public static GeometricPrimitive CreateFromChunk(VoxelChunk Chunk, WorldManager World)
{
DebugHelper.AssertNotNull(Chunk);
DebugHelper.AssertNotNull(World);
var sliceStack = new List <RawPrimitive>();
var sliceCache = new SliceCache();
int maxViewingLevel = World.Renderer.PersistentSettings.MaxViewingLevel;
var terrainTileSheet = new TerrainTileSheet(512, 512, 32, 32);
for (var localY = 0; localY < maxViewingLevel - Chunk.Origin.Y && localY < VoxelConstants.ChunkSizeY; ++localY)
{
RawPrimitive sliceGeometry = null;
sliceCache.ClearSliceCache();
lock (Chunk.Data.SliceCache)
{
var cachedSlice = Chunk.Data.SliceCache[localY];
if (cachedSlice != null)
{
sliceStack.Add(cachedSlice); // Todo: Get rid of the raw primitive / geometric primitive bullshit entirely
if (GameSettings.Current.GrassMotes)
{
Chunk.RebuildMoteLayerIfNull(localY);
}
continue;
}
sliceGeometry = new RawPrimitive();
Chunk.Data.SliceCache[localY] = sliceGeometry;
}
if (GameSettings.Current.CalculateRamps)
{
PrecomputeVoxelSlopesSlice(World.ChunkManager, Chunk, localY);
}
if (GameSettings.Current.GrassMotes)
{
Chunk.RebuildMoteLayer(localY);
}
DebugHelper.AssertNotNull(sliceGeometry);
GenerateSliceGeometry(sliceGeometry, Chunk, localY, terrainTileSheet, World, sliceCache);
sliceStack.Add(sliceGeometry);
}
var chunkGeo = RawPrimitive.Concat(sliceStack);
var r = new GeometricPrimitive();
r.Vertices = chunkGeo.Vertices;
r.VertexCount = chunkGeo.VertexCount;
r.Indexes = chunkGeo.Indexes.Select(c => (ushort)c).ToArray();
r.IndexCount = chunkGeo.IndexCount;
return(r);
}
