public static VTXMesh ReadMesh(BinaryReader br, int offset, int lodNum, int vertexOffset, MDLMesh mdlmesh)
{
br.BaseStream.Seek(offset, SeekOrigin.Begin);
VTXMesh mesh = new VTXMesh();
mesh.num_strip_groups = br.ReadInt32();
mesh.strip_group_offset = br.ReadInt32();
mesh.mesh_flags = br.ReadByte();
mesh.StripGroups = new VTXStripGroup[mesh.num_strip_groups];
for (int i = 0; i < mesh.num_strip_groups; i++)
{
mesh.StripGroups[i] = ReadStripGroup(br, offset + mesh.strip_group_offset + (i * VTXStripGroup.VTX_STRIP_GROUP_SIZE), lodNum, vertexOffset, mdlmesh);
}
return mesh;
}
private static MDLMesh ReadMesh(BinaryReader br, int offset)
{
br.BaseStream.Seek(offset, SeekOrigin.Begin);
MDLMesh_t mesh_t = new MDLMesh_t();
mesh_t.material_index = br.ReadInt32();
mesh_t.model_index = br.ReadInt32();
mesh_t.num_vertices = br.ReadInt32();
mesh_t.vertex_offset = br.ReadInt32();
mesh_t.num_flexes = br.ReadInt32();
mesh_t.flex_offset = br.ReadInt32();
mesh_t.material_type = br.ReadInt32();
mesh_t.material_param = br.ReadInt32();
mesh_t.mesh_id = br.ReadInt32();
mesh_t.mesh_center = new Vector3(br.ReadSingle(), br.ReadSingle(), br.ReadSingle());
mesh_t.vertex_data = new MDLMeshVertexData();
mesh_t.vertex_data.model_vertex_data_ptr = br.ReadInt32();
mesh_t.vertex_data.num_lod_vertices = new int[8];
for (int i = 0; i < 8; i++)
{
mesh_t.vertex_data.num_lod_vertices[i] = br.ReadInt32();
}
mesh_t.unused_array = new int[8]; // 8
for (int i = 0; i < 8; i++)
{
mesh_t.unused_array[i] = br.ReadInt32();
}
MDLMesh mesh = new MDLMesh(mesh_t, srcModel, materials[mesh_t.material_index]);
return mesh;
}
public static VTXStripGroup ReadStripGroup(BinaryReader br, int offset, int lodNum, int vertexOffset, MDLMesh mesh)
{
br.BaseStream.Seek(offset, SeekOrigin.Begin);
VTXStripGroup strGroup = new VTXStripGroup();
strGroup.num_vertices = br.ReadInt32();
strGroup.vertex_offset = br.ReadInt32();
strGroup.num_indices = br.ReadInt32();
strGroup.index_offset = br.ReadInt32();
strGroup.num_strips = br.ReadInt32();
strGroup.strip_offset = br.ReadInt32();
strGroup.strip_group_flags = br.ReadByte();
// Fill vertex arrays
List<Vector3> vertexArray = new List<Vector3>();
List<Vector3> normalArray = new List<Vector3>();
List<Vector2> texcoordArray = new List<Vector2>();
List<VertexPositonNormalColorTexture> verts = new List<VertexPositonNormalColorTexture>();
br.BaseStream.Seek(strGroup.vertex_offset + offset, SeekOrigin.Begin);
for (int i = 0; i < strGroup.num_vertices; i++)
{
VTXVertex vertex = ReadVertex(br);
int vertexID = vertex.orig_mesh_vertex_id + vertexOffset;
// Get vvd info
VVDVertex vvdVertex = VVDReader.vertex_buffer[lodNum][vertexID];
vertexArray.Add(vvdVertex.vertex_position);
normalArray.Add(vvdVertex.vertex_normal);
texcoordArray.Add(vvdVertex.vertex_texcoord);
verts.Add(new VertexPositonNormalColorTexture(vvdVertex.vertex_position, vvdVertex.vertex_normal, new Color4(Color.Blue), vvdVertex.vertex_texcoord));
}
strGroup.Verts = vertexArray;
strGroup.Normals = normalArray;
strGroup.Coords = texcoordArray;
// Fill index array
br.BaseStream.Seek(offset + strGroup.index_offset, SeekOrigin.Begin);
List<uint> indexArray = new List<uint>();
for (int i = 0; i < strGroup.num_indices; i++)
{
indexArray.Add((uint)br.ReadUInt16());
}
strGroup.Indices = indexArray;
// Create SourceModel
RenderItem stripitem = new RenderItem(mesh, mesh.material);
stripitem.verts = verts;
stripitem.nVerts = verts.Count;
// Set IB
stripitem.indices = indexArray;
// Create VB
//stripitem.vb = new HagsVertexBuffer();
//int vertexBytes = verts.Count * VertexPositonNormalColorTexture.SizeInBytes;
//stripitem.vb.SetVB<VertexPositonNormalColorTexture>(verts.ToArray(), vertexBytes, VertexPositonNormalColorTexture.Format, Usage.WriteOnly);
//stripitem.DontOptimize = true;
//stripitem.GenerateIndexBuffer();
strGroup.Strips = new VTXStrip[strGroup.num_strips];
// Process strips
for (int i = 0; i < strGroup.num_strips; i++)
{
RenderItem item = new RenderItem(stripitem, null);
VTXStrip strip = ReadStrip(br, offset + strGroup.strip_offset + (i* VTXStrip.VTX_STRIP_SIZE), indexArray);
item.nVerts = strip.num_vertices;
item.nIndices = strip.num_indices;
item.IndiceStartIndex = strip.index_offset;
item.vertexStartIndex = strip.vertex_offset;
item.DontOptimize = true;
if (strip.strip_flags == 0x02)
item.Type = PrimitiveType.TriangleStrip;
stripitem.items.Add(item);
}
mesh.items.Add(stripitem);
return strGroup;
}