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webgl_multiple_windows.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - multiple windows</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, html {
color: #000;
font-family:Monospace;
font-size:13px;
text-align:center;
width: 100%;
height: 100%;
background-color: #fff;
margin: 0px;
overflow: hidden;
}
#container {
width: 100%;
height: 100%;
}
#info {
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
a {
color: #0080ff;
}
#newview {
position: absolute;
top: 10px;
left: 10px;
background-color: rgba(0,0,0,0.5);
color: white;
font-weight: bold;
padding: 1em;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="newview">Click for new Window</div>
<script src="js/threejs/r60/build/three.min.js"></script>
<script src="js/threejs/r60/examples/js/controls/TransformControls.js"></script>
<script>
var container, windowManager, viewCount = 0;
var views, scene, renderer;
var mesh, group1, group2, group3, light;
var mouseX = 0, mouseY = 0;
var windowWidth = 1, windowHeight = 1;
/**
* Makes one class inherit from another.
* @param {!Object} subClass Class that wants to inherit.
* @param {!Object} superClass Class to inherit from.
*/
var inherit = function( subClass, superClass ) {
var TmpClass = function() { };
TmpClass.prototype = superClass.prototype;
subClass.prototype = new TmpClass();
};
/**
* Represents a popup window.
*/
var ViewWindow = function( manager, id, window, container ) {
var self = this;
this.manager = manager;
this.id = id;
this.window = window;
this.renderQueued = false;
this.width = 300;
this.height = 150;
this.container = container;
this.closed = false;
this.devicePixelRatio = 1;//window.devicePixelRatio || 1;
var document = window.document
this.document = document;
this.canvas = this.document.createElement( 'canvas' );
var style = this.canvas.style;
style.width = "100%";
style.height = "100%";
this.container.appendChild( this.canvas );
this.ctx = this.canvas.getContext( '2d' );
// TODO: should probably make the polyfill take a window?
this.window.requestAnimFrame = (function() {
return this.window.requestAnimationFrame ||
this.window.webkitRequestAnimationFrame ||
this.window.mozRequestAnimationFrame ||
function( callback ){
this.window.setTimeout( callback, 1000 / 60 );
};
})();
this.window.addEventListener( 'resize', this.constructor.prototype.updateSize.bind( this ) );
this.window.addEventListener( 'unload', this.constructor.prototype.close.bind( this ) );
this.window.addEventListener( 'focus', this.constructor.prototype.focus.bind( this ) );
var rand = function() {
return Math.random() * 0.2 + 0.5;
};
var view = {
background: new THREE.Color().setRGB( rand(), rand(), rand() ),
fov: 30,
};
this.view = view;
var camera = new THREE.PerspectiveCamera( 30, 1, 1, 10000 );
var angle = 0.2;
var distance = 1500;
camera.position.z = Math.cos(Math.PI * angle) * distance;
camera.position.x = Math.sin(Math.PI * angle) * distance;
camera.position.y = distance * 0.1;
camera.lookAt( new THREE.Vector3( 0, 0, 0 ) );
view.camera = camera;
camera.updateFromCanvas = (function( camera ) {
return function( canvas ) {
camera.aspect = canvas.width / canvas.height;
camera.updateProjectionMatrix();
};
}( camera ));
this.perspectiveCamera = camera;
var camera = new THREE.OrthographicCamera( -1, 1, 1, -1, 1, 10000 );
camera.position.z = 1500;
camera.updateFromCanvas = (function( camera ) {
return function ( canvas ) {
var width = canvas.width;
var height = canvas.height;
camera.left = -width;
camera.right = width;
camera.top = height;
camera.bottom = -height;
camera.updateProjectionMatrix();
};
}( camera ));
this.orthographicCamera = camera;
this.currentCamera = this.perspectiveCamera;
// Is this in three.js?
var copyOrientation = function( src, dst ) {
dst.up.copy( src.up );
dst.position.copy( src.position );
dst.scale.copy( src.scale );
dst.rotation.copy( src.rotation );
dst.quaternion.copy( src.quaternion );
};
var setCamera = function( camera ) {
self.currentCamera = camera;
};
var buttonsElem = document.createElement( 'div' );
var style = buttonsElem.style;
style.position = 'absolute';
style.top = '10px';
style.padding = '1em';
style.right = '10px';
style.backgroundColor = 'rgba(0, 0, 0, 0.5)';
var views = [
{
name: 'perspective 1',
func: function() {
setCamera( self.perspectiveCamera );
var angle = 0.2;
var distance = 1500;
var x = Math.sin(Math.PI * angle) * distance;
var y = distance * 0.1;
var z = Math.cos(Math.PI * angle) * distance;
self.currentCamera.position.set( x, y, z );
self.currentCamera.lookAt( new THREE.Vector3( 0, 0, 0 ) );
},
},
{
name: 'perspective 2',
func: function() {
setCamera( self.perspectiveCamera );
var angle = -0.4;
var distance = 2500;
var x = Math.sin(Math.PI * angle) * distance;
var y = distance * 0.2;
var z = Math.cos(Math.PI * angle) * distance;
self.currentCamera.position.set( x, y, z );
self.currentCamera.lookAt( new THREE.Vector3( 0, 0, 0 ) );
},
},
{
name: 'perspective 3',
func: function() {
setCamera( self.perspectiveCamera );
var angle = 0.25;
var distance = 1500;
var x = Math.sin(Math.PI * angle) * distance;
var y = distance * 0.6;
var z = Math.cos(Math.PI * angle) * distance;
self.currentCamera.position.set( x, y, z );
self.currentCamera.lookAt( new THREE.Vector3( 0, 0, 0 ) );
},
},
/*
{
name: 'left',
func: function() {
setCamera( self.orthographicCamera );
self.currentCamera.position.set( -1500, 0, 0 );
self.currentCamera.up.set( 0, 1, 0 );
self.currentCamera.lookAt( new THREE.Vector3( 0, 0, 0 ) );
},
},
{
name: 'top',
func: function() {
setCamera( self.orthographicCamera );
self.currentCamera.position.set( 0, 1500, 0 );
self.currentCamera.up.set( 0, 0, -1 );
self.currentCamera.lookAt( new THREE.Vector3( 0, 0, 0 ) );
},
},
{
name: 'front',
func: function() {
setCamera( self.orthographicCamera );
self.currentCamera.position.set( 0, 0, 1500 );
self.currentCamera.up.set( 0, 1, 0 );
self.currentCamera.lookAt( new THREE.Vector3( 0, 0, 0 ) );
},
},
*/
];
var updateViewHandler = function( button, view ) {
if ( self.oldButton ) {
self.oldButton.style.color = 'black';
}
view.func();
self.manager.updateControlCamera( self.currentCamera );
self.queueRender();
self.oldButton = button,
button.style.color = 'white';
};
var buttons = [];
views.forEach(function( view ) {
var button = document.createElement( 'div' );
button.appendChild( document.createTextNode( view.name ) );
button.addEventListener( 'click', function( button, view ) {
return function() {
updateViewHandler( button, view );
};
}( button, view ) );
buttonsElem.appendChild( button );
buttons.push( button );
});
this.container.appendChild( buttonsElem );
this.updateSize();
var viewNdx = (viewCount++) % buttons.length;
updateViewHandler( buttons[viewNdx], views[viewNdx] );
};
ViewWindow.prototype.focus = function() {
this.manager.makeWindowCurrent( this );
};
ViewWindow.prototype.updateSize = function() {
var desiredWidth = this.canvas.clientWidth * this.devicePixelRatio;
var desiredHeight = this.canvas.clientHeight * this.devicePixelRatio;
if ( this.canvas.width != desiredWidth || this.canvas.height != desiredHeight ) {
this.canvas.width = desiredWidth;
this.canvas.height = desiredHeight;
this.width = desiredWidth;
this.height = desiredHeight;
this.manager.updateMaxSize();
this.queueRender();
}
};
ViewWindow.prototype.close = function() {
if ( !this.closed ) {
this.manager.removeWindow( this, this.id );
}
};
ViewWindow.prototype.closeImmediately = function() {
this.closed = true;
this.window.close();
};
ViewWindow.prototype.queueRender = function() {
if ( ! this.renderQueued ) {
this.renderQueued = true;
this.window.requestAnimFrame( this.constructor.prototype.render.bind( this ) );
}
};
ViewWindow.prototype.render = function() {
this.renderQueued = false;
var view = this.view;
camera = this.currentCamera;
camera.updateFromCanvas( this.canvas );
this.manager.renderSceneToCanvas( this, camera, view, this.ctx );
};
/**
* Represents the main window.
*/
MainViewWindow = function() {
ViewWindow.apply( this, arguments );
};
inherit( MainViewWindow, ViewWindow );
MainViewWindow.prototype.close = function() {
};
MainViewWindow.prototype.closeImmediately = function() {
};
/**
* Manages the windows.
*/
var WindowManager = function( container, scene ) {
this.windows = [];
this.controls = [];
this.maxWidth = 0;
this.maxHeight = 0;
this.newWindowId = 0;
this.scene = scene;
this.renderer = new THREE.WebGLRenderer( { antialias: true, alpha: false, devicePixelRatio: 1 } );
window.addEventListener( 'unload', this.constructor.prototype.closeAllWindows.bind( this ) );
// Main window has to be created last.
this.windows.push( new MainViewWindow( this, 0, window, container ) );
this.currentWindow = this.windows[0];
};
WindowManager.prototype.createWindow = function() {
var id = ++this.newWindowId;
var subWindow = window.open( '', 'view#' + id, 'width=400,height=400,location=no,resizable=yes' );
var document = subWindow.document;
var body = document.body;
var style = body.style;
style.width = '100%';
style.height = '100%';
style.padding = '0px';
style.margin = '0px';
style.overflow = 'hidden';
style.fontFamily = 'Monospace';
style.fontSize = '13px';
this.windows.push( new ViewWindow( this, id, subWindow, body ) );
};
WindowManager.prototype.removeWindow = function( window, id ) {
for ( var ii = 0; ii < this.windows.length; ++ii ) {
if ( this.windows[ ii ].id == id ) {
this.windows.splice( ii, 1 );
break;
}
}
};
WindowManager.prototype.closeAllWindows = function() {
this.windows.forEach( function( window ) {
window.closeImmediately();
} );
this.windows = [];
};
WindowManager.prototype.updateMaxSize = function() {
var maxWidth = 0;
var maxHeight = 0;
this.windows.forEach( function( window ) {
maxWidth = Math.max( window.width, maxWidth );
maxHeight = Math.max( window.height, maxHeight );
} );
if ( this.maxWidth != maxWidth || this.maxHeight != maxHeight ) {
this.renderer.setSize( maxWidth, maxHeight, false );
this.maxWidth = maxWidth;
this.maxHeight = maxHeight;
}
};
WindowManager.prototype.updateAllWindows = function() {
this.updateMaxSize();
this.controls.forEach( function( control ) {
control.update();
} );
var renderer = this.renderer;
var self = this;
this.windows.forEach( function( window ) {
window.render();
} );
};
WindowManager.prototype.renderSceneToCanvas = function( window, camera, parameters, ctx ) {
var renderer = this.renderer;
var canvas = ctx.canvas;
var scene = this.scene;
var hide = window !== this.currentWindow;
this.controls.forEach( function( control ) {
if ( hide ) {
control.hide();
} else {
control.setMode( control.mode );
}
} );
renderer.setViewport( 0, 0, canvas.width, canvas.height );
renderer.setClearColor( parameters.background );
renderer.render( scene, camera );
var srcX = 0;
var srcY = this.maxHeight - canvas.height;
var dstX = 0;
var dstY = 0;
var width = canvas.width;
var height = canvas.height;
if ( srcX >= 0 && srcY >= 0 && width >= 1 && height >= 1 ) {
ctx.drawImage( renderer.context.canvas,
srcX, srcY, width, height,
dstX, dstY, width, height );
}
};
WindowManager.prototype.makeWindowCurrent = function( window ) {
if ( window !== this.currentWindow ) {
this.currentWindow = window;
this.attachControlsToWindow( window );
this.updateAllWindows();
}
};
WindowManager.prototype.updateControlCamera = function( camera ) {
this.controls.forEach( function( control ) {
control.camera = camera;
control.update();
} );
};
WindowManager.prototype.attachControlsToWindow = function( window ) {
this.controls.forEach( function( control ) {
var object = control.object;
if ( object ) {
control.detach( object );
}
// switch to this window
control.domElement = window.container;
control.document = window.document;
control.camera = window.currentCamera;
control.attach( object );
control.update();
} );
};
WindowManager.prototype.addTransformControl = function( object ) {
var window = this.currentWindow;
var camera = window.currentCamera;
var container = window.container;
var control = new THREE.TransformControls( camera, container, window.document );
control.addEventListener( 'change', windowManager.__proto__.updateAllWindows.bind( windowManager ));
control.attach( object );
control.scale = 0.65;
this.scene.add( control.gizmo );
this.controls.push( control );
};
init();
function init() {
scene = new THREE.Scene();
light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 0, 0, 1 );
scene.add( light );
var faceIndices = [ 'a', 'b', 'c', 'd' ];
var color, f, f2, f3, p, n, vertexIndex,
radius = 200,
geometry = new THREE.IcosahedronGeometry( radius, 1 ),
geometry2 = new THREE.IcosahedronGeometry( radius, 1 ),
geometry3 = new THREE.IcosahedronGeometry( radius, 1 );
for ( var i = 0; i < geometry.faces.length; i ++ ) {
f = geometry.faces[ i ];
f2 = geometry2.faces[ i ];
f3 = geometry3.faces[ i ];
n = ( f instanceof THREE.Face3 ) ? 3 : 4;
for( var j = 0; j < n; j++ ) {
vertexIndex = f[ faceIndices[ j ] ];
p = geometry.vertices[ vertexIndex ];
color = new THREE.Color( 0xffffff );
color.setHSL( ( p.y / radius + 1 ) / 2, 1.0, 0.5 );
f.vertexColors[ j ] = color;
color = new THREE.Color( 0xffffff );
color.setHSL( 0.0, ( p.y / radius + 1 ) / 2, 0.5 );
f2.vertexColors[ j ] = color;
color = new THREE.Color( 0xffffff );
color.setHSL( 0.125 * vertexIndex/geometry.vertices.length, 1.0, 0.5 );
f3.vertexColors[ j ] = color;
}
}
var materials = [
new THREE.MeshLambertMaterial( { color: 0xffffff, shading: THREE.FlatShading, vertexColors: THREE.VertexColors } ),
new THREE.MeshBasicMaterial( { color: 0x000000, shading: THREE.FlatShading, wireframe: true, transparent: true } )
];
group1 = THREE.SceneUtils.createMultiMaterialObject( geometry, materials );
group1.position.x = -400;
group1.rotation.x = -0;
scene.add( group1 );
group2 = THREE.SceneUtils.createMultiMaterialObject( geometry2, materials );
group2.position.x = 400;
group2.rotation.x = 0;
scene.add( group2 );
group3 = THREE.SceneUtils.createMultiMaterialObject( geometry3, materials );
group3.position.x = 0;
group3.rotation.x = 0;
scene.add( group3 );
container = document.getElementById( 'container' );
windowManager = new WindowManager( container, scene );
var newViewButton = document.getElementById( 'newview' );
newViewButton.addEventListener( 'click', windowManager.__proto__.createWindow.bind( windowManager ) );
windowManager.addTransformControl( group1 );
windowManager.addTransformControl( group2 );
windowManager.addTransformControl( group3 );
windowManager.updateAllWindows();
}
</script>
</body>
</html>