I had the issue that some of my OBJ-files weren't loaded by the OBJLoader provided in the examples. Parsing the file crashed with this exception:

Uncaught TypeError: Cannot read property 'x' of undefined Three.js:13
THREE.Vector3.addSelf (Three.js:13)
THREE.Geometry.computeCentroids (Three.js:91)
THREE.OBJLoader.parse (OBJLoader.js:295)
xhr.onreadystatechange (OBJLoader.js:21)

I traced the error to the OBJLoader and my OBJ files. The obj files were exported by 3ds Max Wavefront OBJ Exporter and slightly differ in format:

Where the loader expected:
v 0.4500 1.5256 0.6595

they were:
v  0.4500 1.5256 0.6595

Note the extra space. This threw off the regular expressions, the vertices weren't parsed and the computeCentroid failed. This commit changes the regular impression to accomodate this variance.

Tomorrow Geometries and CanvasRenderer.

Using xhr.addEventListener instead of xhr.onreadystatechange. Changed 'complete' event to 'load' as native JavaScript.

The only confusing part of this approach is the event object that gets dispatched. For ImageLoader you need to look for event.image, and for OBJLoader you need to look for event.object. Maybe it should be consistent for all and just be event.content?

As per discussion here in ee946579

Starting to get complicated ^^

Ok, I'm starting to see the trickiness of the format :) Reusing vertices array by now.

I don't know if the splitting is really needed. Will add back if it is.