static void Main(string[] args)
{
Perlin2D perlinEng = new Perlin2D();
float[,] PMap = perlinEng.GetNormalMap(ImgRes);
OctavePerlin octPerlin = new OctavePerlin(0.5f, 2f);
float[,] OMap = octPerlin.GetNormalOctavePerlin(6, ImgRes, 3);
SaveNormalMapAsImage(PMap, ImgRes, "PerlinMap");
SaveNormalMapAsImage(OMap, ImgRes, "OctavePerlinMap");
}
public float[,] GetNormalOctavePerlin(int Octaves, int Res, int StartingPerlinRes)
{
float[,] Output = new float[Res, Res];
float OctaveRes = StartingPerlinRes;
float Intensity = 1;
float min = float.MaxValue;
float max = float.MinValue;
for (int Oc = 0; Oc < Octaves; Oc++)
{
Perlin2D p = new Perlin2D((int)OctaveRes, Seed);
float[,] OctaveMap = p.GetNormalMap(Res);
for (int i = 0; i < Res; i++)
{
for (int j = 0; j < Res; j++)
{
Output[i, j] += ((OctaveMap[i, j] * 2) - 1) * Intensity;
min = min < Output[i, j] ? min : Output[i, j];
max = max > Output[i, j] ? max : Output[i, j];
}
}
OctaveRes *= Lacunarity;
Intensity *= Persistence;
}
//Normalise
float Difference = max - min;
float Ratio = 1 / Difference;
for (int x = 0; x < Res; x++)
{
for (int y = 0; y < Res; y++)
{
Output[x, y] -= min;
Output[x, y] *= Ratio;
}
}
return(Output);
}