/// <summary>
///
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
public Vec2d GradientAt(Vec2d point)
{
ToNoiseSpace(ref point);
var g = SimplexNoise.GradientAt(point.X, point.Y);
g.X *= _txInv;
g.Y *= _tyInv;
return(g);
}
/// <summary>
///
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
public Vec2d GradientAt(Vec2d point)
{
return(SimplexNoise.GradientAt(point.X * ScaleX, point.Y * ScaleY));
}
/// <summary>
///
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
public Vec3d GradientAt(Vec3d point)
{
return(SimplexNoise.GradientAt(point.X * ScaleX, point.Y * ScaleY, point.Z * ScaleZ));
}