private void GenerateMesh(VoxelGrid grid)
{
this.EnqueueWorkerJob(() =>
{
//Thread.Sleep(750);
var voxels = this.grid.Data;
var vertices = new List <VertexPositionTextureNormal>(voxels.XLength * voxels.YLength * voxels.ZLength);
var indices = new List <ushort>(voxels.XLength * voxels.YLength * voxels.ZLength);
var imageSize = new Vector2(MaterialInstance.ImageWidth, MaterialInstance.ImageHeight);
//MeshGenerator.GenerateMesh(voxels, (voxel, side, quad) =>
//{
// var type = _types[voxel.BlockType];
// var textureOffset = GetTexCoords(type, voxel.Orientation, side);
// indices.Add((ushort)(vertices.Count + 0));
// indices.Add((ushort)(vertices.Count + 1));
// indices.Add((ushort)(vertices.Count + 3));
// indices.Add((ushort)(vertices.Count + 1));
// indices.Add((ushort)(vertices.Count + 2));
// indices.Add((ushort)(vertices.Count + 3));
// vertices.Add(new VertexPositionTextureNormal(quad.A, (textureOffset + new Vector2(0, 128)) / imageSize, quad.Normal));
// vertices.Add(new VertexPositionTextureNormal(quad.B, (textureOffset + new Vector2(0, 0)) / imageSize, quad.Normal));
// vertices.Add(new VertexPositionTextureNormal(quad.C, (textureOffset + new Vector2(128, 0)) / imageSize, quad.Normal));
// vertices.Add(new VertexPositionTextureNormal(quad.D, (textureOffset + new Vector2(128, 128)) / imageSize, quad.Normal));
//});
GreedyMeshGenerator.GenerateMesh(voxels, (typeNum, orientation, side, quad, size) =>
{
var type = _types[typeNum];
var textureOffset = GetTexCoords(type, orientation, side);
indices.Add((ushort)(vertices.Count + 0));
indices.Add((ushort)(vertices.Count + 1));
indices.Add((ushort)(vertices.Count + 3));
indices.Add((ushort)(vertices.Count + 1));
indices.Add((ushort)(vertices.Count + 2));
indices.Add((ushort)(vertices.Count + 3));
vertices.Add(new VertexPositionTextureNormal(quad.A, (textureOffset + new Vector2(0, 128)) / imageSize, quad.Normal));
vertices.Add(new VertexPositionTextureNormal(quad.B, (textureOffset + new Vector2(0, 0)) / imageSize, quad.Normal));
vertices.Add(new VertexPositionTextureNormal(quad.C, (textureOffset + new Vector2(128, 0)) / imageSize, quad.Normal));
vertices.Add(new VertexPositionTextureNormal(quad.D, (textureOffset + new Vector2(128, 128)) / imageSize, quad.Normal));
});
UpdateMesh(vertices.ToArray(), indices.ToArray());
});
}
public void Initialize(GraphicsDevice device, CommandList commandList, RenderableInitialize initialize)
{
grid = GameObject.GetComponent <VoxelGrid>();
grid.VoxelsChanged += GenerateMesh;
GenerateMesh(grid);
}
public static void Check(int flatIndex, VoxelGrid voxels, T checker)
{
var voxelIndex = voxels.AsCoordinate(flatIndex);
var xInc = 1;
var yInc = voxels.GridSize;
var zInc = voxels.GridSize * voxels.GridSize;
if (voxelIndex.X > 0)
{
checker.Check(flatIndex - xInc, voxels);
}
else
{
var otherGrid = voxels.NeighborGrids[(int)VoxelSide.WEST];
if (otherGrid != null)
{
checker.Check(otherGrid.AsFlatIndex(voxels.GridSize - 1, voxelIndex.Y, voxelIndex.Z), otherGrid);
}
}
if (voxelIndex.X < voxels.GridSize - 1)
{
checker.Check(flatIndex + xInc, voxels);
}
else
{
var otherGrid = voxels.NeighborGrids[(int)VoxelSide.EAST];
if (otherGrid != null)
{
checker.Check(otherGrid.AsFlatIndex(0, voxelIndex.Y, voxelIndex.Z), otherGrid);
}
}
if (voxelIndex.Y > 0)
{
checker.CheckBelow(flatIndex - yInc, voxels);
}
else
{
var otherGrid = voxels.NeighborGrids[(int)VoxelSide.BOTTOM];
if (otherGrid != null)
{
checker.CheckBelow(otherGrid.AsFlatIndex(voxelIndex.X, voxels.GridSize - 1, voxelIndex.Z), otherGrid);
}
}
if (voxelIndex.Y < voxels.GridSize - 1)
{
checker.Check(flatIndex + yInc, voxels);
}
else
{
var otherGrid = voxels.NeighborGrids[(int)VoxelSide.TOP];
if (otherGrid != null)
{
checker.Check(otherGrid.AsFlatIndex(voxelIndex.X, 0, voxelIndex.Z), otherGrid);
}
}
if (voxelIndex.Z > 0)
{
checker.Check(flatIndex - zInc, voxels);
}
else
{
var otherGrid = voxels.NeighborGrids[(int)VoxelSide.NORTH];
if (otherGrid != null)
{
checker.Check(otherGrid.AsFlatIndex(voxelIndex.X, voxelIndex.Y, voxels.GridSize - 1), otherGrid);
}
}
if (voxelIndex.Z < voxels.GridSize - 1)
{
checker.Check(flatIndex + zInc, voxels);
}
else
{
var otherGrid = voxels.NeighborGrids[(int)VoxelSide.SOUTH];
if (otherGrid != null)
{
checker.Check(otherGrid.AsFlatIndex(voxelIndex.X, voxelIndex.Y, 0), otherGrid);
}
}
}
