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Examples: Clean up webgl_instancing_raycast.html #23000

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Merged
merged 2 commits into from
Dec 23, 2021
Merged

Examples: Clean up webgl_instancing_raycast.html #23000

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feeb4ed
Clean up
WestLangley Dec 11, 2021
2be8323
Updated screenshot
WestLangley Dec 11, 2021
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45 changes: 27 additions & 18 deletions examples/webgl_instancing_raycast.html
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@
import { GUI } from './jsm/libs/lil-gui.module.min.js';
import { OrbitControls } from "./jsm/controls/OrbitControls.js";

let camera, scene, renderer, stats;
let camera, scene, renderer, controls, stats;

let mesh;
const amount = parseInt( window.location.search.substr( 1 ) ) || 10;
Expand All @@ -25,6 +25,7 @@
const mouse = new THREE.Vector2( 1, 1 );

const color = new THREE.Color();
const white = new THREE.Color().setHex( 0xffffff );

init();
animate();
Expand All @@ -37,16 +38,12 @@

scene = new THREE.Scene();

const light1 = new THREE.HemisphereLight( 0xffffff, 0x000088 );
light1.position.set( - 1, 1.5, 1 );
scene.add( light1 );

const light2 = new THREE.HemisphereLight( 0xffffff, 0x880000, 0.5 );
light2.position.set( - 1, - 1.5, - 1 );
scene.add( light2 );
const light = new THREE.HemisphereLight( 0xffffff, 0x888888 );
light.position.set( 0, 1, 0 );
scene.add( light );

const geometry = new THREE.IcosahedronGeometry( 0.5, 3 );
const material = new THREE.MeshPhongMaterial();
const material = new THREE.MeshPhongMaterial( { color: 0xffffff } );

mesh = new THREE.InstancedMesh( geometry, material, count );

Expand Down Expand Up @@ -86,7 +83,10 @@
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );

new OrbitControls( camera, renderer.domElement );
controls = new OrbitControls( camera, renderer.domElement );
controls.enableDamping = true;
controls.enableZoom = false;
controls.enablePan = false;

stats = new Stats();
document.body.appendChild( stats.dom );
Expand Down Expand Up @@ -118,11 +118,7 @@

requestAnimationFrame( animate );

render();

}

function render() {
controls.update();

raycaster.setFromCamera( mouse, camera );

Expand All @@ -132,17 +128,30 @@

const instanceId = intersection[ 0 ].instanceId;

mesh.setColorAt( instanceId, color.setHex( Math.random() * 0xffffff ) );
mesh.instanceColor.needsUpdate = true;
mesh.getColorAt( instanceId, color );

if ( color.equals( white ) ) {

mesh.setColorAt( instanceId, color.setHex( Math.random() * 0xffffff ) );

mesh.instanceColor.needsUpdate = true;

}

}

renderer.render( scene, camera );
render();

stats.update();

}

function render() {

renderer.render( scene, camera );

}

</script>
</body>
</html>