mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-07-08 11:40:43 +02:00
756 lines
17 KiB
JavaScript
Executable File
756 lines
17 KiB
JavaScript
Executable File
/**
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* @author mrdoob / http://mrdoob.com/
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* @author kile / http://kile.stravaganza.org/
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* @author alteredq / http://alteredqualia.com/
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* @author mikael emtinger / http://gomo.se/
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* @author zz85 / http://www.lab4games.net/zz85/blog
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* @author bhouston / http://exocortex.com
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* @author jbaicoianu / http://baicoianu.com
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*/
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THREE.ProxyGeometry = function ( ) {
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THREE.BufferGeometry.call( this );
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this.addEventListener( 'allocate', this.onGeometryAllocate);
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// TODO - implement as BufferGeometry attributes
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this.morphTargets = [];
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this.morphColors = [];
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};
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THREE.ProxyGeometry.prototype = Object.create( THREE.IndexedGeometry2.prototype );
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THREE.ProxyGeometry.prototype.constructor = THREE.ProxyGeometry;
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Object.defineProperties(THREE.ProxyGeometry.prototype, {
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vertices: {
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enumerable: true,
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configurable: true,
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get: function() { return this.createVertexProxies(); }
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},
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faces: {
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enumerable: true,
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get: function() { return this.createFaceProxies() }
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},
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faceVertexUvs: {
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enumerable: true,
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get: function() { return this.createUvProxies() }
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},
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colors: {
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enumerable: true,
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get: function() { return this.createColorProxies() }
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},
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skinIndices: {
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enumerable: true,
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get: function() { return this.createSkinIndexProxies() }
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},
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skinWeights: {
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enumerable: true,
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get: function() { return this.createSkinWeightProxies() }
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},
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// TODO - fill in additional proxies:
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// - morphColors
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// - morphNormals
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// - morphTargets
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verticesNeedUpdate: {
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enumerable: true,
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get: function() { if (this.attributes[ 'position' ]) return this.attributes[ 'position' ].needsUpdate; },
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set: function(v) { if (this.attributes[ 'position' ]) this.attributes[ 'position' ].needsUpdate = v; }
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},
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colorsNeedUpdate: {
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enumerable: true,
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get: function() { if (this.attributes[ 'color' ]) return this.attributes[ 'color' ].needsUpdate; },
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set: function(v) { if (this.attributes[ 'color' ]) this.attributes[ 'color' ].needsUpdate = v; }
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},
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normalsNeedUpdate: {
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enumerable: true,
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get: function() { if (this.attributes[ 'normal' ]) return this.attributes[ 'normal' ].needsUpdate; },
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set: function(v) { if (this.attributes[ 'normal' ]) this.attributes[ 'normal' ].needsUpdate = v; }
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},
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});
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THREE.ProxyGeometry.prototype.createVertexProxies = function(values) {
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if (!this.hasOwnProperty('vertices')) {
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// Replace the prototype getter with a local array property
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Object.defineProperty( this, "vertices", { value: [], writable: true } );
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} else {
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// Start with a new, empty array
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this.vertices = [];
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}
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// If the attribute buffer has already been populated, set up proxy objects
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this.populateProxyFromBuffer(this.vertices, "position", THREE.ProxyVector3, 3);
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// If values were passed in, store them in the buffer via the proxy objects
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if (values) {
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for (var i = 0; i < values.length; i ++) {
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this.vertices[i].copy(values[i]);
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}
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}
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// Return a reference to the newly-created array
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return this.vertices;
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}
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THREE.ProxyGeometry.prototype.createFaceProxies = function(values) {
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if (!this.hasOwnProperty("faces")) {
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// Replace the prototype getter with a local array property
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Object.defineProperty( this, "faces", { value: [], writable: true } );
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} else {
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// Start with a new, empty array
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this.faces = [];
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}
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// If the attribute buffer has already been populated, set up proxy objects
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var faces = this.faces,
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indexarray = false,
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positionarray = false,
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normalarray = false,
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colorarray = false,
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tangentarray = false;
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if ( this.attributes[ 'index' ] ) {
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indexarray = this.attributes[ 'index' ].array;
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}
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if ( this.attributes[ 'position' ] ) {
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positionarray = this.attributes[ 'position' ].array;
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}
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if (this.attributes[ 'normal' ]) {
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normalarray = this.attributes[ 'normal' ].array;
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}
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if (this.attributes[ 'color' ]) {
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colorarray = this.attributes[ 'color' ].array;
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}
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if (this.attributes[ 'tangent' ]) {
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tangentarray = this.attributes[ 'tangent' ].array;
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}
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// TODO - this should be accomplished using "virtual" functions on various classes (IndexedGeometry, SmoothGeometry, etc)
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if (indexarray) {
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for ( var i = 0, l = indexarray.length / 3; i < l; i ++ ) {
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var o = i * 3;
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var face = new THREE.ProxyFace3( indexarray, i * 3 );
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faces.push(face);
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}
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} else if (positionarray) {
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for ( var i = 0, l = positionarray.length / 3; i < l; i += 3 ) {
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var o = i * 3;
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var v1 = i, v2 = i + 1, v3 = i + 2;
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var face = new THREE.ProxyFace3( v1, v2, v3 );
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faces.push(face);
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}
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}
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// If values were passed in, store them in the buffer via the proxy objects
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if (values) {
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for (var i = 0, l = values.length; i < l; i ++) {
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var f = faces[i],
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v = values[i];
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f.a = v.a;
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f.b = v.b;
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f.c = v.c;
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}
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}
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if (normalarray) {
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this.createFaceVertexNormalProxies(values);
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}
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if (colorarray) {
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this.createFaceVertexColorProxies(values);
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}
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if (tangentarray) {
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this.createFaceVertexTangentProxies(values);
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}
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// Return a reference to the newly-created array
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return this.faces;
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}
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THREE.ProxyGeometry.prototype.createFaceVertexNormalProxies = function(values) {
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if ( this.attributes[ 'normal' ] && this.attributes[ 'normal' ].array ) {
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var normalarray = this.attributes[ 'normal' ].array;
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for (var i = 0, l = this.faces.length; i < l; i ++) {
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var f = this.faces[i];
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f.vertexNormals = [
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new THREE.ProxyVector3(normalarray, f.a * 3),
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new THREE.ProxyVector3(normalarray, f.b * 3),
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new THREE.ProxyVector3(normalarray, f.c * 3),
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];
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f.normal = new THREE.MultiVector3(f.vertexNormals);
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}
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}
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// If values were passed in, store them in the buffer via the proxy objects
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if (values) {
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for (var i = 0, l = values.length; i < l; i ++) {
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var f = this.faces[i],
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v = values[i];
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if (v.vertexNormals.length > 0) {
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for (var j = 0, l2 = f.vertexNormals.length; j < l2; j ++) {
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f.vertexNormals[j].copy(v.vertexNormals[j]);
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}
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} else if (v.normal) {
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f.normal.copy(v.normal);
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}
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}
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}
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}
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THREE.ProxyGeometry.prototype.createFaceVertexColorProxies = function(values) {
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if ( this.attributes[ 'color' ] && this.attributes[ 'color' ].array ) {
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var colorarray = this.attributes[ 'color' ].array;
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for (var i = 0, l = this.faces.length; i < l; i ++) {
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var f = this.faces[i];
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if ( this.attributes[ 'index' ] ) {
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f.vertexColors = [
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new THREE.ProxyColor(colorarray, f.a * 3),
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new THREE.ProxyColor(colorarray, f.b * 3),
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new THREE.ProxyColor(colorarray, f.c * 3),
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];
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} else {
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var o = i * 9;
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f.vertexColors = [
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new THREE.ProxyColor(colorarray, o),
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new THREE.ProxyColor(colorarray, o + 3),
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new THREE.ProxyColor(colorarray, o + 6),
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];
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}
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f.color = new THREE.MultiColor(f.vertexColors);
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}
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}
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// If values were passed in, store them in the buffer via the proxy objects
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if (values) {
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for (var i = 0, l = values.length; i < l; i ++) {
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var f = this.faces[i],
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v = values[i];
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for (var j = 0, l2 = f.vertexColors.length; j < l2; j ++) {
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if (v.vertexColors.length > 0) {
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f.vertexColors[j].copy(v.vertexColors[j]);
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} else if (v.color) {
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f.color.copy(v.color);
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}
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}
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}
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}
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}
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THREE.ProxyGeometry.prototype.createFaceVertexTangentProxies = function(values) {
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if ( this.attributes[ 'tangent' ] && this.attributes[ 'tangent' ].array ) {
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var tangentarray = this.attributes[ 'tangent' ].array;
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for (var i = 0, l = this.faces.length; i < l; i ++) {
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var f = this.faces[i];
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f.vertexTangents = [
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new THREE.ProxyVector3(tangentarray, f.a * 3),
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new THREE.ProxyVector3(tangentarray, f.b * 3),
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new THREE.ProxyVector3(tangentarray, f.c * 3),
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];
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}
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}
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// If values were passed in, store them in the buffer via the proxy objects
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if (values) {
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for (var i = 0, l = values.length; i < l; i ++) {
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var f = this.faces[i],
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v = values[i];
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if (v.vertexTangents.length > 0) {
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for (var j = 0, l2 = f.vertexTangents.length; j < l2; j ++) {
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f.vertexTangents[j].copy(v.vertexTangents[j]);
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}
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}
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}
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}
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}
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THREE.ProxyGeometry.prototype.createUvProxies = function(values) {
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// Replace the prototype getter with a local array property
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if (!this.hasOwnProperty("faceVertexUvs")) {
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Object.defineProperty( this, "faceVertexUvs", { value: [[]], writable: true } );
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} else {
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this.faceVertexUvs = [[]];
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}
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// If the attribute buffer has already been populated, set up proxy objects
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if ( this.attributes[ 'uv' ] && this.attributes[ 'uv' ].array ) {
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var faces = this.faces;
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var uvarray = this.attributes[ 'uv' ].array;
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for (var i = 0, l = faces.length; i < l; i ++) {
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var f = faces[i];
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this.faceVertexUvs[0][i] = [];
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if ( this.attributes[ 'index' ] ) {
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this.faceVertexUvs[0][i][0] = new THREE.ProxyVector2(uvarray, f.a * 2);
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this.faceVertexUvs[0][i][1] = new THREE.ProxyVector2(uvarray, f.b * 2);
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this.faceVertexUvs[0][i][2] = new THREE.ProxyVector2(uvarray, f.c * 2);
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} else {
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var o = i * 6;
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this.faceVertexUvs[0][i][0] = new THREE.ProxyVector2(uvarray, o);
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this.faceVertexUvs[0][i][1] = new THREE.ProxyVector2(uvarray, o + 2);
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this.faceVertexUvs[0][i][2] = new THREE.ProxyVector2(uvarray, o + 4);
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}
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}
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}
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// If values were passed in, store them in the buffer via the proxy objects
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if (values) {
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for (var i = 0, l = values.length; i < l; i ++) {
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for (var j = 0, l2 = values[i].length; j < l2; j ++) {
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var uv = values[i][j];
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this.faceVertexUvs[0][i][j].copy(uv);
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}
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}
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}
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// Return a reference to the newly-created array
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return this.faceVertexUvs;
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}
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THREE.ProxyGeometry.prototype.createSkinIndexProxies = function(values) {
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// Replace the prototype getter with a local array property
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if (!this.hasOwnProperty('skinIndices')) {
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Object.defineProperty( this, "skinIndices", { value: [], writable: true } );
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} else {
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this.skinIndices = [];
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}
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// If the attribute buffer has already been populated, set up proxy objects
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this.populateProxyFromBuffer(this.skinIndices, "skinIndex", THREE.ProxyVector4, 4);
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// If values were passed in, store them in the buffer via the proxy objects
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if (values) {
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for (var i = 0; i < values.length; i ++) {
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this.skinIndices[i].copy(values[i]);
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}
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}
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// Return a reference to the newly-created array
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return this.skinIndices;
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}
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THREE.ProxyGeometry.prototype.createSkinWeightProxies = function(values) {
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// Replace the prototype getter with a local array property
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if (!this.hasOwnProperty('skinWeights')) {
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Object.defineProperty( this, "skinWeights", { value: [], writable: true } );
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} else {
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this.skinWeights = [];
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}
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// If the attribute buffer has already been populated, set up proxy objects
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this.populateProxyFromBuffer(this.skinWeights, "skinWeight", THREE.ProxyVector4, 4);
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// If values were passed in, store them in the buffer via the proxy objects
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if (values) {
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for (var i = 0; i < values.length; i ++) {
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this.skinWeights[i].copy(values[i]);
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}
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}
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// Return a reference to the newly-created array
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return this.skinWeights;
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}
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THREE.ProxyGeometry.prototype.createColorProxies = function(values) {
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// Replace the prototype getter with a local array property
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if (!this.hasOwnProperty('colors')) {
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Object.defineProperty( this, "colors", { value: [], writable: true } );
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} else {
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this.colors = [];
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}
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// If the attribute buffer has already been populated, set up proxy objects
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this.populateProxyFromBuffer(this.colors, "color", THREE.ProxyColor, 3);
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// If values were passed in, store them in the buffer via the proxy objects
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if (values) {
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for (var i = 0; i < values.length; i ++) {
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this.colors[i].copy(values[i]);
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}
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}
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// Return a reference to the newly-created array
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return this.colors;
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}
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THREE.ProxyGeometry.prototype.populateProxyFromBuffer = function(attr, buffername, proxytype, itemsize, offset, count) {
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if ( this.attributes[ buffername ] && this.attributes[ buffername ].array ) {
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var array = this.attributes[ buffername ].array;
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var size = itemsize || this.attributes[ buffername ].itemSize;
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var start = offset || 0;
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count = count || (array.length / size - start);
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for ( var i = start, l = start + count; i < l; i ++ ) {
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attr.push( new proxytype( array, i * size ) );
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}
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}
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}
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/*
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* Checks for duplicate vertices with hashmap.
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* Duplicated vertices are removed
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* and faces' vertices are updated.
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*/
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THREE.ProxyGeometry.prototype.mergeVertices = function () {
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var verticesMap = {}; // Hashmap for looking up vertice by position coordinates (and making sure they are unique)
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var unique = [], changes = [];
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var v, key;
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var precisionPoints = 4; // number of decimal points, eg. 4 for epsilon of 0.0001
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var precision = Math.pow( 10, precisionPoints );
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var i,il, face;
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var indices, k, j, jl, u;
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for ( i = 0, il = this.vertices.length; i < il; i ++ ) {
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v = this.vertices[ i ];
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key = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision );
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if ( verticesMap[ key ] === undefined ) {
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verticesMap[ key ] = i;
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unique.push( this.vertices[ i ] );
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changes[ i ] = unique.length - 1;
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} else {
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//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);
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changes[ i ] = changes[ verticesMap[ key ] ];
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}
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};
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|
// 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 ];
|
|
|
|
var dupIndex = -1;
|
|
|
|
// 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 ] ) {
|
|
|
|
dupIndex = n;
|
|
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;
|
|
|
|
}
|
|
|
|
THREE.ProxyGeometry.prototype.onGeometryAllocate = function (ev) {
|
|
|
|
// Prevent allocate event listener from firing multiple times
|
|
this.removeEventListener( 'allocate', this.onGeometryAllocate);
|
|
|
|
if (this.hasOwnProperty('vertices')) {
|
|
var attr = new THREE.Float32Attribute(this.vertices.length, 3);
|
|
this.addAttribute('position', attr);
|
|
this.createVertexProxies(this.vertices);
|
|
}
|
|
if (this.hasOwnProperty('faces')) {
|
|
var idxattr = new THREE.Uint16Attribute(this.faces.length, 3);
|
|
this.addAttribute('index', idxattr);
|
|
|
|
if (this.faces.length > 0) {
|
|
var hasnormals = (this.hasOwnProperty('normals') || this.faces[0].normal || this.faces[0].vertexNormals.length > 0);
|
|
var hascolors = (this.hasOwnProperty('colors') || this.faces[0].color || this.faces[0].vertexColors.length > 0);
|
|
var hastangents = (this.faces[0].vertexTangents.length > 0);
|
|
|
|
if (hasnormals) {
|
|
var normalattr = new THREE.Float32Attribute(this.vertices.length, 3);
|
|
this.addAttribute('normal', normalattr);
|
|
}
|
|
|
|
if (hascolors) {
|
|
var colorattr = new THREE.Float32Attribute(this.faces.length * 3, 3);
|
|
this.addAttribute('color', colorattr);
|
|
}
|
|
|
|
if (hastangents) {
|
|
var tangentattr = new THREE.Float32Attribute(this.faces.length * 3, 3);
|
|
this.addAttribute('tangent', tangentattr);
|
|
}
|
|
}
|
|
|
|
this.createFaceProxies(this.faces);
|
|
}
|
|
|
|
if (this.hasOwnProperty('faceVertexUvs')) {
|
|
|
|
var uvattr = new THREE.Float32Attribute(this.faces.length * 3, 2);
|
|
this.addAttribute('uv', uvattr);
|
|
this.createUvProxies(this.faceVertexUvs[0]);
|
|
|
|
}
|
|
|
|
if (this.hasOwnProperty('skinIndices')) {
|
|
|
|
var skinidxattr = new THREE.Float32Attribute(this.skinIndices.length, 4);
|
|
this.addAttribute('skinIndex', skinidxattr);
|
|
this.createSkinIndexProxies(this.skinIndices);
|
|
|
|
}
|
|
|
|
if (this.hasOwnProperty('skinWeights')) {
|
|
|
|
var skinweightattr = new THREE.Float32Attribute(this.skinWeights.length, 4);
|
|
this.addAttribute('skinWeight', skinweightattr);
|
|
this.createSkinWeightProxies(this.skinWeights);
|
|
|
|
}
|
|
}
|
|
|
|
THREE.ProxyGeometry.prototype.computeFaceNormals = function() {
|
|
|
|
this.dispatchEvent( { type: 'allocate' } );
|
|
|
|
return THREE.BufferGeometry.prototype.computeFaceNormals.call(this);
|
|
|
|
}
|
|
|
|
THREE.ProxyGeometry.prototype.computeVertexNormals = function() {
|
|
|
|
this.dispatchEvent( { type: 'allocate' } );
|
|
|
|
return THREE.BufferGeometry.prototype.computeVertexNormals.call(this);
|
|
|
|
}
|
|
|
|
THREE.ProxyGeometry.prototype.computeTangents = function() {
|
|
|
|
this.dispatchEvent( { type: 'allocate' } );
|
|
|
|
var ret = THREE.BufferGeometry.prototype.computeTangents.call(this);
|
|
|
|
// FIXME - this doesn't work yet
|
|
//this.createFaceVertexTangentProxies();
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
THREE.ProxyGeometry.prototype.computeBoundingSphere = function() {
|
|
|
|
this.dispatchEvent( { type: 'allocate' } );
|
|
|
|
return THREE.BufferGeometry.prototype.computeBoundingSphere.call(this);
|
|
|
|
}
|
|
|
|
THREE.ProxyGeometry.prototype.computeBoundingBox = function () {
|
|
|
|
this.dispatchEvent( { type: 'allocate' } );
|
|
|
|
return THREE.BufferGeometry.prototype.computeBoundingBox.call(this);
|
|
|
|
}
|
|
THREE.ProxyGeometry.prototype.clone = function () {
|
|
|
|
var buff = THREE.BufferGeometry.prototype.clone.call(this);
|
|
var geo = new THREE.ProxyGeometry();
|
|
geo.attributes = buff.attributes;
|
|
geo.offsets = buff.offsets;
|
|
|
|
return geo;
|
|
|
|
}
|
|
|
|
THREE.EventDispatcher.prototype.apply( THREE.ProxyGeometry.prototype );
|
|
|
|
THREE.ProxyGeometryIdCount = 0;
|