void cBioGenDistortedVoronoi::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
{
int BaseZ = cChunkDef::Width * a_ChunkZ;
int BaseX = cChunkDef::Width * a_ChunkX;
// Distortions for linear interpolation:
int DistortX[cChunkDef::Width + 1][cChunkDef::Width + 1];
int DistortZ[cChunkDef::Width + 1][cChunkDef::Width + 1];
for (int x = 0; x <= 4; x++) for (int z = 0; z <= 4; z++)
{
Distort(BaseX + x * 4, BaseZ + z * 4, DistortX[4 * x][4 * z], DistortZ[4 * x][4 * z]);
}
LinearUpscale2DArrayInPlace<cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4>(&DistortX[0][0]);
LinearUpscale2DArrayInPlace<cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4>(&DistortZ[0][0]);
for (int z = 0; z < cChunkDef::Width; z++)
{
for (int x = 0; x < cChunkDef::Width; x++)
{
int VoronoiCellValue = m_Voronoi.GetValueAt(DistortX[x][z], DistortZ[x][z]) / 8;
cChunkDef::SetBiome(a_BiomeMap, x, z, m_Biomes[VoronoiCellValue % m_BiomesCount]);
} // for x
} // for z
}
void EffectNode::Process(unsigned int bufsize)
{
if (bufsize>(unsigned int)m_Output.GetLength())
{
m_Output.Allocate(bufsize);
}
ProcessChildren(bufsize);
if (ChildExists(0) && !GetChild(0)->IsTerminal() && ChildExists(1))
{
if (m_Type==CLIP)
{
m_Output=GetInput(0);
if (GetChild(1)->IsTerminal())
{
HardClip(m_Output, GetChild(1)->GetCVValue());
}
else
{
MovingHardClip(m_Output, GetInput(1));
}
}
else if (m_Type==DISTORT)
{
m_Output=GetInput(0);
if (GetChild(1)->IsTerminal())
{
Distort(m_Output, GetChild(1)->GetCVValue());
}
else
{
MovingDistort(m_Output, GetInput(1));
}
}
else if (ChildExists(2))
{
switch (m_Type)
{
case CRUSH : m_Output=GetInput(0); Crush(m_Output, GetChild(1)->GetCVValue(), GetChild(2)->GetCVValue()); break;
case DELAY :
{
m_Delay.SetDelay(GetChild(1)->GetCVValue());
m_Delay.SetFeedback(GetChild(2)->GetCVValue());
m_Delay.Process(bufsize, GetInput(0), m_Output); break;
}
default :
assert(0);
break;
}
}
}
}
bool CameraIntrinsics::DirectionToImage(double u_normalized,
double v_normalized,
double *u_distorted,
double *v_distorted) const {
CHECK_NOTNULL(u_distorted);
CHECK_NOTNULL(v_distorted);
// Distort the normalized direction vector;
double u = 0.0, v = 0.0;
Distort(u_normalized, v_normalized, &u, &v);
// Make a homogeneous vector from the output.
Vector3d p;
p << u, v, 1.0;
// Multiply the distorted direction vector by camera intrinsic matrix to get
// the image space point.
const Vector3d p_out = CameraIntrinsics::K() * p;
*u_distorted = p_out(0);
*v_distorted = p_out(1);
// Make sure that the resulting point is in the image.
return PointInImage(*u_distorted, *v_distorted);
}
void cBioGenMultiStepMap::DecideOceanLandMushroom(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
{
// Distorted Voronoi over 3 biomes, with mushroom having only a special occurence.
// Prepare a distortion lookup table, by distorting a 5x5 area and using that as 1:4 zoom (linear interpolate):
int BaseZ = cChunkDef::Width * a_ChunkZ;
int BaseX = cChunkDef::Width * a_ChunkX;
int DistortX[cChunkDef::Width + 1][cChunkDef::Width + 1];
int DistortZ[cChunkDef::Width + 1][cChunkDef::Width + 1];
int DistortSize = m_OceanCellSize / 2;
for (int x = 0; x <= 4; x++) for (int z = 0; z <= 4; z++)
{
Distort(BaseX + x * 4, BaseZ + z * 4, DistortX[4 * x][4 * z], DistortZ[4 * x][4 * z], DistortSize);
}
LinearUpscale2DArrayInPlace<cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4>(&DistortX[0][0]);
LinearUpscale2DArrayInPlace<cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4>(&DistortZ[0][0]);
// Prepare a 9x9 area of neighboring cell seeds
// (assuming that 7x7 cell area is larger than a chunk being generated)
const int NEIGHBORHOOD_SIZE = 4; // How many seeds in each direction to check
int CellX = BaseX / m_OceanCellSize;
int CellZ = BaseZ / m_OceanCellSize;
int SeedX[2 * NEIGHBORHOOD_SIZE + 1][2 * NEIGHBORHOOD_SIZE + 1];
int SeedZ[2 * NEIGHBORHOOD_SIZE + 1][2 * NEIGHBORHOOD_SIZE + 1];
EMCSBiome SeedV[2 * NEIGHBORHOOD_SIZE + 1][2 * NEIGHBORHOOD_SIZE + 1];
for (int xc = 0; xc < 2 * NEIGHBORHOOD_SIZE + 1; xc++)
{
int RealCellX = xc + CellX - NEIGHBORHOOD_SIZE;
int CellBlockX = RealCellX * m_OceanCellSize;
for (int zc = 0; zc < 2 * NEIGHBORHOOD_SIZE + 1; zc++)
{
int RealCellZ = zc + CellZ - NEIGHBORHOOD_SIZE;
int CellBlockZ = RealCellZ * m_OceanCellSize;
int OffsetX = (m_Noise2.IntNoise3DInt(RealCellX, 16 * RealCellX + 32 * RealCellZ, RealCellZ) / 8) % m_OceanCellSize;
int OffsetZ = (m_Noise4.IntNoise3DInt(RealCellX, 32 * RealCellX - 16 * RealCellZ, RealCellZ) / 8) % m_OceanCellSize;
SeedX[xc][zc] = CellBlockX + OffsetX;
SeedZ[xc][zc] = CellBlockZ + OffsetZ;
SeedV[xc][zc] = (((m_Noise6.IntNoise3DInt(RealCellX, RealCellX - RealCellZ + 1000, RealCellZ) / 11) % 256) > 90) ? biOcean : (biInvalidBiome);
} // for z
} // for x
for (int xc = 1; xc < 2 * NEIGHBORHOOD_SIZE; xc++) for (int zc = 1; zc < 2 * NEIGHBORHOOD_SIZE; zc++)
{
if (
(SeedV[xc ][zc] == biOcean) &&
(SeedV[xc - 1][zc] == biOcean) &&
(SeedV[xc + 1][zc] == biOcean) &&
(SeedV[xc ][zc - 1] == biOcean) &&
(SeedV[xc ][zc + 1] == biOcean) &&
(SeedV[xc - 1][zc - 1] == biOcean) &&
(SeedV[xc + 1][zc - 1] == biOcean) &&
(SeedV[xc - 1][zc + 1] == biOcean) &&
(SeedV[xc + 1][zc + 1] == biOcean)
)
{
SeedV[xc][zc] = biMushroomIsland;
}
}
// For each column find the nearest distorted cell and use its value as the biome:
int MushroomOceanThreshold = m_OceanCellSize * m_OceanCellSize * m_MushroomIslandSize / 1024;
int MushroomShoreThreshold = m_OceanCellSize * m_OceanCellSize * m_MushroomIslandSize / 2048;
for (int z = 0; z < cChunkDef::Width; z++)
{
for (int x = 0; x < cChunkDef::Width; x++)
{
int AbsoluteZ = DistortZ[x][z];
int AbsoluteX = DistortX[x][z];
int MinDist = m_OceanCellSize * m_OceanCellSize * 16; // There has to be a cell closer than this
EMCSBiome Biome = biPlains;
// Find the nearest cell seed:
for (int xs = 1; xs < 2 * NEIGHBORHOOD_SIZE; xs++) for (int zs = 1; zs < 2 * NEIGHBORHOOD_SIZE; zs++)
{
int Dist = (SeedX[xs][zs] - AbsoluteX) * (SeedX[xs][zs] - AbsoluteX) + (SeedZ[xs][zs] - AbsoluteZ) * (SeedZ[xs][zs] - AbsoluteZ);
if (Dist >= MinDist)
{
continue;
}
MinDist = Dist;
Biome = SeedV[xs][zs];
// Shrink mushroom biome and add a shore:
if (Biome == biMushroomIsland)
{
if (Dist > MushroomOceanThreshold)
{
Biome = biOcean;
}
else if (Dist > MushroomShoreThreshold)
{
Biome = biMushroomShore;
}
}
} // for zs, xs
cChunkDef::SetBiome(a_BiomeMap, x, z, Biome);
} // for x
} // for z
}