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@@ -41,6 +41,7 @@ THREE.CSS3DRenderer = function () {
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console.log( 'THREE.CSS3DRenderer', THREE.REVISION );
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var _width, _height;
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+ var _widthHalf, _heightHalf;
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var matrix = new THREE.Matrix4();
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@@ -52,26 +53,18 @@ THREE.CSS3DRenderer = function () {
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var domElement = document.createElement( 'div' );
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domElement.style.overflow = 'hidden';
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- domElement.style.WebkitTransformStyle = 'preserve-3d';
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- domElement.style.MozTransformStyle = 'preserve-3d';
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- domElement.style.oTransformStyle = 'preserve-3d';
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- domElement.style.transformStyle = 'preserve-3d';
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-
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this.domElement = domElement;
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var cameraElement = document.createElement( 'div' );
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- cameraElement.style.position = 'absolute';
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- cameraElement.style.left = '50%';
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- cameraElement.style.top = '50%';
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-
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cameraElement.style.WebkitTransformStyle = 'preserve-3d';
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cameraElement.style.MozTransformStyle = 'preserve-3d';
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- cameraElement.style.oTransformStyle = 'preserve-3d';
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cameraElement.style.transformStyle = 'preserve-3d';
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domElement.appendChild( cameraElement );
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+ var isIE = /Trident/i.test( navigator.userAgent );
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+
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this.setClearColor = function () {};
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this.getSize = function () {
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@@ -87,15 +80,20 @@ THREE.CSS3DRenderer = function () {
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_width = width;
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_height = height;
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+ _widthHalf = _width / 2;
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+ _heightHalf = _height / 2;
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domElement.style.width = width + 'px';
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domElement.style.height = height + 'px';
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+ cameraElement.style.width = width + 'px';
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+ cameraElement.style.height = height + 'px';
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+
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};
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function epsilon( value ) {
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- return Math.abs( value ) < Number.EPSILON ? 0 : value;
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+ return Math.abs( value ) < 1e-10 ? 0 : value;
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}
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@@ -124,11 +122,10 @@ THREE.CSS3DRenderer = function () {
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}
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- function getObjectCSSMatrix( matrix ) {
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+ function getObjectCSSMatrix( matrix, cameraCSSMatrix ) {
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var elements = matrix.elements;
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-
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- return 'translate3d(-50%,-50%,0) matrix3d(' +
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+ var matrix3d = 'matrix3d(' +
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epsilon( elements[ 0 ] ) + ',' +
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epsilon( elements[ 1 ] ) + ',' +
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epsilon( elements[ 2 ] ) + ',' +
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@@ -147,9 +144,20 @@ THREE.CSS3DRenderer = function () {
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epsilon( elements[ 15 ] ) +
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')';
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+ if ( isIE ) {
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+
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+ return 'translate(-50%,-50%)' +
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+ 'translate(' + _widthHalf + 'px,' + _heightHalf + 'px)' +
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+ cameraCSSMatrix +
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+ matrix3d;
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+
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+ }
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+
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+ return 'translate(-50%,-50%)' + matrix3d;
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+
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}
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- function renderObject( object, camera ) {
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+ function renderObject( object, camera, cameraCSSMatrix ) {
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if ( object instanceof THREE.CSS3DObject ) {
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@@ -169,25 +177,30 @@ THREE.CSS3DRenderer = function () {
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matrix.elements[ 11 ] = 0;
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matrix.elements[ 15 ] = 1;
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- style = getObjectCSSMatrix( matrix );
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+ style = getObjectCSSMatrix( matrix, cameraCSSMatrix );
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} else {
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- style = getObjectCSSMatrix( object.matrixWorld );
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+ style = getObjectCSSMatrix( object.matrixWorld, cameraCSSMatrix );
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}
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var element = object.element;
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- var cachedStyle = cache.objects[ object.id ];
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+ var cachedStyle = cache.objects[ object.id ] && cache.objects[ object.id ].style;
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if ( cachedStyle === undefined || cachedStyle !== style ) {
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element.style.WebkitTransform = style;
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element.style.MozTransform = style;
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- element.style.oTransform = style;
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element.style.transform = style;
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- cache.objects[ object.id ] = style;
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+ cache.objects[ object.id ] = { style: style };
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+
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+ if ( isIE ) {
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+
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+ cache.objects[ object.id ].distanceToCameraSquared = getDistanceToSquared( camera, object );
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+
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+ }
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}
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@@ -201,22 +214,60 @@ THREE.CSS3DRenderer = function () {
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for ( var i = 0, l = object.children.length; i < l; i ++ ) {
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- renderObject( object.children[ i ], camera );
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+ renderObject( object.children[ i ], camera, cameraCSSMatrix );
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}
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}
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+ var getDistanceToSquared = function () {
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+
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+ var a = new THREE.Vector3();
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+ var b = new THREE.Vector3();
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+
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+ return function ( object1, object2 ) {
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+
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+ a.setFromMatrixPosition( object1.matrixWorld );
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+ b.setFromMatrixPosition( object2.matrixWorld );
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+
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+ return a.distanceToSquared( b );
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+
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+ };
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+
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+ }();
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+
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+ function zOrder( scene ) {
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+
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+ var order = Object.keys( cache.objects ).sort( function ( a, b ) {
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+
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+ return cache.objects[ a ].distanceToCameraSquared - cache.objects[ b ].distanceToCameraSquared;
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+
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+ } );
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+ var zMax = order.length;
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+
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+ scene.traverse( function ( object ) {
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+
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+ var index = order.indexOf( object.id + '' );
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+
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+ if ( index !== - 1 ) {
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+
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+ object.element.style.zIndex = zMax - index;
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+
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+ }
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+
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+ } );
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+
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+ }
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+
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this.render = function ( scene, camera ) {
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var fov = 0.5 / Math.tan( THREE.Math.degToRad( camera.getEffectiveFOV() * 0.5 ) ) * _height;
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if ( cache.camera.fov !== fov ) {
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- domElement.style.WebkitPerspective = fov + "px";
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- domElement.style.MozPerspective = fov + "px";
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- domElement.style.oPerspective = fov + "px";
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- domElement.style.perspective = fov + "px";
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+ domElement.style.WebkitPerspective = fov + 'px';
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+ domElement.style.MozPerspective = fov + 'px';
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+ domElement.style.perspective = fov + 'px';
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cache.camera.fov = fov;
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@@ -228,20 +279,33 @@ THREE.CSS3DRenderer = function () {
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camera.matrixWorldInverse.getInverse( camera.matrixWorld );
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- var style = 'translateZ(' + fov + 'px)' + getCameraCSSMatrix( camera.matrixWorldInverse );
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+ var cameraCSSMatrix = 'translateZ(' + fov + 'px)' +
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+ getCameraCSSMatrix( camera.matrixWorldInverse );
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+
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+ var style = cameraCSSMatrix +
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+ 'translate(' + _widthHalf + 'px,' + _heightHalf + 'px)';
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- if ( cache.camera.style !== style ) {
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+ if ( cache.camera.style !== style && ! isIE ) {
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cameraElement.style.WebkitTransform = style;
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cameraElement.style.MozTransform = style;
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- cameraElement.style.oTransform = style;
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cameraElement.style.transform = style;
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cache.camera.style = style;
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}
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- renderObject( scene, camera );
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+ renderObject( scene, camera, cameraCSSMatrix );
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+
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+ if ( isIE ) {
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+
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+ // IE10 and 11 does not support 'preserve-3d'.
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+ // Thus, z-order in 3D will not work.
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+ // We have to calc z-order manually and set CSS z-index for IE.
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+ // FYI: z-index can't handle object intersection
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+ zOrder( scene );
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+
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+ }
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};
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