From 1bacebbfc14b28665d1e4e8d35770546a8b3b205 Mon Sep 17 00:00:00 2001
From: WestLangley <WestLangley@users.noreply.github.com>
Date: Sat, 27 Jul 2019 21:27:02 -0400
Subject: [PATCH] Added build files for live demo

---
 build/three.js        | 145 ++++++++++++++++++++++--------------------
 build/three.module.js | 145 ++++++++++++++++++++++--------------------
 2 files changed, 150 insertions(+), 140 deletions(-)

diff --git a/build/three.js b/build/three.js
index 1ffe64dc1b9967..56ffd8926941de 100644
--- a/build/three.js
+++ b/build/three.js
@@ -2349,6 +2349,8 @@
 	 * @author tschw
 	 */
 
+	var _vector;
+
 	function Matrix3() {
 
 		this.elements = [
@@ -2432,29 +2434,25 @@
 
 		},
 
-		applyToBufferAttribute: function () {
-
-			var v1 = new Vector3();
-
-			return function applyToBufferAttribute( attribute ) {
+		applyToBufferAttribute: function ( attribute ) {
 
-				for ( var i = 0, l = attribute.count; i < l; i ++ ) {
+			if ( _vector === undefined ) _vector = new Vector3();
 
-					v1.x = attribute.getX( i );
-					v1.y = attribute.getY( i );
-					v1.z = attribute.getZ( i );
+			for ( var i = 0, l = attribute.count; i < l; i ++ ) {
 
-					v1.applyMatrix3( this );
+				_vector.x = attribute.getX( i );
+				_vector.y = attribute.getY( i );
+				_vector.z = attribute.getZ( i );
 
-					attribute.setXYZ( i, v1.x, v1.y, v1.z );
+				_vector.applyMatrix3( this );
 
-				}
+				attribute.setXYZ( i, _vector.x, _vector.y, _vector.z );
 
-				return attribute;
+			}
 
-			};
+			return attribute;
 
-		}(),
+		},
 
 		multiply: function ( m ) {
 
@@ -4825,6 +4823,8 @@
 	 * @author bhouston / http://clara.io
 	 */
 
+	var _matrix, _quaternion;
+
 	function Euler( x, y, z, order ) {
 
 		this._x = x || 0;
@@ -5069,19 +5069,15 @@
 
 		},
 
-		setFromQuaternion: function () {
-
-			var matrix = new Matrix4();
-
-			return function setFromQuaternion( q, order, update ) {
+		setFromQuaternion: function ( q, order, update ) {
 
-				matrix.makeRotationFromQuaternion( q );
+			if ( _matrix === undefined ) _matrix = new Matrix4();
 
-				return this.setFromRotationMatrix( matrix, order, update );
+			_matrix.makeRotationFromQuaternion( q );
 
-			};
+			return this.setFromRotationMatrix( _matrix, order, update );
 
-		}(),
+		},
 
 		setFromVector3: function ( v, order ) {
 
@@ -5089,21 +5085,17 @@
 
 		},
 
-		reorder: function () {
+		reorder: function ( newOrder ) {
 
 			// WARNING: this discards revolution information -bhouston
 
-			var q = new Quaternion();
-
-			return function reorder( newOrder ) {
+			if ( _quaternion === undefined ) _quaternion = new Quaternion();
 
-				q.setFromEuler( this );
+			_quaternion.setFromEuler( this );
 
-				return this.setFromQuaternion( q, newOrder );
-
-			};
+			return this.setFromQuaternion( _quaternion, newOrder );
 
-		}(),
+		},
 
 		equals: function ( euler ) {
 
@@ -6807,6 +6799,8 @@
 	 * @author mrdoob / http://mrdoob.com/
 	 */
 
+	var _box;
+
 	function Sphere( center, radius ) {
 
 		this.center = ( center !== undefined ) ? center : new Vector3();
@@ -6825,39 +6819,35 @@
 
 		},
 
-		setFromPoints: function () {
+		setFromPoints: function ( points, optionalCenter ) {
 
-			var box = new Box3();
-
-			return function setFromPoints( points, optionalCenter ) {
-
-				var center = this.center;
+			if ( _box === undefined ) _box = new Box3();
 
-				if ( optionalCenter !== undefined ) {
+			var center = this.center;
 
-					center.copy( optionalCenter );
+			if ( optionalCenter !== undefined ) {
 
-				} else {
+				center.copy( optionalCenter );
 
-					box.setFromPoints( points ).getCenter( center );
+			} else {
 
-				}
+				_box.setFromPoints( points ).getCenter( center );
 
-				var maxRadiusSq = 0;
+			}
 
-				for ( var i = 0, il = points.length; i < il; i ++ ) {
+			var maxRadiusSq = 0;
 
-					maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );
+			for ( var i = 0, il = points.length; i < il; i ++ ) {
 
-				}
+				maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );
 
-				this.radius = Math.sqrt( maxRadiusSq );
+			}
 
-				return this;
+			this.radius = Math.sqrt( maxRadiusSq );
 
-			};
+			return this;
 
-		}(),
+		},
 
 		clone: function () {
 
@@ -14572,7 +14562,7 @@
 
 	var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
 
-	var meshphysical_frag = "#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
+	var meshphysical_frag = "#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n\tuniform float transparency;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tdiffuseColor.a *= saturate( 1. - transparency + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) );\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
 
 	var meshphysical_vert = "#define PHYSICAL\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
 
@@ -15180,7 +15170,8 @@
 			ShaderLib.standard.uniforms,
 			{
 				clearCoat: { value: 0 },
-				clearCoatRoughness: { value: 0 }
+				clearCoatRoughness: { value: 0 },
+				transparency: { value: 0 }
 			}
 		] ),
 
@@ -25347,6 +25338,8 @@
 			uniforms.clearCoat.value = material.clearCoat;
 			uniforms.clearCoatRoughness.value = material.clearCoatRoughness;
 
+			uniforms.transparency.value = material.transparency;
+
 		}
 
 		function refreshUniformsMatcap( uniforms, material ) {
@@ -32238,6 +32231,8 @@
 		this.clearCoat = 0.0;
 		this.clearCoatRoughness = 0.0;
 
+		this.transparency = 0.0;
+
 		this.setValues( parameters );
 
 	}
@@ -32258,6 +32253,8 @@
 		this.clearCoat = source.clearCoat;
 		this.clearCoatRoughness = source.clearCoatRoughness;
 
+		this.transparency = source.transparency;
+
 		return this;
 
 	};
@@ -40138,7 +40135,13 @@
 
 		var glyph = data.glyphs[ char ] || data.glyphs[ '?' ];
 
-		if ( ! glyph ) return;
+		if ( ! glyph ) {
+
+			console.error( 'THREE.Font: character "' + char + '" does not exists in font family ' + data.familyName + '.' );
+
+			return;
+
+		}
 
 		var path = new ShapePath();
 
@@ -45158,6 +45161,8 @@
 	 * @author bhouston / http://clara.io
 	 */
 
+	var _startP, _startEnd;
+
 	function Line3( start, end ) {
 
 		this.start = ( start !== undefined ) ? start : new Vector3();
@@ -45242,32 +45247,32 @@
 
 		},
 
-		closestPointToPointParameter: function () {
+		closestPointToPointParameter: function ( point, clampToLine ) {
 
-			var startP = new Vector3();
-			var startEnd = new Vector3();
+			if ( _startP === undefined ) {
 
-			return function closestPointToPointParameter( point, clampToLine ) {
+				_startP = new Vector3();
+				_startEnd = new Vector3();
 
-				startP.subVectors( point, this.start );
-				startEnd.subVectors( this.end, this.start );
+			}
 
-				var startEnd2 = startEnd.dot( startEnd );
-				var startEnd_startP = startEnd.dot( startP );
+			_startP.subVectors( point, this.start );
+			_startEnd.subVectors( this.end, this.start );
 
-				var t = startEnd_startP / startEnd2;
+			var startEnd2 = _startEnd.dot( _startEnd );
+			var startEnd_startP = _startEnd.dot( _startP );
 
-				if ( clampToLine ) {
+			var t = startEnd_startP / startEnd2;
 
-					t = _Math.clamp( t, 0, 1 );
+			if ( clampToLine ) {
 
-				}
+				t = _Math.clamp( t, 0, 1 );
 
-				return t;
+			}
 
-			};
+			return t;
 
-		}(),
+		},
 
 		closestPointToPoint: function ( point, clampToLine, target ) {
 
diff --git a/build/three.module.js b/build/three.module.js
index bec91f48d06955..60110eeb8cd63d 100644
--- a/build/three.module.js
+++ b/build/three.module.js
@@ -2343,6 +2343,8 @@ Object.assign( Vector3.prototype, {
  * @author tschw
  */
 
+var _vector;
+
 function Matrix3() {
 
 	this.elements = [
@@ -2426,29 +2428,25 @@ Object.assign( Matrix3.prototype, {
 
 	},
 
-	applyToBufferAttribute: function () {
-
-		var v1 = new Vector3();
-
-		return function applyToBufferAttribute( attribute ) {
+	applyToBufferAttribute: function ( attribute ) {
 
-			for ( var i = 0, l = attribute.count; i < l; i ++ ) {
+		if ( _vector === undefined ) _vector = new Vector3();
 
-				v1.x = attribute.getX( i );
-				v1.y = attribute.getY( i );
-				v1.z = attribute.getZ( i );
+		for ( var i = 0, l = attribute.count; i < l; i ++ ) {
 
-				v1.applyMatrix3( this );
+			_vector.x = attribute.getX( i );
+			_vector.y = attribute.getY( i );
+			_vector.z = attribute.getZ( i );
 
-				attribute.setXYZ( i, v1.x, v1.y, v1.z );
+			_vector.applyMatrix3( this );
 
-			}
+			attribute.setXYZ( i, _vector.x, _vector.y, _vector.z );
 
-			return attribute;
+		}
 
-		};
+		return attribute;
 
-	}(),
+	},
 
 	multiply: function ( m ) {
 
@@ -4819,6 +4817,8 @@ Object.assign( Matrix4.prototype, {
  * @author bhouston / http://clara.io
  */
 
+var _matrix, _quaternion;
+
 function Euler( x, y, z, order ) {
 
 	this._x = x || 0;
@@ -5063,19 +5063,15 @@ Object.assign( Euler.prototype, {
 
 	},
 
-	setFromQuaternion: function () {
-
-		var matrix = new Matrix4();
-
-		return function setFromQuaternion( q, order, update ) {
+	setFromQuaternion: function ( q, order, update ) {
 
-			matrix.makeRotationFromQuaternion( q );
+		if ( _matrix === undefined ) _matrix = new Matrix4();
 
-			return this.setFromRotationMatrix( matrix, order, update );
+		_matrix.makeRotationFromQuaternion( q );
 
-		};
+		return this.setFromRotationMatrix( _matrix, order, update );
 
-	}(),
+	},
 
 	setFromVector3: function ( v, order ) {
 
@@ -5083,21 +5079,17 @@ Object.assign( Euler.prototype, {
 
 	},
 
-	reorder: function () {
+	reorder: function ( newOrder ) {
 
 		// WARNING: this discards revolution information -bhouston
 
-		var q = new Quaternion();
-
-		return function reorder( newOrder ) {
+		if ( _quaternion === undefined ) _quaternion = new Quaternion();
 
-			q.setFromEuler( this );
+		_quaternion.setFromEuler( this );
 
-			return this.setFromQuaternion( q, newOrder );
-
-		};
+		return this.setFromQuaternion( _quaternion, newOrder );
 
-	}(),
+	},
 
 	equals: function ( euler ) {
 
@@ -6801,6 +6793,8 @@ Object.assign( Box3.prototype, {
  * @author mrdoob / http://mrdoob.com/
  */
 
+var _box;
+
 function Sphere( center, radius ) {
 
 	this.center = ( center !== undefined ) ? center : new Vector3();
@@ -6819,39 +6813,35 @@ Object.assign( Sphere.prototype, {
 
 	},
 
-	setFromPoints: function () {
+	setFromPoints: function ( points, optionalCenter ) {
 
-		var box = new Box3();
-
-		return function setFromPoints( points, optionalCenter ) {
-
-			var center = this.center;
+		if ( _box === undefined ) _box = new Box3();
 
-			if ( optionalCenter !== undefined ) {
+		var center = this.center;
 
-				center.copy( optionalCenter );
+		if ( optionalCenter !== undefined ) {
 
-			} else {
+			center.copy( optionalCenter );
 
-				box.setFromPoints( points ).getCenter( center );
+		} else {
 
-			}
+			_box.setFromPoints( points ).getCenter( center );
 
-			var maxRadiusSq = 0;
+		}
 
-			for ( var i = 0, il = points.length; i < il; i ++ ) {
+		var maxRadiusSq = 0;
 
-				maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );
+		for ( var i = 0, il = points.length; i < il; i ++ ) {
 
-			}
+			maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );
 
-			this.radius = Math.sqrt( maxRadiusSq );
+		}
 
-			return this;
+		this.radius = Math.sqrt( maxRadiusSq );
 
-		};
+		return this;
 
-	}(),
+	},
 
 	clone: function () {
 
@@ -14566,7 +14556,7 @@ var meshphong_frag = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissiv
 
 var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
 
-var meshphysical_frag = "#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
+var meshphysical_frag = "#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n\tuniform float transparency;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tdiffuseColor.a *= saturate( 1. - transparency + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) );\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
 
 var meshphysical_vert = "#define PHYSICAL\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
 
@@ -15174,7 +15164,8 @@ ShaderLib.physical = {
 		ShaderLib.standard.uniforms,
 		{
 			clearCoat: { value: 0 },
-			clearCoatRoughness: { value: 0 }
+			clearCoatRoughness: { value: 0 },
+			transparency: { value: 0 }
 		}
 	] ),
 
@@ -25341,6 +25332,8 @@ function WebGLRenderer( parameters ) {
 		uniforms.clearCoat.value = material.clearCoat;
 		uniforms.clearCoatRoughness.value = material.clearCoatRoughness;
 
+		uniforms.transparency.value = material.transparency;
+
 	}
 
 	function refreshUniformsMatcap( uniforms, material ) {
@@ -32232,6 +32225,8 @@ function MeshPhysicalMaterial( parameters ) {
 	this.clearCoat = 0.0;
 	this.clearCoatRoughness = 0.0;
 
+	this.transparency = 0.0;
+
 	this.setValues( parameters );
 
 }
@@ -32252,6 +32247,8 @@ MeshPhysicalMaterial.prototype.copy = function ( source ) {
 	this.clearCoat = source.clearCoat;
 	this.clearCoatRoughness = source.clearCoatRoughness;
 
+	this.transparency = source.transparency;
+
 	return this;
 
 };
@@ -40132,7 +40129,13 @@ function createPath( char, scale, offsetX, offsetY, data ) {
 
 	var glyph = data.glyphs[ char ] || data.glyphs[ '?' ];
 
-	if ( ! glyph ) return;
+	if ( ! glyph ) {
+
+		console.error( 'THREE.Font: character "' + char + '" does not exists in font family ' + data.familyName + '.' );
+
+		return;
+
+	}
 
 	var path = new ShapePath();
 
@@ -45152,6 +45155,8 @@ Object.assign( Box2.prototype, {
  * @author bhouston / http://clara.io
  */
 
+var _startP, _startEnd;
+
 function Line3( start, end ) {
 
 	this.start = ( start !== undefined ) ? start : new Vector3();
@@ -45236,32 +45241,32 @@ Object.assign( Line3.prototype, {
 
 	},
 
-	closestPointToPointParameter: function () {
+	closestPointToPointParameter: function ( point, clampToLine ) {
 
-		var startP = new Vector3();
-		var startEnd = new Vector3();
+		if ( _startP === undefined ) {
 
-		return function closestPointToPointParameter( point, clampToLine ) {
+			_startP = new Vector3();
+			_startEnd = new Vector3();
 
-			startP.subVectors( point, this.start );
-			startEnd.subVectors( this.end, this.start );
+		}
 
-			var startEnd2 = startEnd.dot( startEnd );
-			var startEnd_startP = startEnd.dot( startP );
+		_startP.subVectors( point, this.start );
+		_startEnd.subVectors( this.end, this.start );
 
-			var t = startEnd_startP / startEnd2;
+		var startEnd2 = _startEnd.dot( _startEnd );
+		var startEnd_startP = _startEnd.dot( _startP );
 
-			if ( clampToLine ) {
+		var t = startEnd_startP / startEnd2;
 
-				t = _Math.clamp( t, 0, 1 );
+		if ( clampToLine ) {
 
-			}
+			t = _Math.clamp( t, 0, 1 );
 
-			return t;
+		}
 
-		};
+		return t;
 
-	}(),
+	},
 
 	closestPointToPoint: function ( point, clampToLine, target ) {