there is a code I downloaded from github and want to modify it.
I need to modify this code for move the earth by keyboard by arrow key not by muse.
how to modify the code.
tanks for your help.
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js canvas - geometry - earth</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
color: #808080;
font-family:Monospace;
font-size:13px;
text-align:center;
background-color: #ffffff;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
a {
color: #0080ff;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="info">three.js - earth demo</div>
<script src="../build/three.min.js"></script>
<script src="js/libs/stats.min.js"></script>
<script>
var container, stats;
var camera, scene, renderer;
var group;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
init();
animate();
function init() {
container = document.getElementById( 'container' );
camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 2000 );
camera.position.z = 500;
scene = new THREE.Scene();
group = new THREE.Object3D();
scene.add( group );
// earth
var loader = new THREE.TextureLoader();
loader.load( 'textures/land_ocean_ice_cloud_2048.jpg', function ( texture ) {
var geometry = new THREE.SphereGeometry( 200, 20, 20 );
var material = new THREE.MeshBasicMaterial( { map: texture, overdraw: 0.5 } );
var mesh = new THREE.Mesh( geometry, material );
group.add( mesh );
} );
// shadow
var canvas = document.createElement( 'canvas' );
canvas.width = 128;
canvas.height = 128;
var context = canvas.getContext( '2d' );
var gradient = context.createRadialGradient(
canvas.width / 2,
canvas.height / 2,
0,
canvas.width / 2,
canvas.height / 2,
canvas.width / 2
);
gradient.addColorStop( 0.1, 'rgba(210,210,210,1)' );
gradient.addColorStop( 1, 'rgba(255,255,255,1)' );
context.fillStyle = gradient;
context.fillRect( 0, 0, canvas.width, canvas.height );
var texture = new THREE.Texture( canvas );
texture.needsUpdate = true;
var geometry = new THREE.PlaneGeometry( 300, 300, 3, 3 );
var material = new THREE.MeshBasicMaterial( { map: texture, overdraw: 0.5 } );
var mesh = new THREE.Mesh( geometry, material );
mesh.position.y = - 250;
mesh.rotation.x = - Math.PI / 2;
group.add( mesh );
renderer = new THREE.CanvasRenderer();
renderer.setClearColor( 0xffffff );
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 );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function onDocumentMouseMove( event ) {
mouseX = ( event.clientX - windowHalfX );
mouseY = ( event.clientY - windowHalfY );
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
camera.position.x += ( mouseX - camera.position.x ) * 0.05;
camera.position.y += ( - mouseY - camera.position.y ) * 0.05;
camera.lookAt( scene.position );
group.rotation.y -= 0.005;
renderer.render( scene, camera );
}
</script>
</body>
</html>
sorry for my English.
tanks a lot.
Add these in your init() function
window.addEventListener ('keydown', onKeyDown, false);
window.addEventListener ("keyup", onKeyUp, false);
and then implement the code:
function onKeyDown (event)
{
switch (event.keyCode)
{
case 16: /* shift */ isShiftDown = true; break;
fill the rest accordingly
}
}
Related
Being new to three.js I like to learn by example. That being said I found the earth demo html. I've successfully changed the earth texture. Now I want to change the earth demo background to an image or create at larger rectangle doubleside that surrounds the sphere while maintaining the 3d aspect. Can I initiate multiple scenes and objects by editing the demo and inserting code into the existing demo file? Three's demo files are commented which helped me figure out some edits but any additions I've added causes the demo to malfunction. I'm sure it's code placement and syntax errors on my part! My objectives are add counter clockwise rotating clouds to the"earth". Encircle the earth with a crystal ball, and create a background in place of the white container. any thoughts on this would be greatly appreciated here's the code:
<style>
body {
color: #000000;
font-family:Monospace;
font-size:13px;
text-align:center;
background-color: #b49ebb;
background-image: url("textures/rainier.jpg");
background-repeat: no-repeat;
background-size: cover;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
a {
color: #0080ff;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="info">Therion SolutionsThe Oasis</div>
<script src="../build/three.js"></script>
<script src="js/renderers/Projector.js"></script>
<script src="js/renderers/CanvasRenderer.js"></script>
<script src="js/libs/stats.min.js"></script>
<script>
var container, stats;
var camera, scene, renderer;
var group;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
init();
animate();
function init() {
container = document.getElementById( 'container' );
camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 2000 );
camera.position.z = 500;
scene = new THREE.Scene();
group = new THREE.Group();
scene.add( group );
// earth
var loader = new THREE.TextureLoader();
loader.load( 'textures/land_ocean_ice_cloud_2048o.jpg', function ( texture ) {
var geometry = new THREE.SphereGeometry( 200, 20, 20 );
var material = new THREE.MeshBasicMaterial( { map: texture, overdraw: 0.5 } );
var mesh = new THREE.Mesh( geometry, material );
group.add( mesh );
} );
//Background
// shadow
var canvas = document.createElement( 'canvas' );
canvas.width = 128;
canvas.height = 128;
var context = canvas.getContext( '2d' );
var gradient = context.createRadialGradient(
canvas.width / 2,
canvas.height / 2,
0,
canvas.width / 2,
canvas.height / 2,
canvas.width / 2
);
gradient.addColorStop( 0.1, 'rgba(210,210,210,1)' );
gradient.addColorStop( 1, 'rgba(255,255,255,1)' );
context.fillStyle = gradient;
context.fillRect( 0, 0, canvas.width, canvas.height );
var texture = new THREE.CanvasTexture( canvas );
var geometry = new THREE.PlaneBufferGeometry( 300, 300, 3, 3 );
var material = new THREE.MeshBasicMaterial( { map: texture, overdraw: 0.5 } );
var mesh = new THREE.Mesh( geometry, material );
mesh.position.y = - 250;
mesh.rotation.x = - Math.PI / 2;
group.add( mesh );
renderer = new THREE.CanvasRenderer();
renderer.setClearColor(0xffffff);
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
stats = new Stats();
container.appendChild( stats.dom );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function onDocumentMouseMove( event ) {
mouseX = ( event.clientX - windowHalfX );
mouseY = ( event.clientY - windowHalfY );
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
camera.position.x += ( mouseX - camera.position.x ) * 0.05;
camera.position.y += ( - mouseY - camera.position.y ) * 0.05;
camera.lookAt( scene.position );
group.rotation.y -= 0.005;
renderer.render( scene, camera );
}
</script>
PS I always credit the author when I adapt scripts for my use
I am trying to rotate a model on a plane geometry that represents a hill. I use the following code. My problem is that though the model see to have the correct rotation when start animating and is parallel to the face it is moving when getting near and overcoming the point(0,0,0) it is rotating weirdly. Maybe the problem that I have set the up of the model to be the vector(0,0,1) (you can copy paste to an editor and view the example on your browser):
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - trackball controls</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
color: #000;
font-family:Monospace;
font-size:13px;
text-align:center;
font-weight: bold;
background-color: #fff;
margin: 0px;
overflow: hidden;
}
#info {
color:#000;
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
a {
color: red;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="info">
three.js - trackball controls example</br>
MOVE mouse & press LEFT/A: rotate, MIDDLE/S: zoom, RIGHT/D: pan
</div>
<script src="http://threejs.org/build/three.min.js"></script>
<script src="http://threejs.org/examples/js/controls/TrackballControls.js"></script>
<script src="http://threejs.org/examples/js/Detector.js"></script>
<script src="http://threejs.org/examples/js/libs/stats.min.js"></script>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
var container, stats;
var camera, controls, scene, renderer,mesh,animation,morph;
var cross;
init();
animate();
function init() {
camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.z = 500;
controls = new THREE.TrackballControls( camera );
controls.rotateSpeed = 1.0;
controls.zoomSpeed = 1.2;
controls.panSpeed = 0.8;
controls.noZoom = false;
controls.noPan = false;
controls.staticMoving = true;
controls.dynamicDampingFactor = 0.3;
controls.keys = [ 65, 83, 68 ];
controls.addEventListener( 'change', render );
// world
scene = new THREE.Scene();
var geometry = new THREE.PlaneBufferGeometry(100,100,2,2);
var material = new THREE.MeshPhongMaterial({color: 0xff0000,side:THREE.DoubleSide,
polygonOffset: true,
polygonOffsetFactor: 1, // positive value pushes polygon further away
polygonOffsetUnits: 1});
var vertices = geometry.attributes.position.array;
vertices[ 14 ] =10;
mesh = new THREE.Mesh(geometry,material);
scene.add(mesh);
// wireframe
var helper1 = new THREE.WireframeHelper( mesh, 0x000000 ); // or THREE.WireframeHelper
helper1.material.linewidth = 2;
scene.add( helper1 );
// lights
light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 1, 1, 1 );
scene.add( light );
light = new THREE.DirectionalLight( 0x002288 );
light.position.set( -1, -1, -1 );
scene.add( light );
light = new THREE.AmbientLight( 0x222222 );
scene.add( light );
// renderer
renderer = new THREE.WebGLRenderer( { antialias: false } );
renderer.setClearColor( 0xffffff );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container = document.getElementById( 'container' );
container.appendChild( renderer.domElement );
container.addEventListener( 'mousemove', onMouseMove, false );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
stats.domElement.style.zIndex = 100;
container.appendChild( stats.domElement );
container.addEventListener( 'mousemove', onMouseMove, false );
//
window.addEventListener( 'resize', onWindowResize, false );
//
render();
}
var material = new THREE.LineBasicMaterial({
color: 0x0000ff
});
var geometry = new THREE.Geometry();
geometry.vertices.push(
new THREE.Vector3( 0, 0, -20 ),
new THREE.Vector3( 0, 0, 20 )
);
var helper = new THREE.Line( geometry, material );
scene.add( helper );
//////////
var loader = new THREE.JSONLoader( true );
loader.load( "http://threejs.org/examples/models/animated/horse.js", function( geometry ) {
morph = new THREE.Mesh( geometry, new THREE.MeshLambertMaterial( { color: 0x606060, morphTargets: true } ) );
morph.scale.set( 0.02, 0.02, 0.02 );
//morph.rotation.set(Math.PI/2,Math.PI/2+Math.PI/4,0);//rotate to look at the direction moving.
morph.position.set(-50,-50,0);
scene.add( morph );
animation = new THREE.MorphAnimation( morph );
animation.play();
} );
/////////
//raycaster function
var raycaster = new THREE.Raycaster();
var mouse = new THREE.Vector2();
function onMouseMove( event ) {
mouse.x = ( event.clientX / renderer.domElement.width ) * 2 - 1;
mouse.y = - ( event.clientY / renderer.domElement.height ) * 2 + 1;
raycaster.setFromCamera( mouse, camera );
// See if the ray from the camera into the world hits one of our meshes
var intersects = raycaster.intersectObject( mesh );
// Toggle rotation bool for meshes that we clicked
if ( intersects.length > 0 ) {
helper.position.set( 0, 0, 0 );
helper.lookAt( intersects[ 0 ].face.normal );
document.body.style.cursor = "crosshair";
helper.position.copy( intersects[ 0 ].point );
render();
}
else{document.body.style.cursor = "auto";}
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
controls.handleResize();
render();
}
function animate() {
requestAnimationFrame( animate );
render();
controls.update();
}
var prevTime = Date.now();
function render() {
if ( animation ) {
var time = Date.now();
animation.update( time - prevTime );
prevTime = time;
}
if(morph){
if(morph.position.x>50){morph.position.x=-50;morph.position.y = -50;}
morph.position.x+=0.3;
morph.position.y+=0.3;
var help = helper.clone();
help.position.set(morph.position.x,morph.position.y,-10);
var ray= new THREE.Raycaster();
ray.set(help.position,new THREE.Vector3(0,0,1).normalize());
var intersect = ray.intersectObject( mesh );
// Toggle rotation bool for meshes that we clicked
if ( intersect.length > 0 ) {
morph.up.set(0,0,1);
morph.position.copy( intersect[ 0 ].point );
morph.lookAt( intersect[ 0 ].face.normal );
}
}
renderer.render( scene, camera );
stats.update();
}
</script>
</body>
</html>
Any ideas to keep the models rotation parallel to the face it is on?
Similar question with this one that has no answer.
i have take the code above and after playing with it for a while was able to get the effect you were going for but maybe not the way that answers your question... here is what i have found anyway... and another note i think i was working with the code that was first posted..
so it's been a long time scene i have dealt with 3d code (2001-2002 time frame) so my knowledge may be both rusty and out of date with newer trends. plus i am new to this frame work.
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - trackball controls</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
color: #000;
font-family:Monospace;
font-size:13px;
text-align:center;
font-weight: bold;
background-color: #fff;
margin: 0px;
overflow: hidden;
}
#info {
color:#000;
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
a {
color: red;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="info">
three.js - trackball controls example</br>
MOVE mouse & press LEFT/A: rotate, MIDDLE/S: zoom, RIGHT/D: pan
</div>
<script src="http://threejs.org/build/three.min.js"></script>
<script src="http://threejs.org/examples/js/controls/TrackballControls.js"></script>
<script src="http://threejs.org/examples/js/Detector.js"></script>
<script src="http://threejs.org/examples/js/libs/stats.min.js"></script>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
var container, stats;
var camera, controls, scene, renderer,mesh,animation,morph;
var cross;
init();
animate();
function init() {
camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.z = 500;
controls = new THREE.TrackballControls( camera );
controls.rotateSpeed = 1.0;
controls.zoomSpeed = 1.2;
controls.panSpeed = 0.8;
controls.noZoom = false;
controls.noPan = false;
controls.staticMoving = true;
controls.dynamicDampingFactor = 0.3;
controls.keys = [ 65, 83, 68 ];
controls.addEventListener( 'change', render );
// world
scene = new THREE.Scene();
var geometry = new THREE.PlaneBufferGeometry(100,100,2,2);
var material = new THREE.MeshPhongMaterial({color: 0xff0000,side:THREE.DoubleSide,
polygonOffset: true,
polygonOffsetFactor: 1, // positive value pushes polygon further away
polygonOffsetUnits: 1});
var vertices = geometry.attributes.position.array;
vertices[ 14 ] =10;
mesh = new THREE.Mesh(geometry,material);
scene.add(mesh);
// wireframe
var helper1 = new THREE.WireframeHelper( mesh, 0x000000 ); // or THREE.WireframeHelper
helper1.material.linewidth = 2;
scene.add( helper1 );
// lights
light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 1, 1, 1 );
scene.add( light );
light = new THREE.DirectionalLight( 0x002288 );
light.position.set( -1, -1, -1 );
scene.add( light );
light = new THREE.AmbientLight( 0x222222 );
scene.add( light );
// renderer
renderer = new THREE.WebGLRenderer( { antialias: false } );
renderer.setClearColor( 0xffffff );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container = document.getElementById( 'container' );
container.appendChild( renderer.domElement );
container.addEventListener( 'mousemove', onMouseMove, false );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
stats.domElement.style.zIndex = 100;
container.appendChild( stats.domElement );
container.addEventListener( 'mousemove', onMouseMove, false );
//
window.addEventListener( 'resize', onWindowResize, false );
//
render();
}
var material = new THREE.LineBasicMaterial({
color: 0x0000ff
});
var geometry = new THREE.Geometry();
geometry.vertices.push(
new THREE.Vector3( 0, 0, -20 ),
new THREE.Vector3( 0, 0, 20 )
);
var helper = new THREE.Line( geometry, material );
scene.add( helper );
//////////
var loader = new THREE.JSONLoader( true );
loader.load( "http://threejs.org/examples/models/animated/horse.js", function( geometry ) {
morph = new THREE.Mesh( geometry, new THREE.MeshLambertMaterial( { color: 0x606060, morphTargets: true } ) );
morph.scale.set( 0.02, 0.02, 0.02 );
//morph.rotation.set(Math.PI/2,Math.PI/2+Math.PI/4,0);//rotate to look at the direction moving.
morph.position.set(-50,-50,0);
scene.add( morph );
animation = new THREE.MorphAnimation( morph );
animation.play();
} );
/////////
//raycaster function
var raycaster = new THREE.Raycaster();
var mouse = new THREE.Vector2();
function onMouseMove( event ) {
mouse.x = ( event.clientX / renderer.domElement.width ) * 2 - 1;
mouse.y = - ( event.clientY / renderer.domElement.height ) * 2 + 1;
raycaster.setFromCamera( mouse, camera );
// See if the ray from the camera into the world hits one of our meshes
var intersects = raycaster.intersectObject( mesh );
// Toggle rotation bool for meshes that we clicked
if ( intersects.length > 0 ) {
helper.position.set( 0, 0, 0 );
helper.lookAt( intersects[ 0 ].face.normal );
document.body.style.cursor = "crosshair";
helper.position.copy( intersects[ 0 ].point );
render();
}
else{document.body.style.cursor = "auto";}
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
controls.handleResize();
render();
}
function animate() {
requestAnimationFrame( animate );
render();
controls.update();
}
var prevTime = Date.now();
function render() {
var DelX,DelY,DelZ,LastZ;
DelX=0.3;DelY=0.3;
if ( animation ) {
var time = Date.now();
animation.update( time - prevTime );
prevTime = time;
}
if(morph){
LastZ=morph.position.z;
if(morph.position.x>50){morph.position.x=-50;morph.position.y = -50.1;}
morph.position.x+=DelX;
morph.position.y+=DelY;
var help = helper.clone();
help.position.set(morph.position.x,morph.position.y,-10);
var ray= new THREE.Raycaster();
ray.set(help.position,new THREE.Vector3(0,0,1).normalize());
var intersect = ray.intersectObject( mesh );
// Toggle rotation bool for meshes that we clicked
if ( intersect.length > 0 ) {
morph.up.set(0,0,1);
morph.position.copy( intersect[ 0 ].point );
DelZ=morph.position.z-LastZ;
var PointToLookat = new THREE.Vector3(morph.position.x+DelX,morph.position.y+DelY,morph.position.z+DelZ);
morph.lookAt( PointToLookat );
// old morph.lookAt( intersect[ 0 ].face.normal );
}
}
renderer.render( scene, camera );
stats.update();
}
</script>
</body>
</html>
so basically your LookAt is "pointing" the horse at some point in 3d space at first i assumed it was a vector direction and maybe that what you were assuming too, i at least was wrong, so you have to put your point "in front" of the current position of the object. i added some delta vars and kept track of the lastZ position value (as i write this i realized i could have used a vector for that) so i found the "next spot" the object will be at and used that as the PointToLookat.
I have this code and I cannot seem to be able to add any other image/texture to it. i tried this simple code right after scene = new Three.Scene();
var sphere1 = createMesh(new THREE.CubeGeometry(15, 15, 15), "plaster.jpg");
sphere1.rotation.y = -0.5;
sphere1.position.x = 12;
scene.add(sphere1);
into this code of my project
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js canvas - geometry - earth</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link href="styles/styles.css" rel="stylesheet" type="text/css"></link>
<style>
body {
background:#3b404a;
margin:0; padding:0;
}
</style>
</head>
<body>
<div class="wrapperBG">
<!-- top menu -->
<div class="menu">
</div> <!-- end .menu -->
<!-- end top menu -->
<div id="container"></div>
<div id="info">three.js - earth demo</div>
<script src="../build/three.min.js"></script>
<script src="js/libs/stats.min.js"></script>
<script>
var container, stats;
var camera, scene, renderer;
var group;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
init();
animate();
function init() {
container = document.getElementById( 'container' );
camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 2000 );
camera.position.z = 700;
camera.position.y = 170;
scene = new THREE.Scene();
group = new THREE.Object3D();
scene.add( group );
// earth
var image = 'WorldMap.svg';
var loader = new THREE.TextureLoader();
loader.load( image, function ( texture ) {
//var geometry = new THREE.SphereGeometry( 180, 60, 60 );
var geometry = new THREE.PlaneGeometry(1024, 560);
var material = new THREE.MeshBasicMaterial( { map: texture, overdraw: 0.5 } );
var mesh = new THREE.Mesh( geometry, material );
group.add( mesh );
} );
renderer = new THREE.WebGLRenderer({alpha : true});
//renderer.setClearColor( 0xffa200, 0.5 );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function onDocumentMouseMove( event ) {
mouseX = ( event.clientX - windowHalfX );
mouseY = ( event.clientY - windowHalfY );
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
//camera.position.x += ( mouseX - camera.position.x ) * 0.05;
//camera.position.y += ( - mouseY - camera.position.y ) * 0.05;
/* ============= FLAT MAP INTERCATIVITY COORDINATES ============ */
camera.position.x += ( mouseX - (camera.position.x*50) ) * 0.007;
camera.position.y += ( - mouseY - (camera.position.y *10) ) * 0.007;
/*================================================================ */
camera.lookAt( scene.position );
//group.rotation.y -= 0.01;
renderer.render( scene, camera );
}
</script>
<!-- ====== EDITING THE SVG MAP =====
<object data="WorldMap.svg" type="image/svg+xml" id="map"></object>
<script>
// refers to entire map loaded as object
//note: svg document must have same path as the accessor
var world = document.getElementById("map");
//load asynchronous svg
world.addEventListener("load",function(){
var region = world.contentDocument; //get the inner DOM of WorldMap.svg
var mapRegion = region.getElementById("DZ"); //get Algeria
mapRegion.setAttribute('fill', '#000000');
},false);
</script>
================================ -->
</div> <!-- end .wrapperBG -->
</body>
</html>
I have the world map loaded but now i cannot add anything else to the scene. how can i do that?
Look at your code and your project code.
var sphere1 = createMesh(new THREE.CubeGeometry(15, 15, 15), "plaster.jpg");
This is not going to work as plaster-jpg is a texture, not a material.
Create a material first like you did in your project with:
var material = new THREE.MeshBasicMaterial( { map: texture, overdraw: 0.5 } );
where texture is your plaster.jpg which is loaded using the image loader, too.
This should do the trick. Just stick to your projects initial code! :)
This is my first time attempting to import an obj into three.js and use it. I am attempting to use the object loader that is included in the three master build.
The issue seems to be in how the object file loads, as it errors about something being undefined in some kind of loop. Trouble is, I don't know what is undefined that shouldn't be. To create my obj file I used https://developer.cdn.mozilla.net/media/uploads/demos/w/i/wizgrav/f232e401f674086f9aae99b474e27ed0/running-image-triang_1372626220_demo_package/index.html
What am I doing wrong? This is my first time using Three, so I tried to make as few changes as possible (only to where the files are in my directory structure).
Since this could be the object, it is at:
http://geevideoproduction.com/geeTop3D.obj
<!DOCTYPE html>
<html lang="en"><head>
<title>three.js webgl - loaders - OBJ loader</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
font-family: Monospace;
background-color: #000;
color: #fff;
margin: 0px;
overflow: hidden;
}
#info {
color: #fff;
position: absolute;
top: 10px;
width: 100%;
text-align: center;
z-index: 100;
display:block;
}
#info a, .button { color: #f00; font-weight: bold; text-decoration: underline; cursor: pointer }
</style>
</head>
<body>
<script src="./jscript/three.min.js"></script>
<script src="./jscript/js/loaders/OBJLoader.js"></script>
<script src="./jscript/js/Detector.js"></script>
<script src="./jscript/js/libs/stats.min.js"></script>
<script>
var container, stats;
var camera, scene, renderer;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
camera.position.z = 100;
// scene
scene = new THREE.Scene();
var ambient = new THREE.AmbientLight( 0x101030 );
scene.add( ambient );
var directionalLight = new THREE.DirectionalLight( 0xffeedd );
directionalLight.position.set( 0, 0, 1 );
scene.add( directionalLight );
// texture
var manager = new THREE.LoadingManager();
manager.onProgress = function ( item, loaded, total ) {
console.log( item, loaded, total );
};
var texture = new THREE.Texture();
var loader = new THREE.ImageLoader( manager );
loader.load( '/PlayFiles/geeVideoProduction/images/GeeTop.png', function ( image ) {
texture.image = image;
texture.needsUpdate = true;
} );
// model
var loader = new THREE.OBJLoader( manager );
loader.load( '/PlayFiles/geeVideoProduction/images/geeTop3D.obj', function ( object ) {
object.traverse( function ( child ) {
if ( child instanceof THREE.Mesh ) {
child.material.map = texture;
}
} );
object.position.y = - 80;
scene.add( object );
} );
//
renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function onDocumentMouseMove( event ) {
mouseX = ( event.clientX - windowHalfX ) / 2;
mouseY = ( event.clientY - windowHalfY ) / 2;
}
//
function animate() {
requestAnimationFrame( animate );
render();
}
function render() {
camera.position.x += ( mouseX - camera.position.x ) * .05;
camera.position.y += ( - mouseY - camera.position.y ) * .05;
camera.lookAt( scene.position );
renderer.render( scene, camera );
}
</script><div><canvas width="1244" height="500"></canvas></div>
</body></html>
Below is my code for the scene of tube geometry. I've loaded 200 co-ordinates as JSON data from external file.
<!DOCTYPE html>
<html lang="en">
<head>
<title>3d Model using HTML5 and three.js</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
font-family: Monospace;
background-color: #f0f0f0;
margin: 0px;
overflow: hidden;
}
#info {
color:#000;
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
</style>
</head>
<body>
<div id="info">
WASD-move, RF-up/down, QE-roll, mouse-look around, mouse left/right click- zoom-in/out
</div>
<script src="three.min.js" type="text/javascript"></script>
<script src="Curve.js" type="text/javascript"></script>
<script src="Stats.js" type="text/javascript"></script>
<script src="Detector.js" type="text/javascript"></script>
<script src="path.js" type="text/javascript"></script>
<script>
// variables
var container, stats;
var camera, scene, renderer, controls;
var text, plane, tube, tubeMesh, parent;
var targetRotation = 0;
var targetRotationOnMouseDown = 0;
var mouseX = 0, mouseY = 0; var radius = 6371;
var mouseXOnMouseDown = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
var clock = new THREE.Clock();
function plotPath()
{
var obj = getPath();
var segments = 60;
var closed = false;
var debug = true;
var radiusSegments = 12;
var tube;
var points = [];
var x=0,y=0,z=0;
var extrudePath;
for(var i=0; i<obj.path.length; i++)
{
console.log(obj.path[i].point);
points.push(obj.path[i].point);
}
extrudePath = new THREE.SplineCurve3(points);
tube = new THREE.TubeGeometry(extrudePath, segments, 2, radiusSegments, closed, debug);
tubeMesh = new THREE.Mesh(tube ,new THREE.MeshBasicMaterial({
color: 0x000000, side: THREE.DoubleSide,
opacity: 0.5, transparent: true, wireframe: true}));
if ( tube.debug ) tubeMesh.add( tube.debug );
scene.add( tubeMesh );
}
init();
animate();
function init(){
// container
container = document.createElement( 'div' );
document.body.appendChild( container );
// scene
scene = new THREE.Scene();
scene.fog = new THREE.FogExp2( 0xcccccc, 0.002 );
// renderer
renderer = new THREE.WebGLRenderer( { antialias: false } );
renderer.setClearColor( scene.fog.color, 1 );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
// camera
camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 1000 );
// light
light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 1, 1, 1 );
scene.add( light );
light = new THREE.DirectionalLight( 0x002288 );
light.position.set( -1, -1, -1 );
scene.add( light );
light = new THREE.AmbientLight( 0x555555 );
scene.add( light );
// CONTROLS
controls = new THREE.RollControls( camera );
controls.movementSpeed = 50;
controls.lookSpeed = 3;
controls.constrainVertical = [ -0.5, 0.5 ];
// Grid
geometry = new THREE.Geometry();
geometry.vertices.push( new THREE.Vector3( - 500, 0, 0 ) );
geometry.vertices.push( new THREE.Vector3( 500, 0, 0 ) );
for ( var i = 0; i <= 20; i ++ ) {
line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0x000000, opacity: 0.2 } ) );
line.position.z = ( i * 50 ) - 500;
scene.add( line );
line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0x000000, opacity: 0.2 } ) );
line.position.x = ( i * 50 ) - 500;
line.rotation.y = 90 * Math.PI / 180;
scene.add( line );
}
// projector
projector = new THREE.Projector();
plotPath();
// stats
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
stats.domElement.style.zIndex = 100;
container.appendChild( stats.domElement );
// events
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function animate() {
requestAnimationFrame( animate );
render();
update();
}
function update(){
controls.update(clock.getDelta());
stats.update();
}
function render() {
renderer.render( scene, camera );
}
</script>
</body>
</html>
How can I identify a point on tube circumference and how to rotate a tube from that point ?
OrbitControls, for example, has a property target which is both the center of rotation and the camera look-at position.
controls = new THREE.OrbitControls( camera );
You can change the center of rotation of the camera using picking.
function onDocumentMouseDown( event ) {
event.preventDefault();
var vector = new THREE.Vector3(
( event.clientX / window.innerWidth ) * 2 - 1,
- ( event.clientY / window.innerHeight ) * 2 + 1,
0.5 );
projector.unprojectVector( vector, camera );
var ray = new THREE.Raycaster( camera.position, vector.sub( camera.position ).normalize() );
var intersects = ray.intersectObjects( objects );
if ( intersects.length > 0 ) {
controls.target.copy( intersects[0].point );
}
}
EDIT: Here is an updated fiddle: http://jsfiddle.net/eVkgs/30/
three.js r.65