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Fixed a number of build errors with UE build on ue5-main. #358

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Fixed a number of build errors with UE build on ue5-main. #358

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3a8eecb
Fixed a number of build errors with UnrealEngine build on ue5-main (w…
trentpolack Apr 8, 2026
f343906
Manually set Houdini Engine to my local version of Houdini (latest pr…
trentpolack Apr 8, 2026
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4 changes: 2 additions & 2 deletions Source/HoudiniEngine/HoudiniEngine.Build.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -80,7 +80,7 @@ private void LogInformation(string info)

private string GetHFSPath()
{
string HoudiniVersion = "21.0.679";
string HoudiniVersion = "21.0.671"; // TRENT_MOD (4/8/26): Original version is "21.0.679". Modified for what I have locally.
bool bIsRelease = true;
string HFSPath = "";
string RegistryPath = "HKEY_LOCAL_MACHINE\\SOFTWARE\\Side Effects Software";
Expand Down Expand Up @@ -254,7 +254,7 @@ private string GetHFSPath()
}

string Info = string.Format("Houdini Engine : Houdini {0} could not be found. Houdini Engine will not be available in this build.", HoudiniVersion);
LogInformation(Info);
LogError(Info);

return "";
}
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6 changes: 3 additions & 3 deletions Source/HoudiniEngine/Private/HoudiniAnimationTranslator.cpp
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Expand Up @@ -595,13 +595,13 @@ bool FHoudiniAnimationTranslator::CreateAnimationFromMotionClip(UHoudiniOutput*
TSharedPtr<FJsonObject> JsonObject;
if (GetFbxCustomAttributes(GeoId, MeshPartId, RootBoneIndex, JsonObject))
{
TArray<FString> Keys;
TArray<UE::FSharedString> Keys;
JsonObject->Values.GetKeys(Keys);
for (const FString& Key : Keys)
for (const UE::FSharedString& Key : Keys)
{
if (double Value; JsonObject->TryGetNumberField(Key, Value))
{
TArray<FRichCurveKey>& CurveData = FbxCustomAttributes.FindOrAdd(Key);
TArray<FRichCurveKey>& CurveData = FbxCustomAttributes.FindOrAdd(*Key);
CurveData.Add(FRichCurveKey(FrameTime, static_cast<float>(Value)));
}
}
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8 changes: 3 additions & 5 deletions Source/HoudiniEngine/Private/HoudiniEngineUtils.cpp
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Expand Up @@ -8522,7 +8522,7 @@ FString FHoudiniEngineUtils::RSTOrderToString(HAPI_RSTOrder RstOrder)

FString FHoudiniEngineUtils::HapiTransformToString(HAPI_Transform Transform)
{
FStringBuilderBase Output;
TStringBuilderBase<TCHAR> Output;
Output.Appendf(TEXT("P: %f, %f, %f "), Transform.position[0], Transform.position[1], Transform.position[2]);
Output.Appendf(TEXT("Q: %f, %f, %f, %f "), Transform.rotationQuaternion[0], Transform.rotationQuaternion[1],
Transform.rotationQuaternion[2], Transform.rotationQuaternion[3]);
Expand All @@ -8544,9 +8544,7 @@ FString FHoudiniEngineUtils::DumpNode(HAPI_NodeId NodeId)
if(Result != HAPI_RESULT_SUCCESS)
return FString::Printf(TEXT("Failed to get node info: %s\n"), *FHoudiniEngineUtils::GetErrorDescription());

FStringBuilderBase Output;


TStringBuilderBase<TCHAR> Output;
Output.Appendf(TEXT("Node ID: %d\n"), NodeId);
Output.Appendf(TEXT(" Name: %s\n"), *FHoudiniEngineString(NodeInfo.nameSH).ToFString());
Output.Appendf(TEXT(" Type: %s\n"), *NodeTypeToString(NodeInfo.type));
Expand Down Expand Up @@ -8582,7 +8580,7 @@ FString FHoudiniEngineUtils::DumpAttribute(HAPI_NodeId NodeId, HAPI_PartId PartI
return FString::Printf(TEXT("Failed to get attribute info: %s\n"), *FHoudiniEngineUtils::GetErrorDescription());
}

FStringBuilderBase Output;
TStringBuilderBase<TCHAR> Output;
Output.Appendf(TEXT(" Storage: %s\n"), *StorageTypeToString(AttributeInfo.storage));
Output.Appendf(TEXT(" Type: %s\n"), *AttributeTypeToString(AttributeInfo.typeInfo));
Output.Appendf(TEXT(" Tuple Size: %d\n"), AttributeInfo.tupleSize);
Expand Down
2 changes: 1 addition & 1 deletion Source/HoudiniEngine/Private/HoudiniInstanceTranslator.cpp
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Expand Up @@ -1927,7 +1927,7 @@ FHoudiniInstanceTranslator::GetPerInstanceCustomData(
Accessor.GetAttributeData(HAPI_ATTROWNER_POINT, Values);
if (Values.IsEmpty())
{
HOUDINI_LOG_ERROR(TEXT("Could found attribute "), *CurrentAttr);
HOUDINI_LOG_ERROR(TEXT("Could not find attribute: %s"), *CurrentAttr);
return;
}

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2 changes: 1 addition & 1 deletion Source/HoudiniEngine/Private/HoudiniOutputTranslator.cpp
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Expand Up @@ -65,7 +65,7 @@
#include "Components/HierarchicalInstancedStaticMeshComponent.h"
#include "Editor.h"
#include "EditorSupportDelegates.h"
#include "Engine/UserDefinedStruct.h"
#include "StructUtils/UserDefinedStruct.h"
#include "Engine/WorldComposition.h"
#include "FileHelpers.h"
#include "HAL/PlatformFileManager.h"
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6 changes: 3 additions & 3 deletions Source/HoudiniEngineEditor/Private/Tests/HoudiniEditorTestDataLayers.cpp
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Expand Up @@ -178,7 +178,7 @@ bool FHoudiniEditorTestLandscapeDataLayers::RunTest(const FString& Parameters)
auto& BakedOutput = BakedOutputs[0];
HOUDINI_TEST_EQUAL_ON_FAIL(BakedOutput.BakedOutputObjects.Num(), 1, return true);
#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().ElementIt->Value.Value;;
auto& BakedObject = BakedOutput.BakedOutputObjects.begin()->Value;
#else
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().Value();
#endif
Expand Down Expand Up @@ -262,7 +262,7 @@ IMPLEMENT_SIMPLE_HOUDINI_AUTOMATION_TEST(FHoudiniEditorTestInstancesDataLayers,

HOUDINI_TEST_EQUAL_ON_FAIL(BakedOutput.BakedOutputObjects.Num(), 2, return true);
#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7
auto& BakedObject0 = ObjIt.ElementIt->Value.Value;
auto& BakedObject0 = ObjIt->Value;
#else
auto& BakedObject0 = ObjIt.Value();
#endif
Expand All @@ -280,7 +280,7 @@ IMPLEMENT_SIMPLE_HOUDINI_AUTOMATION_TEST(FHoudiniEditorTestInstancesDataLayers,
++ObjIt;

#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7
auto& BakedObject1 = ObjIt.ElementIt->Value.Value;
auto& BakedObject1 = ObjIt->Value;
#else
auto& BakedObject1 = ObjIt.Value();
#endif
Expand Down
6 changes: 3 additions & 3 deletions Source/HoudiniEngineEditor/Private/Tests/HoudiniEditorTestHLOD.cpp
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Expand Up @@ -87,7 +87,7 @@ bool FHoudiniEditorTestLandscapeHLOD::RunTest(const FString& Parameters)
HOUDINI_TEST_EQUAL_ON_FAIL(BakedOutput.BakedOutputObjects.Num(), 1, return true);

#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().ElementIt->Value.Value;
auto& BakedObject = BakedOutput.BakedOutputObjects.begin()->Value;
#else
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().Value();
#endif
Expand Down Expand Up @@ -144,7 +144,7 @@ IMPLEMENT_SIMPLE_HOUDINI_AUTOMATION_TEST(FHoudiniEditorTestInstancesHLOD, "Houdi
HOUDINI_TEST_EQUAL_ON_FAIL(BakedOutput.BakedOutputObjects.Num(), 2, return true);

#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7
auto& BakedObject0 = ObjIt.ElementIt->Value.Value;
auto& BakedObject0 = ObjIt->Value;
#else
auto& BakedObject0 = ObjIt.Value();
#endif
Expand All @@ -159,7 +159,7 @@ IMPLEMENT_SIMPLE_HOUDINI_AUTOMATION_TEST(FHoudiniEditorTestInstancesHLOD, "Houdi
// Check second output instancer has HLODLayer.
++ObjIt;
#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7
auto& BakedObject1 = ObjIt.ElementIt->Value.Value;
auto& BakedObject1 = ObjIt->Value;
#else
auto& BakedObject1 = ObjIt.Value();
#endif
Expand Down
10 changes: 5 additions & 5 deletions Source/HoudiniEngineEditor/Private/Tests/HoudiniEditorTestSkeletalMesh.cpp
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Expand Up @@ -105,7 +105,7 @@ bool FHoudiniEditorTestSkeletalMeshElectra::RunTest(const FString& Parameters)
auto & BakedOutput = BakedOutputs[0];
HOUDINI_TEST_EQUAL_ON_FAIL(BakedOutput.BakedOutputObjects.Num(), 1, return true);
#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().ElementIt->Value.Value;
auto& BakedObject = BakedOutput.BakedOutputObjects.begin()->Value;
#else
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().Value();
#endif
Expand Down Expand Up @@ -206,7 +206,7 @@ bool FHoudiniEditorTestSkeletalMeshElectraDefaultPhysicsAsset::RunTest(const FSt
auto& BakedOutput = BakedOutputs[0];
HOUDINI_TEST_EQUAL_ON_FAIL(BakedOutput.BakedOutputObjects.Num(), 1, return true);
#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().ElementIt->Value.Value;
auto& BakedObject = BakedOutput.BakedOutputObjects.begin()->Value;
#else
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().Value();
#endif
Expand Down Expand Up @@ -312,7 +312,7 @@ bool FHoudiniEditorTestSkeletalMeshElectraCustomPhysicsAsset::RunTest(const FStr
HOUDINI_TEST_EQUAL_ON_FAIL(BakedOutput.BakedOutputObjects.Num(), 1, return true);

#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().ElementIt->Value.Value;
auto& BakedObject = BakedOutput.BakedOutputObjects.begin()->Value;
#else
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().Value();
#endif
Expand Down Expand Up @@ -492,7 +492,7 @@ bool FHoudiniEditorTestSkeletalMeshElectraExistingPhysicsAsset::RunTest(const FS
HOUDINI_TEST_EQUAL_ON_FAIL(BakedOutput.BakedOutputObjects.Num(), 1, return true);

#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().ElementIt->Value.Value;
auto& BakedObject = BakedOutput.BakedOutputObjects.begin()->Value;
#else
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().Value();
#endif
Expand Down Expand Up @@ -600,7 +600,7 @@ bool FHoudiniEditorTestSkeletalMeshElectraExistingSkeleton::RunTest(const FStrin
auto& BakedOutput = BakedOutputs[0];
HOUDINI_TEST_EQUAL_ON_FAIL(BakedOutput.BakedOutputObjects.Num(), 1, return true);
#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().ElementIt->Value.Value;
auto& BakedObject = BakedOutput.BakedOutputObjects.begin()->Value;
#else
auto& BakedObject = BakedOutput.BakedOutputObjects.begin().Value();
#endif
Expand Down