private void loadModel() {
        Node jaime = (Node) assetManager.loadModel("Models/Jaime/Jaime.j3o");
        AnimMigrationUtils.migrate(jaime);
        jaime.scale(3f);
        rootNode.attachChild(jaime);
    }
Demonstrates how to render a non-moving background image using a pre
ViewPort.

@author Stephen Gold sgold@sonic.net
jme3-examples/src/main/java/jme3test/renderer/TestBackgroundImage.java