public void InitializeFromChunk(VoxelChunk chunk, GraphicsDevice graphics) { if (chunk == null) { return; } rebuildMutex.WaitOne(); if (isRebuilding) { rebuildMutex.ReleaseMutex(); return; } isRebuilding = true; rebuildMutex.ReleaseMutex(); accumulatedVertices.Clear(); accumulatedIndices.Clear(); faceExists.Clear(); drawFace.Clear(); Voxel v = chunk.MakeVoxel(0, 0, 0); Voxel voxelOnFace = chunk.MakeVoxel(0, 0, 0); Voxel[] manhattanNeighbors = new Voxel[4]; for (int x = 0; x < chunk.SizeX; x++) { for (int y = 0; y < Math.Min(chunk.Manager.ChunkData.MaxViewingLevel + 1, chunk.SizeY); y++) { for (int z = 0; z < chunk.SizeZ; z++) { v.GridPosition = new Vector3(x, y, z); if (v.IsEmpty || !v.IsVisible) { continue; } BoxPrimitive primitive = VoxelLibrary.GetPrimitive(v.Type); if (primitive == null) { continue; } BoxPrimitive.BoxTextureCoords uvs = primitive.UVs; if (v.Type.HasTransitionTextures) { uvs = v.ComputeTransitionTexture(manhattanNeighbors); } Voxel worldVoxel = new Voxel(); for (int i = 0; i < 6; i++) { BoxFace face = (BoxFace)i; Vector3 delta = FaceDeltas[face]; faceExists[face] = chunk.IsCellValid(x + (int)delta.X, y + (int)delta.Y, z + (int)delta.Z); drawFace[face] = true; if (faceExists[face]) { voxelOnFace.GridPosition = new Vector3(x + (int)delta.X, y + (int)delta.Y, z + (int)delta.Z); drawFace[face] = voxelOnFace.IsEmpty || !voxelOnFace.IsVisible || (voxelOnFace.Type.CanRamp && voxelOnFace.RampType != RampType.None && IsSideFace(face) && ShouldDrawFace(face, voxelOnFace.RampType, v.RampType)); } else { bool success = chunk.Manager.ChunkData.GetNonNullVoxelAtWorldLocation(new Vector3(x + (int)delta.X, y + (int)delta.Y, z + (int)delta.Z) + chunk.Origin, ref worldVoxel); drawFace[face] = !success || worldVoxel.IsEmpty || !worldVoxel.IsVisible || (worldVoxel.Type.CanRamp && worldVoxel.RampType != RampType.None && IsSideFace(face) && ShouldDrawFace(face, worldVoxel.RampType, v.RampType)); } } for (int i = 0; i < 6; i++) { BoxFace face = (BoxFace)i; if (!drawFace[face]) { continue; } int faceIndex = 0; int faceCount = 0; int vertexIndex = 0; int vertexCount = 0; primitive.GetFace(face, uvs, out faceIndex, out faceCount, out vertexIndex, out vertexCount); Vector2 texScale = uvs.Scales[i]; int indexOffset = accumulatedVertices.Count; for (int vertOffset = 0; vertOffset < vertexCount; vertOffset++) { ExtendedVertex vert = primitive.Vertices[vertOffset + vertexIndex]; VoxelVertex bestKey = VoxelChunk.GetNearestDelta(vert.Position); Color color = v.Chunk.Data.GetColor(x, y, z, bestKey); Vector3 offset = Vector3.Zero; Vector2 texOffset = Vector2.Zero; if (v.Type.CanRamp && ShouldRamp(bestKey, v.RampType)) { offset = new Vector3(0, -v.Type.RampSize, 0); if (face != BoxFace.Top && face != BoxFace.Bottom) { texOffset = new Vector2(0, v.Type.RampSize * (texScale.Y)); } } ExtendedVertex newVertex = new ExtendedVertex((vert.Position + v.Position + VertexNoise.GetNoiseVectorFromRepeatingTexture(vert.Position + v.Position) + offset), color, uvs.Uvs[vertOffset + vertexIndex] + texOffset, uvs.Bounds[faceIndex / 6]); accumulatedVertices.Add(newVertex); } for (int idx = faceIndex; idx < faceCount + faceIndex; idx++) { int vertexOffset = primitive.Indices[idx]; accumulatedIndices.Add((short)(indexOffset + (vertexOffset - primitive.Indices[faceIndex]))); } } } } } Vertices = new ExtendedVertex[accumulatedVertices.Count]; accumulatedVertices.CopyTo(Vertices); IndexBuffer = new IndexBuffer(graphics, typeof(short), accumulatedIndices.Count, BufferUsage.WriteOnly); IndexBuffer.SetData(accumulatedIndices.ToArray()); ResetBuffer(graphics); isRebuilding = false; //chunk.PrimitiveMutex.WaitOne(); chunk.NewPrimitive = this; chunk.NewPrimitiveReceived = true; //chunk.PrimitiveMutex.ReleaseMutex(); }
public void InitializeFromChunk(VoxelChunk chunk, GraphicsDevice graphics) { if (chunk == null) { return; } rebuildMutex.WaitOne(); if (isRebuilding) { rebuildMutex.ReleaseMutex(); return; } isRebuilding = true; rebuildMutex.ReleaseMutex(); int[] ambientValues = new int[4]; int maxIndex = 0; int maxVertex = 0; Voxel v = chunk.MakeVoxel(0, 0, 0); Voxel voxelOnFace = chunk.MakeVoxel(0, 0, 0); Voxel[] manhattanNeighbors = new Voxel[4]; BoxPrimitive bedrockModel = VoxelLibrary.GetPrimitive("Bedrock"); Voxel worldVoxel = new Voxel(); if (Vertices == null) { Vertices = new ExtendedVertex[1024]; } if (Indexes == null) { Indexes = new ushort[512]; } for (int y = 0; y < Math.Min(chunk.Manager.ChunkData.MaxViewingLevel + 1, chunk.SizeY); y++) { for (int x = 0; x < chunk.SizeX; x++) { for (int z = 0; z < chunk.SizeZ; z++) { v.GridPosition = new Vector3(x, y, z); if ((v.IsExplored && v.IsEmpty) || !v.IsVisible) { continue; } BoxPrimitive primitive = VoxelLibrary.GetPrimitive(v.Type); if (v.IsExplored && primitive == null) { continue; } if (!v.IsExplored) { primitive = bedrockModel; } Color tint = v.Type.Tint; BoxPrimitive.BoxTextureCoords uvs = primitive.UVs; if (v.Type.HasTransitionTextures && v.IsExplored) { uvs = v.ComputeTransitionTexture(manhattanNeighbors); } for (int i = 0; i < 6; i++) { BoxFace face = (BoxFace)i; Vector3 delta = FaceDeltas[(int)face]; faceExists[(int)face] = chunk.IsCellValid(x + (int)delta.X, y + (int)delta.Y, z + (int)delta.Z); drawFace[(int)face] = true; if (faceExists[(int)face]) { voxelOnFace.GridPosition = new Vector3(x + (int)delta.X, y + (int)delta.Y, z + (int)delta.Z); drawFace[(int)face] = (voxelOnFace.IsExplored && voxelOnFace.IsEmpty) || !voxelOnFace.IsVisible || (voxelOnFace.Type.CanRamp && voxelOnFace.RampType != RampType.None && IsSideFace(face) && ShouldDrawFace(face, voxelOnFace.RampType, v.RampType)); } else { bool success = chunk.Manager.ChunkData.GetNonNullVoxelAtWorldLocation(new Vector3(x + (int)delta.X, y + (int)delta.Y, z + (int)delta.Z) + chunk.Origin, ref worldVoxel); drawFace[(int)face] = !success || (worldVoxel.IsExplored && worldVoxel.IsEmpty) || !worldVoxel.IsVisible || (worldVoxel.Type.CanRamp && worldVoxel.RampType != RampType.None && IsSideFace(face) && ShouldDrawFace(face, worldVoxel.RampType, v.RampType)); } } for (int i = 0; i < 6; i++) { BoxFace face = (BoxFace)i; if (!drawFace[(int)face]) { continue; } int faceIndex = 0; int faceCount = 0; int vertexIndex = 0; int vertexCount = 0; primitive.GetFace(face, uvs, out faceIndex, out faceCount, out vertexIndex, out vertexCount); Vector2 texScale = uvs.Scales[i]; int indexOffset = maxVertex; for (int vertOffset = 0; vertOffset < vertexCount; vertOffset++) { ExtendedVertex vert = primitive.Vertices[vertOffset + vertexIndex]; VoxelVertex bestKey = primitive.Deltas[vertOffset + vertexIndex]; Color color = v.Chunk.Data.GetColor(x, y, z, bestKey); ambientValues[vertOffset] = color.G; Vector3 offset = Vector3.Zero; Vector2 texOffset = Vector2.Zero; if (v.Type.CanRamp && ShouldRamp(bestKey, v.RampType)) { offset = new Vector3(0, -v.Type.RampSize, 0); if (face != BoxFace.Top && face != BoxFace.Bottom) { texOffset = new Vector2(0, v.Type.RampSize * (texScale.Y)); } } if (maxVertex >= Vertices.Length) { ExtendedVertex[] newVertices = new ExtendedVertex[Vertices.Length * 2]; Vertices.CopyTo(newVertices, 0); Vertices = newVertices; } Vertices[maxVertex] = new ExtendedVertex(vert.Position + v.Position + VertexNoise.GetNoiseVectorFromRepeatingTexture( vert.Position + v.Position) + offset, color, tint, uvs.Uvs[vertOffset + vertexIndex] + texOffset, uvs.Bounds[faceIndex / 6]); maxVertex++; } bool flippedQuad = ambientValues[0] + ambientValues[2] > ambientValues[1] + ambientValues[3]; for (int idx = faceIndex; idx < faceCount + faceIndex; idx++) { if (maxIndex >= Indexes.Length) { ushort[] indexes = new ushort[Indexes.Length * 2]; Indexes.CopyTo(indexes, 0); Indexes = indexes; } ushort vertexOffset = flippedQuad ? primitive.FlippedIndexes[idx] : primitive.Indexes[idx]; ushort vertexOffset0 = flippedQuad? primitive.FlippedIndexes[faceIndex] : primitive.Indexes[faceIndex]; Indexes[maxIndex] = (ushort)((int)indexOffset + (int)((int)vertexOffset - (int)vertexOffset0)); maxIndex++; } } } } } MaxIndex = maxIndex; MaxVertex = maxVertex; GenerateLightmap(chunk.Manager.ChunkData.Tilemap.Bounds); isRebuilding = false; //chunk.PrimitiveMutex.WaitOne(); chunk.NewPrimitive = this; chunk.NewPrimitiveReceived = true; //chunk.PrimitiveMutex.ReleaseMutex(); }