public void Read(BinaryReader reader)
{
SectionType = (SectionType)reader.ReadInt32();
SectionSize = reader.ReadInt32();
reader.BaseStream.Seek(sizeof(short), SeekOrigin.Current); // пропускаем "unknown"
Version = (DffVersion)reader.ReadInt16();
}
private void ParseDataSection(int sectionSize, SectionType parent, DffVersion version)
{
switch (parent)
{
case SectionType.Geometry:
ParseGeometry(version);
break;
case SectionType.Material:
ParseMaterial(sectionSize);
break;
case SectionType.FrameList:
ParseFramesList();
break;
case SectionType.Atomic:
ParseAtomic();
break;
default:
input.BaseStream.Seek(sectionSize, SeekOrigin.Current);
break;
}
}
/// <summary>
/// Обрабатывает секцию Geometry
/// Считывает вершины, треугольники (индексы вершин), нормали, текстурные координаты.
/// </summary>
private void ParseGeometry(DffVersion version)
{
ModelMeshData mesh = new ModelMeshData();
GeometrySectionFlags flags = (GeometrySectionFlags)input.ReadInt16();
input.BaseStream.Seek(sizeof(short), SeekOrigin.Current); // unknown
int trianglesCount = input.ReadInt32();
int verticesCount = input.ReadInt32();
input.BaseStream.Seek(sizeof(int), SeekOrigin.Current); // morphTargetCount aka frameCount
if (version < DffVersion.GTA_VC_2)
{
// geometry has lighting data. Ignoring it.
// TODO :: we can use it for rendering!!!
input.BaseStream.Seek(12, SeekOrigin.Current);
}
if ((flags & GeometrySectionFlags.MultipleTextureCoords) != GeometrySectionFlags.None)
{
Log.Instance.Print("Multiple TexCoords sets are provided but used only the first of it!", MessageType.Warning);
}
if ((flags & GeometrySectionFlags.HasColorInfo) != GeometrySectionFlags.None)
{
ReadColors(mesh, verticesCount);
}
else
{
FillColors(mesh, verticesCount);
}
if ((flags & GeometrySectionFlags.HasTextureCoords) != GeometrySectionFlags.None)
{
ReadTextureCoords(mesh, verticesCount);
}
ReadTriangles(mesh, trianglesCount);
input.BaseStream.Seek(4 * sizeof(float), SeekOrigin.Current); // ignoring bounding sphere (x, y, z, radius)
input.BaseStream.Seek(2 * sizeof(int), SeekOrigin.Current); // hasPosition, hasNormal (not used)
ReadVertices(mesh, verticesCount);
if ((flags & GeometrySectionFlags.HasNormalsInfo) != GeometrySectionFlags.None)
{
ReadNormals(mesh, verticesCount);
}
modelData.Meshes.Add(mesh);
}
public void Read(BinaryReader reader)
{
SectionType = (SectionType)reader.ReadInt32();
SectionSize = reader.ReadInt32();
reader.BaseStream.Seek(sizeof(short), SeekOrigin.Current); // пропускаем "unknown"
Version = (DffVersion)reader.ReadInt16();
}
/// <summary>
/// Обрабатывает секцию Geometry
/// Считывает вершины, треугольники (индексы вершин), нормали, текстурные координаты.
/// </summary>
private void ParseGeometry(DffVersion version)
{
ModelMeshData mesh = new ModelMeshData();
GeometrySectionFlags flags = (GeometrySectionFlags)input.ReadInt16();
input.BaseStream.Seek(sizeof(short), SeekOrigin.Current); // unknown
int trianglesCount = input.ReadInt32();
int verticesCount = input.ReadInt32();
input.BaseStream.Seek(sizeof(int), SeekOrigin.Current); // morphTargetCount aka frameCount
if (version < DffVersion.GTA_VC_2)
{
// geometry has lighting data. Ignoring it.
// TODO :: we can use it for rendering!!!
input.BaseStream.Seek(12, SeekOrigin.Current);
}
if ((flags & GeometrySectionFlags.MultipleTextureCoords) != GeometrySectionFlags.None)
Log.Instance.Print("Multiple TexCoords sets are provided but used only the first of it!", MessageType.Warning);
if ((flags & GeometrySectionFlags.HasColorInfo) != GeometrySectionFlags.None)
ReadColors(mesh, verticesCount);
else
FillColors(mesh, verticesCount);
if ((flags & GeometrySectionFlags.HasTextureCoords) != GeometrySectionFlags.None)
ReadTextureCoords(mesh, verticesCount);
ReadTriangles(mesh, trianglesCount);
input.BaseStream.Seek(4 * sizeof(float), SeekOrigin.Current); // ignoring bounding sphere (x, y, z, radius)
input.BaseStream.Seek(2 * sizeof(int), SeekOrigin.Current); // hasPosition, hasNormal (not used)
ReadVertices(mesh, verticesCount);
if ((flags & GeometrySectionFlags.HasNormalsInfo) != GeometrySectionFlags.None)
ReadNormals(mesh, verticesCount);
modelData.Meshes.Add(mesh);
}
private void ParseDataSection(int sectionSize, SectionType parent, DffVersion version)
{
switch(parent)
{
case SectionType.Geometry:
ParseGeometry(version);
break;
case SectionType.Material:
ParseMaterial(sectionSize);
break;
case SectionType.FrameList:
ParseFramesList();
break;
case SectionType.Atomic:
ParseAtomic();
break;
default:
input.BaseStream.Seek(sectionSize, SeekOrigin.Current);
break;
}
}