(createMeshMaterial({ color: 0xff0000 }));
        meshMaterials.push(createMeshMaterial({ color: 0x00ff00 }));
        meshMaterials.push(createMeshMaterial({ color: 0x0000ff }));
        meshMaterials.push(createMeshMaterial({ color: 0xffff00 }));
        meshMaterials.push(createMeshMaterial({ color: 0x00ffff }));
        meshMaterials.push(createMeshMaterial({ color: 0xff00ff }));
      } else {
        // if the mesh is not visible, set the blending so the mesh "punches"
        // out vr content behin