You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
557 lines
12 KiB
557 lines
12 KiB
6 months ago
|
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 };
|