pl.setColor(new ColorRGBA(0.88f, 0.92f, 0.95f, 1.0f));
rootNode.addLight(pl);
// sunset light
DirectionalLight dl = new DirectionalLight();
dl.setDirection(new Vector3f(-0.1f,-0.7f,1).normalizeLocal());
dl.setColor(new ColorRGBA(0.44f, 0.30f, 0.20f, 1.0f));
rootNode.addLight(dl);
// skylight
dl = new DirectionalLight();
dl.setDirection(new Vector3f(-0.6f,-1,-0.6f).normalizeLocal());
dl.setColor(new ColorRGBA(0.10f, 0.22f, 0.44f, 1.0f));
rootNode.addLight(dl);
// white ambient light
dl = new DirectionalLight();
dl.setDirection(new Vector3f(1, -0.5f,-0.1f).normalizeLocal());
dl.setColor(new ColorRGBA(0.50f, 0.40f, 0.50f, 1.0f));
rootNode.addLight(dl);
rootNode.attachChild(GrassLayerUtil.createPatchField(bumpy, assetManager, "/vegetation/grass/grass/g3.tga",
1.2f, 1.5f, 1f, 0.1f, 0f,0f,0.0f,0,1));