protected float[] get2DSize() {
        float[] arr = {getRight() - getLeft(), getBottom() - getTop()};
        return arr;
    }
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