public Chunk[] GetChunksInRange(int x, int z, int range, bool createInside, bool removeOutside)
{
#region Chunks min and max
int visChunkSize = chunkSize-overlap*2;
int csx = (int)(1.0f*(x-range-overlap) / visChunkSize);
int cex = (int)(1.0f*(x+range-overlap) / visChunkSize);
int csz = (int)(1.0f*(z-range-overlap) / visChunkSize);
int cez = (int)(1.0f*(z+range-overlap) / visChunkSize);
if (x-range<0) csx--; if (x+range<0) cex--;
if (z-range<0) csz--; if (z+range<0) cez--;
#endregion
#region defining array dimensions and filling array
int chunksCountX = Mathf.Abs(cex-csx)+1;
int chunksCountZ = Mathf.Abs(cez-csz)+1;
Chunk[] chunks = new Chunk[chunksCountX*chunksCountZ];
#endregion
#region filling existant chunks list (and removing outside)
for (int i=activeChunks.Count-1; i>=0; i--)
{
if (activeChunks[i].coordX < csx || activeChunks[i].coordX > cex ||
activeChunks[i].coordZ < csz || activeChunks[i].coordZ > cez) //out of range
{
if (removeOutside)
{
//DestroyImmediate(activeChunks[i].gameObject);
chunkPool.Add(activeChunks[i]);
activeChunks[i].Clear();
activeChunks.RemoveAt(i);
}
}
//if in range
else chunks[ (activeChunks[i].coordZ-csz)*chunksCountX + (activeChunks[i].coordX-csx) ] = activeChunks[i];
}
#endregion
#region creating non-existant chunks
if (createInside)
for (int cx=0; cx<chunksCountX; cx++)
for (int cz=0; cz<chunksCountZ; cz++)
{
int chunkCoord = cz*chunksCountX + cx;
if (chunks[chunkCoord] == null)
{
//taking from a pool
if (chunkPool.Count > 0)
{
chunks[cz*chunksCountX + cx] = chunkPool[chunkPool.Count-1];
chunkPool.RemoveAt(chunkPool.Count-1);
}
//or creating new
else chunks[chunkCoord] = Chunk.CreateChunk(this);
//and initializing
chunks[chunkCoord].Init(cx+csx,cz+csz);
if (!activeChunks.Contains(chunks[chunkCoord])) activeChunks.Add(chunks[chunkCoord]);
}
}
#endregion
return chunks;
}
public Mesh[] MarchChunk(object state)
{
Mesh[] result = new Mesh[2];
Octree node = (Octree)state;
//Debug.Log("MARCH: " + node.center);
//Debug.Log("MARCH1: " + node.center);
int id = Thread.CurrentThread.ManagedThreadId % THREAD_MAX;
//Debug.Log("MARCH: " + id);
ComputeBuffer noiseDataBuffer = noiseBuffs[id];
ComputeBuffer trianglesBuffer = trigBuffs[id];
ComputeBuffer PPTrianglesBuffer = trigBuffs_PP[id];
ComputeBuffer counterBuffer = countBuffs[id];
int[] bufferCount = bufferCounts[id];
//Debug.Log("MARCH2: " + node.center);
perlin_shader.SetBuffer(PNkernel, "output", noiseDataBuffer);
//Debug.Log("MARCH3: " + node.center);
perlin_shader.SetVector("minCorner", new float4(node.bounds.min, 0));
perlin_shader.SetInt("sampleSize", CHUNK_SIZE + 1);
perlin_shader.SetInt("scale", node.level);
//Debug.Log("MARCH4: " + node.center);
int groupSize = Chunk.CHUNK_SIZE / 8;
//Debug.Log("MARCH5: " + node.center);
perlin_shader.Dispatch(PNkernel, groupSize + 1, groupSize + 1, groupSize + 1);
//data = new float4[(size + 1) * (size + 1) * (size + 1)];
//perlinBuffer.GetData(data);
//this.hasMesh = HasMesh();
//AsyncGPUReadbackRequest PVBrequest = AsyncGPUReadback.Request(noiseDataBuffer);
//AsyncGPUReadbackRequest PPPVBrequest = AsyncGPUReadback.Request(PPNoiseDataBuffer);
//StartCoroutine(GetNoiseDataCoroutine(PVBrequest, PPPVBrequest, node.chunk));
Chunk chunk = node.chunk;
//while (!PVBrequest.done || !PPPVBrequest.done) continue;
//if (PVBrequest.hasError || PPPVBrequest.hasError) { yield break};
//float4[] data = new float4[(CHUNK_SIZE + 1) * (CHUNK_SIZE + 1) * (CHUNK_SIZE + 1)];
//noiseDataBuffer.GetData(data);
//Debug.Log(data[0] + " " + data[data.Length - 1]);
////chunk.PPData = PPPVBrequest.GetData<float4>();
//bool hasMesh = false;
////if (chunk.center.x == -128f && chunk.center.y == -128f && chunk.center.z == -128f) {
// float4[] d = data;
// for (int i = 0; i < d.Length; i++) {
// if (!(d[i].w > 0 && d[0].w > 0 || (d[i].w <= 0 && d[0].w <= 0))) {
// hasMesh = true;
// break;
// }
// }
// Debug.Log(hasMesh);
////}
////Debug.Log(result.Length + " " + chunk.data.Value.Length);
//chunk.hasMesh = hasMesh;
//chunk.data = data;
//if (!hasMesh) yield break;
//if (((Vector3)chunk.center + Vector3.one * chunk.size / 2).y < chunk.data.Value[0].y) Debug.LogError("Data out of NODE");
//if (((Vector3)chunk.center + Vector3.one * chunk.size / 2).y < chunk.PPData.Value[0].y) Debug.LogError("PPData out of NODE");
//Debug.Log("MARCH " + chunk.center);
trianglesBuffer.SetCounterValue(0);
PPTrianglesBuffer.SetCounterValue(0);
mc_shader.SetBuffer(MCkernel, "dataBuffer", noiseDataBuffer);
mc_shader.SetBuffer(MCkernel, "trianglesBuffer", trianglesBuffer);
mc_shader.SetBuffer(MCkernel, "PPTrianglesBuffer", PPTrianglesBuffer);
mc_shader.SetFloat("isolevel", MarchingCube.isolevel);
mc_shader.SetInt("dataSize", CHUNK_SIZE + 1);
//MCShader.SetInt("scale", node.level + 1);
mc_shader.Dispatch(MCkernel, groupSize, groupSize, groupSize);
ComputeBuffer.CopyCount(trianglesBuffer, counterBuffer, 0);
counterBuffer.GetData(bufferCount);
Triangle[] triangles = new Triangle[bufferCount[0]];
trianglesBuffer.GetData(triangles);
ComputeBuffer.CopyCount(PPTrianglesBuffer, counterBuffer, 0);
counterBuffer.GetData(bufferCount);
Triangle[] PPtriangles = new Triangle[bufferCount[0]];
PPTrianglesBuffer.GetData(PPtriangles);
result[0] = GenMesh(triangles);
if (chunk.mesh != null && ((Vector3)chunk.center + Vector3.one * chunk.size / 2).y < chunk.mesh.vertices[0].y)
{
Debug.LogError("Mesh out of NODE" + chunk.center + " " + node.level);
}
result[1] = GenMesh(PPtriangles);
if (result[1] == null && result[0] != null || result[0] == null && result[1] != null)
{
Debug.LogError("!!!!!!!!!!!!!!!!!!!");
}
if (result[0] != null && result[1] != null)
{
chunk.hasMesh = true;
}
chunk.calculated = true;
//Debug.Log("MARCH: " + node.center);
return(result);
}