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Stop trying to interpret very large position/rotation/scale values on a Nav Mesh. Instead, forcibly truncate those values to fit inside a 32 bit integer.

Browse Source 
#jira UE-198003

#rb Aris.Theophanidis, jacob.wang

[CL 32725096 by robert seiver in ue5-main branch]
This commit is contained in:
robert seiver
2024-04-04 08:13:46 -04:00
parent aa08d004f7
commit 186a79fd37
1 changed files with 15 additions and 4 deletions
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19
Engine/Source/Runtime/NavigationSystem/Public/NavMesh/RecastNavMeshGenerator.h
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@@ -5,6 +5,7 @@
#include "CoreMinimal.h"
#endif
#include "Stats/Stats.h"
#include "AI/NavigationSystemBase.h"
#include "AI/Navigation/NavigationTypes.h"
#include "AI/Navigation/NavigationInvokerPriority.h"
#include "AI/Navigation/NavigationRelevantData.h"
@@ -222,16 +223,16 @@ struct FRcTileBox
if (FMath::Modf(MaxAsFloat, &UnusedIntPart) == 0)
{
// Return the lower tile
return FMath::Max(IntCastChecked<int32>(FMath::FloorToInt(MaxAsFloat) - 1), MinCoord);
return FMath::Max(ClampToInt32(FMath::FloorToInt(MaxAsFloat) - 1), MinCoord);
}
// Otherwise use default behaviour
return IntCastChecked<int32>(FMath::FloorToInt(MaxAsFloat));
return ClampToInt32(FMath::FloorToInt(MaxAsFloat));
};
const FBox RcAreaBounds = Unreal2RecastBox(UnrealBounds);
XMin = IntCastChecked<int32>(FMath::FloorToInt((RcAreaBounds.Min.X - RcNavMeshOrigin.X) / TileSizeInWorldUnits));
XMin = ClampToInt32(FMath::FloorToInt((RcAreaBounds.Min.X - RcNavMeshOrigin.X) / TileSizeInWorldUnits));
XMax = CalcMaxCoordExclusive((RcAreaBounds.Max.X - RcNavMeshOrigin.X) / TileSizeInWorldUnits, XMin);
YMin = IntCastChecked<int32>(FMath::FloorToInt((RcAreaBounds.Min.Z - RcNavMeshOrigin.Z) / TileSizeInWorldUnits));
YMin = ClampToInt32(FMath::FloorToInt((RcAreaBounds.Min.Z - RcNavMeshOrigin.Z) / TileSizeInWorldUnits));
YMax = CalcMaxCoordExclusive((RcAreaBounds.Max.Z - RcNavMeshOrigin.Z) / TileSizeInWorldUnits, YMin);
}
@@ -240,6 +241,16 @@ struct FRcTileBox
return Point.X >= XMin && Point.X <= XMax
&& Point.Y >= YMin && Point.Y <= YMax;
}
static FORCEINLINE int32 ClampToInt32(const int64 Value)
{
#if !NO_LOGGING
UE_CLOG(!IntFitsIn<int32>(Value), LogNavigation, Warning,
TEXT("FRcTileBox clamped a NavMesh transform value to fit in int32. Old value: %" UINT64_FMT), Value);
#endif // !NO_LOGGING
return static_cast<int32>(FMath::Clamp(Value, MIN_int32, MAX_int32));
}
};
/**