How can I implement BoxHelper on an Object3D containing children in Three.js?

I am exploring the possibility of using the THREE.BoxHelper to generate a bounding box for an Object3D that has children. My goal is to render a wireframe bounding box for the object while omitting diagonals on the box's faces. Upon inspecting the source code for BoxHelper, it appears that it does not factor in the object's children, posing an issue for my application as every object includes children.

Is there a method to have the BoxHelper incorporate the object's children? Alternatively, is there an effective approach to utilizing the BoundingBoxHelper (which accounts for children) and displaying it without diagonals?

javascriptthree.js

Answer №1

To create a THREE.BoxHelper for an object with children, follow this guide:

// create box helper   
boxHelper = new THREE.BoxHelper( parent );
boxHelper.material.color.set( 0xffffff );
scene.add( boxHelper );

To ensure it updates in your render loop, include the following code:

boxHelper.update();

This applies to three.js r.85

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