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Learning how to build shapes

feature-big-polytopes
Mike Lynch 2023-07-22 13:24:42 +10:00
parent 7d7cd25d52
commit cb0f0fb2bd
2 changed files with 66 additions and 8 deletions
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2
index.html
View File

@ -2,7 +2,7 @@
<html>
<head lang="en">
<meta charset="utf-8">
<title>My first three.js app</title>
<title>Wack ass 3d</title>
<style>
body { margin: 0; }
</style>

72
main.js
View File

@ -1,5 +1,42 @@
import * as THREE from 'three';
const NODE_SIZE = 0.2;
const LINK_SIZE = 0.1;
function makeShape(graph) {
const nodeids = {}
const group = new THREE.Group();
for ( const n of graph.nodes ) {
nodeids[n.id] = [ n.x, n.y, n.z ];
const geometry = new THREE.SphereGeometry(NODE_SIZE, NODE_SIZE,NODE_SIZE);
const material = new THREE.MeshBasicMaterial({color: 0x00ff00});
const sphere = new THREE.Mesh(geometry, material);
group.add(sphere);
sphere.x = n.x;
sphere.y = n.y;
sphere.z = n.z;
}
return group;
}
// const shape = makeShape({
// nodes: [
// { id: 1, x: -10, y: -10, z: -10 },
// { id: 2, x: 10, y: 10, z: 10}
// ],
// links: [
// { id: 1, source: 1, target: 1 }
// ]
// });
const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );
@ -7,20 +44,41 @@ const renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
const geometry = new THREE.BoxGeometry( 1, 1, 1 );
const material = new THREE.MeshBasicMaterial( { color: 0x00ff00 } );
const cube = new THREE.Mesh( geometry, material );
scene.add( cube );
// const geometry = new THREE.BoxGeometry( 1, 1, 1 );
// const material = new THREE.MeshBasicMaterial( { color: 0x00ff00 } );
// const cube = new THREE.Mesh( geometry, material );
// scene.add( cube );
const group = new THREE.Group();
const sphere_g = new THREE.SphereGeometry( 1 );
const sphere_m = new THREE.MeshBasicMaterial( { color: 0x33ff00 } );
const sphere = new THREE.Mesh( sphere_g, sphere_m );
group.add( sphere );
const cyl_g = new THREE.CylinderGeometry( 0.2, 0.2, 4 );
const cyl_m = new THREE.MeshBasicMaterial( { color: 0x009930 } );
const cyl = new THREE.Mesh( cyl_g, cyl_m );
group.add( cyl );
scene.add(group);
camera.position.z = 5;
let tick = 0;
function animate() {
requestAnimationFrame( animate );
cube.rotation.x += 0.01;
cube.rotation.y += 0.01;
group.rotation.x = tick;
group.rotation.y = tick;
cyl.position.y = Math.sin(tick * 10) * 0.4;
cyl.rotation.x = tick * 2;
tick += 0.01;
renderer.render( scene, camera );
}
animate();