mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-07-08 11:40:43 +02:00
474 lines
12 KiB
JavaScript
Executable File
474 lines
12 KiB
JavaScript
Executable File
/**
|
|
* @author mrdoob / http://mrdoob.com/
|
|
*/
|
|
|
|
THREE.SVGObject = function ( node ) {
|
|
|
|
THREE.Object3D.call( this );
|
|
|
|
this.node = node;
|
|
|
|
};
|
|
|
|
THREE.SVGObject.prototype = Object.create( THREE.Object3D.prototype );
|
|
THREE.SVGObject.prototype.constructor = THREE.SVGObject;
|
|
|
|
THREE.SVGRenderer = function () {
|
|
|
|
console.log( 'THREE.SVGRenderer', THREE.REVISION );
|
|
|
|
var _this = this,
|
|
_renderData, _elements, _lights,
|
|
_projector = new THREE.Projector(),
|
|
_svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg'),
|
|
_svgWidth, _svgHeight, _svgWidthHalf, _svgHeightHalf,
|
|
|
|
_v1, _v2, _v3, _v4,
|
|
|
|
_clipBox = new THREE.Box2(),
|
|
_elemBox = new THREE.Box2(),
|
|
|
|
_color = new THREE.Color(),
|
|
_diffuseColor = new THREE.Color(),
|
|
_ambientLight = new THREE.Color(),
|
|
_directionalLights = new THREE.Color(),
|
|
_pointLights = new THREE.Color(),
|
|
_clearColor = new THREE.Color(),
|
|
_clearAlpha = 1,
|
|
|
|
_w, // z-buffer to w-buffer
|
|
_vector3 = new THREE.Vector3(), // Needed for PointLight
|
|
_centroid = new THREE.Vector3(),
|
|
_normal = new THREE.Vector3(),
|
|
_normalViewMatrix = new THREE.Matrix3(),
|
|
|
|
_viewMatrix = new THREE.Matrix4(),
|
|
_viewProjectionMatrix = new THREE.Matrix4(),
|
|
|
|
_svgPathPool = [], _svgLinePool = [], _svgRectPool = [],
|
|
_svgNode, _pathCount = 0, _lineCount = 0, _rectCount = 0,
|
|
_quality = 1;
|
|
|
|
this.domElement = _svg;
|
|
|
|
this.autoClear = true;
|
|
this.sortObjects = true;
|
|
this.sortElements = true;
|
|
|
|
this.info = {
|
|
|
|
render: {
|
|
|
|
vertices: 0,
|
|
faces: 0
|
|
|
|
}
|
|
|
|
}
|
|
|
|
this.setQuality = function( quality ) {
|
|
|
|
switch (quality) {
|
|
|
|
case "high": _quality = 1; break;
|
|
case "low": _quality = 0; break;
|
|
|
|
}
|
|
|
|
};
|
|
|
|
// WebGLRenderer compatibility
|
|
|
|
this.supportsVertexTextures = function () {};
|
|
this.setFaceCulling = function () {};
|
|
|
|
this.setClearColor = function ( color, alpha ) {
|
|
|
|
_clearColor.set( color );
|
|
_clearAlpha = alpha !== undefined ? alpha : 1;
|
|
|
|
};
|
|
|
|
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.clear = function () {
|
|
|
|
_pathCount = 0;
|
|
_lineCount = 0;
|
|
_rectCount = 0;
|
|
|
|
while ( _svg.childNodes.length > 0 ) {
|
|
|
|
_svg.removeChild( _svg.childNodes[ 0 ] );
|
|
|
|
}
|
|
|
|
_svg.style.backgroundColor = 'rgba(' + ( ( _clearColor.r * 255 ) | 0 ) + ',' + ( ( _clearColor.g * 255 ) | 0 ) + ',' + ( ( _clearColor.b * 255 ) | 0 ) + ',' + _clearAlpha + ')';
|
|
|
|
};
|
|
|
|
this.render = function ( scene, camera ) {
|
|
|
|
if ( camera instanceof THREE.Camera === false ) {
|
|
|
|
console.error( 'THREE.SVGRenderer.render: camera is not an instance of THREE.Camera.' );
|
|
return;
|
|
|
|
}
|
|
|
|
if ( this.autoClear === true ) this.clear();
|
|
|
|
_this.info.render.vertices = 0;
|
|
_this.info.render.faces = 0;
|
|
|
|
_viewMatrix.copy( camera.matrixWorldInverse.getInverse( camera.matrixWorld ) );
|
|
_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 );
|
|
|
|
for ( var e = 0, el = _elements.length; e < el; e ++ ) {
|
|
|
|
var element = _elements[ e ];
|
|
var material = element.material;
|
|
|
|
if ( material === undefined || material.opacity === 0 ) continue;
|
|
|
|
_elemBox.makeEmpty();
|
|
|
|
if ( element instanceof THREE.RenderableSprite ) {
|
|
|
|
_v1 = element;
|
|
_v1.x *= _svgWidthHalf; _v1.y *= - _svgHeightHalf;
|
|
|
|
renderSprite( _v1, element, material );
|
|
|
|
} else if ( element instanceof THREE.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.isIntersectionBox( _elemBox ) === true ) {
|
|
|
|
renderLine( _v1, _v2, element, material );
|
|
|
|
}
|
|
|
|
} else if ( element instanceof THREE.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;
|
|
|
|
_elemBox.setFromPoints( [
|
|
_v1.positionScreen,
|
|
_v2.positionScreen,
|
|
_v3.positionScreen
|
|
] );
|
|
|
|
if ( _clipBox.isIntersectionBox( _elemBox ) === true ) {
|
|
|
|
renderFace3( _v1, _v2, _v3, element, material );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
scene.traverseVisible( function ( object ) {
|
|
|
|
if ( object instanceof THREE.SVGObject ) {
|
|
|
|
_vector3.setFromMatrixPosition( object.matrixWorld );
|
|
_vector3.applyProjection( _viewProjectionMatrix );
|
|
|
|
var x = _vector3.x * _svgWidthHalf;
|
|
var y = - _vector3.y * _svgHeightHalf;
|
|
|
|
var 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 ( var l = 0, ll = lights.length; l < ll; l ++ ) {
|
|
|
|
var light = lights[ l ];
|
|
var lightColor = light.color;
|
|
|
|
if ( light instanceof THREE.AmbientLight ) {
|
|
|
|
_ambientLight.r += lightColor.r;
|
|
_ambientLight.g += lightColor.g;
|
|
_ambientLight.b += lightColor.b;
|
|
|
|
} else if ( light instanceof THREE.DirectionalLight ) {
|
|
|
|
_directionalLights.r += lightColor.r;
|
|
_directionalLights.g += lightColor.g;
|
|
_directionalLights.b += lightColor.b;
|
|
|
|
} else if ( light instanceof THREE.PointLight ) {
|
|
|
|
_pointLights.r += lightColor.r;
|
|
_pointLights.g += lightColor.g;
|
|
_pointLights.b += lightColor.b;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function calculateLight( lights, position, normal, color ) {
|
|
|
|
for ( var l = 0, ll = lights.length; l < ll; l ++ ) {
|
|
|
|
var light = lights[ l ];
|
|
var lightColor = light.color;
|
|
|
|
if ( light instanceof THREE.DirectionalLight ) {
|
|
|
|
var lightPosition = _vector3.setFromMatrixPosition( light.matrixWorld ).normalize();
|
|
|
|
var 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 instanceof THREE.PointLight ) {
|
|
|
|
var lightPosition = _vector3.setFromMatrixPosition( light.matrixWorld );
|
|
|
|
var 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 ) {
|
|
|
|
var scaleX = element.scale.x * _svgWidthHalf;
|
|
var scaleY = element.scale.y * _svgHeightHalf;
|
|
|
|
_svgNode = getRectNode( _rectCount ++ );
|
|
|
|
_svgNode.setAttribute( 'x', v1.x - ( scaleX * 0.5 ) );
|
|
_svgNode.setAttribute( 'y', v1.y - ( scaleY * 0.5 ) );
|
|
_svgNode.setAttribute( 'width', scaleX );
|
|
_svgNode.setAttribute( 'height', scaleY );
|
|
|
|
if ( material instanceof THREE.SpriteMaterial ) {
|
|
|
|
_svgNode.setAttribute( 'style', 'fill: ' + material.color.getStyle() );
|
|
|
|
}
|
|
|
|
_svg.appendChild( _svgNode );
|
|
|
|
}
|
|
|
|
function renderLine( v1, v2, element, material ) {
|
|
|
|
_svgNode = getLineNode( _lineCount ++ );
|
|
|
|
_svgNode.setAttribute( 'x1', v1.positionScreen.x );
|
|
_svgNode.setAttribute( 'y1', v1.positionScreen.y );
|
|
_svgNode.setAttribute( 'x2', v2.positionScreen.x );
|
|
_svgNode.setAttribute( 'y2', v2.positionScreen.y );
|
|
|
|
if ( material instanceof THREE.LineBasicMaterial ) {
|
|
|
|
_svgNode.setAttribute( 'style', 'fill: none; stroke: ' + material.color.getStyle() + '; stroke-width: ' + material.linewidth + '; stroke-opacity: ' + material.opacity + '; stroke-linecap: ' + material.linecap + '; stroke-linejoin: ' + material.linejoin );
|
|
|
|
_svg.appendChild( _svgNode );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function renderFace3( v1, v2, v3, element, material ) {
|
|
|
|
_this.info.render.vertices += 3;
|
|
_this.info.render.faces ++;
|
|
|
|
_svgNode = getPathNode( _pathCount ++ );
|
|
_svgNode.setAttribute( 'd', 'M ' + v1.positionScreen.x + ' ' + v1.positionScreen.y + ' L ' + v2.positionScreen.x + ' ' + v2.positionScreen.y + ' L ' + v3.positionScreen.x + ',' + v3.positionScreen.y + 'z' );
|
|
|
|
if ( material instanceof THREE.MeshBasicMaterial ) {
|
|
|
|
_color.copy( material.color );
|
|
|
|
if ( material.vertexColors === THREE.FaceColors ) {
|
|
|
|
_color.multiply( element.color );
|
|
|
|
}
|
|
|
|
} else if ( material instanceof THREE.MeshLambertMaterial || material instanceof THREE.MeshPhongMaterial ) {
|
|
|
|
_diffuseColor.copy( material.color );
|
|
|
|
if ( material.vertexColors === THREE.FaceColors ) {
|
|
|
|
_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 instanceof THREE.MeshDepthMaterial ) {
|
|
|
|
_w = 1 - ( material.__2near / (material.__farPlusNear - element.z * material.__farMinusNear) );
|
|
_color.setRGB( _w, _w, _w );
|
|
|
|
} else if ( material instanceof THREE.MeshNormalMaterial ) {
|
|
|
|
_normal.copy( element.normalModel ).applyMatrix3( _normalViewMatrix );
|
|
|
|
_color.setRGB( _normal.x, _normal.y, _normal.z ).multiplyScalar( 0.5 ).addScalar( 0.5 );
|
|
|
|
}
|
|
|
|
if ( material.wireframe ) {
|
|
|
|
_svgNode.setAttribute( 'style', 'fill: none; stroke: ' + _color.getStyle() + '; stroke-width: ' + material.wireframeLinewidth + '; stroke-opacity: ' + material.opacity + '; stroke-linecap: ' + material.wireframeLinecap + '; stroke-linejoin: ' + material.wireframeLinejoin );
|
|
|
|
} else {
|
|
|
|
_svgNode.setAttribute( 'style', 'fill: ' + _color.getStyle() + '; fill-opacity: ' + material.opacity );
|
|
|
|
}
|
|
|
|
_svg.appendChild( _svgNode );
|
|
|
|
}
|
|
|
|
function getLineNode( id ) {
|
|
|
|
if ( _svgLinePool[ id ] == null ) {
|
|
|
|
_svgLinePool[ id ] = document.createElementNS( 'http://www.w3.org/2000/svg', 'line' );
|
|
|
|
if ( _quality == 0 ) {
|
|
|
|
_svgLinePool[ id ].setAttribute( 'shape-rendering', 'crispEdges' ); //optimizeSpeed
|
|
|
|
}
|
|
|
|
return _svgLinePool[ id ];
|
|
|
|
}
|
|
|
|
return _svgLinePool[ id ];
|
|
|
|
}
|
|
|
|
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 ];
|
|
|
|
}
|
|
|
|
function getRectNode( id ) {
|
|
|
|
if ( _svgRectPool[ id ] == null ) {
|
|
|
|
_svgRectPool[ id ] = document.createElementNS( 'http://www.w3.org/2000/svg', 'rect' );
|
|
|
|
if ( _quality == 0 ) {
|
|
|
|
_svgRectPool[ id ].setAttribute( 'shape-rendering', 'crispEdges' ); //optimizeSpeed
|
|
|
|
}
|
|
|
|
return _svgRectPool[ id ];
|
|
|
|
}
|
|
|
|
return _svgRectPool[ id ];
|
|
|
|
}
|
|
|
|
};
|