/// <summary>
/// Add Each Nif Geometry as an Instanced Meshes with World Matrix computed
/// </summary>
/// <param name="geometries">Collection of Nif Geometry</param>
protected void AddNifInstancesYZSwapped(IEnumerable <NifGeometry> geometries)
{
var result = new List <KeyValuePair <int, Matrix> >();
foreach (var geometry in geometries)
{
var trees = TreeReplacement[geometry.FileName];
var nifMatrix = ComputeWorldMatrix(geometry, UnitFactor);
// Tree match, Compose Matrix
if (trees.Length > 0)
{
foreach (var tree in trees)
{
Matrix instance;
Matrix translate;
ZoneDrawingExtensions.CreateTranslation(tree.OffsetX * UnitFactor, tree.OffsetZ * UnitFactor, tree.OffsetY * UnitFactor, out instance);
ZoneDrawingExtensions.Mult(ref nifMatrix, ref instance, out translate);
nifMatrix = translate;
}
}
result.Add(new KeyValuePair <int, Matrix>(geometry.MeshID, nifMatrix));
}
InstancesMatrix = InstancesMatrix.Concat(result).ToArray();
}
public TerrainRenderer(int id, IEnumerable <FileInfo> files, ZoneType type, ClientDataWrapper wrapper)
: base(id, files, type, wrapper)
{
// Init Terrain Height Calculator
TerrainHeightCache = TerrainHeightCalculator;
AddNifCache(TerrainNifs);
AddNifInstancesYZSwapped(TerrainFixtures);
// Store Terrain
var terrain = TerrainHeightMap;
var vertices = new List <Vector3>();
var indices = new List <TriangleIndex>();
for (int x = 0; x < terrain.Length; x++)
{
var yLength = terrain[x].Length;
for (int y = 0; y < yLength; y++)
{
var height = terrain[x][y];
vertices.Add(new Vector3(x, height, y));
}
}
var width = terrain.Length;
for (int x = 0; x < terrain.Length - 1; x++)
{
var yLength = terrain[x].Length;
for (int y = 0; y < yLength - 1; y++)
{
var tri1 = new TriangleIndex
{
A = (uint)((x + 1) * width + (y + 1)),
B = (uint)((x + 1) * width + y),
C = (uint)(x * width + y),
};
var tri2 = new TriangleIndex
{
A = (uint)((x + 1) * width + (y + 1)),
B = (uint)(x * width + y),
C = (uint)(x * width + (y + 1)),
};
indices.Add(tri1);
indices.Add(tri2);
}
}
// Build Terrain object as a Primitive Nif
var Terrain = new TriangleCollection
{
Vertices = vertices.ToArray(),
Indices = indices.ToArray(),
};
// Add Terrain like a Nif
var insertid = 0;
if (NifCache.Count > 0)
{
insertid = NifCache.Max(kv => kv.Key) + 1;
}
NifCache.Add(insertid, new ClientMesh("terrain", Terrain, Terrain, Terrain));
InstancesMatrix = InstancesMatrix.Concat(new [] { new KeyValuePair <int, Matrix>(insertid, Matrix.Identity) }).ToArray();
}
