protected override void BuildScene()
{
var maxTextures = this.textures.Length;
SeparateStreamsSubmesh[] submeshes = new SeparateStreamsSubmesh[maxTextures];
this.BuildSubmeshes(maxTextures, submeshes, streamMesh, meshStreams);
var submeshStreams = submeshes.Select(x => (x == null)?null: new BspSubmeshStreams(x, meshStreams,StreamConverterFactory)).ToArray();
var node = new Node();
this.Scene.Nodes.Add(node);
node.Mesh = streamMesh;
foreach (var quake3Face in this.faces)
{
switch (quake3Face.type)
{
case 2: //Patch
this.BuildPatch(quake3Face, submeshStreams[quake3Face.texinfo_id]);
break;
case 1: //Polygon
case 3: //Mesh
for (int i = 0; i < quake3Face.numMeshVerts; ++i)
{
AddVertexToMesh((int)(quake3Face.vertexIndex + this.meshverts[quake3Face.meshVertIndex + i]),submeshStreams[quake3Face.texinfo_id]);
}
break;
case 4: //Billboard
break;
}
}
this.Scene.Geometries.Add(streamMesh);
}
public BspSubmeshStreams(SeparateStreamsSubmesh separateStreamsSubmesh, BspMeshStreams meshStreams,IStreamConverterFactory streamConverterFactory)
{
this.streamConverterFactory = streamConverterFactory;
if (meshStreams.Positions != null)
{
PositionIndices = EnsureStream(separateStreamsSubmesh, Streams.Position, 0);
}
if (meshStreams.Normals != null)
NormalIndices = EnsureStream(separateStreamsSubmesh, Streams.Normal, 0);
if (meshStreams.TexCoord0 != null)
TexCoord0Indices = EnsureStream(separateStreamsSubmesh, Streams.TexCoord, 0);
if (meshStreams.TexCoord1 != null)
TexCoord1Indices = EnsureStream(separateStreamsSubmesh, Streams.TexCoord, 1);
if (meshStreams.Colors != null)
ColorsIndices = EnsureStream(separateStreamsSubmesh, Streams.Color, 0);
}
private ListMeshStream<int> EnsureStream(SeparateStreamsSubmesh separateStreamsSubmesh, string key, int channel)
{
return separateStreamsSubmesh.GetIndexStream(key, channel) as ListMeshStream<int> ?? separateStreamsSubmesh.SetIndexStream(key, channel, new ListMeshStream<int>(streamConverterFactory));
}
private List<Tuple<int, ListMeshStream<int>>> StreamListOrderedByOffset(MeshInputs meshInputs, SeparateStreamsSubmesh subMesh)
{
var streamList = new List<Tuple<int, ListMeshStream<int>>>();
foreach (var meshInput in meshInputs.Inputs.OrderBy(x => x.Offset))
{
var listMeshStream = new ListMeshStream<int>(meshInputs.Count, streamConverterFactory);
streamList.Add(new Tuple<int, ListMeshStream<int>>(meshInput.Offset, listMeshStream));
var key = meshInput.Semantic;
if (key == "VERTEX") key = Streams.Position;
subMesh.SetIndexStream(key, meshInput.Set, listMeshStream);
}
return streamList;
}
private void BuildSubmeshes(int maxTextures, SeparateStreamsSubmesh[] submeshes, SeparateStreamsMesh streamMesh, BspMeshStreams meshStreams)
{
int[] textureToMaterial = new int[maxTextures];
foreach (var quake3Face in this.faces)
{
++textureToMaterial[quake3Face.texinfo_id];
}
for (int i = 0; i < maxTextures; ++i)
{
if (textureToMaterial[i] > 0)
{
submeshes[i] = streamMesh.CreateSubmesh();
int index = this.Scene.Materials.Count;
var baseFileName = Path.Combine(this.GameRootPath, this.textures[i].name);
var imagePath = baseFileName;
if (!File.Exists(imagePath))
{
imagePath = baseFileName + ".jpg";
if (!File.Exists(imagePath))
{
imagePath = baseFileName + ".png";
if (!File.Exists(imagePath))
{
imagePath = baseFileName + ".tga";
if (!File.Exists(imagePath))
{
imagePath = this.textures[i].name;
}
}
}
}
var texture = new FileReferenceImage { Path = imagePath };
this.Scene.Images.Add(texture);
var effect = new SceneEffect { Diffuse = new ImageColorSource { Image = texture }, CullMode = CullMode.Front};
this.Scene.Effects.Add(effect);
var sceneMaterial = new SceneMaterial { Effect = effect };
this.Scene.Materials.Add(sceneMaterial);
submeshes[i].Material = sceneMaterial;
textureToMaterial[i] = index;
}
}
}
