I can load my obj model but not reference it later in my code

Questions
,
1

So thats my code. The problem Im getting is that I would like to get “model” with the “object” inside it to be able to spin my 3d model around, but I get undefined when I do console.log(model). What Im doing wrong?

var loader = new OBJLoader();

        var model

        

        loader.load( 'models/cono.obj', function ( object ) {

            

            object.name = "topota";

            object.traverse(function(child) {

                if (child instanceof THREE.Mesh){

                    child.material = material;

                    child.name = "obj";

                    model = child.clone()

                        }

                    });

                    

                    scene.add( object );

                });

        

        console.log(model)
2

The lesson to take from it, is that you should indent your code properly and keep it clean. :’)

var model; // <- 1. This happens first, it's synchronous.

loader.load( 'models/cono.obj', function ( object ) { // <- 2. Loading START happens second, it's still synchronous.
  object.name = "topota";
  object.traverse(function(child) {
    if (child instanceof THREE.Mesh){
      child.material = material;
      child.name = "obj";
      model = child.clone() // <- 4. This happens last, it's asynchronous, since it's in a callback of `loader.load`, and is executed only AFTER the model is loaded. 
    }
  });
  
  scene.add( object );
});

console.log(model); // <- 3. This happens third, it's synchronous.

While console.log can happen immediately, model = ... will happen only after the model is loaded. So basically you try to log a model that is not loaded at that point, yet.

3

Got it. So I should be able to reference the object in the code to animate it then. I Will try.

About the code… I just pasted directly from vs code… I dont know how it looks that terrible in here!!

Thanks mjurczyk

4

If you move console.log(model) a line below scene.add( object ); it should work fine. :slight_smile:

1 Like
5

Yea its working now. I understand how it works now! awesome