public FRawStaticIndexBuffer(FArchive Ar) : this()
{
if (Ar.Ver < EUnrealEngineObjectUE4Version.SUPPORT_32BIT_STATIC_MESH_INDICES)
{
Indices16 = Ar.ReadBulkArray <ushort>();
}
else
{
var is32bit = Ar.ReadBoolean();
var data = Ar.ReadBulkArray <byte>();
var tempAr = new FByteArchive("IndicesReader", data, Ar.Versions);
if (Ar.Versions["RawIndexBuffer.HasShouldExpandTo32Bit"])
{
var bShouldExpandTo32Bit = Ar.ReadBoolean();
}
if (tempAr.Length == 0)
{
tempAr.Dispose();
return;
}
if (is32bit)
{
var count = (int)tempAr.Length / 4;
Indices32 = tempAr.ReadArray <uint>(count);
}
else
{
var count = (int)tempAr.Length / 2;
Indices16 = tempAr.ReadArray <ushort>(count);
}
tempAr.Dispose();
}
}
public FRawStaticIndexBuffer(FArchive Ar) : this()
{
if (Ar.Ver < UE4Version.VER_UE4_SUPPORT_32BIT_STATIC_MESH_INDICES)
{
Indices16 = Ar.ReadBulkArray <ushort>();
}
else
{
var is32bit = Ar.ReadBoolean();
var data = Ar.ReadBulkArray <byte>();
var tempAr = new FByteArchive("IndicesReader", data, Ar.Versions);
if (Ar.Game >= EGame.GAME_UE4_25)
{
Ar.Position += 4;
}
if (tempAr.Length == 0)
{
tempAr.Dispose();
return;
}
if (is32bit)
{
var count = (int)tempAr.Length / 4;
Indices32 = tempAr.ReadArray <uint>(count);
}
else
{
var count = (int)tempAr.Length / 2;
Indices16 = tempAr.ReadArray <ushort>(count);
}
tempAr.Dispose();
}
}
public FStaticMeshLODResources(FAssetArchive Ar)
{
var stripDataFlags = Ar.Read <FStripDataFlags>();
Sections = Ar.ReadArray(() => new FStaticMeshSection(Ar));
MaxDeviation = Ar.Read <float>();
if (Ar.Game < EGame.GAME_UE4_23)
{
if (!stripDataFlags.IsDataStrippedForServer() && !stripDataFlags.IsClassDataStripped((byte)EClassDataStripFlag.CDSF_MinLodData))
{
SerializeBuffersLegacy(Ar, stripDataFlags);
}
return;
}
var bIsLODCookedOut = Ar.ReadBoolean();
var bInlined = Ar.ReadBoolean();
if (Ar.Game == EGame.GAME_ROGUECOMPANY)
{
bInlined = true;
}
if (!stripDataFlags.IsDataStrippedForServer() && !bIsLODCookedOut)
{
if (bInlined)
{
SerializeBuffers(Ar);
if (Ar.Game == EGame.GAME_ROGUECOMPANY)
{
Ar.Position += 10;
}
}
else
{
var bulkData = new FByteBulkData(Ar);
if (bulkData.Header.ElementCount > 0)
{
var tempAr = new FByteArchive("StaticMeshBufferReader", bulkData.Data, Ar.Versions);
SerializeBuffers(tempAr);
tempAr.Dispose();
}
// https://github.com/EpicGames/UnrealEngine/blob/4.27/Engine/Source/Runtime/Engine/Private/StaticMesh.cpp#L560
Ar.Position += 8; // DepthOnlyNumTriangles + Packed
Ar.Position += 4 * 4 + 2 * 4 + 2 * 4 + 5 * 2 * 4;
// StaticMeshVertexBuffer = 2x int32, 2x bool
// PositionVertexBuffer = 2x int32
// ColorVertexBuffer = 2x int32
// IndexBuffer = int32 + bool
// ReversedIndexBuffer
// DepthOnlyIndexBuffer
// ReversedDepthOnlyIndexBuffer
// WireframeIndexBuffer
if (FUE5ReleaseStreamObjectVersion.Get(Ar) < FUE5ReleaseStreamObjectVersion.Type.RemovingTessellation)
{
Ar.Position += 2 * 4; // AdjacencyIndexBuffer
}
}
}
// FStaticMeshBuffersSize
// uint32 SerializedBuffersSize = 0;
// uint32 DepthOnlyIBSize = 0;
// uint32 ReversedIBsSize = 0;
Ar.Position += 12;
}
