小编Cla*_*ang的帖子

我想在多线程中使用threeJS的dracoLoader,然后我选择了Webworker和IndexedDB.我在webworker中获得了正确的Geometry,但是,当我使用IndexedDB将数据传递给主线程时,几何体将更改为普通的JS对象而不是ThreeJS Geometry.几何失去了它的功能和一些信息.

webworker.js

self.saveDrcToIndexedDB = function (drcfinal) {

  var db;
  var request = indexedDB.open("drcDB");

  drcfinal.indexName = self.randomStr();

  request.onupgradeneeded = function(event) {

    console.log('successfully upgraded db');  

    db = event.target.result;
    var objectStore = db.createObjectStore("drcfinal", { keyPath: "indexName"});
  };

  request.onsuccess = function(event) {

    console.log('successfully opened db');

    db = event.target.result;
    var transaction = db.transaction(["drcfinal"], "readwrite");

    var objectStore = transaction.objectStore("drcfinal");
    objectStore.add(drcfinal).onsuccess = function(event) {
      self.postMessage(drcfinal.indexName);
    };
  } 
}

main.js

var worker = new Worker('webworker.js');

worker.addEventListener('message', function(e) {

  indexedDB.open("drcDB").onsuccess = function(event) {

    let db = event.target.result;   
    let …