Mesh material array

[ManishJu]

For a cube I am currently using an array of MeshStandardMaterial and feeding it to the box mesh like this:

       const matBFront = new THREE.MeshStandardMaterial({
       ....
       });
       const matBLeft = new THREE.MeshStandardMaterial({
       ....
       });
        ...
        ...
        ....
   const matBox = [
           matBLeft,
           matBRight,
           matBBottom,
           matBTop,
           matBFront,
           matBBack
       ];

       const boxObject =  new THREE.Mesh(geomBComplete, matBox);

This works in threejs but not when the raytracing renderer is turned on. The object just disappears. What is the best way to approach this problem ?
Thanks!

[jaxry]

The ray tracing renderer only expects a single material for each mesh. I didn't even know an array of materials was possible in Three.js!

https://threejs.org/docs/#api/en/objects/Mesh
I'm looking at the documentation here and I see it can accepts an array. But what does an array of materials do exactly?

[bitores]

Duplicate of #241