private void Start()
{
noise = new Perlin(1, 2, .5, 8, 0, QualityMode.High);
generator = new TerrainGenerator(size, resolution);
generator.ComputeTexture((x, y) => {
return(noise.GetValue(x, y, 0));
});
GetComponent <MeshRenderer>().material.SetTexture("_MainTex", generator.height);
GetComponent <MeshRenderer>().material.SetTexture("_BumpMap", generator.normal);
GetComponent <MeshRenderer>().material.SetTexture("_ParallaxMap", generator.height);
GetComponent <MeshRenderer>().material.EnableKeyword("_NORMALMAP");
}