275 lines
5.2 KiB
JavaScript
275 lines
5.2 KiB
JavaScript
/**
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* @author mrdoob / http://mrdoob.com/
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*/
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import { Vector2 } from '../math/Vector2.js';
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function DirectGeometry() {
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this.vertices = [];
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this.normals = [];
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this.colors = [];
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this.uvs = [];
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this.uvs2 = [];
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this.groups = [];
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this.morphTargets = {};
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this.skinWeights = [];
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this.skinIndices = [];
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// this.lineDistances = [];
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this.boundingBox = null;
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this.boundingSphere = null;
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// update flags
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this.verticesNeedUpdate = false;
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this.normalsNeedUpdate = false;
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this.colorsNeedUpdate = false;
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this.uvsNeedUpdate = false;
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this.groupsNeedUpdate = false;
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}
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Object.assign( DirectGeometry.prototype, {
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computeGroups: function ( geometry ) {
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var group;
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var groups = [];
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var materialIndex = undefined;
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var faces = geometry.faces;
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for ( var i = 0; i < faces.length; i ++ ) {
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var face = faces[ i ];
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// materials
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if ( face.materialIndex !== materialIndex ) {
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materialIndex = face.materialIndex;
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if ( group !== undefined ) {
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group.count = ( i * 3 ) - group.start;
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groups.push( group );
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}
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group = {
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start: i * 3,
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materialIndex: materialIndex
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};
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}
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}
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if ( group !== undefined ) {
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group.count = ( i * 3 ) - group.start;
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groups.push( group );
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}
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this.groups = groups;
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},
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fromGeometry: function ( geometry ) {
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var faces = geometry.faces;
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var vertices = geometry.vertices;
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var faceVertexUvs = geometry.faceVertexUvs;
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var hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0;
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var hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0;
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// morphs
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var morphTargets = geometry.morphTargets;
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var morphTargetsLength = morphTargets.length;
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var morphTargetsPosition;
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if ( morphTargetsLength > 0 ) {
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morphTargetsPosition = [];
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for ( var i = 0; i < morphTargetsLength; i ++ ) {
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morphTargetsPosition[ i ] = {
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name: morphTargets[ i ].name,
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data: []
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};
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}
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this.morphTargets.position = morphTargetsPosition;
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}
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var morphNormals = geometry.morphNormals;
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var morphNormalsLength = morphNormals.length;
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var morphTargetsNormal;
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if ( morphNormalsLength > 0 ) {
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morphTargetsNormal = [];
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for ( var i = 0; i < morphNormalsLength; i ++ ) {
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morphTargetsNormal[ i ] = {
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name: morphNormals[ i ].name,
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data: []
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};
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}
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this.morphTargets.normal = morphTargetsNormal;
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}
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// skins
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var skinIndices = geometry.skinIndices;
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var skinWeights = geometry.skinWeights;
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var hasSkinIndices = skinIndices.length === vertices.length;
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var hasSkinWeights = skinWeights.length === vertices.length;
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//
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if ( vertices.length > 0 && faces.length === 0 ) {
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console.error( 'THREE.DirectGeometry: Faceless geometries are not supported.' );
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}
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for ( var i = 0; i < faces.length; i ++ ) {
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var face = faces[ i ];
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this.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] );
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var vertexNormals = face.vertexNormals;
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if ( vertexNormals.length === 3 ) {
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this.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] );
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} else {
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var normal = face.normal;
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this.normals.push( normal, normal, normal );
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}
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var vertexColors = face.vertexColors;
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if ( vertexColors.length === 3 ) {
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this.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] );
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} else {
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var color = face.color;
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this.colors.push( color, color, color );
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}
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if ( hasFaceVertexUv === true ) {
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var vertexUvs = faceVertexUvs[ 0 ][ i ];
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if ( vertexUvs !== undefined ) {
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this.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );
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} else {
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console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i );
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this.uvs.push( new Vector2(), new Vector2(), new Vector2() );
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}
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}
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if ( hasFaceVertexUv2 === true ) {
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var vertexUvs = faceVertexUvs[ 1 ][ i ];
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if ( vertexUvs !== undefined ) {
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this.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );
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} else {
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console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i );
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this.uvs2.push( new Vector2(), new Vector2(), new Vector2() );
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}
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}
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// morphs
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for ( var j = 0; j < morphTargetsLength; j ++ ) {
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var morphTarget = morphTargets[ j ].vertices;
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morphTargetsPosition[ j ].data.push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] );
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}
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for ( var j = 0; j < morphNormalsLength; j ++ ) {
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var morphNormal = morphNormals[ j ].vertexNormals[ i ];
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morphTargetsNormal[ j ].data.push( morphNormal.a, morphNormal.b, morphNormal.c );
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}
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// skins
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if ( hasSkinIndices ) {
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this.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] );
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}
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if ( hasSkinWeights ) {
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this.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] );
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}
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}
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this.computeGroups( geometry );
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this.verticesNeedUpdate = geometry.verticesNeedUpdate;
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this.normalsNeedUpdate = geometry.normalsNeedUpdate;
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this.colorsNeedUpdate = geometry.colorsNeedUpdate;
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this.uvsNeedUpdate = geometry.uvsNeedUpdate;
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this.groupsNeedUpdate = geometry.groupsNeedUpdate;
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return this;
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}
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} );
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export { DirectGeometry };
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