void GenerateMap()
{
int resolutionCube = resolution * resolution * resolution;
if (map.Length != resolutionCube)
{
map = new float[resolution, resolution, resolution];
}
NativeList <int3> usedIndices = new NativeList <int3>(Allocator.Temp);
for (int x = 0; x < resolution - 1; x++)
{
for (int y = 0; y < resolution - 1; y++)
{
for (int z = 0; z < resolution - 1; z++)
{
float4 pos = new float4(position.x + x * scale, position.y + y * scale, position.z + z * scale, position.w);
float perlin = noise.cnoise(pos);
map[x, y, z] = perlin > thresHold ? 1 : 0;
usedIndices.Add(new int3(x, y, z));
}
}
}
MarchingCube.CreateMeshData(map, usedIndices, scale, ref mesh);
usedIndices.Dispose();
filter.mesh = mesh;
}
/// <summary>
/// Uncompleted Bursted version
/// </summary>
public static void GenerateMeshBurst(NativeArray <SPHSystem.WaterParticle> waterParticles, int count, float3 minPosition, float3 maxPosition, int resolution, ref Mesh mesh)
{
Profiler.BeginSample("WaterMarchingCube");
int resolutionCube = resolution * resolution * resolution;
var nativeMap = new NativeArray <float>(resolutionCube, Allocator.TempJob);
var nativeUsedIndices = new NativeList <int3>(resolutionCube, Allocator.TempJob);
float invResolution = 1f / resolution;
FillMapJob fillMapJob = new FillMapJob()
{
map = nativeMap,
usedIndices = nativeUsedIndices,
resolution = resolution,
invResolution = invResolution,
maxPosition = maxPosition,
minPosition = minPosition,
waterParticles = waterParticles,
};
fillMapJob.Run();
Profiler.EndSample();
MarchingCube.CreateMeshData(nativeMap, nativeUsedIndices, resolution, invResolution, ref mesh);
nativeMap.Dispose();
nativeUsedIndices.Dispose();
}
public static void GenerateMesh(NativeArray <SPHSystem.WaterParticle> waterParticles, int count, float3 minPosition, float3 maxPosition, int resolution, ref Mesh mesh)
{
Profiler.BeginSample("WaterMarchingCube");
int resolutionCube = resolution * resolution * resolution;
if (usedGrid == null || usedGrid.Length != resolutionCube)
{
usedGrid = new bool[resolution, resolution, resolution];
map = new float[resolution, resolution, resolution];
}
else
{
Array.Clear(usedGrid, 0, resolutionCube);
Array.Clear(map, 0, resolutionCube);
}
float invResolution = 1f / resolution;
float step = math.distance(maxPosition.x, minPosition.x) * invResolution;
float invStep = 1f / step;
NativeList <int3> usedIndices = new NativeList <int3>(resolution * resolution, Allocator.Temp);
for (int i = 0; i < count; i++)
{
int3 index = GetPositionIndex(waterParticles[i].position, minPosition, maxPosition, resolution, invStep);
//Only calculate marching cube for the 8 corners per cube
for (int j = 0; j < MarchingCubeTables.CornerTable.Length; j++)
{
int3 conerIndex = index + MarchingCubeTables.CornerTable[j];
if (!usedGrid[conerIndex.x, conerIndex.y, conerIndex.z])
{
usedGrid[conerIndex.x, conerIndex.y, conerIndex.z] = true;
usedIndices.Add(conerIndex);
}
int3 conerIndex2 = index - MarchingCubeTables.CornerTable[j];
if (!usedGrid[conerIndex2.x, conerIndex2.y, conerIndex2.z])
{
usedGrid[conerIndex2.x, conerIndex2.y, conerIndex2.z] = true;
usedIndices.Add(conerIndex2);
}
}
map[index.x, index.y, index.z] = 1;
}
Profiler.EndSample();
MarchingCube.CreateMeshData(map, usedIndices, invResolution, ref mesh);
usedIndices.Dispose();
}