private void BuildFace(ref SourceFace face, BspSubmeshStreams subMesh)
{
Vertex[] faceVertices = new Vertex[face.numedges];
var plane = this.planes[face.planenum];
var texture_id = this.texInfo[face.texinfo].texdata;
Float2 minUV0 = new Float2(float.MaxValue, float.MaxValue);
Float2 minUV1 = new Float2(float.MaxValue, float.MaxValue);
Float2 maxUV1 = new Float2(float.MinValue, float.MinValue);
int nextShouldBe = -1;
for (int index = 0; index < faceVertices.Length; index++)
{
var listOfEdgesIndex = face.firstedge + index;
if (listOfEdgesIndex >= this.listOfEdges.Length)
{
throw new BspFormatException(
string.Format("Edge list index {0} is out of range [0..{1}]", listOfEdgesIndex, this.listOfEdges.Length - 1));
}
var edgeIndex = this.listOfEdges[listOfEdgesIndex];
if (edgeIndex >= this.edges.Length)
{
throw new BspFormatException(
string.Format("Edge index {0} is out of range [0..{1}]", edgeIndex, this.edges.Length - 1));
}
SourceEdge edge;
if (edgeIndex >= 0)
{
edge = this.edges[edgeIndex];
}
else
{
var flippedEdge = this.edges[-edgeIndex];
edge = new SourceEdge { vertex0 = flippedEdge.vertex1, vertex1 = flippedEdge.vertex0 };
}
var edgesvertex0 = edge.vertex0;
if (edgesvertex0 >= this.vertices.Length)
{
throw new BspFormatException(
string.Format("Vertex index {0} is out of range [0..{1}]", edgesvertex0, this.vertices.Length - 1));
}
var edgesvertex1 = edge.vertex1;
if (edgesvertex1 >= this.vertices.Length)
{
throw new BspFormatException(
string.Format("Vertex index {0} is out of range [0..{1}]", edgesvertex1, this.vertices.Length - 1));
}
if (nextShouldBe >= 0 && nextShouldBe != edgesvertex0)
{
throw new BspFormatException(string.Format("Wrong edge order"));
}
nextShouldBe = edgesvertex1;
Vertex vertex;
this.BuildVertex(
this.vertices[(short)edgesvertex0],
plane.normal,
//(face.side == 0) ? plane.normal : -plane.normal,
face,
ref this.texInfo[face.texinfo],
out vertex);
faceVertices[index] = vertex;
if (minUV0.X > vertex.UV0.X)
{
minUV0.X = vertex.UV0.X;
}
if (minUV0.Y > vertex.UV0.Y)
{
minUV0.Y = vertex.UV0.Y;
}
if (minUV1.X > vertex.UV1.X)
{
minUV1.X = vertex.UV1.X;
}
if (minUV1.Y > vertex.UV1.Y)
{
minUV1.Y = vertex.UV1.Y;
}
if (maxUV1.X < vertex.UV1.X)
{
maxUV1.X = vertex.UV1.X;
}
if (maxUV1.Y < vertex.UV1.Y)
{
maxUV1.Y = vertex.UV1.Y;
}
}
if (this.textures[texture_id].name == "TOOLS/TOOLSSKYBOX")
{
minUV0.X = 0;
minUV0.Y = 0;
for (int j = 0; j < (int)face.numedges; ++j)
{
faceVertices[j].UV0 = new Float3(0, 0, 0);
}
}
int[] indices = new int[faceVertices.Length];
for (int j = 0; j < faceVertices.Length; ++j)
{
meshStreams.Positions.Add(faceVertices[j].Position);
meshStreams.Normals.Add(faceVertices[j].Normal);
meshStreams.Colors.Add(faceVertices[j].Color);
meshStreams.TexCoord0.Add(new Float2(faceVertices[j].UV0.X, faceVertices[j].UV0.Y));
meshStreams.TexCoord1.Add(new Float2(faceVertices[j].UV1.X, faceVertices[j].UV1.Y));
}
for (int j = 1; j < faceVertices.Length - 1; ++j)
{
subMesh.AddToAllStreams(indices[0]);
subMesh.AddToAllStreams(indices[j]);
subMesh.AddToAllStreams(indices[j + 1]);
}
}
//private void BuildSubmeshes(int maxTextures)
//{
// int[] textureToMaterial = new int[maxTextures];
// foreach (var quake3Face in this.faces)
// {
// ++textureToMaterial[this.texInfo[quake3Face.texinfo].texdata];
// }
// for (int i = 0; i < maxTextures; ++i)
// {
// if (textureToMaterial[i] > 0)
// {
// int index = this.Scene.Materials.Count;
// var baseFileName = this.GetMaterialFileName(i);
// var imagePath = baseFileName;
// var texture = new FileReferenceImage { Path = imagePath };
// this.Scene.Images.Add(texture);
// var effect = new SceneEffect
// {
// //Diffuse = new ImageColorSource { Image = texture }
// };
// this.Scene.Effects.Add(effect);
// var sceneMaterial = new SceneMaterial { Effect = effect };
// this.Scene.Materials.Add(sceneMaterial);
// submeshes[i].Material = sceneMaterial;
// textureToMaterial[i] = index;
// }
// }
//}
//private void BuildVisibilityList()
//{
// for (int i = 0; i < leaves.Length; ++i)
// {
// Dictionary<int, bool> map = new Dictionary<int, bool>();
// if (leaves[i].cluster >= 0)
// foreach (var c in clusters[leaves[i].cluster].visiblity)
// foreach (var l in clusters[c].lists)
// map[l] = true;
// leaves[i].VisibleLeaves = new List<int>();
// foreach (var j in map.Keys)
// if (i != j)
// leaves[i].VisibleLeaves.Add(j);
// }
//}
private void BuildVertex(Float3 vector3, Float3 n, SourceFace f, ref SourceTexInfo surf, out Vertex res)
{
res = new Vertex
{
Position = vector3,
Normal = n,
Color = Color.White,
UV0 =
new Float3(
Float3.Dot(surf.vectorS, vector3) + surf.distS, Float3.Dot(surf.vectorT, vector3) + surf.distT, 0.0f),
UV1 =
new Float3(
Float3.Dot(surf.lm_vectorS, vector3) + surf.lm_distS - f.LightmapTextureMinsInLuxels[0],
Float3.Dot(surf.lm_vectorT, vector3) + surf.lm_distT - f.LightmapTextureMinsInLuxels[1],
0.0f)
};
//if (f.LightmapTextureSizeInLuxels[0] == 0)
res.UV1.X = (res.UV1.X + this.safeOffset) / (f.LightmapTextureSizeInLuxels[0] + 1.0f + this.safeBorderWidth);
res.UV1.Y = (res.UV1.Y + this.safeOffset) / (f.LightmapTextureSizeInLuxels[1] + 1.0f + this.safeBorderWidth);
SourceTexData tex = this.textures[surf.texdata];
res.UV0 = new Float3(
res.UV0.X / ((tex.width != 0) ? tex.width : 256.0f), res.UV0.Y / ((tex.height != 0) ? tex.height : 256.0f), 0.0f);
}
protected virtual void ReadFace(ref SourceFace face)
{
this.Stream.ReadUInt32();
//source.ReadBytes(4);
face.planenum = this.Stream.ReadUInt16(); // the plane number
face.side = (byte)this.Stream.ReadByte(); // faces opposite to the node's plane direction
face.onNode = (byte)this.Stream.ReadByte(); // 1 of on node, 0 if in leaf
face.firstedge = this.Stream.ReadInt32(); // index into surfedges
face.numedges = this.Stream.ReadInt16(); // number of surfedges
face.texinfo = this.Stream.ReadInt16(); // texture info
face.dispinfo = this.Stream.ReadInt16(); // displacement info
this.Stream.ReadBytes(50);
face.origFace = this.Stream.ReadInt32(); // original face this was split from
face.smoothingGroups = this.Stream.ReadUInt32(); // lightmap smoothing group
}