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site/game/node_modules/three/examples/jsm/renderers/CSS2DRenderer.js

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+import {
+	Matrix4,
+	Object3D,
+	Vector2,
+	Vector3
+} from 'three';
+
+class CSS2DObject extends Object3D {
+
+	constructor( element = document.createElement( 'div' ) ) {
+
+		super();
+
+		this.isCSS2DObject = true;
+
+		this.element = element;
+
+		this.element.style.position = 'absolute';
+		this.element.style.userSelect = 'none';
+
+		this.element.setAttribute( 'draggable', false );
+
+		this.center = new Vector2( 0.5, 0.5 ); // ( 0, 0 ) is the lower left; ( 1, 1 ) is the top right
+
+		this.addEventListener( 'removed', function () {
+
+			this.traverse( function ( object ) {
+
+				if ( object.element instanceof Element && object.element.parentNode !== null ) {
+
+					object.element.parentNode.removeChild( object.element );
+
+				}
+
+			} );
+
+		} );
+
+	}
+
+	copy( source, recursive ) {
+
+		super.copy( source, recursive );
+
+		this.element = source.element.cloneNode( true );
+
+		this.center = source.center;
+
+		return this;
+
+	}
+
+}
+
+//
+
+const _vector = new Vector3();
+const _viewMatrix = new Matrix4();
+const _viewProjectionMatrix = new Matrix4();
+const _a = new Vector3();
+const _b = new Vector3();
+
+class CSS2DRenderer {
+
+	constructor( parameters = {} ) {
+
+		const _this = this;
+
+		let _width, _height;
+		let _widthHalf, _heightHalf;
+
+		const cache = {
+			objects: new WeakMap()
+		};
+
+		const domElement = parameters.element !== undefined ? parameters.element : document.createElement( 'div' );
+
+		domElement.style.overflow = 'hidden';
+
+		this.domElement = domElement;
+
+		this.getSize = function () {
+
+			return {
+				width: _width,
+				height: _height
+			};
+
+		};
+
+		this.render = function ( scene, camera ) {
+
+			if ( scene.matrixWorldAutoUpdate === true ) scene.updateMatrixWorld();
+			if ( camera.parent === null && camera.matrixWorldAutoUpdate === true ) camera.updateMatrixWorld();
+
+			_viewMatrix.copy( camera.matrixWorldInverse );
+			_viewProjectionMatrix.multiplyMatrices( camera.projectionMatrix, _viewMatrix );
+
+			renderObject( scene, scene, camera );
+			zOrder( scene );
+
+		};
+
+		this.setSize = function ( width, height ) {
+
+			_width = width;
+			_height = height;
+
+			_widthHalf = _width / 2;
+			_heightHalf = _height / 2;
+
+			domElement.style.width = width + 'px';
+			domElement.style.height = height + 'px';
+
+		};
+
+		function hideObject( object ) {
+
+			if ( object.isCSS2DObject ) object.element.style.display = 'none';
+
+			for ( let i = 0, l = object.children.length; i < l; i ++ ) {
+
+				hideObject( object.children[ i ] );
+
+			}
+
+		}
+
+		function renderObject( object, scene, camera ) {
+
+			if ( object.visible === false ) {
+
+				hideObject( object );
+
+				return;
+
+			}
+			
+			if ( object.isCSS2DObject ) {
+
+				_vector.setFromMatrixPosition( object.matrixWorld );
+				_vector.applyMatrix4( _viewProjectionMatrix );
+
+				const visible = ( _vector.z >= - 1 && _vector.z <= 1 ) && ( object.layers.test( camera.layers ) === true );
+
+				const element = object.element;
+				element.style.display = visible === true ? '' : 'none';
+
+				if ( visible === true ) {
+
+					object.onBeforeRender( _this, scene, camera );
+
+					element.style.transform = 'translate(' + ( - 100 * object.center.x ) + '%,' + ( - 100 * object.center.y ) + '%)' + 'translate(' + ( _vector.x * _widthHalf + _widthHalf ) + 'px,' + ( - _vector.y * _heightHalf + _heightHalf ) + 'px)';
+
+					if ( element.parentNode !== domElement ) {
+
+						domElement.appendChild( element );
+
+					}
+
+					object.onAfterRender( _this, scene, camera );
+
+				}
+
+				const objectData = {
+					distanceToCameraSquared: getDistanceToSquared( camera, object )
+				};
+
+				cache.objects.set( object, objectData );
+
+			}
+
+			for ( let i = 0, l = object.children.length; i < l; i ++ ) {
+
+				renderObject( object.children[ i ], scene, camera );
+
+			}
+
+		}
+
+		function getDistanceToSquared( object1, object2 ) {
+
+			_a.setFromMatrixPosition( object1.matrixWorld );
+			_b.setFromMatrixPosition( object2.matrixWorld );
+
+			return _a.distanceToSquared( _b );
+
+		}
+
+		function filterAndFlatten( scene ) {
+
+			const result = [];
+
+			scene.traverseVisible( function ( object ) {
+
+				if ( object.isCSS2DObject ) result.push( object );
+
+			} );
+
+			return result;
+
+		}
+
+		function zOrder( scene ) {
+
+			const sorted = filterAndFlatten( scene ).sort( function ( a, b ) {
+
+				if ( a.renderOrder !== b.renderOrder ) {
+
+					return b.renderOrder - a.renderOrder;
+
+				}
+
+				const distanceA = cache.objects.get( a ).distanceToCameraSquared;
+				const distanceB = cache.objects.get( b ).distanceToCameraSquared;
+
+				return distanceA - distanceB;
+
+			} );
+
+			const zMax = sorted.length;
+
+			for ( let i = 0, l = sorted.length; i < l; i ++ ) {
+
+				sorted[ i ].element.style.zIndex = zMax - i;
+
+			}
+
+		}
+
+	}
+
+}
+
+export { CSS2DObject, CSS2DRenderer };

site/game/node_modules/three/examples/jsm/renderers/CSS3DRenderer.js

@@ -0,0 +1,350 @@
+import {
+	Matrix4,
+	Object3D,
+	Quaternion,
+	Vector3
+} from 'three';
+
+/**
+ * Based on http://www.emagix.net/academic/mscs-project/item/camera-sync-with-css3-and-webgl-threejs
+ */
+
+const _position = new Vector3();
+const _quaternion = new Quaternion();
+const _scale = new Vector3();
+
+class CSS3DObject extends Object3D {
+
+	constructor( element = document.createElement( 'div' ) ) {
+
+		super();
+
+		this.isCSS3DObject = true;
+
+		this.element = element;
+		this.element.style.position = 'absolute';
+		this.element.style.pointerEvents = 'auto';
+		this.element.style.userSelect = 'none';
+
+		this.element.setAttribute( 'draggable', false );
+
+		this.addEventListener( 'removed', function () {
+
+			this.traverse( function ( object ) {
+
+				if ( object.element instanceof Element && object.element.parentNode !== null ) {
+
+					object.element.parentNode.removeChild( object.element );
+
+				}
+
+			} );
+
+		} );
+
+	}
+
+	copy( source, recursive ) {
+
+		super.copy( source, recursive );
+
+		this.element = source.element.cloneNode( true );
+
+		return this;
+
+	}
+
+}
+
+class CSS3DSprite extends CSS3DObject {
+
+	constructor( element ) {
+
+		super( element );
+
+		this.isCSS3DSprite = true;
+
+		this.rotation2D = 0;
+
+	}
+
+	copy( source, recursive ) {
+
+		super.copy( source, recursive );
+
+		this.rotation2D = source.rotation2D;
+
+		return this;
+
+	}
+
+}
+
+//
+
+const _matrix = new Matrix4();
+const _matrix2 = new Matrix4();
+
+class CSS3DRenderer {
+
+	constructor( parameters = {} ) {
+
+		const _this = this;
+
+		let _width, _height;
+		let _widthHalf, _heightHalf;
+
+		const cache = {
+			camera: { style: '' },
+			objects: new WeakMap()
+		};
+
+		const domElement = parameters.element !== undefined ? parameters.element : document.createElement( 'div' );
+
+		domElement.style.overflow = 'hidden';
+
+		this.domElement = domElement;
+
+		const viewElement = document.createElement( 'div' );
+		viewElement.style.transformOrigin = '0 0';
+		viewElement.style.pointerEvents = 'none';
+		domElement.appendChild( viewElement );
+
+		const cameraElement = document.createElement( 'div' );
+
+		cameraElement.style.transformStyle = 'preserve-3d';
+
+		viewElement.appendChild( cameraElement );
+
+		this.getSize = function () {
+
+			return {
+				width: _width,
+				height: _height
+			};
+
+		};
+
+		this.render = function ( scene, camera ) {
+
+			const fov = camera.projectionMatrix.elements[ 5 ] * _heightHalf;
+
+			if ( camera.view && camera.view.enabled ) {
+
+				// view offset
+				viewElement.style.transform = `translate( ${ - camera.view.offsetX * ( _width / camera.view.width ) }px, ${ - camera.view.offsetY * ( _height / camera.view.height ) }px )`;
+
+				// view fullWidth and fullHeight, view width and height
+				viewElement.style.transform += `scale( ${ camera.view.fullWidth / camera.view.width }, ${ camera.view.fullHeight / camera.view.height } )`;
+
+			} else {
+
+				viewElement.style.transform = '';
+
+			}
+
+			if ( scene.matrixWorldAutoUpdate === true ) scene.updateMatrixWorld();
+			if ( camera.parent === null && camera.matrixWorldAutoUpdate === true ) camera.updateMatrixWorld();
+
+			let tx, ty;
+
+			if ( camera.isOrthographicCamera ) {
+
+				tx = - ( camera.right + camera.left ) / 2;
+				ty = ( camera.top + camera.bottom ) / 2;
+
+			}
+
+			const scaleByViewOffset = camera.view && camera.view.enabled ? camera.view.height / camera.view.fullHeight : 1;
+			const cameraCSSMatrix = camera.isOrthographicCamera ?
+				`scale( ${ scaleByViewOffset } )` + 'scale(' + fov + ')' + 'translate(' + epsilon( tx ) + 'px,' + epsilon( ty ) + 'px)' + getCameraCSSMatrix( camera.matrixWorldInverse ) :
+				`scale( ${ scaleByViewOffset } )` + 'translateZ(' + fov + 'px)' + getCameraCSSMatrix( camera.matrixWorldInverse );
+			const perspective = camera.isPerspectiveCamera ? 'perspective(' + fov + 'px) ' : '';
+
+			const style = perspective + cameraCSSMatrix +
+				'translate(' + _widthHalf + 'px,' + _heightHalf + 'px)';
+
+			if ( cache.camera.style !== style ) {
+
+				cameraElement.style.transform = style;
+
+				cache.camera.style = style;
+
+			}
+
+			renderObject( scene, scene, camera, cameraCSSMatrix );
+
+		};
+
+		this.setSize = function ( width, height ) {
+
+			_width = width;
+			_height = height;
+			_widthHalf = _width / 2;
+			_heightHalf = _height / 2;
+
+			domElement.style.width = width + 'px';
+			domElement.style.height = height + 'px';
+
+			viewElement.style.width = width + 'px';
+			viewElement.style.height = height + 'px';
+
+			cameraElement.style.width = width + 'px';
+			cameraElement.style.height = height + 'px';
+
+		};
+
+		function epsilon( value ) {
+
+			return Math.abs( value ) < 1e-10 ? 0 : value;
+
+		}
+
+		function getCameraCSSMatrix( matrix ) {
+
+			const 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 ] ) +
+			')';
+
+		}
+
+		function getObjectCSSMatrix( matrix ) {
+
+			const elements = matrix.elements;
+			const matrix3d = '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 ] ) +
+			')';
+
+			return 'translate(-50%,-50%)' + matrix3d;
+
+		}
+
+		function hideObject( object ) {
+
+			if ( object.isCSS3DObject ) object.element.style.display = 'none';
+	  
+			for ( let i = 0, l = object.children.length; i < l; i ++ ) {
+
+			  hideObject( object.children[ i ] );
+
+			}
+
+		}
+
+		function renderObject( object, scene, camera, cameraCSSMatrix ) {
+
+			if ( object.visible === false ) {
+
+				hideObject( object );
+
+				return;
+
+			}
+
+			if ( object.isCSS3DObject ) {
+
+				const visible = ( object.layers.test( camera.layers ) === true );
+
+				const element = object.element;
+				element.style.display = visible === true ? '' : 'none';
+
+				if ( visible === true ) {
+
+					object.onBeforeRender( _this, scene, camera );
+
+					let style;
+
+					if ( object.isCSS3DSprite ) {
+
+						// http://swiftcoder.wordpress.com/2008/11/25/constructing-a-billboard-matrix/
+
+						_matrix.copy( camera.matrixWorldInverse );
+						_matrix.transpose();
+
+						if ( object.rotation2D !== 0 ) _matrix.multiply( _matrix2.makeRotationZ( object.rotation2D ) );
+
+						object.matrixWorld.decompose( _position, _quaternion, _scale );
+						_matrix.setPosition( _position );
+						_matrix.scale( _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 );
+
+					}
+
+					const cachedObject = cache.objects.get( object );
+
+					if ( cachedObject === undefined || cachedObject.style !== style ) {
+
+						element.style.transform = style;
+
+						const objectData = { style: style };
+						cache.objects.set( object, objectData );
+
+					}
+
+					if ( element.parentNode !== cameraElement ) {
+
+						cameraElement.appendChild( element );
+
+					}
+
+					object.onAfterRender( _this, scene, camera );
+
+				}
+
+			}
+
+			for ( let i = 0, l = object.children.length; i < l; i ++ ) {
+
+				renderObject( object.children[ i ], scene, camera, cameraCSSMatrix );
+
+			}
+
+		}
+
+	}
+
+}
+
+export { CSS3DObject, CSS3DSprite, CSS3DRenderer };

site/game/node_modules/three/examples/jsm/renderers/Projector.js

@@ -0,0 +1,918 @@
+import {
+	Box3,
+	Color,
+	DoubleSide,
+	Frustum,
+	Matrix3,
+	Matrix4,
+	Vector2,
+	Vector3,
+	Vector4
+} from 'three';
+
+class RenderableObject {
+
+	constructor() {
+
+		this.id = 0;
+
+		this.object = null;
+		this.z = 0;
+		this.renderOrder = 0;
+
+	}
+
+}
+
+//
+
+class RenderableFace {
+
+	constructor() {
+
+		this.id = 0;
+
+		this.v1 = new RenderableVertex();
+		this.v2 = new RenderableVertex();
+		this.v3 = new RenderableVertex();
+
+		this.normalModel = new Vector3();
+
+		this.vertexNormalsModel = [ new Vector3(), new Vector3(), new Vector3() ];
+		this.vertexNormalsLength = 0;
+
+		this.color = new Color();
+		this.material = null;
+		this.uvs = [ new Vector2(), new Vector2(), new Vector2() ];
+
+		this.z = 0;
+		this.renderOrder = 0;
+
+	}
+
+}
+
+//
+
+class RenderableVertex {
+
+	constructor() {
+
+		this.position = new Vector3();
+		this.positionWorld = new Vector3();
+		this.positionScreen = new Vector4();
+
+		this.visible = true;
+
+	}
+
+	copy( vertex ) {
+
+		this.positionWorld.copy( vertex.positionWorld );
+		this.positionScreen.copy( vertex.positionScreen );
+
+	}
+
+}
+
+//
+
+class RenderableLine {
+
+	constructor() {
+
+		this.id = 0;
+
+		this.v1 = new RenderableVertex();
+		this.v2 = new RenderableVertex();
+
+		this.vertexColors = [ new Color(), new Color() ];
+		this.material = null;
+
+		this.z = 0;
+		this.renderOrder = 0;
+
+	}
+
+}
+
+//
+
+class RenderableSprite {
+
+	constructor() {
+
+		this.id = 0;
+
+		this.object = null;
+
+		this.x = 0;
+		this.y = 0;
+		this.z = 0;
+
+		this.rotation = 0;
+		this.scale = new Vector2();
+
+		this.material = null;
+		this.renderOrder = 0;
+
+	}
+
+}
+
+//
+
+class Projector {
+
+	constructor() {
+
+		let _object, _objectCount, _objectPoolLength = 0,
+			_vertex, _vertexCount, _vertexPoolLength = 0,
+			_face, _faceCount, _facePoolLength = 0,
+			_line, _lineCount, _linePoolLength = 0,
+			_sprite, _spriteCount, _spritePoolLength = 0,
+			_modelMatrix;
+
+		const
+
+			_renderData = { objects: [], lights: [], elements: [] },
+
+			_vector3 = new Vector3(),
+			_vector4 = new Vector4(),
+
+			_clipBox = new Box3( new Vector3( - 1, - 1, - 1 ), new Vector3( 1, 1, 1 ) ),
+			_boundingBox = new Box3(),
+			_points3 = new Array( 3 ),
+
+			_viewMatrix = new Matrix4(),
+			_viewProjectionMatrix = new Matrix4(),
+
+			_modelViewProjectionMatrix = new Matrix4(),
+
+			_frustum = new Frustum(),
+
+			_objectPool = [], _vertexPool = [], _facePool = [], _linePool = [], _spritePool = [];
+
+		//
+
+		function RenderList() {
+
+			const normals = [];
+			const colors = [];
+			const uvs = [];
+
+			let object = null;
+
+			const normalMatrix = new Matrix3();
+
+			function setObject( value ) {
+
+				object = value;
+
+				normalMatrix.getNormalMatrix( object.matrixWorld );
+
+				normals.length = 0;
+				colors.length = 0;
+				uvs.length = 0;
+
+			}
+
+			function projectVertex( vertex ) {
+
+				const position = vertex.position;
+				const positionWorld = vertex.positionWorld;
+				const positionScreen = vertex.positionScreen;
+
+				positionWorld.copy( position ).applyMatrix4( _modelMatrix );
+				positionScreen.copy( positionWorld ).applyMatrix4( _viewProjectionMatrix );
+
+				const invW = 1 / positionScreen.w;
+
+				positionScreen.x *= invW;
+				positionScreen.y *= invW;
+				positionScreen.z *= invW;
+
+				vertex.visible = positionScreen.x >= - 1 && positionScreen.x <= 1 &&
+						 positionScreen.y >= - 1 && positionScreen.y <= 1 &&
+						 positionScreen.z >= - 1 && positionScreen.z <= 1;
+
+			}
+
+			function pushVertex( x, y, z ) {
+
+				_vertex = getNextVertexInPool();
+				_vertex.position.set( x, y, z );
+
+				projectVertex( _vertex );
+
+			}
+
+			function pushNormal( x, y, z ) {
+
+				normals.push( x, y, z );
+
+			}
+
+			function pushColor( r, g, b ) {
+
+				colors.push( r, g, b );
+
+			}
+
+			function pushUv( x, y ) {
+
+				uvs.push( x, y );
+
+			}
+
+			function checkTriangleVisibility( v1, v2, v3 ) {
+
+				if ( v1.visible === true || v2.visible === true || v3.visible === true ) return true;
+
+				_points3[ 0 ] = v1.positionScreen;
+				_points3[ 1 ] = v2.positionScreen;
+				_points3[ 2 ] = v3.positionScreen;
+
+				return _clipBox.intersectsBox( _boundingBox.setFromPoints( _points3 ) );
+
+			}
+
+			function checkBackfaceCulling( v1, v2, v3 ) {
+
+				return ( ( v3.positionScreen.x - v1.positionScreen.x ) *
+					    ( v2.positionScreen.y - v1.positionScreen.y ) -
+					    ( v3.positionScreen.y - v1.positionScreen.y ) *
+					    ( v2.positionScreen.x - v1.positionScreen.x ) ) < 0;
+
+			}
+
+			function pushLine( a, b ) {
+
+				const v1 = _vertexPool[ a ];
+				const v2 = _vertexPool[ b ];
+
+				// Clip
+
+				v1.positionScreen.copy( v1.position ).applyMatrix4( _modelViewProjectionMatrix );
+				v2.positionScreen.copy( v2.position ).applyMatrix4( _modelViewProjectionMatrix );
+
+				if ( clipLine( v1.positionScreen, v2.positionScreen ) === true ) {
+
+					// Perform the perspective divide
+					v1.positionScreen.multiplyScalar( 1 / v1.positionScreen.w );
+					v2.positionScreen.multiplyScalar( 1 / v2.positionScreen.w );
+
+					_line = getNextLineInPool();
+					_line.id = object.id;
+					_line.v1.copy( v1 );
+					_line.v2.copy( v2 );
+					_line.z = Math.max( v1.positionScreen.z, v2.positionScreen.z );
+					_line.renderOrder = object.renderOrder;
+
+					_line.material = object.material;
+
+					if ( object.material.vertexColors ) {
+
+						_line.vertexColors[ 0 ].fromArray( colors, a * 3 );
+						_line.vertexColors[ 1 ].fromArray( colors, b * 3 );
+
+					}
+
+					_renderData.elements.push( _line );
+
+				}
+
+			}
+
+			function pushTriangle( a, b, c, material ) {
+
+				const v1 = _vertexPool[ a ];
+				const v2 = _vertexPool[ b ];
+				const v3 = _vertexPool[ c ];
+
+				if ( checkTriangleVisibility( v1, v2, v3 ) === false ) return;
+
+				if ( material.side === DoubleSide || checkBackfaceCulling( v1, v2, v3 ) === true ) {
+
+					_face = getNextFaceInPool();
+
+					_face.id = object.id;
+					_face.v1.copy( v1 );
+					_face.v2.copy( v2 );
+					_face.v3.copy( v3 );
+					_face.z = ( v1.positionScreen.z + v2.positionScreen.z + v3.positionScreen.z ) / 3;
+					_face.renderOrder = object.renderOrder;
+
+					// face normal
+					_vector3.subVectors( v3.position, v2.position );
+					_vector4.subVectors( v1.position, v2.position );
+					_vector3.cross( _vector4 );
+					_face.normalModel.copy( _vector3 );
+					_face.normalModel.applyMatrix3( normalMatrix ).normalize();
+
+					for ( let i = 0; i < 3; i ++ ) {
+
+						const normal = _face.vertexNormalsModel[ i ];
+						normal.fromArray( normals, arguments[ i ] * 3 );
+						normal.applyMatrix3( normalMatrix ).normalize();
+
+						const uv = _face.uvs[ i ];
+						uv.fromArray( uvs, arguments[ i ] * 2 );
+
+					}
+
+					_face.vertexNormalsLength = 3;
+
+					_face.material = material;
+
+					if ( material.vertexColors ) {
+
+						_face.color.fromArray( colors, a * 3 );
+
+					}
+
+					_renderData.elements.push( _face );
+
+				}
+
+			}
+
+			return {
+				setObject: setObject,
+				projectVertex: projectVertex,
+				checkTriangleVisibility: checkTriangleVisibility,
+				checkBackfaceCulling: checkBackfaceCulling,
+				pushVertex: pushVertex,
+				pushNormal: pushNormal,
+				pushColor: pushColor,
+				pushUv: pushUv,
+				pushLine: pushLine,
+				pushTriangle: pushTriangle
+			};
+
+		}
+
+		const renderList = new RenderList();
+
+		function projectObject( object ) {
+
+			if ( object.visible === false ) return;
+
+			if ( object.isLight ) {
+
+				_renderData.lights.push( object );
+
+			} else if ( object.isMesh || object.isLine || object.isPoints ) {
+
+				if ( object.material.visible === false ) return;
+				if ( object.frustumCulled === true && _frustum.intersectsObject( object ) === false ) return;
+
+				addObject( object );
+
+			} else if ( object.isSprite ) {
+
+				if ( object.material.visible === false ) return;
+				if ( object.frustumCulled === true && _frustum.intersectsSprite( object ) === false ) return;
+
+				addObject( object );
+
+			}
+
+			const children = object.children;
+
+			for ( let i = 0, l = children.length; i < l; i ++ ) {
+
+				projectObject( children[ i ] );
+
+			}
+
+		}
+
+		function addObject( object ) {
+
+			_object = getNextObjectInPool();
+			_object.id = object.id;
+			_object.object = object;
+
+			_vector3.setFromMatrixPosition( object.matrixWorld );
+			_vector3.applyMatrix4( _viewProjectionMatrix );
+			_object.z = _vector3.z;
+			_object.renderOrder = object.renderOrder;
+
+			_renderData.objects.push( _object );
+
+		}
+
+		this.projectScene = function ( scene, camera, sortObjects, sortElements ) {
+
+			_faceCount = 0;
+			_lineCount = 0;
+			_spriteCount = 0;
+
+			_renderData.elements.length = 0;
+
+			if ( scene.matrixWorldAutoUpdate === true ) scene.updateMatrixWorld();
+			if ( camera.parent === null && camera.matrixWorldAutoUpdate === true ) camera.updateMatrixWorld();
+
+			_viewMatrix.copy( camera.matrixWorldInverse );
+			_viewProjectionMatrix.multiplyMatrices( camera.projectionMatrix, _viewMatrix );
+
+			_frustum.setFromProjectionMatrix( _viewProjectionMatrix );
+
+			//
+
+			_objectCount = 0;
+
+			_renderData.objects.length = 0;
+			_renderData.lights.length = 0;
+
+			projectObject( scene );
+
+			if ( sortObjects === true ) {
+
+				_renderData.objects.sort( painterSort );
+
+			}
+
+			//
+
+			const objects = _renderData.objects;
+
+			for ( let o = 0, ol = objects.length; o < ol; o ++ ) {
+
+				const object = objects[ o ].object;
+				const geometry = object.geometry;
+
+				renderList.setObject( object );
+
+				_modelMatrix = object.matrixWorld;
+
+				_vertexCount = 0;
+
+				if ( object.isMesh ) {
+
+					let material = object.material;
+
+					const isMultiMaterial = Array.isArray( material );
+
+					const attributes = geometry.attributes;
+					const groups = geometry.groups;
+
+					if ( attributes.position === undefined ) continue;
+
+					const positions = attributes.position.array;
+
+					for ( let i = 0, l = positions.length; i < l; i += 3 ) {
+
+						let x = positions[ i ];
+						let y = positions[ i + 1 ];
+						let z = positions[ i + 2 ];
+
+						const morphTargets = geometry.morphAttributes.position;
+
+						if ( morphTargets !== undefined ) {
+
+							const morphTargetsRelative = geometry.morphTargetsRelative;
+							const morphInfluences = object.morphTargetInfluences;
+
+							for ( let t = 0, tl = morphTargets.length; t < tl; t ++ ) {
+
+								const influence = morphInfluences[ t ];
+
+								if ( influence === 0 ) continue;
+
+								const target = morphTargets[ t ];
+
+								if ( morphTargetsRelative ) {
+
+									x += target.getX( i / 3 ) * influence;
+									y += target.getY( i / 3 ) * influence;
+									z += target.getZ( i / 3 ) * influence;
+
+								} else {
+
+									x += ( target.getX( i / 3 ) - positions[ i ] ) * influence;
+									y += ( target.getY( i / 3 ) - positions[ i + 1 ] ) * influence;
+									z += ( target.getZ( i / 3 ) - positions[ i + 2 ] ) * influence;
+
+								}
+
+							}
+
+						}
+
+						renderList.pushVertex( x, y, z );
+
+					}
+
+					if ( attributes.normal !== undefined ) {
+
+						const normals = attributes.normal.array;
+
+						for ( let i = 0, l = normals.length; i < l; i += 3 ) {
+
+							renderList.pushNormal( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] );
+
+						}
+
+					}
+
+					if ( attributes.color !== undefined ) {
+
+						const colors = attributes.color.array;
+
+						for ( let i = 0, l = colors.length; i < l; i += 3 ) {
+
+							renderList.pushColor( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] );
+
+						}
+
+					}
+
+					if ( attributes.uv !== undefined ) {
+
+						const uvs = attributes.uv.array;
+
+						for ( let i = 0, l = uvs.length; i < l; i += 2 ) {
+
+							renderList.pushUv( uvs[ i ], uvs[ i + 1 ] );
+
+						}
+
+					}
+
+					if ( geometry.index !== null ) {
+
+						const indices = geometry.index.array;
+
+						if ( groups.length > 0 ) {
+
+							for ( let g = 0; g < groups.length; g ++ ) {
+
+								const group = groups[ g ];
+
+								material = isMultiMaterial === true
+									 ? object.material[ group.materialIndex ]
+									 : object.material;
+
+								if ( material === undefined ) continue;
+
+								for ( let i = group.start, l = group.start + group.count; i < l; i += 3 ) {
+
+									renderList.pushTriangle( indices[ i ], indices[ i + 1 ], indices[ i + 2 ], material );
+
+								}
+
+							}
+
+						} else {
+
+							for ( let i = 0, l = indices.length; i < l; i += 3 ) {
+
+								renderList.pushTriangle( indices[ i ], indices[ i + 1 ], indices[ i + 2 ], material );
+
+							}
+
+						}
+
+					} else {
+
+						if ( groups.length > 0 ) {
+
+							for ( let g = 0; g < groups.length; g ++ ) {
+
+								const group = groups[ g ];
+
+								material = isMultiMaterial === true
+									 ? object.material[ group.materialIndex ]
+									 : object.material;
+
+								if ( material === undefined ) continue;
+
+								for ( let i = group.start, l = group.start + group.count; i < l; i += 3 ) {
+
+									renderList.pushTriangle( i, i + 1, i + 2, material );
+
+								}
+
+							}
+
+						} else {
+
+							for ( let i = 0, l = positions.length / 3; i < l; i += 3 ) {
+
+								renderList.pushTriangle( i, i + 1, i + 2, material );
+
+							}
+
+						}
+
+					}
+
+				} else if ( object.isLine ) {
+
+					_modelViewProjectionMatrix.multiplyMatrices( _viewProjectionMatrix, _modelMatrix );
+
+					const attributes = geometry.attributes;
+
+					if ( attributes.position !== undefined ) {
+
+						const positions = attributes.position.array;
+
+						for ( let i = 0, l = positions.length; i < l; i += 3 ) {
+
+							renderList.pushVertex( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] );
+
+						}
+
+						if ( attributes.color !== undefined ) {
+
+							const colors = attributes.color.array;
+
+							for ( let i = 0, l = colors.length; i < l; i += 3 ) {
+
+								renderList.pushColor( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] );
+
+							}
+
+						}
+
+						if ( geometry.index !== null ) {
+
+							const indices = geometry.index.array;
+
+							for ( let i = 0, l = indices.length; i < l; i += 2 ) {
+
+								renderList.pushLine( indices[ i ], indices[ i + 1 ] );
+
+							}
+
+						} else {
+
+							const step = object.isLineSegments ? 2 : 1;
+
+							for ( let i = 0, l = ( positions.length / 3 ) - 1; i < l; i += step ) {
+
+								renderList.pushLine( i, i + 1 );
+
+							}
+
+						}
+
+					}
+
+				} else if ( object.isPoints ) {
+
+					_modelViewProjectionMatrix.multiplyMatrices( _viewProjectionMatrix, _modelMatrix );
+
+					const attributes = geometry.attributes;
+
+					if ( attributes.position !== undefined ) {
+
+						const positions = attributes.position.array;
+
+						for ( let i = 0, l = positions.length; i < l; i += 3 ) {
+
+							_vector4.set( positions[ i ], positions[ i + 1 ], positions[ i + 2 ], 1 );
+							_vector4.applyMatrix4( _modelViewProjectionMatrix );
+
+							pushPoint( _vector4, object, camera );
+
+						}
+
+					}
+
+				} else if ( object.isSprite ) {
+
+					object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
+					_vector4.set( _modelMatrix.elements[ 12 ], _modelMatrix.elements[ 13 ], _modelMatrix.elements[ 14 ], 1 );
+					_vector4.applyMatrix4( _viewProjectionMatrix );
+
+					pushPoint( _vector4, object, camera );
+
+				}
+
+			}
+
+			if ( sortElements === true ) {
+
+				_renderData.elements.sort( painterSort );
+
+			}
+
+			return _renderData;
+
+		};
+
+		function pushPoint( _vector4, object, camera ) {
+
+			const invW = 1 / _vector4.w;
+
+			_vector4.z *= invW;
+
+			if ( _vector4.z >= - 1 && _vector4.z <= 1 ) {
+
+				_sprite = getNextSpriteInPool();
+				_sprite.id = object.id;
+				_sprite.x = _vector4.x * invW;
+				_sprite.y = _vector4.y * invW;
+				_sprite.z = _vector4.z;
+				_sprite.renderOrder = object.renderOrder;
+				_sprite.object = object;
+
+				_sprite.rotation = object.rotation;
+
+				_sprite.scale.x = object.scale.x * Math.abs( _sprite.x - ( _vector4.x + camera.projectionMatrix.elements[ 0 ] ) / ( _vector4.w + camera.projectionMatrix.elements[ 12 ] ) );
+				_sprite.scale.y = object.scale.y * Math.abs( _sprite.y - ( _vector4.y + camera.projectionMatrix.elements[ 5 ] ) / ( _vector4.w + camera.projectionMatrix.elements[ 13 ] ) );
+
+				_sprite.material = object.material;
+
+				_renderData.elements.push( _sprite );
+
+			}
+
+		}
+
+		// Pools
+
+		function getNextObjectInPool() {
+
+			if ( _objectCount === _objectPoolLength ) {
+
+				const object = new RenderableObject();
+				_objectPool.push( object );
+				_objectPoolLength ++;
+				_objectCount ++;
+				return object;
+
+			}
+
+			return _objectPool[ _objectCount ++ ];
+
+		}
+
+		function getNextVertexInPool() {
+
+			if ( _vertexCount === _vertexPoolLength ) {
+
+				const vertex = new RenderableVertex();
+				_vertexPool.push( vertex );
+				_vertexPoolLength ++;
+				_vertexCount ++;
+				return vertex;
+
+			}
+
+			return _vertexPool[ _vertexCount ++ ];
+
+		}
+
+		function getNextFaceInPool() {
+
+			if ( _faceCount === _facePoolLength ) {
+
+				const face = new RenderableFace();
+				_facePool.push( face );
+				_facePoolLength ++;
+				_faceCount ++;
+				return face;
+
+			}
+
+			return _facePool[ _faceCount ++ ];
+
+
+		}
+
+		function getNextLineInPool() {
+
+			if ( _lineCount === _linePoolLength ) {
+
+				const line = new RenderableLine();
+				_linePool.push( line );
+				_linePoolLength ++;
+				_lineCount ++;
+				return line;
+
+			}
+
+			return _linePool[ _lineCount ++ ];
+
+		}
+
+		function getNextSpriteInPool() {
+
+			if ( _spriteCount === _spritePoolLength ) {
+
+				const sprite = new RenderableSprite();
+				_spritePool.push( sprite );
+				_spritePoolLength ++;
+				_spriteCount ++;
+				return sprite;
+
+			}
+
+			return _spritePool[ _spriteCount ++ ];
+
+		}
+
+		//
+
+		function painterSort( a, b ) {
+
+			if ( a.renderOrder !== b.renderOrder ) {
+
+				return a.renderOrder - b.renderOrder;
+
+			} else if ( a.z !== b.z ) {
+
+				return b.z - a.z;
+
+			} else if ( a.id !== b.id ) {
+
+				return a.id - b.id;
+
+			} else {
+
+				return 0;
+
+			}
+
+		}
+
+		function clipLine( s1, s2 ) {
+
+			let alpha1 = 0, alpha2 = 1;
+
+			// Calculate the boundary coordinate of each vertex for the near and far clip planes,
+			// Z = -1 and Z = +1, respectively.
+
+			const bc1near = s1.z + s1.w,
+				bc2near = s2.z + s2.w,
+				bc1far = - s1.z + s1.w,
+				bc2far = - s2.z + s2.w;
+
+			if ( bc1near >= 0 && bc2near >= 0 && bc1far >= 0 && bc2far >= 0 ) {
+
+				// Both vertices lie entirely within all clip planes.
+				return true;
+
+			} else if ( ( bc1near < 0 && bc2near < 0 ) || ( bc1far < 0 && bc2far < 0 ) ) {
+
+				// Both vertices lie entirely outside one of the clip planes.
+				return false;
+
+			} else {
+
+				// The line segment spans at least one clip plane.
+
+				if ( bc1near < 0 ) {
+
+					// v1 lies outside the near plane, v2 inside
+					alpha1 = Math.max( alpha1, bc1near / ( bc1near - bc2near ) );
+
+				} else if ( bc2near < 0 ) {
+
+					// v2 lies outside the near plane, v1 inside
+					alpha2 = Math.min( alpha2, bc1near / ( bc1near - bc2near ) );
+
+				}
+
+				if ( bc1far < 0 ) {
+
+					// v1 lies outside the far plane, v2 inside
+					alpha1 = Math.max( alpha1, bc1far / ( bc1far - bc2far ) );
+
+				} else if ( bc2far < 0 ) {
+
+					// v2 lies outside the far plane, v2 inside
+					alpha2 = Math.min( alpha2, bc1far / ( bc1far - bc2far ) );
+
+				}
+
+				if ( alpha2 < alpha1 ) {
+
+					// The line segment spans two boundaries, but is outside both of them.
+					// (This can't happen when we're only clipping against just near/far but good
+					//  to leave the check here for future usage if other clip planes are added.)
+					return false;
+
+				} else {
+
+					// Update the s1 and s2 vertices to match the clipped line segment.
+					s1.lerp( s2, alpha1 );
+					s2.lerp( s1, 1 - alpha2 );
+
+					return true;
+
+				}
+
+			}
+
+		}
+
+	}
+
+}
+
+export { RenderableObject, RenderableFace, RenderableVertex, RenderableLine, RenderableSprite, Projector };

site/game/node_modules/three/examples/jsm/renderers/SVGRenderer.js

@@ -0,0 +1,556 @@
+import {
+	Box2,
+	Camera,
+	Color,
+	Matrix3,
+	Matrix4,
+	Object3D,
+	SRGBColorSpace,
+	Vector3
+} from 'three';
+import { Projector } from '../renderers/Projector.js';
+import { RenderableFace } from '../renderers/Projector.js';
+import { RenderableLine } from '../renderers/Projector.js';
+import { RenderableSprite } from '../renderers/Projector.js';
+
+class SVGObject extends Object3D {
+
+	constructor( node ) {
+
+		super();
+
+		this.isSVGObject = true;
+
+		this.node = node;
+
+	}
+
+}
+
+class SVGRenderer {
+
+	constructor() {
+
+		let _renderData, _elements, _lights,
+			_svgWidth, _svgHeight, _svgWidthHalf, _svgHeightHalf,
+
+			_v1, _v2, _v3,
+
+			_svgNode,
+			_pathCount = 0,
+
+			_precision = null,
+			_quality = 1,
+
+			_currentPath, _currentStyle;
+
+		const _this = this,
+			_clipBox = new Box2(),
+			_elemBox = new Box2(),
+
+			_color = new Color(),
+			_diffuseColor = new Color(),
+			_ambientLight = new Color(),
+			_directionalLights = new Color(),
+			_pointLights = new Color(),
+			_clearColor = new Color(),
+
+			_vector3 = new Vector3(), // Needed for PointLight
+			_centroid = new Vector3(),
+			_normal = new Vector3(),
+			_normalViewMatrix = new Matrix3(),
+
+			_viewMatrix = new Matrix4(),
+			_viewProjectionMatrix = new Matrix4(),
+
+			_svgPathPool = [],
+
+			_projector = new Projector(),
+			_svg = document.createElementNS( 'http://www.w3.org/2000/svg', 'svg' );
+
+		this.domElement = _svg;
+
+		this.autoClear = true;
+		this.sortObjects = true;
+		this.sortElements = true;
+
+		this.overdraw = 0.5;
+
+		this.outputColorSpace = SRGBColorSpace;
+
+		this.info = {
+
+			render: {
+
+				vertices: 0,
+				faces: 0
+
+			}
+
+		};
+
+		this.setQuality = function ( quality ) {
+
+			switch ( quality ) {
+
+				case 'high': _quality = 1; break;
+				case 'low': _quality = 0; break;
+
+			}
+
+		};
+
+		this.setClearColor = function ( color ) {
+
+			_clearColor.set( color );
+
+		};
+
+		this.setPixelRatio = function () {};
+
+		this.setSize = function ( width, height ) {
+
+			_svgWidth = width; _svgHeight = height;
+			_svgWidthHalf = _svgWidth / 2; _svgHeightHalf = _svgHeight / 2;
+
+			_svg.setAttribute( 'viewBox', ( - _svgWidthHalf ) + ' ' + ( - _svgHeightHalf ) + ' ' + _svgWidth + ' ' + _svgHeight );
+			_svg.setAttribute( 'width', _svgWidth );
+			_svg.setAttribute( 'height', _svgHeight );
+
+			_clipBox.min.set( - _svgWidthHalf, - _svgHeightHalf );
+			_clipBox.max.set( _svgWidthHalf, _svgHeightHalf );
+
+		};
+
+		this.getSize = function () {
+
+			return {
+				width: _svgWidth,
+				height: _svgHeight
+			};
+
+		};
+
+		this.setPrecision = function ( precision ) {
+
+			_precision = precision;
+
+		};
+
+		function removeChildNodes() {
+
+			_pathCount = 0;
+
+			while ( _svg.childNodes.length > 0 ) {
+
+				_svg.removeChild( _svg.childNodes[ 0 ] );
+
+			}
+
+		}
+
+		function convert( c ) {
+
+			return _precision !== null ? c.toFixed( _precision ) : c;
+
+		}
+
+		this.clear = function () {
+
+			removeChildNodes();
+			_svg.style.backgroundColor = _clearColor.getStyle( _this.outputColorSpace );
+
+		};
+
+		this.render = function ( scene, camera ) {
+
+			if ( camera instanceof Camera === false ) {
+
+				console.error( 'THREE.SVGRenderer.render: camera is not an instance of Camera.' );
+				return;
+
+			}
+
+			const background = scene.background;
+
+			if ( background && background.isColor ) {
+
+				removeChildNodes();
+				_svg.style.backgroundColor = background.getStyle( _this.outputColorSpace );
+
+			} else if ( this.autoClear === true ) {
+
+				this.clear();
+
+			}
+
+			_this.info.render.vertices = 0;
+			_this.info.render.faces = 0;
+
+			_viewMatrix.copy( camera.matrixWorldInverse );
+			_viewProjectionMatrix.multiplyMatrices( camera.projectionMatrix, _viewMatrix );
+
+			_renderData = _projector.projectScene( scene, camera, this.sortObjects, this.sortElements );
+			_elements = _renderData.elements;
+			_lights = _renderData.lights;
+
+			_normalViewMatrix.getNormalMatrix( camera.matrixWorldInverse );
+
+			calculateLights( _lights );
+
+			 // reset accumulated path
+
+			_currentPath = '';
+			_currentStyle = '';
+
+			for ( let e = 0, el = _elements.length; e < el; e ++ ) {
+
+				const element = _elements[ e ];
+				const material = element.material;
+
+				if ( material === undefined || material.opacity === 0 ) continue;
+
+				_elemBox.makeEmpty();
+
+				if ( element instanceof RenderableSprite ) {
+
+					_v1 = element;
+					_v1.x *= _svgWidthHalf; _v1.y *= - _svgHeightHalf;
+
+					renderSprite( _v1, element, material );
+
+				} else if ( element instanceof RenderableLine ) {
+
+					_v1 = element.v1; _v2 = element.v2;
+
+					_v1.positionScreen.x *= _svgWidthHalf; _v1.positionScreen.y *= - _svgHeightHalf;
+					_v2.positionScreen.x *= _svgWidthHalf; _v2.positionScreen.y *= - _svgHeightHalf;
+
+					_elemBox.setFromPoints( [ _v1.positionScreen, _v2.positionScreen ] );
+
+					if ( _clipBox.intersectsBox( _elemBox ) === true ) {
+
+						renderLine( _v1, _v2, material );
+
+					}
+
+				} else if ( element instanceof RenderableFace ) {
+
+					_v1 = element.v1; _v2 = element.v2; _v3 = element.v3;
+
+					if ( _v1.positionScreen.z < - 1 || _v1.positionScreen.z > 1 ) continue;
+					if ( _v2.positionScreen.z < - 1 || _v2.positionScreen.z > 1 ) continue;
+					if ( _v3.positionScreen.z < - 1 || _v3.positionScreen.z > 1 ) continue;
+
+					_v1.positionScreen.x *= _svgWidthHalf; _v1.positionScreen.y *= - _svgHeightHalf;
+					_v2.positionScreen.x *= _svgWidthHalf; _v2.positionScreen.y *= - _svgHeightHalf;
+					_v3.positionScreen.x *= _svgWidthHalf; _v3.positionScreen.y *= - _svgHeightHalf;
+
+					if ( this.overdraw > 0 ) {
+
+						expand( _v1.positionScreen, _v2.positionScreen, this.overdraw );
+						expand( _v2.positionScreen, _v3.positionScreen, this.overdraw );
+						expand( _v3.positionScreen, _v1.positionScreen, this.overdraw );
+
+					}
+
+					_elemBox.setFromPoints( [
+						_v1.positionScreen,
+						_v2.positionScreen,
+						_v3.positionScreen
+					] );
+
+					if ( _clipBox.intersectsBox( _elemBox ) === true ) {
+
+						renderFace3( _v1, _v2, _v3, element, material );
+
+					}
+
+				}
+
+			}
+
+			flushPath(); // just to flush last svg:path
+
+			scene.traverseVisible( function ( object ) {
+
+				 if ( object.isSVGObject ) {
+
+					_vector3.setFromMatrixPosition( object.matrixWorld );
+					_vector3.applyMatrix4( _viewProjectionMatrix );
+
+					if ( _vector3.z < - 1 || _vector3.z > 1 ) return;
+
+					const x = _vector3.x * _svgWidthHalf;
+					const y = - _vector3.y * _svgHeightHalf;
+
+					const node = object.node;
+					node.setAttribute( 'transform', 'translate(' + x + ',' + y + ')' );
+
+					_svg.appendChild( node );
+
+				}
+
+			} );
+
+		};
+
+		function calculateLights( lights ) {
+
+			_ambientLight.setRGB( 0, 0, 0 );
+			_directionalLights.setRGB( 0, 0, 0 );
+			_pointLights.setRGB( 0, 0, 0 );
+
+			for ( let l = 0, ll = lights.length; l < ll; l ++ ) {
+
+				const light = lights[ l ];
+				const lightColor = light.color;
+
+				if ( light.isAmbientLight ) {
+
+					_ambientLight.r += lightColor.r;
+					_ambientLight.g += lightColor.g;
+					_ambientLight.b += lightColor.b;
+
+				} else if ( light.isDirectionalLight ) {
+
+					_directionalLights.r += lightColor.r;
+					_directionalLights.g += lightColor.g;
+					_directionalLights.b += lightColor.b;
+
+				} else if ( light.isPointLight ) {
+
+					_pointLights.r += lightColor.r;
+					_pointLights.g += lightColor.g;
+					_pointLights.b += lightColor.b;
+
+				}
+
+			}
+
+		}
+
+		function calculateLight( lights, position, normal, color ) {
+
+			for ( let l = 0, ll = lights.length; l < ll; l ++ ) {
+
+				const light = lights[ l ];
+				const lightColor = light.color;
+
+				if ( light.isDirectionalLight ) {
+
+					const lightPosition = _vector3.setFromMatrixPosition( light.matrixWorld ).normalize();
+
+					let amount = normal.dot( lightPosition );
+
+					if ( amount <= 0 ) continue;
+
+					amount *= light.intensity;
+
+					color.r += lightColor.r * amount;
+					color.g += lightColor.g * amount;
+					color.b += lightColor.b * amount;
+
+				} else if ( light.isPointLight ) {
+
+					const lightPosition = _vector3.setFromMatrixPosition( light.matrixWorld );
+
+					let amount = normal.dot( _vector3.subVectors( lightPosition, position ).normalize() );
+
+					if ( amount <= 0 ) continue;
+
+					amount *= light.distance == 0 ? 1 : 1 - Math.min( position.distanceTo( lightPosition ) / light.distance, 1 );
+
+					if ( amount == 0 ) continue;
+
+					amount *= light.intensity;
+
+					color.r += lightColor.r * amount;
+					color.g += lightColor.g * amount;
+					color.b += lightColor.b * amount;
+
+				}
+
+			}
+
+		}
+
+		function renderSprite( v1, element, material ) {
+
+			let scaleX = element.scale.x * _svgWidthHalf;
+			let scaleY = element.scale.y * _svgHeightHalf;
+
+			if ( material.isPointsMaterial ) {
+
+				scaleX *= material.size;
+				scaleY *= material.size;
+
+			}
+
+			const path = 'M' + convert( v1.x - scaleX * 0.5 ) + ',' + convert( v1.y - scaleY * 0.5 ) + 'h' + convert( scaleX ) + 'v' + convert( scaleY ) + 'h' + convert( - scaleX ) + 'z';
+			let style = '';
+
+			if ( material.isSpriteMaterial || material.isPointsMaterial ) {
+
+				style = 'fill:' + material.color.getStyle( _this.outputColorSpace ) + ';fill-opacity:' + material.opacity;
+
+			}
+
+			addPath( style, path );
+
+		}
+
+		function renderLine( v1, v2, material ) {
+
+			const path = 'M' + convert( v1.positionScreen.x ) + ',' + convert( v1.positionScreen.y ) + 'L' + convert( v2.positionScreen.x ) + ',' + convert( v2.positionScreen.y );
+
+			if ( material.isLineBasicMaterial ) {
+
+				let style = 'fill:none;stroke:' + material.color.getStyle( _this.outputColorSpace ) + ';stroke-opacity:' + material.opacity + ';stroke-width:' + material.linewidth + ';stroke-linecap:' + material.linecap;
+
+				if ( material.isLineDashedMaterial ) {
+
+					style = style + ';stroke-dasharray:' + material.dashSize + ',' + material.gapSize;
+
+				}
+
+				addPath( style, path );
+
+			}
+
+		}
+
+		function renderFace3( v1, v2, v3, element, material ) {
+
+			_this.info.render.vertices += 3;
+			_this.info.render.faces ++;
+
+			const path = 'M' + convert( v1.positionScreen.x ) + ',' + convert( v1.positionScreen.y ) + 'L' + convert( v2.positionScreen.x ) + ',' + convert( v2.positionScreen.y ) + 'L' + convert( v3.positionScreen.x ) + ',' + convert( v3.positionScreen.y ) + 'z';
+			let style = '';
+
+			if ( material.isMeshBasicMaterial ) {
+
+				_color.copy( material.color );
+
+				if ( material.vertexColors ) {
+
+					_color.multiply( element.color );
+
+				}
+
+			} else if ( material.isMeshLambertMaterial || material.isMeshPhongMaterial || material.isMeshStandardMaterial ) {
+
+				_diffuseColor.copy( material.color );
+
+				if ( material.vertexColors ) {
+
+					_diffuseColor.multiply( element.color );
+
+				}
+
+				_color.copy( _ambientLight );
+
+				_centroid.copy( v1.positionWorld ).add( v2.positionWorld ).add( v3.positionWorld ).divideScalar( 3 );
+
+				calculateLight( _lights, _centroid, element.normalModel, _color );
+
+				_color.multiply( _diffuseColor ).add( material.emissive );
+
+			} else if ( material.isMeshNormalMaterial ) {
+
+				_normal.copy( element.normalModel ).applyMatrix3( _normalViewMatrix ).normalize();
+
+				_color.setRGB( _normal.x, _normal.y, _normal.z ).multiplyScalar( 0.5 ).addScalar( 0.5 );
+
+			}
+
+			if ( material.wireframe ) {
+
+				style = 'fill:none;stroke:' + _color.getStyle( _this.outputColorSpace ) + ';stroke-opacity:' + material.opacity + ';stroke-width:' + material.wireframeLinewidth + ';stroke-linecap:' + material.wireframeLinecap + ';stroke-linejoin:' + material.wireframeLinejoin;
+
+			} else {
+
+				style = 'fill:' + _color.getStyle( _this.outputColorSpace ) + ';fill-opacity:' + material.opacity;
+
+			}
+
+			addPath( style, path );
+
+		}
+
+		// Hide anti-alias gaps
+
+		function expand( v1, v2, pixels ) {
+
+			let x = v2.x - v1.x, y = v2.y - v1.y;
+			const det = x * x + y * y;
+
+			if ( det === 0 ) return;
+
+			const idet = pixels / Math.sqrt( det );
+
+			x *= idet; y *= idet;
+
+			v2.x += x; v2.y += y;
+			v1.x -= x; v1.y -= y;
+
+		}
+
+		function addPath( style, path ) {
+
+			if ( _currentStyle === style ) {
+
+				_currentPath += path;
+
+			} else {
+
+				flushPath();
+
+				_currentStyle = style;
+				_currentPath = path;
+
+			}
+
+		}
+
+		function flushPath() {
+
+			if ( _currentPath ) {
+
+				_svgNode = getPathNode( _pathCount ++ );
+				_svgNode.setAttribute( 'd', _currentPath );
+				_svgNode.setAttribute( 'style', _currentStyle );
+				_svg.appendChild( _svgNode );
+
+			}
+
+			_currentPath = '';
+			_currentStyle = '';
+
+		}
+
+		function getPathNode( id ) {
+
+			if ( _svgPathPool[ id ] == null ) {
+
+				_svgPathPool[ id ] = document.createElementNS( 'http://www.w3.org/2000/svg', 'path' );
+
+				if ( _quality == 0 ) {
+
+					_svgPathPool[ id ].setAttribute( 'shape-rendering', 'crispEdges' ); //optimizeSpeed
+
+				}
+
+				return _svgPathPool[ id ];
+
+			}
+
+			return _svgPathPool[ id ];
+
+		}
+
+	}
+
+}
+
+export { SVGObject, SVGRenderer };