/// <inheritdoc />
public void BuildMesh(Tile tile, Mesh mesh)
{
var gameObject = new GameObject(mesh.Name);
var uMesh = new UnityEngine.Mesh();
uMesh.vertices = mesh.Vertices;
uMesh.triangles = mesh.Triangles;
uMesh.colors = mesh.Colors;
uMesh.uv = mesh.Uvs;
uMesh.uv2 = mesh.Uvs2;
uMesh.uv3 = mesh.Uvs3;
uMesh.RecalculateNormals();
gameObject.isStatic = true;
gameObject.AddComponent <MeshFilter>().mesh = uMesh;
// TODO use TextureIndex to select proper material.
string texture = tile.QuadKey.LevelOfDetail == 16
? @"Materials/SurfaceTexturedColored"
: @"Materials/SurfaceColored";
gameObject.AddComponent <MeshRenderer>().sharedMaterial = _materialProvider.GetSharedMaterial(texture);
gameObject.transform.parent = tile.GameObject.transform;
}
/// <inheritdoc />
public void BuildFromMesh(Tile tile, Mesh mesh)
{
var gameObject = new GameObject(mesh.Name);
var uMesh = new UnityEngine.Mesh();
uMesh.vertices = mesh.Vertices;
uMesh.triangles = mesh.Triangles;
uMesh.colors = mesh.Colors;
uMesh.uv = mesh.Uvs;
uMesh.uv2 = mesh.Uvs2;
uMesh.uv3 = mesh.Uvs3;
uMesh.RecalculateNormals();
gameObject.isStatic = true;
gameObject.AddComponent <MeshFilter>().mesh = uMesh;
gameObject.AddComponent <MeshRenderer>().sharedMaterial = _materialProvider.GetSharedMaterial(mesh.TextureIndex);
gameObject.transform.parent = tile.GameObject.transform;
}
/// <summary> Builds mesh object and notifies observers. </summary>
/// <remarks> Unity has vertex count limit and spliiting meshes here is quite expensive operation. </remarks>
private static void BuildMesh(Tile tile, IList <IObserver <MapData> > observers, ITrace trace,
string name, Vector3[] worldPoints, int[] triangles, Color[] unityColors,
Vector2[] unityUvs, Vector2[] unityUvs2, Vector2[] unityUvs3)
{
if (worldPoints.Length < VertexLimit)
{
Mesh mesh = new Mesh(name, 0, worldPoints, triangles, unityColors, unityUvs, unityUvs2, unityUvs3);
NotifyObservers(new MapData(tile, new Union <Element, Mesh>(mesh)), observers);
return;
}
trace.Warn(TraceCategory, "Mesh '{0}' has more vertices than allowed by Unity: {1}. Will try to split..",
name, worldPoints.Length.ToString());
if (worldPoints.Length != triangles.Length)
{
// TODO handle this case properly
trace.Warn(TraceCategory, "Cannot split mesh {0}: vertecies count != triangles count", name);
return;
}
int parts = (int)Math.Ceiling((float)worldPoints.Length / VertexLimit);
for (int i = 0; i < parts; ++i)
{
var start = i * VertexLimit;
var end = Math.Min(start + VertexLimit, worldPoints.Length);
Mesh mesh = new Mesh(name + i, 0,
worldPoints.Skip(start).Take(end - start).ToArray(),
i == 0
? triangles.Skip(start).Take(end - start).ToArray()
: triangles.Skip(start).Take(end - start).Select(tri => tri - start).ToArray(),
unityColors.Skip(start).Take(end - start).ToArray(),
unityUvs.Skip(start).Take(end - start).ToArray(),
unityUvs2.Skip(start).Take(end - start).ToArray(),
unityUvs3.Skip(start).Take(end - start).ToArray());
NotifyObservers(new MapData(tile, new Union <Element, Mesh>(mesh)), observers);
}
}