static SampleFunctions()
{
functions = new UtilFuncs.Sampler[6];
simplex = new SE.OpenSimplexNoise(7);
// Flat ground
functions[0] = (float x, float y, float z) => {
Debug.LogFormat("Sampling at {0} {1} {2}", x, y, z);
return(0.5f - y);
};
// Sphere
functions[1] = (float x, float y, float z) => {
Vector3 p = new Vector3(x - 0.5f, y - 0.5f, z - 0.5f);
return(Sphere(p.x, p.y, p.z, 0.25f));
};
// Simplex
functions[2] = (float x, float y, float z) => {
float r = 1132f;
return((float)simplex.Evaluate(x * r, y * r, z * r));
};
// Rotated Cuboid
functions[3] = (float x, float y, float z) => {
Vector3 p = new Vector3((x - 1.5f) * 2f, (y - 1.5f) * 2f, (z - 1.5f) * 2f);
return(RotatedCuboid(p, 0.6f));
};
// Simplex Terrain
functions[4] = (float x, float y, float z) => {
float result = y - 1.5f;
float r = 3f;
float r2 = r * 8;
result += 0.5f * (float)simplex.Evaluate(x * r, y * r, z * r);
result += 0.15f * (float)simplex.Evaluate(x * r2, y * r2, z * r2);
return(result);
};
}
private static float sample(SE.OpenSimplexNoise noise, float x, float y, float z)
{
float r = 0.2f;
float f = 0.03f;
float ms = 0.009f;
float result = 2.0f - y;
result += (float)noise.Evaluate(x * r, y * r, z * r) * 1.6f;
result += (float)noise.Evaluate(x * f, y * f, z * f) * 20f;
result += (float)noise.Evaluate(x * f, y * f, z * ms) * 50f;
return(result);
}
public static ChunkJobResult CreateChunk(ChunkJob Job)
{
ChunkJobResult result = new ChunkJobResult();
try {
Stopwatch s = new Stopwatch();
s.Start();
SE.OpenSimplexNoise noise = new SE.OpenSimplexNoise(1);
result.Error = null;
result.OriginalJob = Job;
result.DebugPrint = "";
ExtractionInput input = new ExtractionInput();
input.Isovalue = 0;
input.LODSides = Job.LOD;
input.Resolution = new Util.Vector3i(Job.Resolution, Job.Resolution, Job.Resolution);
input.Size = new Vector3(Job.CellSize, Job.CellSize, Job.CellSize);
int numTimesSampled = 0;
input.Sample = (float x, float y, float z) => {
numTimesSampled++;
float res = sample(noise, x + Job.Min.x, y + Job.Min.y, z + Job.Min.z);
return(res);
};
ExtractionResult ExResult = SurfaceExtractor.ExtractSurface(input);
result.Result = ExResult;
s.Stop();
result.ProcessingTime = s.ElapsedMilliseconds;
}
catch (System.Exception exc) {
result.Error = "Error in thread " + Job.ThreadID + ": " + exc.Message + ", Stacktrace: " + exc.StackTrace;
}
return(result);
}
