public bool Equals(XZPair other)
{
if (ReferenceEquals(null, other)) return false;
if (ReferenceEquals(this, other)) return true;
return other.X == X && other.Z == Z;
}
public TerrainChunk GenerateChunk(XZPair id)
{
int offsetX = id.X*_blockWidth*(_chunkWidthInBlocks);
int offsetZ = id.Z*_blockWidth*(_chunkWidthInBlocks);
var rawGeometry = new float[_chunkWidthInVerts*_chunkWidthInVerts*4];
var rawNormals = new ushort[_chunkWidthInVerts * _chunkWidthInVerts * 4];
var rawBinormals = new byte[_chunkWidthInVerts*_chunkWidthInVerts*4];
var rawTangents = new byte[_chunkWidthInVerts*_chunkWidthInVerts*4];
var rawUVCoords = new float[_chunkWidthInVerts*_chunkWidthInVerts*2];
var indicies = new int[(_chunkWidthInBlocks)*(_chunkWidthInBlocks)*8];
var activeVerts = new byte[_chunkWidthInVerts*_chunkWidthInVerts];
_terrainGenKernel.SetValueArgument(1, offsetX);
_terrainGenKernel.SetValueArgument(2, offsetZ);
_normalGenKernel.SetValueArgument(1, offsetX);
_normalGenKernel.SetValueArgument(2, offsetZ);
_cmdQueue.WriteToBuffer(_emptyVerts, _activeVerts, true, null);
_cmdQueue.WriteToBuffer(_emptyIndices, _indicies, true, null);
_cmdQueue.Execute(_terrainGenKernel, null, new long[]{_chunkWidthInVerts, _chunkWidthInVerts}, null, null);
_cmdQueue.Execute(_normalGenKernel, null, new long[]{_chunkWidthInVerts, _chunkWidthInVerts}, null, null);
for (int depth = 0; depth < 5; depth++){
_qTreeKernel.SetValueArgument(0, depth);
_crossCullKernel.SetValueArgument(0, depth);
int cellWidth = (int) Math.Pow(2, depth)*2;
int qTreeWidth = _chunkWidthInBlocks/(cellWidth);
_cmdQueue.Execute(_qTreeKernel, null, new long[]{(qTreeWidth) - 1, (qTreeWidth*2)}, null, null);
_cmdQueue.Execute(_crossCullKernel, null, new long[]{_chunkWidthInBlocks/cellWidth, _chunkWidthInBlocks/cellWidth}, null, null);
}
_cmdQueue.Execute(_winderKernel, null, new long[]{(_chunkWidthInBlocks), (_chunkWidthInBlocks*2)}, null, null);
_cmdQueue.ReadFromBuffer(_geometry, ref rawGeometry, true, null);
_cmdQueue.ReadFromBuffer(_normals, ref rawNormals, true, null);
_cmdQueue.ReadFromBuffer(_binormals, ref rawBinormals, true, null);
_cmdQueue.ReadFromBuffer(_tangents, ref rawTangents, true, null);
_cmdQueue.ReadFromBuffer(_uvCoords, ref rawUVCoords, true, null);
_cmdQueue.ReadFromBuffer(_indicies, ref indicies, true, null);
_cmdQueue.ReadFromBuffer(_activeVerts, ref activeVerts, true, null);
_cmdQueue.Finish();
for (int v = 3; v < rawNormals.Length; v += 4){
rawNormals[v] = 1;
}
for (int v = 3; v < rawBinormals.Length; v += 4){
rawBinormals[v] = 1;
}
for (int v = 3; v < rawTangents.Length; v += 4){
rawTangents[v] = 1;
}
var texNormal = new Texture2D(Gbl.Device, _chunkWidthInVerts, _chunkWidthInVerts, false, SurfaceFormat.Rgba64);
var texBinormal = new Texture2D(Gbl.Device, _chunkWidthInVerts, _chunkWidthInVerts, false, SurfaceFormat.Color);
var texTangent = new Texture2D(Gbl.Device, _chunkWidthInVerts, _chunkWidthInVerts, false, SurfaceFormat.Color);
texNormal.SetData(rawNormals);
texBinormal.SetData(rawBinormals);
texTangent.SetData(rawTangents);
//var maxHeight = verts.Aggregate((agg, next) => next.Y > agg.Y ? next : agg).Y;
//var minHeight = verts.Aggregate((agg, next) => next.Y < agg.Y ? next : agg).Y;
//these functions take the raw buffer data from opencl and remove stride and empty fields
var parsedUV = ParseUV(rawUVCoords);
var parsedGeometry = ParseGeometry(rawGeometry);
var parsedIndicies = ParseIndicies(indicies);
var sw = new Stopwatch();
sw.Start();
int[] culledIndexes;
VertexPositionTexture[] culledVertexes;
CullVertexes(activeVerts, parsedIndicies.ToList(), parsedGeometry, parsedUV, out culledIndexes, out culledVertexes);
sw.Stop();
double elapsed = sw.ElapsedMilliseconds;
var chunkData = new TerrainChunk(id, culledVertexes, culledIndexes, texNormal, texBinormal, texTangent);
return chunkData;
}
public XZPair(XZPair xzpair)
{
X = xzpair.X;
Z = xzpair.Z;
}
