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physics_oimo_instancing.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Verge3D physics - OimoPhysics instancing</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<body>
<div id="info">
<a href="https://www.soft8soft.com/verge3d" target="_blank" rel="noopener">Verge3D</a> physics - OimoPhysics instancing
</div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"v3d": "../build/v3d.module.js",
"v3d/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as v3d from 'v3d';
import { OrbitControls } from 'v3d/addons/controls/OrbitControls.js';
import { OimoPhysics } from 'v3d/addons/physics/OimoPhysics.js';
import Stats from 'v3d/addons/libs/stats.module.js';
let camera, scene, renderer, stats;
let physics, position;
let boxes, spheres;
init();
async function init() {
physics = await OimoPhysics();
position = new v3d.Vector3();
//
camera = new v3d.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 0.1, 100);
camera.position.set(- 1, 1.5, 2);
camera.lookAt(0, 0.5, 0);
scene = new v3d.Scene();
scene.background = new v3d.Color(0x666666);
const hemiLight = new v3d.HemisphereLight();
hemiLight.intensity = 0.35;
scene.add(hemiLight);
const dirLight = new v3d.DirectionalLight();
dirLight.position.set(5, 5, 5);
dirLight.castShadow = true;
dirLight.shadow.camera.zoom = 2;
scene.add(dirLight);
const floor = new v3d.Mesh(
new v3d.BoxGeometry(10, 5, 10),
new v3d.ShadowMaterial({ color: 0x111111 })
);
floor.position.y = -2.5;
floor.receiveShadow = true;
scene.add(floor);
physics.addMesh(floor);
//
const material = new v3d.MeshLambertMaterial();
const matrix = new v3d.Matrix4();
const color = new v3d.Color();
// Boxes
const geometryBox = new v3d.BoxGeometry(0.1, 0.1, 0.1);
boxes = new v3d.InstancedMesh(geometryBox, material, 100);
boxes.instanceMatrix.setUsage(v3d.DynamicDrawUsage); // will be updated every frame
boxes.castShadow = true;
boxes.receiveShadow = true;
scene.add(boxes);
for (let i = 0; i < boxes.count; i++) {
matrix.setPosition(Math.random() -0.5, Math.random() * 2, Math.random() -0.5);
boxes.setMatrixAt(i, matrix);
boxes.setColorAt(i, color.setHex(0xffffff * Math.random()));
}
physics.addMesh(boxes, 1);
// Spheres
const geometrySphere = new v3d.IcosahedronGeometry(0.075, 3);
spheres = new v3d.InstancedMesh(geometrySphere, material, 100);
spheres.instanceMatrix.setUsage(v3d.DynamicDrawUsage); // will be updated every frame
spheres.castShadow = true;
spheres.receiveShadow = true;
scene.add(spheres);
for (let i = 0; i < spheres.count; i++) {
matrix.setPosition(Math.random() -0.5, Math.random() * 2, Math.random() -0.5);
spheres.setMatrixAt(i, matrix);
spheres.setColorAt(i, color.setHex(0xffffff * Math.random()));
}
physics.addMesh(spheres, 1);
//
renderer = new v3d.WebGLRenderer({ antialias: true });
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.shadowMap.enabled = true;
renderer.outputEncoding = v3d.sRGBEncoding;
document.body.appendChild(renderer.domElement);
stats = new Stats();
document.body.appendChild(stats.dom);
//
const controls = new OrbitControls(camera, renderer.domElement);
controls.target.y = 0.5;
controls.update();
animate();
}
function animate() {
requestAnimationFrame(animate);
//
let index = Math.floor(Math.random() * boxes.count);
position.set(0, Math.random() + 1, 0);
physics.setMeshPosition(boxes, position, index);
//
index = Math.floor(Math.random() * spheres.count);
position.set(0, Math.random() + 1, 0);
physics.setMeshPosition(spheres, position, index);
renderer.render(scene, camera);
stats.update();
}
</script>
</body>
</html>