i forgot:
light:
var light:DirectionalLight3D = new DirectionalLight3D({color:0xAAFFAA,
ambient:0.2, diffuse:0.75, specular:0.1});
light.x = 10000;
light.z = -50000;
light.y = 50000;
scene.addChild(light);
materials:
pruebaMaterial=new ShadingColorMaterial(0xbbac99);
pruebaMaterial.specular=10;
pruebaMaterial
pruebaMaterial.specular_brightness=100;
action!!!:
var floor2:Plane = new Plane();
floor2.width = floor2.height = 25000;
floor2.segmentsW = floor2.segmentsH = 48;
floor2.y = -3000;
floor2.material = pruebaMaterial;
scene.addChild(floor2);