public void AppendMesh(IMeshDecoder <int> srcMesh)
{
var dstMesh = new MeshContent();
dstMesh.Name = srcMesh.Name;
dstMesh.Tag = srcMesh.Tag;
foreach (var prim in srcMesh.Primitives)
{
var vdecl = MeshPrimitiveDecoder.GetVertexDeclaration(prim);
int vbIndex = _UseVertexBuffer(vdecl);
int ibIndex = _UseIndexBuffer();
var geometry = CreateGeometry(vbIndex, ibIndex, prim, vdecl);
if (geometry == null)
{
continue;
}
dstMesh.AddMeshPart(geometry, prim.Material);
}
_Meshes.Add(dstMesh);
}
private MeshGeometryContent CreateGeometry(int vbIndex, int ibIndex, IMeshPrimitiveDecoder <int> primitive, VertexDeclaration vdecl)
{
var partVertices = MeshPrimitiveDecoder.ToXnaVertices(primitive, vdecl);
var partTriangles = primitive.TriangleIndices.ToList();
if (partTriangles.Count == 0)
{
return(null);
}
var vRange = _VertexBuffers[vbIndex].AddVertices(partVertices, vdecl);
var iRange = _IndexBuffers[ibIndex].AddTriangleIndices(partTriangles);
var geometry = new MeshGeometryContent();
geometry.SetVertices(vbIndex, vRange.VertexOffset, vRange.VertexCount);
geometry.SetIndices(ibIndex, iRange.Offset, iRange.Count, partTriangles.Count);
return(geometry);
}