public GCAttach(byte[] file, int address, uint imageBase, Dictionary <int, string> labels)
{
if (labels.ContainsKey(address))
{
Name = labels[address];
}
else
{
Name = "attach_" + address.ToString("X8");
}
// The struct is 36/0x24 bytes long.
VertexData = new VertexData();
GeometryData = new GeometryData();
uint vertex_attribute_offset = ByteConverter.ToUInt32(file, address) - imageBase;
int unknown_1 = ByteConverter.ToInt32(file, address + 4);
int opaque_geometry_data_offset = (int)(ByteConverter.ToInt32(file, address + 8) - imageBase);
int translucent_geometry_data_offset = (int)(ByteConverter.ToInt32(file, address + 12) - imageBase);
int opaque_geometry_count = ByteConverter.ToInt16(file, address + 16);
int translucent_geometry_count = ByteConverter.ToInt16(file, address + 18);
Bounds = new BoundingSphere(file, address + 20);
VertexData.Load(file, vertex_attribute_offset, imageBase);
if (opaque_geometry_count > 0)
{
GeometryData.Load(file, opaque_geometry_data_offset, imageBase, opaque_geometry_count, GeometryType.Opaque);
}
if (translucent_geometry_count > 0)
{
GeometryData.Load(file, translucent_geometry_data_offset, imageBase, translucent_geometry_count, GeometryType.Translucent);
}
}
public void ExportOBJ(string file_name)
{
StringWriter writer = new StringWriter();
if (VertexData.CheckAttribute(GXVertexAttribute.Position))
{
for (int i = 0; i < VertexData.Positions.Count; i++)
{
Vector3 pos = VertexData.Positions[i];
writer.WriteLine($"v {pos.X} {pos.Y} {pos.Z}");
}
}
if (VertexData.CheckAttribute(GXVertexAttribute.Normal))
{
for (int i = 0; i < VertexData.Normals.Count; i++)
{
Vector3 nrm = VertexData.Normals[i];
writer.WriteLine($"vn {nrm.X} {nrm.Y} {nrm.Z}");
}
}
if (VertexData.CheckAttribute(GXVertexAttribute.Tex0))
{
for (int i = 0; i < VertexData.TexCoord_0.Count; i++)
{
Vector2 tex = VertexData.TexCoord_0[i];
writer.WriteLine($"vt {tex.X} {tex.Y}");
}
}
int mesh_index = 0;
foreach (Mesh m in GeometryData.OpaqueMeshes)
{
writer.WriteLine($"o mesh_{ mesh_index++ }");
foreach (Primitive p in m.Primitives)
{
List <Vertex> triangles = p.ToTriangles();
if (triangles == null)
{
continue;
}
for (int i = 0; i < triangles.Count; i += 3)
{
int pos_1 = (int)triangles[i].PositionIndex;
int pos_2 = (int)triangles[i + 1].PositionIndex;
int pos_3 = (int)triangles[i + 2].PositionIndex;
string empty = "";
int tex_1 = 0; int tex_2 = 0; int tex_3 = 0;
int nrm_1 = 0; int nrm_2 = 0; int nrm_3 = 0;
bool has_tex = VertexData.TexCoord_0.Count > 0;
bool has_nrm = VertexData.Normals.Count > 0;
if (has_tex)
{
tex_1 = (int)triangles[i].UVIndex;
tex_2 = (int)triangles[i + 1].UVIndex;
tex_3 = (int)triangles[i + 2].UVIndex;
}
if (has_nrm)
{
nrm_1 = (int)triangles[i].NormalIndex;
nrm_2 = (int)triangles[i + 1].NormalIndex;
nrm_3 = (int)triangles[i + 2].NormalIndex;
}
string v1 = $"{pos_1 + 1}{(has_tex ? "/" + tex_1.ToString() : empty) }{(!has_tex ? "/" : empty) + (has_nrm ? "/" + nrm_1.ToString() : empty)}";
string v2 = $"{pos_2 + 1}{(has_tex ? "/" + tex_2.ToString() : empty) }{(!has_tex ? "/" : empty) + (has_nrm ? "/" + nrm_2.ToString() : empty)}";
string v3 = $"{pos_3 + 1}{(has_tex ? "/" + tex_3.ToString() : empty) }{(!has_tex ? "/" : empty) + (has_nrm ? "/" + nrm_3.ToString() : empty)}";
writer.WriteLine($"f { v1 } { v2 } { v3 }");
}
}
}
foreach (Mesh m in GeometryData.TranslucentMeshes)
{
foreach (Primitive p in m.Primitives)
{
List <Vertex> triangles = p.ToTriangles();
if (triangles == null)
{
continue;
}
for (int i = 0; i < triangles.Count; i += 3)
{
int pos_1 = (int)triangles[i].PositionIndex;
int pos_2 = (int)triangles[i + 1].PositionIndex;
int pos_3 = (int)triangles[i + 2].PositionIndex;
writer.WriteLine($"f {pos_1 + 1} {pos_2 + 1} {pos_3 + 1}");
}
}
}
File.WriteAllText(file_name, writer.ToString());
}
