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three.js

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提交 e7ebc61b 编写于 作者: R Ricardo Cabello
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Merge pull request #6543 from kovacsv/ObjExporterFix 

Fix OBJExporter exported file format.
上级 580af4b4 940a6088
隐藏空白更改
内联 并排
Showing with 263 addition and 11 deletion
examples/js/exporters/OBJExporter.js
浏览文件 @ e7ebc61b
......@@ -41,21 +41,34 @@ THREE.OBJExporter.prototype = {
// uvs
for ( var i = 0, l = geometry.faceVertexUvs[ 0 ].length; i < l; i ++ ) {
if (geometry.faceVertexUvs[ 0 ].length == geometry.faces.length) {
for ( var i = 0, l = geometry.faceVertexUvs[ 0 ].length; i < l; i ++ ) {
var vertexUvs = geometry.faceVertexUvs[ 0 ][ i ];
var vertexUvs = geometry.faceVertexUvs[ 0 ][ i ];
for ( var j = 0; j < vertexUvs.length; j ++ ) {
for ( var j = 0; j < vertexUvs.length; j ++ ) {
var uv = vertexUvs[ j ];
vertex.applyMatrix4( child.matrixWorld );
var uv = vertexUvs[ j ];
vertex.applyMatrix4( child.matrixWorld );
output += 'vt ' + uv.x + ' ' + uv.y + '\n';
output += 'vt ' + uv.x + ' ' + uv.y + '\n';
nbVertexUvs ++;
nbVertexUvs ++;
}
}
} else {
for ( var i = 0, l = geometry.faces.length * 3; i < l; i ++ ) {
output += 'vt 0 0\n';
nbVertexUvs ++;
}
}
// normals
......@@ -64,13 +77,29 @@ THREE.OBJExporter.prototype = {
var normals = geometry.faces[ i ].vertexNormals;
for ( var j = 0; j < normals.length; j ++ ) {
if (normals.length == 3) {
for ( var j = 0; j < normals.length; j ++ ) {
var normal = normals[ j ];
output += 'vn ' + normal.x + ' ' + normal.y + ' ' + normal.z + '\n';
nbNormals ++;
}
} else {
var normal = geometry.faces[ i ].normal;
for ( var j = 0; j < 3; j ++ ) {
var normal = normals[ j ];
output += 'vn ' + normal.x + ' ' + normal.y + ' ' + normal.z + '\n';
output += 'vn ' + normal.x + ' ' + normal.y + ' ' + normal.z + '\n';
nbNormals ++;
nbNormals ++;
}
}
}
......
examples/webgl_exporter_obj.html 0 → 100644
浏览文件 @ e7ebc61b
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - exporter - obj</title>
<meta charset="utf-8">
<style>
body {
font-family: Monospace;
background-color: #000000;
margin: 0px;
overflow: hidden;
}
#info {
color: #fff;
position: absolute;
top: 10px;
width: 100%;
text-align: center;
z-index: 100;
display: block;
}
div.floating {
color : #ffffff;
background : #000000;
opacity : 0.8;
width : 80%;
height : 80%;
position : absolute;
left : 10%;
top : 10%;
border : 1px solid #555555;
padding : 10px;
display : none;
overflow : auto;
z-index: 100;
}
span.link {
color: skyblue;
cursor: pointer;
text-decoration : underline;
}
a {
color: skyblue
}
</style>
</head>
<body>
<div id="info">
<a href="http://threejs.org" target="_blank">three.js</a>
- geometries:
<span class="link" id="triangle">triangle</span>,
<span class="link" id="cube">cube</span>,
<span class="link" id="cylinder">cylinder</span>,
<span class="link" id="both">both</span>
- <span class="link" id="export">export to obj</span>
</div>
<script src="../build/three.min.js"></script>
<script src="js/exporters/OBJExporter.js"></script>
<script>
var camera, scene, light, renderer;
var exportButton, floatingDiv;
var mouseX = 0, mouseY = 0;
function exportToObj ()
{
var exporter = new THREE.OBJExporter ();
var result = exporter.parse (scene);
floatingDiv.style.display = 'block';
floatingDiv.innerHTML = result.split ('\n').join ('<br />');
}
function addGeometry (type)
{
for (var i = 0; i < scene.children.length; i++) {
var current = scene.children[i];
if (current instanceof THREE.Mesh) {
scene.remove (current);
i--;
}
}
if (type == 1) {
var material = new THREE.MeshLambertMaterial ( { color : 0x00cc00 } );
var geometry = new THREE.Geometry ();
geometry.vertices.push (new THREE.Vector3 (-50, -50, 0));
geometry.vertices.push (new THREE.Vector3 (50, -50, 0));
geometry.vertices.push (new THREE.Vector3 (50, 50, 0));
var face = new THREE.Face3 (0, 1, 2);
geometry.faces.push (face);
geometry.computeFaceNormals ();
scene.add( new THREE.Mesh( geometry, material ) );
} else if (type == 2) {
var material = new THREE.MeshLambertMaterial ( { color : 0x00cc00 } );
var geometry = new THREE.BoxGeometry( 100, 100, 100 );
scene.add( new THREE.Mesh( geometry, material ) );
} else if (type == 3) {
var material = new THREE.MeshLambertMaterial ( { color : 0x00cc00 } );
var geometry = new THREE.CylinderGeometry( 50, 50, 100, 30, 1 );
scene.add( new THREE.Mesh( geometry, material ) );
} else if (type == 4) {
var material = new THREE.MeshLambertMaterial ( { color : 0x00cc00 } );
var geometry = new THREE.Geometry ();
geometry.vertices.push (new THREE.Vector3 (-50, -50, 0));
geometry.vertices.push (new THREE.Vector3 (50, -50, 0));
geometry.vertices.push (new THREE.Vector3 (50, 50, 0));
geometry.faces.push (new THREE.Face3 (0, 1, 2));
geometry.computeFaceNormals ();
var mesh = new THREE.Mesh( geometry, material );
mesh.position.x = -200;
scene.add( mesh );
var geometry2 = new THREE.BoxGeometry( 100, 100, 100 );
var mesh2 = new THREE.Mesh( geometry2, material );
scene.add( mesh2 );
var geometry3 = new THREE.CylinderGeometry( 50, 50, 100, 30, 1 );
var mesh3 = new THREE.Mesh( geometry3, material );
mesh3.position.x = 200;
scene.add( mesh3 );
}
}
function init() {
renderer = new THREE.WebGLRenderer();
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.set (0, 0, 400);
scene = new THREE.Scene();
light = new THREE.DirectionalLight( 0xffffff );
scene.add( light );
addGeometry (1);
window.addEventListener( 'click', onWindowClick, false );
window.addEventListener( 'resize', onWindowResize, false );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
document.addEventListener( 'mouseover', onDocumentMouseMove, false );
document.getElementById( 'triangle' ).addEventListener( 'click', function() { addGeometry (1); });
document.getElementById( 'cube' ).addEventListener( 'click', function() { addGeometry (2); });
document.getElementById( 'cylinder' ).addEventListener( 'click', function() { addGeometry (3); });
document.getElementById( 'both' ).addEventListener( 'click', function() { addGeometry (4); });
exportButton = document.getElementById( 'export' );
exportButton.addEventListener( 'click', function() { exportToObj (); });
floatingDiv = document.createElement ('div');
floatingDiv.className = 'floating';
document.body.appendChild (floatingDiv);
}
function onWindowClick(event) {
var needToClose = true;
var target = event.target;
while (target !== null) {
if (target === floatingDiv || target == exportButton) {
needToClose = false;
break;
}
target = target.parentElement;
}
if (needToClose) {
floatingDiv.style.display = 'none';
}
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function onDocumentMouseMove( event ) {
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
mouseX = ( event.clientX - windowHalfX ) / 2;
mouseY = ( event.clientY - windowHalfY ) / 2;
}
function animate() {
requestAnimationFrame( animate );
camera.position.x += ( mouseX - camera.position.x ) * .05;
camera.position.y += ( -mouseY - camera.position.y ) * .05;
camera.lookAt( new THREE.Vector3 (0.0, 0.0, 0.0) );
light.position.set( camera.position.x, camera.position.y, camera.position.z ).normalize ();
renderer.render( scene, camera );
}
init();
animate();
</script>
</body>
</html>
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