporter_ktx2",
"misc_lookat"
"misc_lookat",
"misc_raycaster_helper"
],
"css2d": [
"css2d_label"
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112 changes: 112 additions & 0 deletions examples/misc_raycaster_helper.html
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@@ -0,0 +1,112 @@
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js misc - raycaster - helper</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://threejs.org" target="_blank" rel="noopener">three.js</a> - raycaster - helper<br/>
See external <a href="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/gsimone/things?tab=readme-ov-file#raycasterhelper" target="_blank" rel="noopener">RaycasterHelper</a> for more information.
</div>

<script type="importmap">
{
"imports": {
"three": "../build/three.webgpu.js",
"three/webgpu": "../build/three.webgpu.js",
"three/tsl": "../build/three.tsl.js",
"three/addons/": "./jsm/"
}
}
</script>

<script type="module">

import * as THREE from 'three';
import { RaycasterHelper } from 'https://cdn.jsdelivr.net/npm/@gsimone/[email protected]/dist/gsimone-three-raycaster-helper.esm.js';

let scene, renderer;
let camera, clock;

let capsule1, capsule2, capsule3;
let raycaster, raycasterHelper;

init();

function init() {

renderer = new THREE.WebGPURenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setAnimationLoop( animate );
document.body.appendChild( renderer.domElement );

//

camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.z = 10;

scene = new THREE.Scene();
clock = new THREE.Clock();

//

const geometry = new THREE.CapsuleGeometry( 0.5, 0.5, 4, 32 );
const material = new THREE.MeshNormalMaterial();
material.side = THREE.DoubleSide;

capsule1 = new THREE.Mesh( geometry, material );
capsule1.position.x = - 2;
capsule2 = new THREE.Mesh( geometry, material );
capsule2.position.x = 0;
capsule3 = new THREE.Mesh( geometry, material );
capsule3.position.x = 2;

scene.add( capsule1 );
scene.add( capsule2 );
scene.add( capsule3 );

raycaster = new THREE.Raycaster( new THREE.Vector3( - 4, 0, 0 ), new THREE.Vector3( 1, 0, 0 ) );
raycaster.near = 1;
raycaster.far = 8;
raycasterHelper = new RaycasterHelper( raycaster );
scene.add( raycasterHelper );

//

window.addEventListener( 'resize', onWindowResize );

}

function onWindowResize() {

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

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

}

function animate() {

[ capsule1, capsule2, capsule3 ].forEach( capsule => {

capsule.position.y = Math.sin( clock.getElapsedTime() * 0.5 + capsule.position.x );
capsule.rotation.z = Math.sin( clock.getElapsedTime() * 0.5 ) * Math.PI * 1;

} );

raycasterHelper.hits = raycaster.intersectObjects( scene.children );
raycasterHelper.update();

renderer.render( scene, camera );

}

</script>

</body>
</html>
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1 change: 1 addition & 0 deletions examples/tags.json
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Expand Up @@ -5,6 +5,7 @@
"misc_controls_orbit": [ "rotation" ],
"misc_controls_trackball": [ "rotation" ],
"misc_controls_transform": [ "scale", "rotate", "translate" ],
"misc_raycaster_helper": [ "external" ],
"physics_ammo_cloth": [ "integration" ],
"physics_jolt_instancing": [ "external" ],
"physics_rapier_instancing": [ "external" ],
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