public static VertexIndexWeighted[][] GetWeightedVertices(this VpuPacket vpu, VertexBox[] vertices)
{
var flatVertices = vertices.SelectMany(x => x.VertexIndices, (x, vertexIndex) => new VertexIndexWeighted[]
{
new VertexIndexWeighted
{
MatrixIndex = x.MatrixIndex,
VertexIndex = vertexIndex
}
}).ToArray();
if ((vpu.VertexWeightedIndices?.Length ?? 0) == 0)
{
return(flatVertices);
}
var index = 0;
var outVertices = new VertexIndexWeighted[vpu.VertexWeightedCount][];
foreach (var slice in vpu.VertexWeightedIndices)
{
foreach (var desc in slice)
{
outVertices[index++] = desc.Select(x => flatVertices[x][0]).ToArray();
}
}
return(outVertices);
}
public static VertexBox[] GetFromMatrixIndices(this VpuPacket vpu, int[] matrixIndices)
{
var matrixVertices = new VertexBox[vpu.VertexRange.Length];
for (int i = 0, j = 0; i < vpu.VertexRange.Length; i++)
{
matrixVertices[i] = new VertexBox
{
MatrixIndex = matrixIndices[i],
VertexIndices = Enumerable.Range(j, vpu.VertexRange[i]).ToArray()
};
j += vpu.VertexRange[i];
}
return(matrixVertices);
}