diff --git a/build/three.js b/build/three.js
index 2c8340a06ee5f80b2995341696819879832eee5b..f7ddd0f920f21c0754d68785206f960b7a8a9003 100644
--- a/build/three.js
+++ b/build/three.js
@@ -5454,53 +5454,70 @@ THREE.Ray.prototype = {
 
 	}(),
 
-	distanceSqToSegment: function ( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {
+	distanceSqToSegment: function () {
 
-		// from http://www.geometrictools.com/LibMathematics/Distance/Wm5DistRay3Segment3.cpp
-		// It returns the min distance between the ray and the segment
-		// defined by v0 and v1
-		// It can also set two optional targets :
-		// - The closest point on the ray
-		// - The closest point on the segment
+		var segCenter = new THREE.Vector3();
+		var segDir = new THREE.Vector3();
+		var diff = new THREE.Vector3();
+
+		return function ( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {
+
+			// from http://www.geometrictools.com/LibMathematics/Distance/Wm5DistRay3Segment3.cpp
+			// It returns the min distance between the ray and the segment
+			// defined by v0 and v1
+			// It can also set two optional targets :
+			// - The closest point on the ray
+			// - The closest point on the segment
+
+			segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );
+			segDir.copy( v1 ).sub( v0 ).normalize();
+			diff.copy( this.origin ).sub( segCenter );
+
+			var segExtent = v0.distanceTo( v1 ) * 0.5;
+			var a01 = - this.direction.dot( segDir );
+			var b0 = diff.dot( this.direction );
+			var b1 = - diff.dot( segDir );
+			var c = diff.lengthSq();
+			var det = Math.abs( 1 - a01 * a01 );
+			var s0, s1, sqrDist, extDet;
+
+			if ( det > 0 ) {
+
+				// The ray and segment are not parallel.
+
+				s0 = a01 * b1 - b0;
+				s1 = a01 * b0 - b1;
+				extDet = segExtent * det;
 
-		var segCenter = v0.clone().add( v1 ).multiplyScalar( 0.5 );
-		var segDir = v1.clone().sub( v0 ).normalize();
-		var segExtent = v0.distanceTo( v1 ) * 0.5;
-		var diff = this.origin.clone().sub( segCenter );
-		var a01 = - this.direction.dot( segDir );
-		var b0 = diff.dot( this.direction );
-		var b1 = - diff.dot( segDir );
-		var c = diff.lengthSq();
-		var det = Math.abs( 1 - a01 * a01 );
-		var s0, s1, sqrDist, extDet;
+				if ( s0 >= 0 ) {
 
-		if ( det > 0 ) {
+					if ( s1 >= - extDet ) {
 
-			// The ray and segment are not parallel.
+						if ( s1 <= extDet ) {
 
-			s0 = a01 * b1 - b0;
-			s1 = a01 * b0 - b1;
-			extDet = segExtent * det;
+							// region 0
+							// Minimum at interior points of ray and segment.
 
-			if ( s0 >= 0 ) {
+							var invDet = 1 / det;
+							s0 *= invDet;
+							s1 *= invDet;
+							sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;
 
-				if ( s1 >= - extDet ) {
+						} else {
 
-					if ( s1 <= extDet ) {
+							// region 1
 
-						// region 0
-						// Minimum at interior points of ray and segment.
+							s1 = segExtent;
+							s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
+							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
 
-						var invDet = 1 / det;
-						s0 *= invDet;
-						s1 *= invDet;
-						sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;
+						}
 
 					} else {
 
-						// region 1
+						// region 5
 
-						s1 = segExtent;
+						s1 = - segExtent;
 						s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
 						sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
 
@@ -5508,69 +5525,62 @@ THREE.Ray.prototype = {
 
 				} else {
 
-					// region 5
+					if ( s1 <= - extDet ) {
 
-					s1 = - segExtent;
-					s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
-					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+						// region 4
 
-				}
+						s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );
+						s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
+						sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
 
-			} else {
+					} else if ( s1 <= extDet ) {
 
-				if ( s1 <= - extDet ) {
+						// region 3
 
-					// region 4
+						s0 = 0;
+						s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );
+						sqrDist = s1 * ( s1 + 2 * b1 ) + c;
 
-					s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );
-					s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
-					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+					} else {
 
-				} else if ( s1 <= extDet ) {
+						// region 2
 
-					// region 3
+						s0 = Math.max( 0, - ( a01 * segExtent + b0 ) );
+						s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
+						sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
 
-					s0 = 0;
-					s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );
-					sqrDist = s1 * ( s1 + 2 * b1 ) + c;
+					}
 
-				} else {
+				}
 
-					// region 2
+			} else {
 
-					s0 = Math.max( 0, - ( a01 * segExtent + b0 ) );
-					s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
-					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+				// Ray and segment are parallel.
 
-				}
+				s1 = ( a01 > 0 ) ? - segExtent : segExtent;
+				s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
+				sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
 
 			}
 
-		} else {
-
-			// Ray and segment are parallel.
+			if ( optionalPointOnRay ) {
 
-			s1 = ( a01 > 0 ) ? - segExtent : segExtent;
-			s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
-			sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
-
-		}
+				optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );
 
-		if ( optionalPointOnRay ) {
+			}
 
-			optionalPointOnRay.copy( this.direction.clone().multiplyScalar( s0 ).add( this.origin ) );
+			if ( optionalPointOnSegment ) {
 
-		}
+				optionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter );
 
-		if ( optionalPointOnSegment ) {
+			}
 
-			optionalPointOnSegment.copy( segDir.clone().multiplyScalar( s1 ).add( segCenter ) );
+			return sqrDist;
 
-		}
+		};
 
-		return sqrDist;
+	}(),
 
-	},
 
 	isIntersectionSphere: function ( sphere ) {
 
diff --git a/build/three.min.js b/build/three.min.js
index 5022d417fc90d11bc19eafaef279c8ac522308b9..22adbcc0020709131525582b5f1d52fc6b07db41 100644
--- a/build/three.min.js
+++ b/build/three.min.js
@@ -115,13 +115,13 @@ c;b.elements[2]*=c;b.elements[4]*=f;b.elements[5]*=f;b.elements[6]*=f;b.elements
 var e=-a;return this.makeFrustum(e*b,a*b,e,a,c,d)},makeOrthographic:function(a,b,c,d,e,f){var g=this.elements,h=b-a,k=c-d,n=f-e;g[0]=2/h;g[4]=0;g[8]=0;g[12]=-((b+a)/h);g[1]=0;g[5]=2/k;g[9]=0;g[13]=-((c+d)/k);g[2]=0;g[6]=0;g[10]=-2/n;g[14]=-((f+e)/n);g[3]=0;g[7]=0;g[11]=0;g[15]=1;return this},fromArray:function(a){this.elements.set(a);return this},toArray:function(){var a=this.elements;return[a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],a[10],a[11],a[12],a[13],a[14],a[15]]},clone:function(){return(new THREE.Matrix4).fromArray(this.elements)}};
 THREE.Ray=function(a,b){this.origin=void 0!==a?a:new THREE.Vector3;this.direction=void 0!==b?b:new THREE.Vector3};
 THREE.Ray.prototype={constructor:THREE.Ray,set:function(a,b){this.origin.copy(a);this.direction.copy(b);return this},copy:function(a){this.origin.copy(a.origin);this.direction.copy(a.direction);return this},at:function(a,b){return(b||new THREE.Vector3).copy(this.direction).multiplyScalar(a).add(this.origin)},recast:function(){var a=new THREE.Vector3;return function(b){this.origin.copy(this.at(b,a));return this}}(),closestPointToPoint:function(a,b){var c=b||new THREE.Vector3;c.subVectors(a,this.origin);
-var d=c.dot(this.direction);return 0>d?c.copy(this.origin):c.copy(this.direction).multiplyScalar(d).add(this.origin)},distanceToPoint:function(){var a=new THREE.Vector3;return function(b){var c=a.subVectors(b,this.origin).dot(this.direction);if(0>c)return this.origin.distanceTo(b);a.copy(this.direction).multiplyScalar(c).add(this.origin);return a.distanceTo(b)}}(),distanceSqToSegment:function(a,b,c,d){var e=a.clone().add(b).multiplyScalar(.5),f=b.clone().sub(a).normalize(),g=.5*a.distanceTo(b),h=
-this.origin.clone().sub(e);a=-this.direction.dot(f);b=h.dot(this.direction);var k=-h.dot(f),n=h.lengthSq(),p=Math.abs(1-a*a),q,m;0<p?(h=a*k-b,q=a*b-k,m=g*p,0<=h?q>=-m?q<=m?(g=1/p,h*=g,q*=g,a=h*(h+a*q+2*b)+q*(a*h+q+2*k)+n):(q=g,h=Math.max(0,-(a*q+b)),a=-h*h+q*(q+2*k)+n):(q=-g,h=Math.max(0,-(a*q+b)),a=-h*h+q*(q+2*k)+n):q<=-m?(h=Math.max(0,-(-a*g+b)),q=0<h?-g:Math.min(Math.max(-g,-k),g),a=-h*h+q*(q+2*k)+n):q<=m?(h=0,q=Math.min(Math.max(-g,-k),g),a=q*(q+2*k)+n):(h=Math.max(0,-(a*g+b)),q=0<h?g:Math.min(Math.max(-g,
--k),g),a=-h*h+q*(q+2*k)+n)):(q=0<a?-g:g,h=Math.max(0,-(a*q+b)),a=-h*h+q*(q+2*k)+n);c&&c.copy(this.direction.clone().multiplyScalar(h).add(this.origin));d&&d.copy(f.clone().multiplyScalar(q).add(e));return a},isIntersectionSphere:function(a){return this.distanceToPoint(a.center)<=a.radius},intersectSphere:function(){var a=new THREE.Vector3;return function(b,c){a.subVectors(b.center,this.origin);var d=a.dot(this.direction),e=a.dot(a)-d*d,f=b.radius*b.radius;if(e>f)return null;f=Math.sqrt(f-e);e=d-f;
-d+=f;return 0>e&&0>d?null:0>e?this.at(d,c):this.at(e,c)}}(),isIntersectionPlane:function(a){var b=a.distanceToPoint(this.origin);return 0===b||0>a.normal.dot(this.direction)*b?!0:!1},distanceToPlane:function(a){var b=a.normal.dot(this.direction);if(0==b)return 0==a.distanceToPoint(this.origin)?0:null;a=-(this.origin.dot(a.normal)+a.constant)/b;return 0<=a?a:null},intersectPlane:function(a,b){var c=this.distanceToPlane(a);return null===c?null:this.at(c,b)},isIntersectionBox:function(){var a=new THREE.Vector3;
-return function(b){return null!==this.intersectBox(b,a)}}(),intersectBox:function(a,b){var c,d,e,f,g;d=1/this.direction.x;f=1/this.direction.y;g=1/this.direction.z;var h=this.origin;0<=d?(c=(a.min.x-h.x)*d,d*=a.max.x-h.x):(c=(a.max.x-h.x)*d,d*=a.min.x-h.x);0<=f?(e=(a.min.y-h.y)*f,f*=a.max.y-h.y):(e=(a.max.y-h.y)*f,f*=a.min.y-h.y);if(c>f||e>d)return null;if(e>c||c!==c)c=e;if(f<d||d!==d)d=f;0<=g?(e=(a.min.z-h.z)*g,g*=a.max.z-h.z):(e=(a.max.z-h.z)*g,g*=a.min.z-h.z);if(c>g||e>d)return null;if(e>c||c!==
-c)c=e;if(g<d||d!==d)d=g;return 0>d?null:this.at(0<=c?c:d,b)},intersectTriangle:function(){var a=new THREE.Vector3,b=new THREE.Vector3,c=new THREE.Vector3,d=new THREE.Vector3;return function(e,f,g,h,k){b.subVectors(f,e);c.subVectors(g,e);d.crossVectors(b,c);f=this.direction.dot(d);if(0<f){if(h)return null;h=1}else if(0>f)h=-1,f=-f;else return null;a.subVectors(this.origin,e);e=h*this.direction.dot(c.crossVectors(a,c));if(0>e)return null;g=h*this.direction.dot(b.cross(a));if(0>g||e+g>f)return null;
-e=-h*a.dot(d);return 0>e?null:this.at(e/f,k)}}(),applyMatrix4:function(a){this.direction.add(this.origin).applyMatrix4(a);this.origin.applyMatrix4(a);this.direction.sub(this.origin);this.direction.normalize();return this},equals:function(a){return a.origin.equals(this.origin)&&a.direction.equals(this.direction)},clone:function(){return(new THREE.Ray).copy(this)}};THREE.Sphere=function(a,b){this.center=void 0!==a?a:new THREE.Vector3;this.radius=void 0!==b?b:0};
+var d=c.dot(this.direction);return 0>d?c.copy(this.origin):c.copy(this.direction).multiplyScalar(d).add(this.origin)},distanceToPoint:function(){var a=new THREE.Vector3;return function(b){var c=a.subVectors(b,this.origin).dot(this.direction);if(0>c)return this.origin.distanceTo(b);a.copy(this.direction).multiplyScalar(c).add(this.origin);return a.distanceTo(b)}}(),distanceSqToSegment:function(){var a=new THREE.Vector3,b=new THREE.Vector3,c=new THREE.Vector3;return function(d,e,f,g){a.copy(d).add(e).multiplyScalar(.5);
+b.copy(e).sub(d).normalize();c.copy(this.origin).sub(a);var h=.5*d.distanceTo(e),k=-this.direction.dot(b),n=c.dot(this.direction),p=-c.dot(b),q=c.lengthSq(),m=Math.abs(1-k*k),t;0<m?(d=k*p-n,e=k*n-p,t=h*m,0<=d?e>=-t?e<=t?(h=1/m,d*=h,e*=h,k=d*(d+k*e+2*n)+e*(k*d+e+2*p)+q):(e=h,d=Math.max(0,-(k*e+n)),k=-d*d+e*(e+2*p)+q):(e=-h,d=Math.max(0,-(k*e+n)),k=-d*d+e*(e+2*p)+q):e<=-t?(d=Math.max(0,-(-k*h+n)),e=0<d?-h:Math.min(Math.max(-h,-p),h),k=-d*d+e*(e+2*p)+q):e<=t?(d=0,e=Math.min(Math.max(-h,-p),h),k=e*(e+
+2*p)+q):(d=Math.max(0,-(k*h+n)),e=0<d?h:Math.min(Math.max(-h,-p),h),k=-d*d+e*(e+2*p)+q)):(e=0<k?-h:h,d=Math.max(0,-(k*e+n)),k=-d*d+e*(e+2*p)+q);f&&f.copy(this.direction).multiplyScalar(d).add(this.origin);g&&g.copy(b).multiplyScalar(e).add(a);return k}}(),isIntersectionSphere:function(a){return this.distanceToPoint(a.center)<=a.radius},intersectSphere:function(){var a=new THREE.Vector3;return function(b,c){a.subVectors(b.center,this.origin);var d=a.dot(this.direction),e=a.dot(a)-d*d,f=b.radius*b.radius;
+if(e>f)return null;f=Math.sqrt(f-e);e=d-f;d+=f;return 0>e&&0>d?null:0>e?this.at(d,c):this.at(e,c)}}(),isIntersectionPlane:function(a){var b=a.distanceToPoint(this.origin);return 0===b||0>a.normal.dot(this.direction)*b?!0:!1},distanceToPlane:function(a){var b=a.normal.dot(this.direction);if(0==b)return 0==a.distanceToPoint(this.origin)?0:null;a=-(this.origin.dot(a.normal)+a.constant)/b;return 0<=a?a:null},intersectPlane:function(a,b){var c=this.distanceToPlane(a);return null===c?null:this.at(c,b)},
+isIntersectionBox:function(){var a=new THREE.Vector3;return function(b){return null!==this.intersectBox(b,a)}}(),intersectBox:function(a,b){var c,d,e,f,g;d=1/this.direction.x;f=1/this.direction.y;g=1/this.direction.z;var h=this.origin;0<=d?(c=(a.min.x-h.x)*d,d*=a.max.x-h.x):(c=(a.max.x-h.x)*d,d*=a.min.x-h.x);0<=f?(e=(a.min.y-h.y)*f,f*=a.max.y-h.y):(e=(a.max.y-h.y)*f,f*=a.min.y-h.y);if(c>f||e>d)return null;if(e>c||c!==c)c=e;if(f<d||d!==d)d=f;0<=g?(e=(a.min.z-h.z)*g,g*=a.max.z-h.z):(e=(a.max.z-h.z)*
+g,g*=a.min.z-h.z);if(c>g||e>d)return null;if(e>c||c!==c)c=e;if(g<d||d!==d)d=g;return 0>d?null:this.at(0<=c?c:d,b)},intersectTriangle:function(){var a=new THREE.Vector3,b=new THREE.Vector3,c=new THREE.Vector3,d=new THREE.Vector3;return function(e,f,g,h,k){b.subVectors(f,e);c.subVectors(g,e);d.crossVectors(b,c);f=this.direction.dot(d);if(0<f){if(h)return null;h=1}else if(0>f)h=-1,f=-f;else return null;a.subVectors(this.origin,e);e=h*this.direction.dot(c.crossVectors(a,c));if(0>e)return null;g=h*this.direction.dot(b.cross(a));
+if(0>g||e+g>f)return null;e=-h*a.dot(d);return 0>e?null:this.at(e/f,k)}}(),applyMatrix4:function(a){this.direction.add(this.origin).applyMatrix4(a);this.origin.applyMatrix4(a);this.direction.sub(this.origin);this.direction.normalize();return this},equals:function(a){return a.origin.equals(this.origin)&&a.direction.equals(this.direction)},clone:function(){return(new THREE.Ray).copy(this)}};THREE.Sphere=function(a,b){this.center=void 0!==a?a:new THREE.Vector3;this.radius=void 0!==b?b:0};
 THREE.Sphere.prototype={constructor:THREE.Sphere,set:function(a,b){this.center.copy(a);this.radius=b;return this},setFromPoints:function(){var a=new THREE.Box3;return function(b,c){var d=this.center;void 0!==c?d.copy(c):a.setFromPoints(b).center(d);for(var e=0,f=0,g=b.length;f<g;f++)e=Math.max(e,d.distanceToSquared(b[f]));this.radius=Math.sqrt(e);return this}}(),copy:function(a){this.center.copy(a.center);this.radius=a.radius;return this},empty:function(){return 0>=this.radius},containsPoint:function(a){return a.distanceToSquared(this.center)<=
 this.radius*this.radius},distanceToPoint:function(a){return a.distanceTo(this.center)-this.radius},intersectsSphere:function(a){var b=this.radius+a.radius;return a.center.distanceToSquared(this.center)<=b*b},clampPoint:function(a,b){var c=this.center.distanceToSquared(a),d=b||new THREE.Vector3;d.copy(a);c>this.radius*this.radius&&(d.sub(this.center).normalize(),d.multiplyScalar(this.radius).add(this.center));return d},getBoundingBox:function(a){a=a||new THREE.Box3;a.set(this.center,this.center);a.expandByScalar(this.radius);
 return a},applyMatrix4:function(a){this.center.applyMatrix4(a);this.radius*=a.getMaxScaleOnAxis();return this},translate:function(a){this.center.add(a);return this},equals:function(a){return a.center.equals(this.center)&&a.radius===this.radius},clone:function(){return(new THREE.Sphere).copy(this)}};
@@ -439,20 +439,20 @@ THREE.ShaderChunk.logdepthbuf_fragment,"\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tgl_Fra
 THREE.WebGLRenderer=function(a){function b(a){var b=a.geometry;a=a.material;var c=b.vertices.length;if(a.attributes){void 0===b.__webglCustomAttributesList&&(b.__webglCustomAttributesList=[]);for(var d in a.attributes){var e=a.attributes[d];if(!e.__webglInitialized||e.createUniqueBuffers){e.__webglInitialized=!0;var f=1;"v2"===e.type?f=2:"v3"===e.type?f=3:"v4"===e.type?f=4:"c"===e.type&&(f=3);e.size=f;e.array=new Float32Array(c*f);e.buffer=l.createBuffer();e.buffer.belongsToAttribute=d;e.needsUpdate=
 !0}b.__webglCustomAttributesList.push(e)}}}function c(a,b){var c=b.geometry,e=a.faces3,f=3*e.length,g=1*e.length,h=3*e.length,e=d(b,a);a.__vertexArray=new Float32Array(3*f);a.__normalArray=new Float32Array(3*f);a.__colorArray=new Float32Array(3*f);a.__uvArray=new Float32Array(2*f);1<c.faceVertexUvs.length&&(a.__uv2Array=new Float32Array(2*f));c.hasTangents&&(a.__tangentArray=new Float32Array(4*f));b.geometry.skinWeights.length&&b.geometry.skinIndices.length&&(a.__skinIndexArray=new Float32Array(4*
 f),a.__skinWeightArray=new Float32Array(4*f));c=null!==aa.get("OES_element_index_uint")&&21845<g?Uint32Array:Uint16Array;a.__typeArray=c;a.__faceArray=new c(3*g);a.__lineArray=new c(2*h);var k;if(a.numMorphTargets)for(a.__morphTargetsArrays=[],c=0,k=a.numMorphTargets;c<k;c++)a.__morphTargetsArrays.push(new Float32Array(3*f));if(a.numMorphNormals)for(a.__morphNormalsArrays=[],c=0,k=a.numMorphNormals;c<k;c++)a.__morphNormalsArrays.push(new Float32Array(3*f));a.__webglFaceCount=3*g;a.__webglLineCount=
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@@ -476,8 +476,8 @@ else for(ua=0;ua<Kb;ua++)Qa=ca.value[ua],ca.array[ba]=Qa.x,ca.array[ba+1]=Qa.y,c
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+v;s++){var u=b[s];u.onlyShadow||!1===u.visible||(u instanceof THREE.DirectionalLight&&n++,u instanceof THREE.PointLight&&q++,u instanceof THREE.SpotLight&&r++,u instanceof THREE.HemisphereLight&&t++)}f=n;g=q;h=r;k=t;for(var x,y=0,C=0,G=b.length;C<G;C++){var A=b[C];A.castShadow&&(A instanceof THREE.SpotLight&&y++,A instanceof THREE.DirectionalLight&&!A.shadowCascade&&y++)}x=y;var D;if(Nb&&e&&e.skeleton&&e.skeleton.useVertexTexture)D=1024;else{var H=l.getParameter(l.MAX_VERTEX_UNIFORM_VECTORS),L=Math.floor((H-
 20)/4);void 0!==e&&e instanceof THREE.SkinnedMesh&&(L=Math.min(e.skeleton.bones.length,L),L<e.skeleton.bones.length&&console.warn("WebGLRenderer: too many bones - "+e.skeleton.bones.length+", this GPU supports just "+L+" (try OpenGL instead of ANGLE)"));D=L}var K={precision:ga,supportsVertexTextures:Vb,map:!!d.map,envMap:!!d.envMap,envMapMode:d.envMap&&d.envMap.mapping,lightMap:!!d.lightMap,bumpMap:!!d.bumpMap,normalMap:!!d.normalMap,specularMap:!!d.specularMap,alphaMap:!!d.alphaMap,combine:d.combine,
 vertexColors:d.vertexColors,fog:c,useFog:d.fog,fogExp:c instanceof THREE.FogExp2,sizeAttenuation:d.sizeAttenuation,logarithmicDepthBuffer:X,skinning:d.skinning,maxBones:D,useVertexTexture:Nb&&e&&e.skeleton&&e.skeleton.useVertexTexture,morphTargets:d.morphTargets,morphNormals:d.morphNormals,maxMorphTargets:J.maxMorphTargets,maxMorphNormals:J.maxMorphNormals,maxDirLights:f,maxPointLights:g,maxSpotLights:h,maxHemiLights:k,maxShadows:x,shadowMapEnabled:J.shadowMapEnabled&&e.receiveShadow&&0<x,shadowMapType:J.shadowMapType,
 shadowMapDebug:J.shadowMapDebug,shadowMapCascade:J.shadowMapCascade,alphaTest:d.alphaTest,metal:d.metal,wrapAround:d.wrapAround,doubleSided:d.side===THREE.DoubleSide,flipSided:d.side===THREE.BackSide},N=[];m?N.push(m):(N.push(d.fragmentShader),N.push(d.vertexShader));if(void 0!==d.defines)for(var O in d.defines)N.push(O),N.push(d.defines[O]);for(O in K)N.push(O),N.push(K[O]);for(var W=N.join(),pa,Ea=0,db=Xa.length;Ea<db;Ea++){var Fa=Xa[Ea];if(Fa.code===W){pa=Fa;pa.usedTimes++;break}}void 0===pa&&
@@ -536,13 +536,13 @@ Sa=-1},Jb=function(a){a=a.target;a.removeEventListener("dispose",Jb);a.image&&a.
 0;6>b;b++)l.deleteFramebuffer(a.__webglFramebuffer[b]),l.deleteRenderbuffer(a.__webglRenderbuffer[b]);else l.deleteFramebuffer(a.__webglFramebuffer),l.deleteRenderbuffer(a.__webglRenderbuffer);delete a.__webglFramebuffer;delete a.__webglRenderbuffer}J.info.memory.textures--},mc=function(a){a=a.target;a.removeEventListener("dispose",mc);lc(a)},Bc=function(a){for(var b="__webglVertexBuffer __webglNormalBuffer __webglTangentBuffer __webglColorBuffer __webglUVBuffer __webglUV2Buffer __webglSkinIndicesBuffer __webglSkinWeightsBuffer __webglFaceBuffer __webglLineBuffer __webglLineDistanceBuffer".split(" "),
 c=0,d=b.length;c<d;c++){var e=b[c];void 0!==a[e]&&(l.deleteBuffer(a[e]),delete a[e])}if(void 0!==a.__webglCustomAttributesList){for(e in a.__webglCustomAttributesList)l.deleteBuffer(a.__webglCustomAttributesList[e].buffer);delete a.__webglCustomAttributesList}J.info.memory.geometries--},lc=function(a){var b=a.program.program;if(void 0!==b){a.program=void 0;var c,d,e=!1;a=0;for(c=Xa.length;a<c;a++)if(d=Xa[a],d.program===b){d.usedTimes--;0===d.usedTimes&&(e=!0);break}if(!0===e){e=[];a=0;for(c=Xa.length;a<
 c;a++)d=Xa[a],d.program!==b&&e.push(d);Xa=e;l.deleteProgram(b);J.info.memory.programs--}}};this.renderBufferImmediate=function(a,b,c){f();a.hasPositions&&!a.__webglVertexBuffer&&(a.__webglVertexBuffer=l.createBuffer());a.hasNormals&&!a.__webglNormalBuffer&&(a.__webglNormalBuffer=l.createBuffer());a.hasUvs&&!a.__webglUvBuffer&&(a.__webglUvBuffer=l.createBuffer());a.hasColors&&!a.__webglColorBuffer&&(a.__webglColorBuffer=l.createBuffer());a.hasPositions&&(l.bindBuffer(l.ARRAY_BUFFER,a.__webglVertexBuffer),
-l.bufferData(l.ARRAY_BUFFER,a.positionArray,l.DYNAMIC_DRAW),g(b.attributes.position),l.vertexAttribPointer(b.attributes.position,3,l.FLOAT,!1,0,0));if(a.hasNormals){l.bindBuffer(l.ARRAY_BUFFER,a.__webglNormalBuffer);if(c.shading===THREE.FlatShading){var d,e,k,m,n,p,q,r,t,s,v,u=3*a.count;for(v=0;v<u;v+=9)s=a.normalArray,d=s[v],e=s[v+1],k=s[v+2],m=s[v+3],p=s[v+4],r=s[v+5],n=s[v+6],q=s[v+7],t=s[v+8],d=(d+m+n)/3,e=(e+p+q)/3,k=(k+r+t)/3,s[v]=d,s[v+1]=e,s[v+2]=k,s[v+3]=d,s[v+4]=e,s[v+5]=k,s[v+6]=d,s[v+
+l.bufferData(l.ARRAY_BUFFER,a.positionArray,l.DYNAMIC_DRAW),g(b.attributes.position),l.vertexAttribPointer(b.attributes.position,3,l.FLOAT,!1,0,0));if(a.hasNormals){l.bindBuffer(l.ARRAY_BUFFER,a.__webglNormalBuffer);if(c.shading===THREE.FlatShading){var d,e,k,m,p,n,q,r,t,s,v,u=3*a.count;for(v=0;v<u;v+=9)s=a.normalArray,d=s[v],e=s[v+1],k=s[v+2],m=s[v+3],n=s[v+4],r=s[v+5],p=s[v+6],q=s[v+7],t=s[v+8],d=(d+m+p)/3,e=(e+n+q)/3,k=(k+r+t)/3,s[v]=d,s[v+1]=e,s[v+2]=k,s[v+3]=d,s[v+4]=e,s[v+5]=k,s[v+6]=d,s[v+
 7]=e,s[v+8]=k}l.bufferData(l.ARRAY_BUFFER,a.normalArray,l.DYNAMIC_DRAW);g(b.attributes.normal);l.vertexAttribPointer(b.attributes.normal,3,l.FLOAT,!1,0,0)}a.hasUvs&&c.map&&(l.bindBuffer(l.ARRAY_BUFFER,a.__webglUvBuffer),l.bufferData(l.ARRAY_BUFFER,a.uvArray,l.DYNAMIC_DRAW),g(b.attributes.uv),l.vertexAttribPointer(b.attributes.uv,2,l.FLOAT,!1,0,0));a.hasColors&&c.vertexColors!==THREE.NoColors&&(l.bindBuffer(l.ARRAY_BUFFER,a.__webglColorBuffer),l.bufferData(l.ARRAY_BUFFER,a.colorArray,l.DYNAMIC_DRAW),
 g(b.attributes.color),l.vertexAttribPointer(b.attributes.color,3,l.FLOAT,!1,0,0));h();l.drawArrays(l.TRIANGLES,0,a.count);a.count=0};this.renderBufferDirect=function(a,b,c,d,g,h){if(!1!==d.visible)if(v(h),a=x(a,b,c,d,h),b=!1,c=16777215*g.id+2*a.id+(d.wireframe?1:0),c!==Sa&&(Sa=c,b=!0),b&&f(),h instanceof THREE.Mesh)if(h=!0===d.wireframe?l.LINES:l.TRIANGLES,c=g.attributes.index){var k,m;c.array instanceof Uint32Array&&aa.get("OES_element_index_uint")?(k=l.UNSIGNED_INT,m=4):(k=l.UNSIGNED_SHORT,m=2);
-var n=g.offsets;if(0===n.length)b&&(e(d,a,g,0),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer)),l.drawElements(h,c.array.length,k,0),J.info.render.calls++,J.info.render.vertices+=c.array.length,J.info.render.faces+=c.array.length/3;else{b=!0;for(var p=0,q=n.length;p<q;p++){var r=n[p].index;b&&(e(d,a,g,r),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer));l.drawElements(h,n[p].count,k,n[p].start*m);J.info.render.calls++;J.info.render.vertices+=n[p].count;J.info.render.faces+=n[p].count/3}}}else b&&e(d,a,
-g,0),d=g.attributes.position,l.drawArrays(h,0,d.array.length/3),J.info.render.calls++,J.info.render.vertices+=d.array.length/3,J.info.render.faces+=d.array.length/9;else if(h instanceof THREE.PointCloud)if(h=l.POINTS,c=g.attributes.index)if(c.array instanceof Uint32Array&&aa.get("OES_element_index_uint")?(k=l.UNSIGNED_INT,m=4):(k=l.UNSIGNED_SHORT,m=2),n=g.offsets,0===n.length)b&&(e(d,a,g,0),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer)),l.drawElements(h,c.array.length,k,0),J.info.render.calls++,J.info.render.points+=
-c.array.length;else for(1<n.length&&(b=!0),p=0,q=n.length;p<q;p++)r=n[p].index,b&&(e(d,a,g,r),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer)),l.drawElements(h,n[p].count,k,n[p].start*m),J.info.render.calls++,J.info.render.points+=n[p].count;else b&&e(d,a,g,0),d=g.attributes.position,l.drawArrays(h,0,d.array.length/3),J.info.render.calls++,J.info.render.points+=d.array.length/3;else if(h instanceof THREE.Line)if(h=h.mode===THREE.LineStrip?l.LINE_STRIP:l.LINES,D(d.linewidth),c=g.attributes.index)if(c.array instanceof
-Uint32Array?(k=l.UNSIGNED_INT,m=4):(k=l.UNSIGNED_SHORT,m=2),n=g.offsets,0===n.length)b&&(e(d,a,g,0),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer)),l.drawElements(h,c.array.length,k,0),J.info.render.calls++,J.info.render.vertices+=c.array.length;else for(1<n.length&&(b=!0),p=0,q=n.length;p<q;p++)r=n[p].index,b&&(e(d,a,g,r),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer)),l.drawElements(h,n[p].count,k,n[p].start*m),J.info.render.calls++,J.info.render.vertices+=n[p].count;else b&&e(d,a,g,0),d=g.attributes.position,
+var p=g.offsets;if(0===p.length)b&&(e(d,a,g,0),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer)),l.drawElements(h,c.array.length,k,0),J.info.render.calls++,J.info.render.vertices+=c.array.length,J.info.render.faces+=c.array.length/3;else{b=!0;for(var n=0,q=p.length;n<q;n++){var r=p[n].index;b&&(e(d,a,g,r),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer));l.drawElements(h,p[n].count,k,p[n].start*m);J.info.render.calls++;J.info.render.vertices+=p[n].count;J.info.render.faces+=p[n].count/3}}}else b&&e(d,a,
+g,0),d=g.attributes.position,l.drawArrays(h,0,d.array.length/3),J.info.render.calls++,J.info.render.vertices+=d.array.length/3,J.info.render.faces+=d.array.length/9;else if(h instanceof THREE.PointCloud)if(h=l.POINTS,c=g.attributes.index)if(c.array instanceof Uint32Array&&aa.get("OES_element_index_uint")?(k=l.UNSIGNED_INT,m=4):(k=l.UNSIGNED_SHORT,m=2),p=g.offsets,0===p.length)b&&(e(d,a,g,0),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer)),l.drawElements(h,c.array.length,k,0),J.info.render.calls++,J.info.render.points+=
+c.array.length;else for(1<p.length&&(b=!0),n=0,q=p.length;n<q;n++)r=p[n].index,b&&(e(d,a,g,r),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer)),l.drawElements(h,p[n].count,k,p[n].start*m),J.info.render.calls++,J.info.render.points+=p[n].count;else b&&e(d,a,g,0),d=g.attributes.position,l.drawArrays(h,0,d.array.length/3),J.info.render.calls++,J.info.render.points+=d.array.length/3;else if(h instanceof THREE.Line)if(h=h.mode===THREE.LineStrip?l.LINE_STRIP:l.LINES,D(d.linewidth),c=g.attributes.index)if(c.array instanceof
+Uint32Array?(k=l.UNSIGNED_INT,m=4):(k=l.UNSIGNED_SHORT,m=2),p=g.offsets,0===p.length)b&&(e(d,a,g,0),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer)),l.drawElements(h,c.array.length,k,0),J.info.render.calls++,J.info.render.vertices+=c.array.length;else for(1<p.length&&(b=!0),n=0,q=p.length;n<q;n++)r=p[n].index,b&&(e(d,a,g,r),l.bindBuffer(l.ELEMENT_ARRAY_BUFFER,c.buffer)),l.drawElements(h,p[n].count,k,p[n].start*m),J.info.render.calls++,J.info.render.vertices+=p[n].count;else b&&e(d,a,g,0),d=g.attributes.position,
 l.drawArrays(h,0,d.array.length/3),J.info.render.calls++,J.info.render.points+=d.array.length/3};this.renderBuffer=function(a,b,c,d,e,k){if(!1!==d.visible){v(k);c=x(a,b,c,d,k);b=c.attributes;a=!1;c=16777215*e.id+2*c.id+(d.wireframe?1:0);c!==Sa&&(Sa=c,a=!0);a&&f();if(!d.morphTargets&&0<=b.position)a&&(l.bindBuffer(l.ARRAY_BUFFER,e.__webglVertexBuffer),g(b.position),l.vertexAttribPointer(b.position,3,l.FLOAT,!1,0,0));else if(k.morphTargetBase){c=d.program.attributes;-1!==k.morphTargetBase&&0<=c.position?
 (l.bindBuffer(l.ARRAY_BUFFER,e.__webglMorphTargetsBuffers[k.morphTargetBase]),g(c.position),l.vertexAttribPointer(c.position,3,l.FLOAT,!1,0,0)):0<=c.position&&(l.bindBuffer(l.ARRAY_BUFFER,e.__webglVertexBuffer),g(c.position),l.vertexAttribPointer(c.position,3,l.FLOAT,!1,0,0));if(k.morphTargetForcedOrder.length)for(var m=0,n=k.morphTargetForcedOrder,q=k.morphTargetInfluences;m<d.numSupportedMorphTargets&&m<n.length;)0<=c["morphTarget"+m]&&(l.bindBuffer(l.ARRAY_BUFFER,e.__webglMorphTargetsBuffers[n[m]]),
 g(c["morphTarget"+m]),l.vertexAttribPointer(c["morphTarget"+m],3,l.FLOAT,!1,0,0)),0<=c["morphNormal"+m]&&d.morphNormals&&(l.bindBuffer(l.ARRAY_BUFFER,e.__webglMorphNormalsBuffers[n[m]]),g(c["morphNormal"+m]),l.vertexAttribPointer(c["morphNormal"+m],3,l.FLOAT,!1,0,0)),k.__webglMorphTargetInfluences[m]=q[n[m]],m++;else{var n=[],q=k.morphTargetInfluences,r,s=q.length;for(r=0;r<s;r++)m=q[r],0!==m&&n.push([m,r]);n.length>d.numSupportedMorphTargets?(n.sort(p),n.length=d.numSupportedMorphTargets):n.length>