public Terrain(int terrainSize, int levels, Camera cam) : base(name: "SaganTerrain") {
this.levels = levels;
// Add +1 to width and height of heightmap so bilinear interpolation of quad can interpolate extra data point beyond edge of quad
this.heightMap = new HeightMap(terrainSize + 1);
this.rootQuad = new Quad(1, terrainSize, terrainSize, this.heightMap);
this.cam = cam;
}
public Quad(int LOD, float size, float error, HeightMap heightMap) : base(name: "Quad") {
this.size = size;
this.LOD = LOD;
this.error = error;
this._heightMap = heightMap;
this.material = new Material(Shader.Find("Sagan/ColorHeight"));
this.material.SetFloat("_MaxHeight", this._heightMap.maxHeightValue);
this.material.SetFloat("_MinHeight", this._heightMap.minHeightValue);
}