CODEWITHSUNDEEP
javascriptthree.js
SalmonKiller
SalmonKiller

Reputation: 2203

Using WireframeHelper with Loaded Objects

In my Three JS application, I downloaded some JSON files for objects from clara.io. I load them into the an object variable with THREE.ObjectLoader. I add it to the scene and everything works fine.

However, when I try to display the wireframe of the object with THREE.WireframeHelper, I get the following error:

Uncaught TypeError: Cannot read property 'array' of undefined

Apparently, the geometry of the object is undefined.

So the question is: do custom shapes loaded in this manner always have empty geometries? If no, how can I obtain an object with it's geometry "intact"?

Upvotes: 1

Views: 50

Answers (1)

WestLangley
WestLangley

Reputation: 104823

The loaded object likely has child objects and child meshes.

In your loader callback, use this pattern:

object.traverse( function( child ) {

    if ( child instanceof THREE.Mesh ) {

        var wh = new THREE.WireframeHelper( child, 0xffffff );
        scene.add( wh );

    }

} );

three.js r.73

Upvotes: 4

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