Doodle3D-Slicer/three.js-master/examples/js/renderers/CSS3DStereoRenderer.js
2015-06-12 15:58:26 +02:00

330 lines
8.4 KiB
JavaScript
Executable File

/**
* @author mrdoob / http://mrdoob.com/
*/
THREE.CSS3DObject = function ( element ) {
THREE.Object3D.call( this );
this.elementL = element.cloneNode( true );
this.elementL.style.position = 'absolute';
this.elementR = element.cloneNode( true );
this.elementR.style.position = 'absolute';
this.addEventListener( 'removed', function ( event ) {
if ( this.elementL.parentNode !== null ) {
this.elementL.parentNode.removeChild( this.elementL );
}
if ( this.elementR.parentNode !== null ) {
this.elementR.parentNode.removeChild( this.elementR );
}
} );
};
THREE.CSS3DObject.prototype = Object.create( THREE.Object3D.prototype );
THREE.CSS3DObject.prototype.constructor = THREE.CSS3DObject;
THREE.CSS3DSprite = function ( element ) {
THREE.CSS3DObject.call( this, element );
};
THREE.CSS3DSprite.prototype = Object.create( THREE.CSS3DObject.prototype );
THREE.CSS3DSprite.prototype.constructor = THREE.CSS3DSprite;
//
THREE.CSS3DStereoRenderer = function () {
console.log( 'THREE.CSS3DRenderer', THREE.REVISION );
var _width, _height;
var _widthHalf, _heightHalf;
var matrix = new THREE.Matrix4();
var _position = new THREE.Vector3();
var _quaternion = new THREE.Quaternion();
var _scale = new THREE.Vector3();
var _cameraL = new THREE.PerspectiveCamera();
var _cameraR = new THREE.PerspectiveCamera();
var _target = new THREE.Vector3();
this.separation = 6;
this.targetDistance = 500;
//
var domElement = document.createElement( 'div' );
this.domElement = domElement;
//
var domElementL = document.createElement( 'div' );
domElementL.style.display = 'inline-block';
domElementL.style.overflow = 'hidden';
domElementL.style.WebkitTransformStyle = 'preserve-3d';
domElementL.style.MozTransformStyle = 'preserve-3d';
domElementL.style.oTransformStyle = 'preserve-3d';
domElementL.style.transformStyle = 'preserve-3d';
domElement.appendChild( domElementL );
var cameraElementL = document.createElement( 'div' );
cameraElementL.style.WebkitTransformStyle = 'preserve-3d';
cameraElementL.style.MozTransformStyle = 'preserve-3d';
cameraElementL.style.oTransformStyle = 'preserve-3d';
cameraElementL.style.transformStyle = 'preserve-3d';
domElementL.appendChild( cameraElementL );
//
var domElementR = document.createElement( 'div' );
domElementR.style.display = 'inline-block';
domElementR.style.overflow = 'hidden';
domElementR.style.WebkitTransformStyle = 'preserve-3d';
domElementR.style.MozTransformStyle = 'preserve-3d';
domElementR.style.oTransformStyle = 'preserve-3d';
domElementR.style.transformStyle = 'preserve-3d';
domElement.appendChild( domElementR );
var cameraElementR = document.createElement( 'div' );
cameraElementR.style.WebkitTransformStyle = 'preserve-3d';
cameraElementR.style.MozTransformStyle = 'preserve-3d';
cameraElementR.style.oTransformStyle = 'preserve-3d';
cameraElementR.style.transformStyle = 'preserve-3d';
domElementR.appendChild( cameraElementR );
this.setClearColor = function () {
};
this.setSize = function ( width, height ) {
domElement.style.width = width + 'px';
domElement.style.height = height + 'px';
_width = width / 2;
_height = height;
_widthHalf = _width / 2;
_heightHalf = _height / 2;
domElementL.style.width = _width + 'px';
domElementL.style.height = _height + 'px';
cameraElementL.style.width = _width + 'px';
cameraElementL.style.height = _height + 'px';
domElementR.style.width = _width + 'px';
domElementR.style.height = _height + 'px';
cameraElementR.style.width = _width + 'px';
cameraElementR.style.height = _height + 'px';
};
var epsilon = function ( value ) {
return Math.abs( value ) < 0.000001 ? 0 : value;
};
var getCameraCSSMatrix = function ( matrix ) {
var elements = matrix.elements;
return 'matrix3d(' +
epsilon( elements[ 0 ] ) + ',' +
epsilon( - elements[ 1 ] ) + ',' +
epsilon( elements[ 2 ] ) + ',' +
epsilon( elements[ 3 ] ) + ',' +
epsilon( elements[ 4 ] ) + ',' +
epsilon( - elements[ 5 ] ) + ',' +
epsilon( elements[ 6 ] ) + ',' +
epsilon( elements[ 7 ] ) + ',' +
epsilon( elements[ 8 ] ) + ',' +
epsilon( - elements[ 9 ] ) + ',' +
epsilon( elements[ 10 ] ) + ',' +
epsilon( elements[ 11 ] ) + ',' +
epsilon( elements[ 12 ] ) + ',' +
epsilon( - elements[ 13 ] ) + ',' +
epsilon( elements[ 14 ] ) + ',' +
epsilon( elements[ 15 ] ) +
')';
};
var getObjectCSSMatrix = function ( matrix ) {
var elements = matrix.elements;
return 'translate3d(-50%,-50%,0) matrix3d(' +
epsilon( elements[ 0 ] ) + ',' +
epsilon( elements[ 1 ] ) + ',' +
epsilon( elements[ 2 ] ) + ',' +
epsilon( elements[ 3 ] ) + ',' +
epsilon( - elements[ 4 ] ) + ',' +
epsilon( - elements[ 5 ] ) + ',' +
epsilon( - elements[ 6 ] ) + ',' +
epsilon( - elements[ 7 ] ) + ',' +
epsilon( elements[ 8 ] ) + ',' +
epsilon( elements[ 9 ] ) + ',' +
epsilon( elements[ 10 ] ) + ',' +
epsilon( elements[ 11 ] ) + ',' +
epsilon( elements[ 12 ] ) + ',' +
epsilon( elements[ 13 ] ) + ',' +
epsilon( elements[ 14 ] ) + ',' +
epsilon( elements[ 15 ] ) +
')';
};
var renderObject = function ( object, camera, cameraElement, side ) {
if ( object instanceof THREE.CSS3DObject ) {
var style;
if ( object instanceof THREE.CSS3DSprite ) {
// http://swiftcoder.wordpress.com/2008/11/25/constructing-a-billboard-matrix/
matrix.copy( camera.matrixWorldInverse );
matrix.transpose();
matrix.copyPosition( object.matrixWorld );
matrix.scale( object.scale );
matrix.elements[ 3 ] = 0;
matrix.elements[ 7 ] = 0;
matrix.elements[ 11 ] = 0;
matrix.elements[ 15 ] = 1;
style = getObjectCSSMatrix( matrix );
} else {
style = getObjectCSSMatrix( object.matrixWorld );
}
var element = object[ 'element' + side ];
element.style.WebkitTransform = style;
element.style.MozTransform = style;
element.style.oTransform = style;
element.style.transform = style;
if ( element.parentNode !== cameraElement ) {
cameraElement.appendChild( element );
}
}
for ( var i = 0, l = object.children.length; i < l; i ++ ) {
renderObject( object.children[ i ], camera, cameraElement, side );
}
};
this.render = function ( scene, camera ) {
scene.updateMatrixWorld();
if ( camera.parent === undefined ) camera.updateMatrixWorld();
camera.matrixWorld.decompose( _position, _quaternion, _scale );
_target.set( 0, 0, - this.targetDistance );
_target.applyQuaternion( _quaternion );
_target.add( _position );
var fov = 0.5 / Math.tan( THREE.Math.degToRad( camera.fov * 0.5 ) ) * _height;
// Left
_cameraL.fov = camera.fov;
_cameraL.aspect = 0.5 * camera.aspect;
_cameraL.updateProjectionMatrix();
_cameraL.near = camera.near;
_cameraL.far = camera.far;
_cameraL.position.copy( _position );
_cameraL.translateX( - this.separation );
_cameraL.lookAt( _target );
_cameraL.updateMatrixWorld();
domElementL.style.WebkitPerspective = fov + "px";
domElementL.style.MozPerspective = fov + "px";
domElementL.style.oPerspective = fov + "px";
domElementL.style.perspective = fov + "px";
_cameraL.matrixWorldInverse.getInverse( _cameraL.matrixWorld );
var style = "translate3d(0,0," + fov + "px)" + getCameraCSSMatrix( _cameraL.matrixWorldInverse ) +
" translate3d(" + _widthHalf + "px," + _heightHalf + "px, 0)";
cameraElementL.style.WebkitTransform = style;
cameraElementL.style.MozTransform = style;
cameraElementL.style.oTransform = style;
cameraElementL.style.transform = style;
renderObject( scene, _cameraL, cameraElementL, 'L' );
// Right
_cameraR.projectionMatrix = _cameraL.projectionMatrix;
_cameraR.near = camera.near;
_cameraR.far = camera.far;
_cameraR.position.copy( _position );
_cameraR.translateX( this.separation );
_cameraR.lookAt( _target );
_cameraR.updateMatrixWorld();
domElementR.style.WebkitPerspective = fov + "px";
domElementR.style.MozPerspective = fov + "px";
domElementR.style.oPerspective = fov + "px";
domElementR.style.perspective = fov + "px";
_cameraR.matrixWorldInverse.getInverse( _cameraR.matrixWorld );
var style = "translate3d(0,0," + fov + "px)" + getCameraCSSMatrix( _cameraR.matrixWorldInverse ) +
" translate3d(" + _widthHalf + "px," + _heightHalf + "px, 0)";
cameraElementR.style.WebkitTransform = style;
cameraElementR.style.MozTransform = style;
cameraElementR.style.oTransform = style;
cameraElementR.style.transform = style;
renderObject( scene, _cameraR, cameraElementR, 'R' );
};
};