public void Perturb(float f, float d)
{
int u, v;
float[,] temp = new float[Size, Size];
for (int i = 0; i < Size; ++i)
{
for (int j = 0; j < Size; ++j)
{
u = i + (int)(Perlin.Generate3D(f * i / (float)Size, f * j / (float)Size, 0) * d);
v = j + (int)(Perlin.Generate3D(f * i / (float)Size, f * j / (float)Size, 1) * d);
if (u < 0)
{
u = 0;
}
if (u >= Size)
{
u = Size - 1;
}
if (v < 0)
{
v = 0;
}
if (v >= Size)
{
v = Size - 1;
}
temp[i, j] = Heights[u, v];
}
}
Heights = temp;
}
