Avoid multiple loading of same mesh (long operation)
This commit is contained in:
Thomas FORGIONE
parent
412f413e96
commit
09f6c2028f
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@ -0,0 +1,169 @@
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var fs = require('fs');
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var mesh = require('./Mesh.js');
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/**
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* @namespace
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*/
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var cont = {};
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/**
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* Represents a mesh. All meshes are loaded once in cont.availableMesh to avoid
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* loading at each mesh request
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* @constructor
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* @memberOf cont
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*/
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cont.MeshContainer = function(path) {
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/**
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* array of each part of the mesh
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* @type {mesh.Mesh[]}
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*/
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this.meshes = [];
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/**
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* array of the vertices of the meshes (all merged)
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* @type {mesh.Vertex[]}
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*/
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this.vertices = [];
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/**
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* array of the faces of the meshes (all merged)
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* @type {mesh.Face[]}
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*/
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this.faces = [];
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/**
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* array of the normals of the meshes (all merged)
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* @type {mesh.Normal[]}
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*/
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this.normals = [];
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/**
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* array of the texture coordinates (all merged)
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* @type {mesh.TexCoord[]}
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*/
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this.texCoords = [];
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if (path !== undefined) {
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this.loadFromFile(path);
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}
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}
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/**
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* Loads a obj file
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* @param {string} path the path to the file
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*/
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cont.MeshContainer.prototype.loadFromFile = function(path) {
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var self = this;
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var data = fs.readFileSync(path, {encoding: 'utf-8'});
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var currentMesh;
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// Get lines from file
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var lines = data.toString('utf-8').split("\n");
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// For each line
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for (var i = 0; i < lines.length; i++) {
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var line = lines[i];
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if (line[0] === 'v') {
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if (line[1] === 't') {
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// Texture coord
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var texCoord = new mesh.TexCoord(line);
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texCoord.index = self.texCoords.length;
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self.texCoords.push(texCoord);
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} else if (line[1] === 'n') {
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var normal = new mesh.Normal(line);
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normal.index = self.normals.length;
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self.normals.push(normal);
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} else {
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// Just a simple vertex
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// if (currentMesh === undefined) {
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// // Chances are that we won't use any material in this case
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// currentMesh = new mesh.Mesh();
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// self.meshes.push(currentMesh);
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// }
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var vertex = new mesh.Vertex(line);
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vertex.index = self.vertices.length;
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self.vertices.push(vertex);
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}
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} else if (line[0] === 'f') {
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// Create mesh if it doesn't exist
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if (currentMesh === undefined) {
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currentMesh = new mesh.Mesh();
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self.meshes.push(currentMesh);
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}
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// Create faces (two if Face4)
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var faces = currentMesh.addFaces(line);
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faces[0].index = self.faces.length;
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faces[0].meshIndex = self.meshes.length - 1;
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self.faces.push(faces[0]);
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if (faces.length === 2) {
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faces[1].index = self.faces.length;
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faces[1].meshIndex = self.meshes.length - 1;
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self.faces.push(faces[1]);
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}
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} else if (line[0] === 'u') {
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// usemtl
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// If a current mesh exists, finish it
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// Create a new mesh
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currentMesh = new mesh.Mesh();
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self.meshes.push(currentMesh);
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currentMesh.material = (new mesh.Material(line)).name;
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// console.log(currentMesh.material);
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}
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}
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}
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var availableMeshNames = [
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'/static/data/castle/princess peaches castle (outside).obj',
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'/static/data/mountain/coocoolmountain.obj',
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'/static/data/whomp/Whomps Fortress.obj',
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'/static/data/bobomb/bobomb battlefeild.obj',
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'/static/data/sponza/sponza.obj'
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];
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for (var i = 1; i < 26; i++) {
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availableMeshNames.push('/static/data/spheres/' + i + '.obj');
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}
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cont.availableMeshes = {};
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for (var i = 0; i < availableMeshNames.length; i++) {
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var name = availableMeshNames[i];
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cont.availableMeshes[name] = new cont.MeshContainer(name.substring(1, name.length));
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}
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module.exports = cont;
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@ -1,5 +1,6 @@
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var fs = require('fs');
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var mesh = require('./Mesh.js');
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var cont = require('./MeshContainer.js');
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/**
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* @namespace
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@ -52,45 +53,33 @@ function partialSort(items, k, comparator) {
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* @memberOf geo
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* @constructor
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* @param {string} path to the mesh
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* @param {function} callback to execute when the mesh streamer is loaded
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*/
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geo.MeshStreamer = function(path, callback) {
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/**
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* array of each part of the mesh
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* @type {mesh.Mesh[]}
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*/
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this.meshes = [];
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geo.MeshStreamer = function(path) {
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/**
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* array of the vertices of the meshes (all merged)
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* @type {mesh.Vertex[]}
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* array of booleans telling if the ith vertex has already been sent
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* @type {Boolean[]}
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*/
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this.vertices = [];
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/**
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* array of the faces of the meshes (all merged)
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* @type {mesh.Face[]}
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* array of booleans telling if the ith face has already been sent
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* @type {Boolean[]}
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*/
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this.faces = [];
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/**
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* array of the normals of the meshes (all merged)
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* @type {mesh.Normal[]}
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* array of booleans telling if the ith normal has already been sent
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* @type {Boolean[]}
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*/
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this.normals = [];
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/**
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* array of the texture coordinates (all merged)
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* @type {mesh.TexCoord[]}
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* array of booleans telling if the ith texCoord has already been sent
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* @type {Boolean[]}
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*/
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this.texCoords = [];
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/**
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* array of the faces in a nice order for sending
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* @type {mesh.Face[]}
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*/
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this.orderedFaces = [];
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/**
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* Number of element to send by packet
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* @type {Number}
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@ -98,13 +87,11 @@ geo.MeshStreamer = function(path, callback) {
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this.chunk = 1000;
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if (path !== undefined) {
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var self = this;
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this.loadFromFile(path, function() {
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if (typeof callback === 'function')
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callback();
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});
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this.mesh = cont.availableMeshes[path];
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}
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}
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/**
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@ -183,108 +170,6 @@ geo.MeshStreamer.prototype.faceComparator = function(camera) {
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}
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}
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/**
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* Loads a obj file
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* @param {string} path the path to the file
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* @param {function} callback the callback to call when the mesh is loaded
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*/
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geo.MeshStreamer.prototype.loadFromFile = function(path, callback) {
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var self = this;
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fs.readFile(path, function(err, data) {
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var oldTime = Date.now();
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var currentMesh;
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// Get lines from file
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var lines = data.toString('utf-8').split("\n");
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// For each line
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for (var i = 0; i < lines.length; i++) {
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var line = lines[i];
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if (line[0] === 'v') {
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if (line[1] === 't') {
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// Texture coord
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var texCoord = new mesh.TexCoord(line);
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texCoord.index = self.texCoords.length;
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self.texCoords.push(texCoord);
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} else if (line[1] === 'n') {
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var normal = new mesh.Normal(line);
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normal.index = self.normals.length;
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self.normals.push(normal);
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} else {
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// Just a simple vertex
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// if (currentMesh === undefined) {
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// // Chances are that we won't use any material in this case
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// currentMesh = new mesh.Mesh();
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// self.meshes.push(currentMesh);
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// }
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var vertex = new mesh.Vertex(line);
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vertex.index = self.vertices.length;
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self.vertices.push(vertex);
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}
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} else if (line[0] === 'f') {
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// Create mesh if it doesn't exist
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if (currentMesh === undefined) {
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currentMesh = new mesh.Mesh();
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self.meshes.push(currentMesh);
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}
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// Create faces (two if Face4)
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var faces = currentMesh.addFaces(line);
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faces[0].index = self.faces.length;
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faces[0].meshIndex = self.meshes.length - 1;
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self.faces.push(faces[0]);
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self.orderedFaces.push(faces[0]);
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if (faces.length === 2) {
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faces[1].index = self.faces.length;
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faces[1].meshIndex = self.meshes.length - 1;
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self.faces.push(faces[1]);
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self.orderedFaces.push(faces[1]);
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}
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} else if (line[0] === 'u') {
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// usemtl
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// If a current mesh exists, finish it
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// Create a new mesh
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currentMesh = new mesh.Mesh();
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self.meshes.push(currentMesh);
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currentMesh.material = (new mesh.Material(line)).name;
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// console.log(currentMesh.material);
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}
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}
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if (typeof callback === 'function') {
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callback();
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}
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console.log(Date.now() - oldTime);
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});
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}
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/**
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* Initialize the socket.io callback
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* @param {socket} socket the socket to initialize
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@ -299,6 +184,8 @@ geo.MeshStreamer.prototype.start = function(socket) {
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socket.on('request', function(path) {
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console.log('Asking for ' + path);
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self.mesh = cont.availableMeshes[path];
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var regex = /.*\.\..*/;
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var filePath = path.substring(1, path.length);
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@ -308,9 +195,7 @@ geo.MeshStreamer.prototype.start = function(socket) {
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return;
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}
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self.loadFromFile(filePath, function() {
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socket.emit('ok');
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});
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});
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@ -355,9 +240,9 @@ geo.MeshStreamer.prototype.nextMaterials = function() {
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var data = [];
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for (var i = 0; i < this.meshes.length; i++) {
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for (var i = 0; i < this.mesh.meshes.length; i++) {
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var currentMesh = this.meshes[i];
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var currentMesh = this.mesh.meshes[i];
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// Send usemtl
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data.push([
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@ -365,8 +250,8 @@ geo.MeshStreamer.prototype.nextMaterials = function() {
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currentMesh.material,
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currentMesh.vertices.length,
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currentMesh.faces.length,
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this.texCoords.length > 0,
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this.normals.length > 0
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this.mesh.texCoords.length > 0,
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this.mesh.normals.length > 0
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]);
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}
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@ -437,9 +322,9 @@ geo.MeshStreamer.prototype.nextElements = function(_camera, force) {
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// Sort faces
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var mightBeCompletetlyFinished = true;
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for (var meshIndex = 0; meshIndex < this.meshes.length; meshIndex++) {
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for (var meshIndex = 0; meshIndex < this.mesh.meshes.length; meshIndex++) {
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var currentMesh = this.meshes[meshIndex];
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var currentMesh = this.mesh.meshes[meshIndex];
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if (currentMesh.isFinished()) {
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@ -461,9 +346,9 @@ geo.MeshStreamer.prototype.nextElements = function(_camera, force) {
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}
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var vertex1 = this.vertices[currentFace.a];
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var vertex2 = this.vertices[currentFace.b];
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var vertex3 = this.vertices[currentFace.c];
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var vertex1 = this.mesh.vertices[currentFace.a];
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var vertex2 = this.mesh.vertices[currentFace.b];
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var vertex3 = this.mesh.vertices[currentFace.c];
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// if (camera !== null) {
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@ -534,82 +419,82 @@ geo.MeshStreamer.prototype.nextElements = function(_camera, force) {
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}
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if (!vertex1.sent) {
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if (!this.vertices[currentFace.a]) {
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data.push(vertex1.toList());
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vertex1.sent = true;
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this.vertices[currentFace.a] = true;
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sent++;
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}
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if (!vertex2.sent) {
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if (!this.vertices[currentFace.b]) {
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data.push(vertex2.toList());
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vertex2.sent = true;
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this.vertices[currentFace.b] = true;
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sent++;
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}
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if (!vertex3.sent) {
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if (!this.vertices[currentFace.c]) {
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data.push(vertex3.toList());
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vertex3.sent = true;
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this.vertices[currentFace.c] = true;
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sent++;
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}
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var normal1 = this.normals[currentFace.aNormal];
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var normal2 = this.normals[currentFace.bNormal];
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var normal3 = this.normals[currentFace.cNormal];
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var normal1 = this.mesh.normals[currentFace.aNormal];
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var normal2 = this.mesh.normals[currentFace.bNormal];
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var normal3 = this.mesh.normals[currentFace.cNormal];
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if (normal1 !== undefined && !normal1.sent) {
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if (normal1 !== undefined && !this.normals[currentFace.aNormal]) {
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data.push(normal1.toList());
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normal1.sent = true;
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this.normals[currentFace.aNormal] = true;
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sent++;
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}
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if (normal2 !== undefined && !normal2.sent) {
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if (normal2 !== undefined && !this.normals[currentFace.bNormal]) {
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data.push(normal2.toList());
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normal2.sent = true;
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this.normals[currentFace.bNormal] = true;
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sent++;
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}
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if (normal3 !== undefined && !normal3.sent) {
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if (normal3 !== undefined && !this.normals[currentFace.cNormal]) {
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data.push(normal3.toList());
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normal3.sent = true;
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this.normals[currentFace.cNormal] = true;
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sent++;
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}
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var tex1 = this.texCoords[currentFace.aTexture];
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var tex2 = this.texCoords[currentFace.bTexture];
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var tex3 = this.texCoords[currentFace.cTexture];
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var tex1 = this.mesh.texCoords[currentFace.aTexture];
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var tex2 = this.mesh.texCoords[currentFace.bTexture];
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var tex3 = this.mesh.texCoords[currentFace.cTexture];
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if (tex1 !== undefined && !tex1.sent) {
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if (tex1 !== undefined && !this.texCoords[currentFace.aTexture]) {
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data.push(tex1.toList());
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tex1.sent = true;
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this.texCoords[currentFace.aTexture] = true;
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sent++;
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}
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if (tex2 !== undefined && !tex2.sent) {
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if (tex2 !== undefined && !this.texCoords[currentFace.bTexture]) {
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data.push(tex2.toList());
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tex2.sent = true;
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this.texCoords[currentFace.bTexture] = true;
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sent++;
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}
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if (tex3 !== undefined && !tex3.sent) {
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if (tex3 !== undefined && !this.texCoords[currentFace.cTexture]) {
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data.push(tex3.toList());
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tex3.sent = true;
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this.texCoords[currentFace.cTexture] = true;
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sent++;
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}
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