01-loadOBJ.html
<!DOCTYPE html>
<html>
<head>
<title>three.js webgl - load OBJ</title>
<meta charset="utf-8">
<script src="../frameworks/three.min.js"></script>
<script src="../frameworks/loaders/MTLLoader.js"></script>
<script src="../frameworks/loaders/OBJLoader.js"></script>
<script src="../frameworks/dat.gui.min.js"></script>
<style>
body {
margin: 0;
overflow: hidden;
}
</style>
<script>
var renderer;
var scene;
var camera;
var clock;
var control;
var tower;
function init() {
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
renderer = new THREE.WebGLRenderer();
renderer.setClearColor(0x000000, 1.0);
renderer.physicallyCorrectLights = true;
renderer.gammaInput = true;
renderer.gammaOutput = true;
renderer.shadowMap.enabled = true;
renderer.toneMapping = THREE.ReinhardToneMapping;
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
var planeGeometry = new THREE.PlaneGeometry(50, 50);
var planeMaterial = new THREE.MeshLambertMaterial({color: 0xcccccc});
var plane = new THREE.Mesh(planeGeometry, planeMaterial);
plane.receiveShadow = true;
plane.rotation.x = -0.5 * Math.PI;
plane.position.x = 0;
plane.position.y = 0;
plane.position.z = 0;
scene.add(plane);
camera.position.x = 15;
camera.position.y = 37;
camera.position.z = 33;
camera.lookAt(scene.position);
var ambient = new THREE.AmbientLight(0xffffff,0.3);
scene.add(ambient);
var light = new THREE.DirectionalLight(0xffffff, 1, 100, 2 );
light.position.set(10, 20 , 20);
light.castShadow = true;
light.shadow.camera.near = 0;
light.shadow.camera.far = 50;
light.shadow.mapSize.width = 3 * 512;
light.shadow.mapSize.height = 3 * 512;
light.shadow.camera.top = 25; //X
light.shadow.camera.right = 25;
light.shadow.camera.left = -25;
light.shadow.camera.bottom = -25;
light.shadow.camera.visible = true;
scene.add(light);
control = new function() {
this.rotationSpeed = 0.5;
this.opacity = 1;
this.color = 0x086113;
};
addControlGui(control);
clock = new THREE.Clock();
document.body.appendChild(renderer.domElement);
loadOBJ ("../data/models/castle/", "tower1.mtl", "tower1.obj", scene, function (obj){
tower=obj;
render();
});
}
function addControlGui(controlObject) {
var gui = new dat.GUI();
gui.add(controlObject, 'rotationSpeed', -1, 1);
gui.add(controlObject, 'opacity', 0.1, 1);
}
function render() {
var delta = clock.getDelta();
var rotSpeed = delta*control.rotationSpeed;
camera.position.x = camera.position.x * Math.cos(rotSpeed) + camera.position.z * Math.sin(rotSpeed);
camera.position.z = camera.position.z * Math.cos(rotSpeed) - camera.position.x * Math.sin(rotSpeed);
camera.lookAt(scene.position);
tower.traverse(function (child) {
if (child instanceof THREE.Mesh) {
child.material.transparent = true;
child.material.opacity = control.opacity;
}
});
requestAnimationFrame(render);
renderer.render(scene, camera);
}
function loadOBJ (path, fileMaterial, fileOBJ, scene, fSuc, fFail) {
var onProgress = function (xhr) {
if (xhr.lengthComputable) {
var percentComplete = xhr.loaded / xhr.total * 100;
console.log(Math.round(percentComplete, 2) + '% downloaded');
}
};
var onError = function (xhr) {
if (fFail) {fFail(xhr);}
console.log('ERROR');
};
var mtlLoader = new THREE.MTLLoader();
mtlLoader.setPath(path);
mtlLoader.load(fileMaterial, function (materials) {
materials.preload();
var objLoader = new THREE.OBJLoader();
objLoader.setMaterials(materials);
objLoader.setPath(path);
objLoader.load(fileOBJ, function (object) {
//Active shadows
object.traverse(function (child) {
if (child instanceof THREE.Mesh) {
child.castShadow = true;
}
});
object.castShadow = true;
object.position.set(0, 0, 0);
scene.add(object);
fSuc(object);
}, onProgress, onError);
});
};
function handleResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
window.onload = init;
window.addEventListener('resize', handleResize, false);
</script>
</head>
<body>
</body>
</html>