Cannot read property 'rotation' of undefined : Three.js error

Question

I have a problem reported by the console of Google Chrome. I am on Ubuntu 12.04. The problem in the console is :

    Uncaught TypeError: Cannot read property 'rotation' of undefined

(reported five times).

And I can modify the position without problem in the function init() with these lines :

object.position.y = 0;

Also, I declare my variable object as a global variable.

I create a scene by importing an object (obj +mtl) with THREE.OBJMTLLoader(). And then for animate my object I do :

    object.rotation.y += 0.01;

The problem comes from the previous declaration. It's weird because it's working but I have this problem in the console. Do you know what could I do to fix it?

Thank you for your answers.

WestLangley · Accepted Answer · 2013-06-19 15:06:16Z

5

Loading is asynchronous. You are likely calling animate() before the object is fully loaded.

Put the animate() call in the loader callback.

Or alternatively, add the object to the scene in the loader callback.

See https://github.com/mrdoob/three.js/blob/master/examples/webgl_loader_obj_mtl.html.

answered Jun 19, 2013 at 15:06

WestLangley

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