/// <summary>
/// Generates a Biome at a given position
/// </summary>
/// <param name="pos">The position to sample the biome field, in world space.</param>
/// <returns>A Biome object with data about which biome inhabits this space.</returns>
public static Biome AtLocation(Vector3 pos)
{
pos /= VoxelUniverse.main.biomeScaling;
// SAMPLE 1 noisefield at 3 arbitrary locations:
Vector3 offsetR = new Vector3(123, 456, 789);
Vector3 offsetG = new Vector3(-99, 999, 300);
Vector3 offsetB = new Vector3(900, 500, -99);
float r = Noise.Sample(pos + offsetR);
float g = Noise.Sample(pos + offsetG);
float b = Noise.Sample(pos + offsetB);
// TODO: redo/improve the calculations below
// convert values from approx. (-.2 to .2) to (-1.1 to 1.1):
r *= 5.5f;
g *= 5.5f;
b *= 5.5f;
// redistribute values non-linearly:
r *= r;
g *= g;
b *= b;
// shift range from (+- 1.21) to (+- .5):
r /= 2.4f;
g /= 2.4f;
b /= 2.4f;
// shift from range from (+- .5) to (0 to 1):
r += .5f;
g += .5f;
b += .5f;
// Convert from RGB to HSV:
Color.RGBToHSV(new Color(r, g, b), out float h, out float s, out float v);
//posterize the hue value:
h = Mathf.Round(h * Biome.COUNT);
int biome_num = (int)h;
// create and return the biome:
return(Biome.FromInt(biome_num));
}