/// <summary>
/// Evaluate noise
/// </summary>
/// <param name="p">point</param>
/// <returns>function value</returns>
public double Eval(Point3 p)
{
var result = 0.0;
foreach (var m in mult)
{
result += m * ImprovedNoise.noise(p.x, p.y, p.z);
p = p * 2;
}
var r = (result / sum + 1) / 2;
return(r);
}
/// <summary>
/// Evaluate noise
/// </summary>
/// <param name="p">point</param>
/// <returns>function value</returns>
public Vector3 Eval(Point3 p)
{
double x = 0.0, y = 0.0, z = 0.0;
foreach (var m in mult)
{
x += m * ImprovedNoise.noise(p.x, p.y, p.z);
y += m * ImprovedNoise.noise(p.z, p.x, p.y);
z += m * ImprovedNoise.noise(p.y, p.z, p.x);
p = p * 2;
}
var v = new Vector3(x, y, z);
return(v);
}
/// <summary>
/// Rectified perlin noise
/// </summary>
/// <param name="p"></param>
/// <returns>function value</returns>
public static double PerlinRidged(Point3 p)
{
var r = ImprovedNoise.noise(p.x, p.y, p.z);
return(Math.Abs(r));
}
/// <summary>
/// Basic perlin noise
/// </summary>
/// <param name="p"></param>
/// <returns>function value</returns>
public static double Perlin(Point3 p)
{
var r = ImprovedNoise.noise(p.x, p.y, p.z);
return(r / 2 + 0.5);
}
/// <summary>
/// Good old Perlin noise
/// </summary>
/// <param name="p">point</param>
/// <returns>function value</returns>
public static Vector3 Perlin(Point3 p)
{
return(ImprovedNoise.noiseVector(p.x, p.y, p.z));
}