public static float[,] ValueNoiseMapGenerator(int width, int height, int seed, float noiseScale, int octaves, float persistance)
{
float[,] noiseMap = new float[width, height];
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
float valor = VoronoiNoise.FractalNoise2D(x, y, octaves, noiseScale, persistance, seed) * 2f;
noiseMap[x, y] = valor;
}
}
return(noiseMap);
}
float SampleGround(float x, float z, PerlinNoise perlin, VoronoiNoise voronoi)
{
//This creates the noise used for the ground.
//The last value (8.0f) is the amp that defines (roughly) the maximum
//and minimum vaule the ground varies from the surface level
//return perlin.FractalNoise2D(x, z, 12, 80.0f, 8.0f);
test = voronoi.FractalNoise2D(x, z, 8, 32.0f, 8.0f) + perlin.FractalNoise2D(x, z, 12, 80.0f, 8.0f)/2;
if(test > 1.85f)
{
return Mathf.Min (1.85f, test) + test/3f;
}
else
{
return test;
}
//return Mathf.Min (2.75f,test);
}
public void CreateVoxels(PerlinNoise surfacePerlin, PerlinNoise cavePerlin)
{
//float startTime = Time.realtimeSinceStartup;
//Creates the data the mesh is created form. Fills m_voxels with values between -1 and 1 where
//-1 is a soild voxel and 1 is a empty voxel.
int w = m_voxels.GetLength(0);
int h = m_voxels.GetLength(1);
int l = m_voxels.GetLength(2);
for (int x = 0; x < w; x++)
{
for (int z = 0; z < l; z++)
{
//world pos is the voxels position plus the voxel chunks position
float worldX = x + m_pos.x;
float worldZ = z + m_pos.z;
float ht = SampleGround(worldX, worldZ, surfacePerlin);
// float localBiom = 0f;
// localBiom += (float)z/h * ((float)m_neighbourBiomes[2] - (float)m_biome);
// localBiom += (float)x/w * ((float)m_neighbourBiomes[1] - (float)m_biome);
// localBiom += (1f-(float)z/h) * ((float)m_neighbourBiomes[0]- (float)m_biome);
// localBiom += (1f-(float)x/w) * ((float)m_neighbourBiomes[3]- (float)m_biome);
// float factor = Mathf.Clamp01((surfacePerlin.FractalNoise2D(x, z, 4, 400.0f, 1.0f) + 0.75f)/1.5f);
// float it = ht + SampleIslands(worldX, worldZ, surfacePerlin);
// ht = (ht+m_surfaceLevel+1f) * factor + it * (1f-factor);
// float factor = Mathf.Clamp01((surfacePerlin.FractalNoise2D(x, z, 4, 400.0f, 1.5f) + 0.75f)/1.5f);
// float it = ht + SampleSpikes(worldX, worldZ, surfacePerlin);
// ht = it; //(ht-1f) * factor + it * (1f-factor);
/*
* float factor = Mathf.Clamp01((surfacePerlin.FractalNoise2D(x, z, 4, 400.0f, 1.0f) + 0.75f)/1.5f);
* float st = SampleSpikes(worldX, worldZ, surfacePerlin);
* ht = (ht+m_surfaceLevel-1f) * factor + (ht + st) * (1f-factor);
*
* factor = Mathf.Clamp01((surfacePerlin.FractalNoise2D(x, z, 4, 150.0f, 1.0f) + 0.75f)/1.5f);
* float it = SampleIslands(worldX, worldZ, surfacePerlin);
* ht = (ht+m_surfaceLevel+1f) * factor + (ht + it) * (1f-factor);
*
* ht -= m_surfaceLevel;
* ht -= SampleMountains(worldX, worldZ, surfacePerlin);
*/
VoronoiNoise.SetDistanceToEuclidian();
VoronoiNoise.SetCombinationTo_D2_D0();
ht *= VoronoiNoise.FractalNoise2D(worldX, worldZ, 2, 500f, 2f, 6);
float factor = Mathf.Clamp01((surfacePerlin.FractalNoise2D(worldX, worldZ, 4, 400.0f, 1.0f) + 0.9375f) / 1.875f);
float st = SampleSpikes(worldX, worldZ, surfacePerlin);
ht = (ht + m_surfaceLevel - 1f) * factor + (ht + st) * (1f - factor);
factor = Mathf.Clamp01((surfacePerlin.FractalNoise2D(worldX, worldZ, 4, 150.0f, 1.0f) + 0.9375f) / 1.875f);
float it = SampleIslands(worldX, worldZ, surfacePerlin);
ht = (ht + m_surfaceLevel + 1f) * factor + (ht + it) * (1f - factor);
ht -= m_surfaceLevel * 1.5f;
// ht -= SampleMountains(worldX, worldZ, surfacePerlin);
for (int y = 0; y < h; y++)
{
float worldY = y + m_pos.y - m_surfaceLevel;
//If we take the heigth value and add the world
//the voxels will change from positiove to negative where the surface cuts through the voxel chunk
m_voxels[x, y, z] = Mathf.Clamp(ht + worldY, -1.0f, 1.0f);
if (m_biome == 15)
{
float caveHt = SampleCaves(worldX, worldY, worldZ, cavePerlin);
//This fades the voxel value so the caves never appear more than h units from
//the surface level.
float fade = 1.0f - Mathf.Clamp01(Mathf.Max(0.0f, worldY) / h);
m_voxels[x, y, z] += caveHt * fade;
m_voxels[x, y, z] = Mathf.Clamp(m_voxels[x, y, z], -1.0f, 1.0f);
}
}
}
}
//Debug.Log("Create voxels time = " + (Time.realtimeSinceStartup-startTime).ToString() );
}
