private static int ReadXYZI(BinaryReader br, MagicaVoxelMainChunk mainChunk)
{
int chunkSize = br.ReadInt32();
int childrenSize = br.ReadInt32();
if (childrenSize > 0)
{
br.ReadBytes(childrenSize);
Debug.LogWarning("MV: Nested chunks not supported");
return(-1);
}
MagicaVoxelChunk chunk = mainChunk.chunk;
int numVoxels = br.ReadInt32();
for (int i = 0; i < numVoxels; ++i)
{
int x = br.ReadByte();
int z = br.ReadByte(); // Magica has Z and Y swapped
int y = br.ReadByte();
chunk.data[Helpers.GetIndex1DFrom3D(x, y, z, chunk.sizeX, chunk.sizeZ)] = br.ReadByte();
}
return(chunkSize + childrenSize + 4 * 3);
}
public static float GetNoise(float[] noiseSet, int sideSize, int x, int y, int z, int max, float power)
{
// FastSIMD keeps things in x,y,z fashion but we have them ordered as y,z,x
int index = Helpers.GetIndex1DFrom3D(z, x, y, sideSize, sideSize);
float n = noiseSet[index] + 1f;
n *= (max >> 1);
if (Math.Abs(power - 1f) > float.Epsilon)
{
n = Mathf.Pow(n, power);
}
return(n);
}