public override double Evaluate(double x)
{
double controlValue = Control.Evaluate(x);
if (controlValue < (LowerBound - EdgeFalloff))
{
return(Source0.Evaluate(x));
}
else if (controlValue < (LowerBound + EdgeFalloff))
{
double lowerCurve = LowerBound - EdgeFalloff;
double upperCurve = LowerBound + EdgeFalloff;
double alpha = (controlValue - lowerCurve) / (upperCurve - lowerCurve);
return(Functions.SmoothStep(
Source0.Evaluate(x), Source1.Evaluate(x), alpha));
}
else if (controlValue < (UpperBound - EdgeFalloff))
{
return(Source1.Evaluate(x));
}
else if (controlValue < (UpperBound + EdgeFalloff))
{
double lowerCurve = UpperBound - EdgeFalloff;
double upperCurve = UpperBound + EdgeFalloff;
double alpha = (controlValue - lowerCurve) / (upperCurve - lowerCurve);
return(Functions.SmoothStep(
Source1.Evaluate(x), Source0.Evaluate(x), alpha));
}
else
{
return(Source0.Evaluate(x));
}
}
public override double Evaluate(double x, double y)
{
double controlValue = Control.Evaluate(x, y);
if (controlValue < (LowerBound - EdgeFalloff))
{
return(Source0.Evaluate(x, y));
}
else if (controlValue < (LowerBound + EdgeFalloff))
{
double lowerCurve = LowerBound - EdgeFalloff;
double upperCurve = LowerBound + EdgeFalloff;
double alpha = (controlValue - lowerCurve) / (upperCurve - lowerCurve);
return(Numerics.Functions.Lerp(
Source0.Evaluate(x, y), Source1.Evaluate(x, y), alpha));
}
else if (controlValue <= (UpperBound - EdgeFalloff))
{
return(Source1.Evaluate(x, y));
}
else if (controlValue <= (UpperBound + EdgeFalloff))
{
double lowerCurve = UpperBound - EdgeFalloff;
double upperCurve = UpperBound + EdgeFalloff;
double alpha = (controlValue - lowerCurve) / (upperCurve - lowerCurve);
return(Numerics.Functions.Lerp(
Source1.Evaluate(x, y), Source0.Evaluate(x, y), alpha));
}
else
{
return(Source0.Evaluate(x, y));
}
}
public override double Evaluate(double x, double y, double z, double w, double v, double u)
{
double controlValue = Control.Evaluate(x, y, z, w, v, u);
if (controlValue < (LowerBound - EdgeFalloff))
{
return(Source0.Evaluate(x, y, z, w, v, u));
}
else if (controlValue < (LowerBound + EdgeFalloff))
{
double lowerCurve = LowerBound - EdgeFalloff;
double upperCurve = LowerBound + EdgeFalloff;
double alpha = (controlValue - lowerCurve) / (upperCurve - lowerCurve);
return(Numerics.Functions.SmoothStep(
Source0.Evaluate(x, y, z, w, v, u), Source1.Evaluate(x, y, z, w, v, u), alpha));
}
else if (controlValue < (UpperBound - EdgeFalloff))
{
return(Source1.Evaluate(x, y, z, w, v, u));
}
else if (controlValue < (UpperBound + EdgeFalloff))
{
double lowerCurve = UpperBound - EdgeFalloff;
double upperCurve = UpperBound + EdgeFalloff;
double alpha = (controlValue - lowerCurve) / (upperCurve - lowerCurve);
return(Numerics.Functions.SmoothStep(
Source1.Evaluate(x, y, z, w, v, u), Source0.Evaluate(x, y, z, w, v, u), alpha));
}
else
{
return(Source0.Evaluate(x, y, z, w, v, u));
}
}
/// <summary>
/// Retrieve noise value
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="z"></param>
/// <returns></returns>
public override double GetValue(double x, double y, double z)
{
double val = Source0.GetValue(x, y, z);
val *= val > Center ? AboveCenterScale : BelowCenterScale;
return(val + Bias);
}
/// <summary>
/// Retrieve noise value
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="z"></param>
/// <returns></returns>
public override double GetValue(double x, double y, double z)
{
x = Left ? (int)Math.Floor(x) << Amount : (int)Math.Floor(x) >> Amount;
y = Left ? (int)Math.Floor(y) << Amount : (int)Math.Floor(y) >> Amount;
z = Left ? (int)Math.Floor(z) << Amount : (int)Math.Floor(z) >> Amount;
return(Source0.GetValue(x, y, z));
}
/// <summary>
/// Perform blur.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="z"></param>
/// <returns></returns>
public override double GetValue(double x, double y, double z)
{
var self = Source0.GetValue(x, y, z);
double distance = Distance;
return((
self +
Source0.GetValue(x, y, z + distance) +
Source0.GetValue(x, y, z - distance) +
Source0.GetValue(x + distance, y, z) +
Source0.GetValue(x - distance, y, z)
) / 5d);
}
/// <summary>
/// Detect transitions in source map.
/// </summary>
/// <returns>Progressively higher values (-1 < value < 1) as source transitions starting at Distance.</returns>
public override double GetValue(double x, double y, double z)
{
var self = Source0.GetValue(x, y, z);
double distance = Distance;
var res = (
(Source0.GetValue(x, y, z + distance) == self ? -1d : 1d) +
(Source0.GetValue(x, y, z - distance) == self ? -1d : 1d) +
(Source0.GetValue(x + distance, y, z) == self ? -1d : 1d) +
(Source0.GetValue(x - distance, y, z) == self ? -1d : 1d)
) / 4d; // Get average
return(res);
}
public override double GetValue(double x, double y, double z)
{
return(Source0.GetValue(x / Amount, y / Amount, z / Amount));
}
public override double GetValue(double x, double y, double z)
{
return(Source0.GetValue(x, y, z) > Center ? 1 : -1);
}
