You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
223 lines
5.2 KiB
223 lines
5.2 KiB
2 years ago
|
<!DOCTYPE html>
|
||
|
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>three.js webgl - interactive - voxel painter</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">
|
||
|
|
<style>
|
||
|
|
body {
|
||
|
|
background-color: #f0f0f0;
|
||
|
|
color: #444;
|
||
|
|
}
|
||
|
|
a {
|
||
|
|
color: #08f;
|
||
|
|
}
|
||
|
|
</style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
|
||
|
|
<div id="info">
|
||
|
|
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - voxel painter - webgl<br>
|
||
|
|
<strong>click</strong>: add voxel, <strong>shift + click</strong>: remove voxel
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<!-- Import maps polyfill -->
|
||
|
|
<!-- Remove this when import maps will be widely supported -->
|
||
|
|
<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
|
||
|
|
|
||
|
|
<script type="importmap">
|
||
|
|
{
|
||
|
|
"imports": {
|
||
|
|
"three": "../build/three.module.js",
|
||
|
|
"three/addons/": "./jsm/"
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<script type="module">
|
||
|
|
|
||
|
|
import * as THREE from 'three';
|
||
|
|
|
||
|
|
let camera, scene, renderer;
|
||
|
|
let plane;
|
||
|
|
let pointer, raycaster, isShiftDown = false;
|
||
|
|
|
||
|
|
let rollOverMesh, rollOverMaterial;
|
||
|
|
let cubeGeo, cubeMaterial;
|
||
|
|
|
||
|
|
const objects = [];
|
||
|
|
|
||
|
|
init();
|
||
|
|
render();
|
||
|
|
|
||
|
|
function init() {
|
||
|
|
|
||
|
|
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 10000 );
|
||
|
|
camera.position.set( 500, 800, 1300 );
|
||
|
|
camera.lookAt( 0, 0, 0 );
|
||
|
|
|
||
|
|
scene = new THREE.Scene();
|
||
|
|
scene.background = new THREE.Color( 0xf0f0f0 );
|
||
|
|
|
||
|
|
// roll-over helpers
|
||
|
|
|
||
|
|
const rollOverGeo = new THREE.BoxGeometry( 50, 50, 50 );
|
||
|
|
rollOverMaterial = new THREE.MeshBasicMaterial( { color: 0xff0000, opacity: 0.5, transparent: true } );
|
||
|
|
rollOverMesh = new THREE.Mesh( rollOverGeo, rollOverMaterial );
|
||
|
|
scene.add( rollOverMesh );
|
||
|
|
|
||
|
|
// cubes
|
||
|
|
|
||
|
|
cubeGeo = new THREE.BoxGeometry( 50, 50, 50 );
|
||
|
|
cubeMaterial = new THREE.MeshLambertMaterial( { color: 0xfeb74c, map: new THREE.TextureLoader().load( 'textures/square-outline-textured.png' ) } );
|
||
|
|
|
||
|
|
// grid
|
||
|
|
|
||
|
|
const gridHelper = new THREE.GridHelper( 1000, 20 );
|
||
|
|
scene.add( gridHelper );
|
||
|
|
|
||
|
|
//
|
||
|
|
|
||
|
|
raycaster = new THREE.Raycaster();
|
||
|
|
pointer = new THREE.Vector2();
|
||
|
|
|
||
|
|
const geometry = new THREE.PlaneGeometry( 1000, 1000 );
|
||
|
|
geometry.rotateX( - Math.PI / 2 );
|
||
|
|
|
||
|
|
plane = new THREE.Mesh( geometry, new THREE.MeshBasicMaterial( { visible: false } ) );
|
||
|
|
scene.add( plane );
|
||
|
|
|
||
|
|
objects.push( plane );
|
||
|
|
|
||
|
|
// lights
|
||
|
|
|
||
|
|
const ambientLight = new THREE.AmbientLight( 0x606060 );
|
||
|
|
scene.add( ambientLight );
|
||
|
|
|
||
|
|
const directionalLight = new THREE.DirectionalLight( 0xffffff );
|
||
|
|
directionalLight.position.set( 1, 0.75, 0.5 ).normalize();
|
||
|
|
scene.add( directionalLight );
|
||
|
|
|
||
|
|
renderer = new THREE.WebGLRenderer( { antialias: true } );
|
||
|
|
renderer.setPixelRatio( window.devicePixelRatio );
|
||
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
|
document.body.appendChild( renderer.domElement );
|
||
|
|
|
||
|
|
document.addEventListener( 'pointermove', onPointerMove );
|
||
|
|
document.addEventListener( 'pointerdown', onPointerDown );
|
||
|
|
document.addEventListener( 'keydown', onDocumentKeyDown );
|
||
|
|
document.addEventListener( 'keyup', onDocumentKeyUp );
|
||
|
|
|
||
|
|
//
|
||
|
|
|
||
|
|
window.addEventListener( 'resize', onWindowResize );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function onWindowResize() {
|
||
|
|
|
||
|
|
camera.aspect = window.innerWidth / window.innerHeight;
|
||
|
|
camera.updateProjectionMatrix();
|
||
|
|
|
||
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
|
|
||
|
|
render();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function onPointerMove( event ) {
|
||
|
|
|
||
|
|
pointer.set( ( event.clientX / window.innerWidth ) * 2 - 1, - ( event.clientY / window.innerHeight ) * 2 + 1 );
|
||
|
|
|
||
|
|
raycaster.setFromCamera( pointer, camera );
|
||
|
|
|
||
|
|
const intersects = raycaster.intersectObjects( objects, false );
|
||
|
|
|
||
|
|
if ( intersects.length > 0 ) {
|
||
|
|
|
||
|
|
const intersect = intersects[ 0 ];
|
||
|
|
|
||
|
|
rollOverMesh.position.copy( intersect.point ).add( intersect.face.normal );
|
||
|
|
rollOverMesh.position.divideScalar( 50 ).floor().multiplyScalar( 50 ).addScalar( 25 );
|
||
|
|
|
||
|
|
render();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function onPointerDown( event ) {
|
||
|
|
|
||
|
|
pointer.set( ( event.clientX / window.innerWidth ) * 2 - 1, - ( event.clientY / window.innerHeight ) * 2 + 1 );
|
||
|
|
|
||
|
|
raycaster.setFromCamera( pointer, camera );
|
||
|
|
|
||
|
|
const intersects = raycaster.intersectObjects( objects, false );
|
||
|
|
|
||
|
|
if ( intersects.length > 0 ) {
|
||
|
|
|
||
|
|
const intersect = intersects[ 0 ];
|
||
|
|
|
||
|
|
// delete cube
|
||
|
|
|
||
|
|
if ( isShiftDown ) {
|
||
|
|
|
||
|
|
if ( intersect.object !== plane ) {
|
||
|
|
|
||
|
|
scene.remove( intersect.object );
|
||
|
|
|
||
|
|
objects.splice( objects.indexOf( intersect.object ), 1 );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
// create cube
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
const voxel = new THREE.Mesh( cubeGeo, cubeMaterial );
|
||
|
|
voxel.position.copy( intersect.point ).add( intersect.face.normal );
|
||
|
|
voxel.position.divideScalar( 50 ).floor().multiplyScalar( 50 ).addScalar( 25 );
|
||
|
|
scene.add( voxel );
|
||
|
|
|
||
|
|
objects.push( voxel );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
render();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function onDocumentKeyDown( event ) {
|
||
|
|
|
||
|
|
switch ( event.keyCode ) {
|
||
|
|
|
||
|
|
case 16: isShiftDown = true; break;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function onDocumentKeyUp( event ) {
|
||
|
|
|
||
|
|
switch ( event.keyCode ) {
|
||
|
|
|
||
|
|
case 16: isShiftDown = false; break;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function render() {
|
||
|
|
|
||
|
|
renderer.render( scene, camera );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
</script>
|
||
|
|
|
||
|
|
</body>
|
||
|
|
</html>
|