/* Noise helper functions. */
// added types 3,4,5,6 including stripes2, stripes3 functions(cos stripes)
private double F(double x, double y, double z, int type)
{
double w = this.Scene.DefaultCamera.ResX;
switch (type)
{
case 1:
return(.03 * PerlinNoiseFilter.Noise(x, y, z, 15));
case 2:
return(.01 * PerlinNoiseFilter.Stripes(x + 2 * PerlinNoiseFilter.Turbulence(x, y, z, w, 1), 1.6));
case 3:
return(.04 * PerlinNoiseFilter.Stripes2(x + 1.5 * PerlinNoiseFilter.Turbulence(x, y, z, w, 1), 1.6));
case 4:
return(.03 * PerlinNoiseFilter.Stripes(PerlinNoiseFilter.Noise(x, y, z, 5), 5));
case 5:
//return .05 * PerlinNoiseFilter.Turbulence(
// PerlinNoiseFilter.Noise(x, y, z, 2),
// PerlinNoiseFilter.Noise(x, y, z, 2),
// PerlinNoiseFilter.Noise(x, y, z, 2), w, 5);
//return .05 *
// PerlinNoiseFilter.Noise((float)Math.Cos(x * Math.PI), y, z, 10) *
// PerlinNoiseFilter.Noise(x, (float)Math.Cos(y * Math.PI), z, 10) *
// PerlinNoiseFilter.Noise(x, y, (float)Math.Cos(z * Math.PI), 10);
return(.03 * Math.Cos(PerlinNoiseFilter.Noise(x, y, z)));
//return .01 * PerlinNoiseFilter.Stripes(x + 2 * PerlinNoiseFilter.Turbulence(x, y, z, w, 1), 1.6);
//return 0.05 * PerlinNoiseFilter.Stripes3(x - PerlinNoiseFilter.Noise(x, y, z, 1), z - PerlinNoiseFilter.Turbulence(x, y, z, w, 1));
case 6:
return(-.10 *
PerlinNoiseFilter.Turbulence(
x - PerlinNoiseFilter.Stripes(PerlinNoiseFilter.Noise(x, y, z, 5), 5),
y - PerlinNoiseFilter.Stripes(PerlinNoiseFilter.Noise(x, y, z, 5), 5),
z - PerlinNoiseFilter.Stripes(PerlinNoiseFilter.Noise(x, y, z, 5), 5), w, 10));
case 7:
return(.04 * PerlinNoiseFilter.Stripes3(x + 2 * PerlinNoiseFilter.Turbulence(x, y, z, w, 1), 1.6));
default:
return(-.10 * PerlinNoiseFilter.Turbulence(x, y, z, w, 1));
}
}
private void TestPerlinNoise_DoubleClick(object sender, EventArgs e)
{
this.textBox1.Text = PerlinNoiseFilter.Noise(50, 50, 50).ToString();
}