//----Noise functions----\\
#region Noise Functions
//Density function for the marching cube algorithm
public static float Density(float3 point, TerrainGenerationData data)
{
point *= data.scale;
float density = (point.y - data.floorHeight) * data.floorFactor;
//return density + data.offset;
density += SimplexNoiseOctaves(point, data.noise1);
density += CellularNoiseOctaves(point, data.noise2);
density += CellularNoise2Octaves(point, data.noise3);
/*
* if (density < -10)
* {
* density = CellularNoise2Octaves(point, data.noise3);
* }
*/
return(density + data.offset);
}
//Generates the MarchingCube mesh
public void GenerateMesh(TerrainGenerationData _terrainGenerationData, TerrainColorData _terrainColorData, Vector3Int chunkPos, TerrainGenerator _terrain, int[] _triTable, float3[] _edgeTable, float3[] _edgeTable2, int LOD = 0, bool resetMesh = true, bool immediate = false)
{
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
if (resetMesh)
{
GetComponent <MeshFilter>().sharedMesh = new Mesh();
}
completed = false;
terrainGenerationData = _terrainGenerationData;
terrainColorData = _terrainColorData;
terrain = _terrain;
chunkPosition = chunkPos;
int resolution = terrainGenerationData.resolution - LOD;
voxels = new NativeArray <float>((resolution + 2) * (resolution + 2) * (resolution + 2), Allocator.Persistent);
vertices = new NativeArray <float3>(12 * resolution * resolution * resolution, Allocator.Persistent);
finalVertices = new NativeList <Vector3>(Allocator.Persistent);
triangles = new NativeArray <int>(16 * resolution * resolution * resolution, Allocator.Persistent);
finalTriangles = new NativeList <int>(Allocator.Persistent);
colors = new NativeArray <Color>(12 * resolution * resolution * resolution, Allocator.Persistent);
finalColors = new NativeList <Color>(Allocator.Persistent);
triTable = new NativeArray <int>(_triTable.Length, Allocator.Persistent);
edgeTable = new NativeArray <float3>(12, Allocator.Persistent);
edgeTable2 = new NativeArray <float3>(12, Allocator.Persistent);
edgeTable.CopyFrom(_edgeTable);
edgeTable2.CopyFrom(_edgeTable2);
triTable.CopyFrom(_triTable);
if (_terrainGenerationData.usePregeneratedVoxelData)
{
MarchingCubeVoxelJob voxelJob = new MarchingCubeVoxelJob()
{
voxels = voxels,
chunkPosition = new float3(chunkPosition.x * 10, chunkPosition.y * 10, chunkPosition.z * 10),
scale = (float)10 / (float)resolution,
resolution = resolution + 2,
terrainGenerationData = _terrainGenerationData
};
voxelHandle = voxelJob.Schedule((resolution + 2) * (resolution + 2) * (resolution + 2), 64);
}
MarchingCubeJob job = new MarchingCubeJob()
{
edgeTable = edgeTable,
edgeTable2 = edgeTable2,
scale = (float)10 / (float)resolution,
LOD = LOD,
voxels = voxels,
resolution = resolution,
triangulationTable = triTable,
chunkPosition = new float3(chunkPosition.x * 10, chunkPosition.y * 10, chunkPosition.z * 10),
vertices = vertices,
triangles = triangles,
colors = colors,
terrainGenerationData = _terrainGenerationData,
terrainColorData = _terrainColorData
};
if (_terrainGenerationData.usePregeneratedVoxelData)
{
jobHandle = job.Schedule(resolution * resolution * resolution, 64, voxelHandle);
}
else
{
jobHandle = job.Schedule(resolution * resolution * resolution, 64);
}
MarchingCubeOptimizeJob optimize = new MarchingCubeOptimizeJob()
{
vertices = vertices,
finalVertices = finalVertices,
triangles = triangles,
finalTriangles = finalTriangles,
colors = colors,
finalColors = finalColors
};
optimizeHandle = optimize.Schedule(jobHandle);
if (immediate)
{
CompleteChunkJob();
stopwatch.Stop();
UnityEngine.Debug.Log(stopwatch.ElapsedMilliseconds);
}
}
