Skip layer updates for layerless nodes

    // updated in the order they're passed in (mLayerBuilders are issued to Renderer in reverse)

    for (int i = layers.entries().size() - 1; i >= 0; i--) {

        RenderNode* layerNode = layers.entries()[i].renderNode;

        // only schedule repaint if node still on layer - possible it may have been

        // removed during a dropped frame, but layers may still remain scheduled so

        // as not to lose info on what portion is damaged

        if (CC_LIKELY(layerNode->getLayer() != nullptr)) {

            const Rect& layerDamage = layers.entries()[i].damage;

            layerNode->computeOrdering();

            }

            restoreForLayer();

        }

    }

    // Defer Fbo0

    for (const sp<RenderNode>& node : nodes) {