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import { EventDispatcher } from './EventDispatcher.js'; | |
import { Face3 } from './Face3.js'; | |
import { Matrix3 } from '../math/Matrix3.js'; | |
import { Sphere } from '../math/Sphere.js'; | |
import { Box3 } from '../math/Box3.js'; | |
import { Vector3 } from '../math/Vector3.js'; | |
import { Matrix4 } from '../math/Matrix4.js'; | |
import { Vector2 } from '../math/Vector2.js'; | |
import { Color } from '../math/Color.js'; | |
import { Object3D } from './Object3D.js'; | |
import { _Math } from '../math/Math.js'; | |
/** | |
* @author mrdoob / http://mrdoob.com/ | |
* @author kile / http://kile.stravaganza.org/ | |
* @author alteredq / http://alteredqualia.com/ | |
* @author mikael emtinger / http://gomo.se/ | |
* @author zz85 / http://www.lab4games.net/zz85/blog | |
* @author bhouston / http://clara.io | |
*/ | |
var geometryId = 0; // Geometry uses even numbers as Id | |
function Geometry() { | |
Object.defineProperty( this, 'id', { value: geometryId += 2 } ); | |
this.uuid = _Math.generateUUID(); | |
this.name = ''; | |
this.type = 'Geometry'; | |
this.vertices = []; | |
this.colors = []; | |
this.faces = []; | |
this.faceVertexUvs = [[]]; | |
this.morphTargets = []; | |
this.morphNormals = []; | |
this.skinWeights = []; | |
this.skinIndices = []; | |
this.lineDistances = []; | |
this.boundingBox = null; | |
this.boundingSphere = null; | |
// update flags | |
this.elementsNeedUpdate = false; | |
this.verticesNeedUpdate = false; | |
this.uvsNeedUpdate = false; | |
this.normalsNeedUpdate = false; | |
this.colorsNeedUpdate = false; | |
this.lineDistancesNeedUpdate = false; | |
this.groupsNeedUpdate = false; | |
} | |
Geometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), { | |
constructor: Geometry, | |
isGeometry: true, | |
applyMatrix: function ( matrix ) { | |
var normalMatrix = new Matrix3().getNormalMatrix( matrix ); | |
for ( var i = 0, il = this.vertices.length; i < il; i ++ ) { | |
var vertex = this.vertices[ i ]; | |
vertex.applyMatrix4( matrix ); | |
} | |
for ( var i = 0, il = this.faces.length; i < il; i ++ ) { | |
var face = this.faces[ i ]; | |
face.normal.applyMatrix3( normalMatrix ).normalize(); | |
for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) { | |
face.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize(); | |
} | |
} | |
if ( this.boundingBox !== null ) { | |
this.computeBoundingBox(); | |
} | |
if ( this.boundingSphere !== null ) { | |
this.computeBoundingSphere(); | |
} | |
this.verticesNeedUpdate = true; | |
this.normalsNeedUpdate = true; | |
return this; | |
}, | |
rotateX: function () { | |
// rotate geometry around world x-axis | |
var m1 = new Matrix4(); | |
return function rotateX( angle ) { | |
m1.makeRotationX( angle ); | |
this.applyMatrix( m1 ); | |
return this; | |
}; | |
}(), | |
rotateY: function () { | |
// rotate geometry around world y-axis | |
var m1 = new Matrix4(); | |
return function rotateY( angle ) { | |
m1.makeRotationY( angle ); | |
this.applyMatrix( m1 ); | |
return this; | |
}; | |
}(), | |
rotateZ: function () { | |
// rotate geometry around world z-axis | |
var m1 = new Matrix4(); | |
return function rotateZ( angle ) { | |
m1.makeRotationZ( angle ); | |
this.applyMatrix( m1 ); | |
return this; | |
}; | |
}(), | |
translate: function () { | |
// translate geometry | |
var m1 = new Matrix4(); | |
return function translate( x, y, z ) { | |
m1.makeTranslation( x, y, z ); | |
this.applyMatrix( m1 ); | |
return this; | |
}; | |
}(), | |
scale: function () { | |
// scale geometry | |
var m1 = new Matrix4(); | |
return function scale( x, y, z ) { | |
m1.makeScale( x, y, z ); | |
this.applyMatrix( m1 ); | |
return this; | |
}; | |
}(), | |
lookAt: function () { | |
var obj = new Object3D(); | |
return function lookAt( vector ) { | |
obj.lookAt( vector ); | |
obj.updateMatrix(); | |
this.applyMatrix( obj.matrix ); | |
}; | |
}(), | |
fromBufferGeometry: function ( geometry ) { | |
var scope = this; | |
var indices = geometry.index !== null ? geometry.index.array : undefined; | |
var attributes = geometry.attributes; | |
var positions = attributes.position.array; | |
var normals = attributes.normal !== undefined ? attributes.normal.array : undefined; | |
var colors = attributes.color !== undefined ? attributes.color.array : undefined; | |
var uvs = attributes.uv !== undefined ? attributes.uv.array : undefined; | |
var uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined; | |
if ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = []; | |
for ( var i = 0, j = 0; i < positions.length; i += 3, j += 2 ) { | |
scope.vertices.push( new Vector3().fromArray( positions, i ) ); | |
if ( colors !== undefined ) { | |
scope.colors.push( new Color().fromArray( colors, i ) ); | |
} | |
} | |
function addFace( a, b, c, materialIndex ) { | |
var vertexColors = ( colors === undefined ) ? [] : [ | |
scope.colors[ a ].clone(), | |
scope.colors[ b ].clone(), | |
scope.colors[ c ].clone() ]; | |
var vertexNormals = ( normals === undefined ) ? [] : [ | |
new Vector3().fromArray( normals, a * 3 ), | |
new Vector3().fromArray( normals, b * 3 ), | |
new Vector3().fromArray( normals, c * 3 ) | |
]; | |
var face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex ); | |
scope.faces.push( face ); | |
if ( uvs !== undefined ) { | |
scope.faceVertexUvs[ 0 ].push( [ | |
new Vector2().fromArray( uvs, a * 2 ), | |
new Vector2().fromArray( uvs, b * 2 ), | |
new Vector2().fromArray( uvs, c * 2 ) | |
] ); | |
} | |
if ( uvs2 !== undefined ) { | |
scope.faceVertexUvs[ 1 ].push( [ | |
new Vector2().fromArray( uvs2, a * 2 ), | |
new Vector2().fromArray( uvs2, b * 2 ), | |
new Vector2().fromArray( uvs2, c * 2 ) | |
] ); | |
} | |
} | |
var groups = geometry.groups; | |
if ( groups.length > 0 ) { | |
for ( var i = 0; i < groups.length; i ++ ) { | |
var group = groups[ i ]; | |
var start = group.start; | |
var count = group.count; | |
for ( var j = start, jl = start + count; j < jl; j += 3 ) { | |
if ( indices !== undefined ) { | |
addFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ], group.materialIndex ); | |
} else { | |
addFace( j, j + 1, j + 2, group.materialIndex ); | |
} | |
} | |
} | |
} else { | |
if ( indices !== undefined ) { | |
for ( var i = 0; i < indices.length; i += 3 ) { | |
addFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] ); | |
} | |
} else { | |
for ( var i = 0; i < positions.length / 3; i += 3 ) { | |
addFace( i, i + 1, i + 2 ); | |
} | |
} | |
} | |
this.computeFaceNormals(); | |
if ( geometry.boundingBox !== null ) { | |
this.boundingBox = geometry.boundingBox.clone(); | |
} | |
if ( geometry.boundingSphere !== null ) { | |
this.boundingSphere = geometry.boundingSphere.clone(); | |
} | |
return this; | |
}, | |
center: function () { | |
var offset = new Vector3(); | |
return function center() { | |
this.computeBoundingBox(); | |
this.boundingBox.getCenter( offset ).negate(); | |
this.translate( offset.x, offset.y, offset.z ); | |
return this; | |
}; | |
}(), | |
normalize: function () { | |
this.computeBoundingSphere(); | |
var center = this.boundingSphere.center; | |
var radius = this.boundingSphere.radius; | |
var s = radius === 0 ? 1 : 1.0 / radius; | |
var matrix = new Matrix4(); | |
matrix.set( | |
s, 0, 0, - s * center.x, | |
0, s, 0, - s * center.y, | |
0, 0, s, - s * center.z, | |
0, 0, 0, 1 | |
); | |
this.applyMatrix( matrix ); | |
return this; | |
}, | |
computeFaceNormals: function () { | |
var cb = new Vector3(), ab = new Vector3(); | |
for ( var f = 0, fl = this.faces.length; f < fl; f ++ ) { | |
var face = this.faces[ f ]; | |
var vA = this.vertices[ face.a ]; | |
var vB = this.vertices[ face.b ]; | |
var vC = this.vertices[ face.c ]; | |
cb.subVectors( vC, vB ); | |
ab.subVectors( vA, vB ); | |
cb.cross( ab ); | |
cb.normalize(); | |
face.normal.copy( cb ); | |
} | |
}, | |
computeVertexNormals: function ( areaWeighted ) { | |
if ( areaWeighted === undefined ) areaWeighted = true; | |
var v, vl, f, fl, face, vertices; | |
vertices = new Array( this.vertices.length ); | |
for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) { | |
vertices[ v ] = new Vector3(); | |
} | |
if ( areaWeighted ) { | |
// vertex normals weighted by triangle areas | |
// http://www.iquilezles.org/www/articles/normals/normals.htm | |
var vA, vB, vC; | |
var cb = new Vector3(), ab = new Vector3(); | |
for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { | |
face = this.faces[ f ]; | |
vA = this.vertices[ face.a ]; | |
vB = this.vertices[ face.b ]; | |
vC = this.vertices[ face.c ]; | |
cb.subVectors( vC, vB ); | |
ab.subVectors( vA, vB ); | |
cb.cross( ab ); | |
vertices[ face.a ].add( cb ); | |
vertices[ face.b ].add( cb ); | |
vertices[ face.c ].add( cb ); | |
} | |
} else { | |
this.computeFaceNormals(); | |
for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { | |
face = this.faces[ f ]; | |
vertices[ face.a ].add( face.normal ); | |
vertices[ face.b ].add( face.normal ); | |
vertices[ face.c ].add( face.normal ); | |
} | |
} | |
for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) { | |
vertices[ v ].normalize(); | |
} | |
for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { | |
face = this.faces[ f ]; | |
var vertexNormals = face.vertexNormals; | |
if ( vertexNormals.length === 3 ) { | |
vertexNormals[ 0 ].copy( vertices[ face.a ] ); | |
vertexNormals[ 1 ].copy( vertices[ face.b ] ); | |
vertexNormals[ 2 ].copy( vertices[ face.c ] ); | |
} else { | |
vertexNormals[ 0 ] = vertices[ face.a ].clone(); | |
vertexNormals[ 1 ] = vertices[ face.b ].clone(); | |
vertexNormals[ 2 ] = vertices[ face.c ].clone(); | |
} | |
} | |
if ( this.faces.length > 0 ) { | |
this.normalsNeedUpdate = true; | |
} | |
}, | |
computeFlatVertexNormals: function () { | |
var f, fl, face; | |
this.computeFaceNormals(); | |
for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { | |
face = this.faces[ f ]; | |
var vertexNormals = face.vertexNormals; | |
if ( vertexNormals.length === 3 ) { | |
vertexNormals[ 0 ].copy( face.normal ); | |
vertexNormals[ 1 ].copy( face.normal ); | |
vertexNormals[ 2 ].copy( face.normal ); | |
} else { | |
vertexNormals[ 0 ] = face.normal.clone(); | |
vertexNormals[ 1 ] = face.normal.clone(); | |
vertexNormals[ 2 ] = face.normal.clone(); | |
} | |
} | |
if ( this.faces.length > 0 ) { | |
this.normalsNeedUpdate = true; | |
} | |
}, | |
computeMorphNormals: function () { | |
var i, il, f, fl, face; | |
// save original normals | |
// - create temp variables on first access | |
// otherwise just copy (for faster repeated calls) | |
for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { | |
face = this.faces[ f ]; | |
if ( ! face.__originalFaceNormal ) { | |
face.__originalFaceNormal = face.normal.clone(); | |
} else { | |
face.__originalFaceNormal.copy( face.normal ); | |
} | |
if ( ! face.__originalVertexNormals ) face.__originalVertexNormals = []; | |
for ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) { | |
if ( ! face.__originalVertexNormals[ i ] ) { | |
face.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone(); | |
} else { | |
face.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] ); | |
} | |
} | |
} | |
// use temp geometry to compute face and vertex normals for each morph | |
var tmpGeo = new Geometry(); | |
tmpGeo.faces = this.faces; | |
for ( i = 0, il = this.morphTargets.length; i < il; i ++ ) { | |
// create on first access | |
if ( ! this.morphNormals[ i ] ) { | |
this.morphNormals[ i ] = {}; | |
this.morphNormals[ i ].faceNormals = []; | |
this.morphNormals[ i ].vertexNormals = []; | |
var dstNormalsFace = this.morphNormals[ i ].faceNormals; | |
var dstNormalsVertex = this.morphNormals[ i ].vertexNormals; | |
var faceNormal, vertexNormals; | |
for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { | |
faceNormal = new Vector3(); | |
vertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() }; | |
dstNormalsFace.push( faceNormal ); | |
dstNormalsVertex.push( vertexNormals ); | |
} | |
} | |
var morphNormals = this.morphNormals[ i ]; | |
// set vertices to morph target | |
tmpGeo.vertices = this.morphTargets[ i ].vertices; | |
// compute morph normals | |
tmpGeo.computeFaceNormals(); | |
tmpGeo.computeVertexNormals(); | |
// store morph normals | |
var faceNormal, vertexNormals; | |
for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { | |
face = this.faces[ f ]; | |
faceNormal = morphNormals.faceNormals[ f ]; | |
vertexNormals = morphNormals.vertexNormals[ f ]; | |
faceNormal.copy( face.normal ); | |
vertexNormals.a.copy( face.vertexNormals[ 0 ] ); | |
vertexNormals.b.copy( face.vertexNormals[ 1 ] ); | |
vertexNormals.c.copy( face.vertexNormals[ 2 ] ); | |
} | |
} | |
// restore original normals | |
for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { | |
face = this.faces[ f ]; | |
face.normal = face.__originalFaceNormal; | |
face.vertexNormals = face.__originalVertexNormals; | |
} | |
}, | |
computeBoundingBox: function () { | |
if ( this.boundingBox === null ) { | |
this.boundingBox = new Box3(); | |
} | |
this.boundingBox.setFromPoints( this.vertices ); | |
}, | |
computeBoundingSphere: function () { | |
if ( this.boundingSphere === null ) { | |
this.boundingSphere = new Sphere(); | |
} | |
this.boundingSphere.setFromPoints( this.vertices ); | |
}, | |
merge: function ( geometry, matrix, materialIndexOffset ) { | |
if ( ! ( geometry && geometry.isGeometry ) ) { | |
console.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry ); | |
return; | |
} | |
var normalMatrix, | |
vertexOffset = this.vertices.length, | |
vertices1 = this.vertices, | |
vertices2 = geometry.vertices, | |
faces1 = this.faces, | |
faces2 = geometry.faces, | |
uvs1 = this.faceVertexUvs[ 0 ], | |
uvs2 = geometry.faceVertexUvs[ 0 ], | |
colors1 = this.colors, | |
colors2 = geometry.colors; | |
if ( materialIndexOffset === undefined ) materialIndexOffset = 0; | |
if ( matrix !== undefined ) { | |
normalMatrix = new Matrix3().getNormalMatrix( matrix ); | |
} | |
// vertices | |
for ( var i = 0, il = vertices2.length; i < il; i ++ ) { | |
var vertex = vertices2[ i ]; | |
var vertexCopy = vertex.clone(); | |
if ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix ); | |
vertices1.push( vertexCopy ); | |
} | |
// colors | |
for ( var i = 0, il = colors2.length; i < il; i ++ ) { | |
colors1.push( colors2[ i ].clone() ); | |
} | |
// faces | |
for ( i = 0, il = faces2.length; i < il; i ++ ) { | |
var face = faces2[ i ], faceCopy, normal, color, | |
faceVertexNormals = face.vertexNormals, | |
faceVertexColors = face.vertexColors; | |
faceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset ); | |
faceCopy.normal.copy( face.normal ); | |
if ( normalMatrix !== undefined ) { | |
faceCopy.normal.applyMatrix3( normalMatrix ).normalize(); | |
} | |
for ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) { | |
normal = faceVertexNormals[ j ].clone(); | |
if ( normalMatrix !== undefined ) { | |
normal.applyMatrix3( normalMatrix ).normalize(); | |
} | |
faceCopy.vertexNormals.push( normal ); | |
} | |
faceCopy.color.copy( face.color ); | |
for ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) { | |
color = faceVertexColors[ j ]; | |
faceCopy.vertexColors.push( color.clone() ); | |
} | |
faceCopy.materialIndex = face.materialIndex + materialIndexOffset; | |
faces1.push( faceCopy ); | |
} | |
// uvs | |
for ( i = 0, il = uvs2.length; i < il; i ++ ) { | |
var uv = uvs2[ i ], uvCopy = []; | |
if ( uv === undefined ) { | |
continue; | |
} | |
for ( var j = 0, jl = uv.length; j < jl; j ++ ) { | |
uvCopy.push( uv[ j ].clone() ); | |
} | |
uvs1.push( uvCopy ); | |
} | |
}, | |
mergeMesh: function ( mesh ) { | |
if ( ! ( mesh && mesh.isMesh ) ) { | |
console.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh ); | |
return; | |
} | |
if ( mesh.matrixAutoUpdate ) mesh.updateMatrix(); | |
this.merge( mesh.geometry, mesh.matrix ); | |
}, | |
/* | |
* Checks for duplicate vertices with hashmap. | |
* Duplicated vertices are removed | |
* and faces' vertices are updated. | |
*/ | |
mergeVertices: function () { | |
var verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique) | |
var unique = [], changes = []; | |
var v, key; | |
var precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001 | |
var precision = Math.pow( 10, precisionPoints ); | |
var i, il, face; | |
var indices, j, jl; | |
for ( i = 0, il = this.vertices.length; i < il; i ++ ) { | |
v = this.vertices[ i ]; | |
key = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision ); | |
if ( verticesMap[ key ] === undefined ) { | |
verticesMap[ key ] = i; | |
unique.push( this.vertices[ i ] ); | |
changes[ i ] = unique.length - 1; | |
} else { | |
//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]); | |
changes[ i ] = changes[ verticesMap[ key ] ]; | |
} | |
} | |
// if faces are completely degenerate after merging vertices, we | |
// have to remove them from the geometry. | |
var faceIndicesToRemove = []; | |
for ( i = 0, il = this.faces.length; i < il; i ++ ) { | |
face = this.faces[ i ]; | |
face.a = changes[ face.a ]; | |
face.b = changes[ face.b ]; | |
face.c = changes[ face.c ]; | |
indices = [ face.a, face.b, face.c ]; | |
// if any duplicate vertices are found in a Face3 | |
// we have to remove the face as nothing can be saved | |
for ( var n = 0; n < 3; n ++ ) { | |
if ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) { | |
faceIndicesToRemove.push( i ); | |
break; | |
} | |
} | |
} | |
for ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) { | |
var idx = faceIndicesToRemove[ i ]; | |
this.faces.splice( idx, 1 ); | |
for ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) { | |
this.faceVertexUvs[ j ].splice( idx, 1 ); | |
} | |
} | |
// Use unique set of vertices | |
var diff = this.vertices.length - unique.length; | |
this.vertices = unique; | |
return diff; | |
}, | |
setFromPoints: function ( points ) { | |
this.vertices = []; | |
for ( var i = 0, l = points.length; i < l; i ++ ) { | |
var point = points[ i ]; | |
this.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) ); | |
} | |
return this; | |
}, | |
sortFacesByMaterialIndex: function () { | |
var faces = this.faces; | |
var length = faces.length; | |
// tag faces | |
for ( var i = 0; i < length; i ++ ) { | |
faces[ i ]._id = i; | |
} | |
// sort faces | |
function materialIndexSort( a, b ) { | |
return a.materialIndex - b.materialIndex; | |
} | |
faces.sort( materialIndexSort ); | |
// sort uvs | |
var uvs1 = this.faceVertexUvs[ 0 ]; | |
var uvs2 = this.faceVertexUvs[ 1 ]; | |
var newUvs1, newUvs2; | |
if ( uvs1 && uvs1.length === length ) newUvs1 = []; | |
if ( uvs2 && uvs2.length === length ) newUvs2 = []; | |
for ( var i = 0; i < length; i ++ ) { | |
var id = faces[ i ]._id; | |
if ( newUvs1 ) newUvs1.push( uvs1[ id ] ); | |
if ( newUvs2 ) newUvs2.push( uvs2[ id ] ); | |
} | |
if ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1; | |
if ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2; | |
}, | |
toJSON: function () { | |
var data = { | |
metadata: { | |
version: 4.5, | |
type: 'Geometry', | |
generator: 'Geometry.toJSON' | |
} | |
}; | |
// standard Geometry serialization | |
data.uuid = this.uuid; | |
data.type = this.type; | |
if ( this.name !== '' ) data.name = this.name; | |
if ( this.parameters !== undefined ) { | |
var parameters = this.parameters; | |
for ( var key in parameters ) { | |
if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ]; | |
} | |
return data; | |
} | |
var vertices = []; | |
for ( var i = 0; i < this.vertices.length; i ++ ) { | |
var vertex = this.vertices[ i ]; | |
vertices.push( vertex.x, vertex.y, vertex.z ); | |
} | |
var faces = []; | |
var normals = []; | |
var normalsHash = {}; | |
var colors = []; | |
var colorsHash = {}; | |
var uvs = []; | |
var uvsHash = {}; | |
for ( var i = 0; i < this.faces.length; i ++ ) { | |
var face = this.faces[ i ]; | |
var hasMaterial = true; | |
var hasFaceUv = false; // deprecated | |
var hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined; | |
var hasFaceNormal = face.normal.length() > 0; | |
var hasFaceVertexNormal = face.vertexNormals.length > 0; | |
var hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1; | |
var hasFaceVertexColor = face.vertexColors.length > 0; | |
var faceType = 0; | |
faceType = setBit( faceType, 0, 0 ); // isQuad | |
faceType = setBit( faceType, 1, hasMaterial ); | |
faceType = setBit( faceType, 2, hasFaceUv ); | |
faceType = setBit( faceType, 3, hasFaceVertexUv ); | |
faceType = setBit( faceType, 4, hasFaceNormal ); | |
faceType = setBit( faceType, 5, hasFaceVertexNormal ); | |
faceType = setBit( faceType, 6, hasFaceColor ); | |
faceType = setBit( faceType, 7, hasFaceVertexColor ); | |
faces.push( faceType ); | |
faces.push( face.a, face.b, face.c ); | |
faces.push( face.materialIndex ); | |
if ( hasFaceVertexUv ) { | |
var faceVertexUvs = this.faceVertexUvs[ 0 ][ i ]; | |
faces.push( | |
getUvIndex( faceVertexUvs[ 0 ] ), | |
getUvIndex( faceVertexUvs[ 1 ] ), | |
getUvIndex( faceVertexUvs[ 2 ] ) | |
); | |
} | |
if ( hasFaceNormal ) { | |
faces.push( getNormalIndex( face.normal ) ); | |
} | |
if ( hasFaceVertexNormal ) { | |
var vertexNormals = face.vertexNormals; | |
faces.push( | |
getNormalIndex( vertexNormals[ 0 ] ), | |
getNormalIndex( vertexNormals[ 1 ] ), | |
getNormalIndex( vertexNormals[ 2 ] ) | |
); | |
} | |
if ( hasFaceColor ) { | |
faces.push( getColorIndex( face.color ) ); | |
} | |
if ( hasFaceVertexColor ) { | |
var vertexColors = face.vertexColors; | |
faces.push( | |
getColorIndex( vertexColors[ 0 ] ), | |
getColorIndex( vertexColors[ 1 ] ), | |
getColorIndex( vertexColors[ 2 ] ) | |
); | |
} | |
} | |
function setBit( value, position, enabled ) { | |
return enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) ); | |
} | |
function getNormalIndex( normal ) { | |
var hash = normal.x.toString() + normal.y.toString() + normal.z.toString(); | |
if ( normalsHash[ hash ] !== undefined ) { | |
return normalsHash[ hash ]; | |
} | |
normalsHash[ hash ] = normals.length / 3; | |
normals.push( normal.x, normal.y, normal.z ); | |
return normalsHash[ hash ]; | |
} | |
function getColorIndex( color ) { | |
var hash = color.r.toString() + color.g.toString() + color.b.toString(); | |
if ( colorsHash[ hash ] !== undefined ) { | |
return colorsHash[ hash ]; | |
} | |
colorsHash[ hash ] = colors.length; | |
colors.push( color.getHex() ); | |
return colorsHash[ hash ]; | |
} | |
function getUvIndex( uv ) { | |
var hash = uv.x.toString() + uv.y.toString(); | |
if ( uvsHash[ hash ] !== undefined ) { | |
return uvsHash[ hash ]; | |
} | |
uvsHash[ hash ] = uvs.length / 2; | |
uvs.push( uv.x, uv.y ); | |
return uvsHash[ hash ]; | |
} | |
data.data = {}; | |
data.data.vertices = vertices; | |
data.data.normals = normals; | |
if ( colors.length > 0 ) data.data.colors = colors; | |
if ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility | |
data.data.faces = faces; | |
return data; | |
}, | |
clone: function () { | |
/* | |
// Handle primitives | |
var parameters = this.parameters; | |
if ( parameters !== undefined ) { | |
var values = []; | |
for ( var key in parameters ) { | |
values.push( parameters[ key ] ); | |
} | |
var geometry = Object.create( this.constructor.prototype ); | |
this.constructor.apply( geometry, values ); | |
return geometry; | |
} | |
return new this.constructor().copy( this ); | |
*/ | |
return new Geometry().copy( this ); | |
}, | |
copy: function ( source ) { | |
var i, il, j, jl, k, kl; | |
// reset | |
this.vertices = []; | |
this.colors = []; | |
this.faces = []; | |
this.faceVertexUvs = [[]]; | |
this.morphTargets = []; | |
this.morphNormals = []; | |
this.skinWeights = []; | |
this.skinIndices = []; | |
this.lineDistances = []; | |
this.boundingBox = null; | |
this.boundingSphere = null; | |
// name | |
this.name = source.name; | |
// vertices | |
var vertices = source.vertices; | |
for ( i = 0, il = vertices.length; i < il; i ++ ) { | |
this.vertices.push( vertices[ i ].clone() ); | |
} | |
// colors | |
var colors = source.colors; | |
for ( i = 0, il = colors.length; i < il; i ++ ) { | |
this.colors.push( colors[ i ].clone() ); | |
} | |
// faces | |
var faces = source.faces; | |
for ( i = 0, il = faces.length; i < il; i ++ ) { | |
this.faces.push( faces[ i ].clone() ); | |
} | |
// face vertex uvs | |
for ( i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) { | |
var faceVertexUvs = source.faceVertexUvs[ i ]; | |
if ( this.faceVertexUvs[ i ] === undefined ) { | |
this.faceVertexUvs[ i ] = []; | |
} | |
for ( j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) { | |
var uvs = faceVertexUvs[ j ], uvsCopy = []; | |
for ( k = 0, kl = uvs.length; k < kl; k ++ ) { | |
var uv = uvs[ k ]; | |
uvsCopy.push( uv.clone() ); | |
} | |
this.faceVertexUvs[ i ].push( uvsCopy ); | |
} | |
} | |
// morph targets | |
var morphTargets = source.morphTargets; | |
for ( i = 0, il = morphTargets.length; i < il; i ++ ) { | |
var morphTarget = {}; | |
morphTarget.name = morphTargets[ i ].name; | |
// vertices | |
if ( morphTargets[ i ].vertices !== undefined ) { | |
morphTarget.vertices = []; | |
for ( j = 0, jl = morphTargets[ i ].vertices.length; j < jl; j ++ ) { | |
morphTarget.vertices.push( morphTargets[ i ].vertices[ j ].clone() ); | |
} | |
} | |
// normals | |
if ( morphTargets[ i ].normals !== undefined ) { | |
morphTarget.normals = []; | |
for ( j = 0, jl = morphTargets[ i ].normals.length; j < jl; j ++ ) { | |
morphTarget.normals.push( morphTargets[ i ].normals[ j ].clone() ); | |
} | |
} | |
this.morphTargets.push( morphTarget ); | |
} | |
// morph normals | |
var morphNormals = source.morphNormals; | |
for ( i = 0, il = morphNormals.length; i < il; i ++ ) { | |
var morphNormal = {}; | |
// vertex normals | |
if ( morphNormals[ i ].vertexNormals !== undefined ) { | |
morphNormal.vertexNormals = []; | |
for ( j = 0, jl = morphNormals[ i ].vertexNormals.length; j < jl; j ++ ) { | |
var srcVertexNormal = morphNormals[ i ].vertexNormals[ j ]; | |
var destVertexNormal = {}; | |
destVertexNormal.a = srcVertexNormal.a.clone(); | |
destVertexNormal.b = srcVertexNormal.b.clone(); | |
destVertexNormal.c = srcVertexNormal.c.clone(); | |
morphNormal.vertexNormals.push( destVertexNormal ); | |
} | |
} | |
// face normals | |
if ( morphNormals[ i ].faceNormals !== undefined ) { | |
morphNormal.faceNormals = []; | |
for ( j = 0, jl = morphNormals[ i ].faceNormals.length; j < jl; j ++ ) { | |
morphNormal.faceNormals.push( morphNormals[ i ].faceNormals[ j ].clone() ); | |
} | |
} | |
this.morphNormals.push( morphNormal ); | |
} | |
// skin weights | |
var skinWeights = source.skinWeights; | |
for ( i = 0, il = skinWeights.length; i < il; i ++ ) { | |
this.skinWeights.push( skinWeights[ i ].clone() ); | |
} | |
// skin indices | |
var skinIndices = source.skinIndices; | |
for ( i = 0, il = skinIndices.length; i < il; i ++ ) { | |
this.skinIndices.push( skinIndices[ i ].clone() ); | |
} | |
// line distances | |
var lineDistances = source.lineDistances; | |
for ( i = 0, il = lineDistances.length; i < il; i ++ ) { | |
this.lineDistances.push( lineDistances[ i ] ); | |
} | |
// bounding box | |
var boundingBox = source.boundingBox; | |
if ( boundingBox !== null ) { | |
this.boundingBox = boundingBox.clone(); | |
} | |
// bounding sphere | |
var boundingSphere = source.boundingSphere; | |
if ( boundingSphere !== null ) { | |
this.boundingSphere = boundingSphere.clone(); | |
} | |
// update flags | |
this.elementsNeedUpdate = source.elementsNeedUpdate; | |
this.verticesNeedUpdate = source.verticesNeedUpdate; | |
this.uvsNeedUpdate = source.uvsNeedUpdate; | |
this.normalsNeedUpdate = source.normalsNeedUpdate; | |
this.colorsNeedUpdate = source.colorsNeedUpdate; | |
this.lineDistancesNeedUpdate = source.lineDistancesNeedUpdate; | |
this.groupsNeedUpdate = source.groupsNeedUpdate; | |
return this; | |
}, | |
dispose: function () { | |
this.dispatchEvent( { type: 'dispose' } ); | |
} | |
} ); | |
export { Geometry }; | |