/// <summary>
/// Build immutable parts from a submodel.
/// </summary>
/// <param name="submodel"></param>
public Kkdf2MdlxParser(Mdlx.SubModel submodel)
{
immultableMeshList = submodel.DmaChains
.Select(x => new ImmutableMesh(x))
.ToList();
immutableExportedMesh = PreProcessVerticesAndBuildModel();
}
private ExportedMesh PreProcessVerticesAndBuildModel()
{
var exportedMesh = new ExportedMesh();
exportedMesh.vertexAssignments = new List <VertexIndexWeighted[][]>();
exportedMesh.vertices = new List <Vector4[]>();
int vertexBaseIndex = 0;
int uvBaseIndex = 0;
VertexRef[] ringBuffer = new VertexRef[4];
int ringIndex = 0;
int[] triangleOrder = new int[] { 1, 3, 2 };
foreach (ImmutableMesh meshRoot in immultableMeshList)
{
for (int i = 0; i < meshRoot.VpuPackets.Count; i++)
{
VpuPacket mesh = meshRoot.VpuPackets[i];
var part = new ExportedMesh.Part
{
TextureIndex = meshRoot.TextureIndex,
IsOpaque = meshRoot.IsOpaque,
};
for (int x = 0; x < mesh.Indices.Length; x++)
{
var indexAssign = mesh.Indices[x];
VertexRef vertexRef = new VertexRef(
vertexBaseIndex + indexAssign.Index,
uvBaseIndex + x
);
ringBuffer[ringIndex] = vertexRef;
ringIndex = (ringIndex + 1) & 3;
var flag = indexAssign.Function;
if (flag == VpuPacket.VertexFunction.DrawTriangle ||
flag == VpuPacket.VertexFunction.DrawTriangleDoubleSided)
{
var triRef = new TriangleRef(
ringBuffer[(ringIndex - triangleOrder[0]) & 3],
ringBuffer[(ringIndex - triangleOrder[1]) & 3],
ringBuffer[(ringIndex - triangleOrder[2]) & 3]
);
part.triangleRefList.Add(triRef);
}
if (flag == VpuPacket.VertexFunction.DrawTriangleInverse ||
flag == VpuPacket.VertexFunction.DrawTriangleDoubleSided)
{
var triRef = new TriangleRef(
ringBuffer[(ringIndex - triangleOrder[0]) & 3],
ringBuffer[(ringIndex - triangleOrder[2]) & 3],
ringBuffer[(ringIndex - triangleOrder[1]) & 3]
);
part.triangleRefList.Add(triRef);
}
}
var vertices = mesh.Vertices
.Select(vertex => new Vector4(vertex.X, vertex.Y, vertex.Z, vertex.W))
.ToArray();
exportedMesh.vertices.Add(vertices);
var matrixIndexList = meshRoot.DmaChain.DmaVifs[i].Alaxi;
var vertexAssignmentsList = mesh.GetWeightedVertices(mesh.GetFromMatrixIndices(matrixIndexList));
exportedMesh.vertexAssignments.Add(vertexAssignmentsList);
exportedMesh.uvList.AddRange(
mesh.Indices.Select(x =>
new Vector2(x.U / 16 / 256.0f, x.V / 16 / 256.0f))
);
exportedMesh.partList.Add(part);
vertexBaseIndex += vertexAssignmentsList.Length;
uvBaseIndex += mesh.Indices.Length;
}
}
return(exportedMesh);
}
