Finalized Days Gone support

Author: gildor2

Tools/CompatTable/table.ini

@@ -82,6 +82,13 @@ THQ Nordic
 https://en.wikipedia.org/wiki/Darksiders_Genesis
 https://www.gildor.org/smf/index.php/topic,6903.0.html
 
+[Days Gone (PS4)]
+Y Y Y Y UE4.11
+SIE Bend Studio
+https://en.wikipedia.org/wiki/Days_Gone
+https://www.gildor.org/smf/index.php/topic,6602.0.html
+; -game=daysgone
+
 [Devil's Hunt]
 Y Y Y Y UE4.21
 Layopi Games

Unreal/UnCore.h

@@ -1008,6 +1008,27 @@ struct FVector
 		X = _X; Y = _Y; Z = _Z;
 	}
 
+	void Add(const FVector& Other)
+	{
+		X += Other.X;
+		Y += Other.Y;
+		Z += Other.Z;
+	}
+
+	void Subtract(const FVector& Other)
+	{
+		X -= Other.X;
+		Y -= Other.Y;
+		Z -= Other.Z;
+	}
+
+	void Scale(const FVector& Other)
+	{
+		X *= Other.X;
+		Y *= Other.Y;
+		Z *= Other.Z;
+	}
+
 	void Scale(float value)
 	{
 		X *= value; Y *= value; Z *= value;

Unreal/UnMesh4.cpp

@@ -73,23 +73,6 @@ struct FColorVertexBuffer4
 	}
 };
 
-#if DAYSGONE
-
-struct FDGPackedVector
-{
-	FVectorFixed48 V;
-	uint16 Pad;
-
-	friend FArchive& operator<<(FArchive& Ar, FDGPackedVector& PV)
-	{
-		return Ar << PV.V << PV.Pad;
-	}
-};
-
-SIMPLE_TYPE(FDGPackedVector, uint16);
-
-#endif // DAYSGONE
-
 struct FPositionVertexBuffer4
 {
 	TArray<FVector>	Verts;
@@ -106,24 +89,29 @@ struct FPositionVertexBuffer4
 #if DAYSGONE
 		if (Ar.Game == GAME_DaysGone)
 		{
-			// This happens only for StaticMesh
+			// This is used only for StaticMesh
 			if (S.Stride == 8)
 			{
-				TArray<FDGPackedVector> PackedVerts;
+				TArray<FDGPackedVector64> PackedVerts;
 				PackedVerts.BulkSerialize(Ar);
 				S.Verts.AddUninitialized(PackedVerts.Num());
 				for (int i = 0; i < PackedVerts.Num(); i++)
 				{
-					S.Verts[i] = PackedVerts[i].V;
+					S.Verts[i] = PackedVerts[i];
 				}
 				//todo: should use some bounds to unpack positions, almost works but a bit distorted data
 				return Ar;
 			}
 			else if (S.Stride == 4)
 			{
-				TArray<uint32> PackedVerts;
+				TArray<FDGPackedVector32> PackedVerts;
 				// No idea which format is used here
 				PackedVerts.BulkSerialize(Ar);
+				S.Verts.AddUninitialized(PackedVerts.Num());
+				for (int i = 0; i < PackedVerts.Num(); i++)
+				{
+					S.Verts[i] = PackedVerts[i];
+				}
 				//todo: should use some bounds to unpack positions; position is 32-bit, with full use of all bits
 				return Ar;
 			}
@@ -2334,7 +2322,7 @@ void UStaticMesh4::Serialize(FArchive &Ar)
 #if DAYSGONE
 		if (Ar.Game == GAME_DaysGone)
 		{
-			int32 unk;
+			TArray<int32> unk;
 			Ar << unk;
 		}
 #endif // DAYSGONE
@@ -2506,6 +2494,29 @@ void UStaticMesh4::Serialize(FArchive &Ar)
 	// remaining is SpeedTree data
 	DROP_REMAINING_DATA(Ar);
 
+#if DAYSGONE
+		if (Ar.Game == GAME_DaysGone)
+		{
+			// This game has packed positions, we should unpack it. When loading positions,
+			// we're converting values to range 0..1. Now we should use Bounds for it.
+			FVector Offset = Bounds.Origin;
+			Offset.Subtract(Bounds.BoxExtent);
+			FVector Scale = Bounds.BoxExtent;
+			Scale.Scale(2);
+			for (FStaticMeshLODModel4& Lod : Lods)
+			{
+				if (Lod.PositionVertexBuffer.Stride == 8 || Lod.PositionVertexBuffer.Stride == 4)
+				{
+					for (FVector& V : Lod.PositionVertexBuffer.Verts)
+					{
+						V.Scale(Scale);
+						V.Add(Offset);
+					}
+				}
+			}
+		}
+#endif // DAYSGONE
+
 	if (bCooked)
 	{
 		ConvertMesh();

Unreal/UnMeshTypes.h

@@ -535,7 +535,6 @@ struct FQuatFloat48NoW_Argo
 
 SIMPLE_TYPE(FQuatFloat48NoW_Argo, uint16)
 
-
 #endif // ARGONAUTS
 
 
@@ -692,4 +691,50 @@ struct FQuatPolarEncoded48
 #endif // BORDERLANDS
 
 
+#if DAYSGONE
+
+struct FDGPackedVector32
+{
+	unsigned		X:10, Y:10, Z:10;
+
+	friend FArchive& operator<<(FArchive& Ar, FDGPackedVector32& PV)
+	{
+		return Ar << GET_DWORD(PV);
+	}
+
+	operator FVector() const
+	{
+		FVector V;
+		V.X = X / 1024.0f;
+		V.Y = Y / 1024.0f;
+		V.Z = Z / 1024.0f;
+		return V;
+	}
+};
+
+SIMPLE_TYPE(FDGPackedVector32, uint32);
+
+struct FDGPackedVector64
+{
+	uint16 X, Y, Z, W;
+
+	friend FArchive& operator<<(FArchive& Ar, FDGPackedVector64& PV)
+	{
+		return Ar << PV.X << PV.Y << PV.Z << PV.W;
+	}
+
+	operator FVector() const
+	{
+		FVector V;
+		V.X = X / 65535.0f;
+		V.Y = Y / 65535.0f;
+		V.Z = Z / 65535.0f;
+		return V;
+	}
+};
+
+SIMPLE_TYPE(FDGPackedVector64, uint16);
+
+#endif // DAYSGONE
+
 #endif // __UNMESH_TYPES_H__

readme.txt

@@ -216,6 +216,9 @@ ooz
 
 Changes
 ~~~~~~~
+05.01.2020
+- added Days Gone (PS4) support, required game override -game=daysgone
+
 29.12.2019
 - added option to disable MorphTarget loading: available in UI and with -nomorph command line option