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- <!DOCTYPE HTML>
- <html lang="en">
- <head>
- <title>three.js webgl - interactive - voxel painter</title>
- <meta charset="utf-8">
- <style type="text/css">
- body {
- font-family: Monospace;
- background-color: #f0f0f0;
- margin: 0px;
- overflow: hidden;
- }
- #oldie { background-color: #ddd !important }
- </style>
- </head>
- <body>
- <script type="text/javascript" src="../build/Three.js"></script>
- <script type="text/javascript" src="js/Detector.js"></script>
- <script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
- <script type="text/javascript" src="js/Stats.js"></script>
- <script type="text/javascript">
- if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
- var container, stats;
- var camera, scene, renderer;
- var projector, plane, cube;
- var mouse2D, mouse3D, ray,
- rollOveredFace, isShiftDown = false,
- theta = 45, isCtrlDown = false;
- var rollOverMesh, rollOverMaterial, voxelPosition = new THREE.Vector3(), tmpVec = new THREE.Vector3();
- var cubeGeo, cubeMaterial;
- var i, intersector;
- init();
- animate();
- function init() {
- container = document.createElement( 'div' );
- document.body.appendChild( container );
- var info = document.createElement( 'div' );
- info.style.position = 'absolute';
- info.style.top = '10px';
- info.style.width = '100%';
- info.style.textAlign = 'center';
- info.innerHTML = '<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - voxel painter - webgl<br /><strong>click</strong>: add voxel, <strong>control + click</strong>: remove voxel, <strong>shift + click</strong>: rotate, <a href="javascript:save();return false;">save .png</a>';
- container.appendChild( info );
- camera = new THREE.Camera( 40, window.innerWidth / window.innerHeight, 1, 10000 );
- camera.position.y = 800;
- camera.target.position.y = 200;
- scene = new THREE.Scene();
- // roll-over helpers
- rollOverGeo = new Cube( 50, 50, 50 );
- rollOverMaterial = new THREE.MeshBasicMaterial( { color: 0xff0000, opacity: 0.5 } );
- rollOverMesh = new THREE.Mesh( rollOverGeo, rollOverMaterial );
- scene.addObject( rollOverMesh );
- // cubes
- cubeGeo = new Cube( 50, 50, 50 );
- cubeMaterial = new THREE.MeshLambertMaterial( { color: 0x00ff80, opacity: 1, shading: THREE.FlatShading, map: ImageUtils.loadTexture( "textures/square-outline-textured.png" ) } );
- cubeMaterial.color.setHSV( 0.1, 0.7, 1.0 );
- // picking
- projector = new THREE.Projector();
- // grid
- plane = new THREE.Mesh( new Plane( 1000, 1000, 20, 20 ), new THREE.MeshBasicMaterial( { color: 0x555555, wireframe: true } ) );
- plane.rotation.x = - 90 * Math.PI / 180;
- scene.addObject( plane );
- mouse2D = new THREE.Vector3( 0, 10000, 0.5 );
- ray = new THREE.Ray( camera.position, null );
- // Lights
- var ambientLight = new THREE.AmbientLight( 0x606060 );
- scene.addLight( ambientLight );
- var directionalLight = new THREE.DirectionalLight( 0xffffff );
- directionalLight.position.x = Math.random() - 0.5;
- directionalLight.position.y = Math.random() - 0.5;
- directionalLight.position.z = Math.random() - 0.5;
- directionalLight.position.normalize();
- scene.addLight( directionalLight );
- var directionalLight = new THREE.DirectionalLight( 0x808080 );
- directionalLight.position.x = Math.random() - 0.5;
- directionalLight.position.y = Math.random() - 0.5;
- directionalLight.position.z = Math.random() - 0.5;
- directionalLight.position.normalize();
- scene.addLight( directionalLight );
- renderer = new THREE.WebGLRenderer();
- renderer.setSize( window.innerWidth, window.innerHeight );
- container.appendChild(renderer.domElement);
- stats = new Stats();
- stats.domElement.style.position = 'absolute';
- stats.domElement.style.top = '0px';
- container.appendChild( stats.domElement );
- document.addEventListener( 'mousemove', onDocumentMouseMove, false );
- document.addEventListener( 'mousedown', onDocumentMouseDown, false );
- document.addEventListener( 'keydown', onDocumentKeyDown, false );
- document.addEventListener( 'keyup', onDocumentKeyUp, false );
- }
- function getRealIntersector( intersects ) {
- for( i = 0; i < intersects.length; i++ ) {
- intersector = intersects[ i ];
- if ( intersector.object != rollOverMesh ) {
- return intersector;
- }
- }
- return null;
- }
- function setVoxelPosition( intersector ) {
- tmpVec.copy( intersector.face.normal );
- voxelPosition.add( intersector.point, intersector.object.matrixRotation.multiplyVector3( tmpVec ) );
- voxelPosition.x = Math.floor( voxelPosition.x / 50 ) * 50 + 25;
- voxelPosition.y = Math.floor( voxelPosition.y / 50 ) * 50 + 25;
- voxelPosition.z = Math.floor( voxelPosition.z / 50 ) * 50 + 25;
- }
- function onDocumentMouseMove( event ) {
- event.preventDefault();
- mouse2D.x = ( event.clientX / window.innerWidth ) * 2 - 1;
- mouse2D.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
- }
- function onDocumentMouseDown( event ) {
- event.preventDefault();
- var intersects = ray.intersectScene( scene );
- if ( intersects.length > 0 ) {
- intersector = getRealIntersector( intersects );
- // delete cube
- if ( isCtrlDown ) {
- if ( intersector.object != plane ) {
- scene.removeObject( intersector.object );
- renderer.removeObject( scene, intersector.object );
- }
- // create cube
- } else {
- intersector = getRealIntersector( intersects );
- setVoxelPosition( intersector );
- var voxel = new THREE.Mesh( cubeGeo, cubeMaterial );
- voxel.position.copy( voxelPosition );
- scene.addObject( voxel );
- }
- }
- }
- function onDocumentKeyDown( event ) {
- switch( event.keyCode ) {
- case 16: isShiftDown = true; break;
- case 17: isCtrlDown = true; break;
- }
- }
- function onDocumentKeyUp( event ) {
- switch( event.keyCode ) {
- case 16: isShiftDown = false; break;
- case 17: isCtrlDown = false; break;
- }
- }
- function save() {
- window.open( renderer.domElement.toDataURL('image/png'), 'mywindow' );
- }
- //
- function animate() {
- requestAnimationFrame( animate );
- render();
- stats.update();
- }
- function render() {
- if ( isShiftDown ) {
- theta += mouse2D.x * 3;
- }
- mouse3D = projector.unprojectVector( mouse2D.clone(), camera );
- ray.direction = mouse3D.subSelf( camera.position ).normalize();
- var intersects = ray.intersectScene( scene );
- if ( intersects.length > 0 ) {
- intersector = getRealIntersector( intersects );
- if ( intersector ) {
- setVoxelPosition( intersector );
- rollOverMesh.position = voxelPosition;
- }
- }
- camera.position.x = 1400 * Math.sin( theta * Math.PI / 360 );
- camera.position.z = 1400 * Math.cos( theta * Math.PI / 360 );
- renderer.render( scene, camera );
- }
- </script>
- </body>
- </html>
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