protected void setMaterials(List<Material> materials) {
        if (isTornDown()) {
            return;
        }
        mMaterials = materials;
        if (mNodeJni.getGeometry() != null) {
            mNodeJni.getGeometry().copyAndSetMaterials(materials);
        }
    }
Explicitly call setMaterials again with mMaterials. Allows children who override
setMaterials to modify them.
android/viro_bridge/src/main/java/com/viromedia/bridge/component/node/VRTNode.java