void ImportSkeletalMeshLOD( class USkeletalMesh* SelectedSkelMesh, const FString& Filename, int32 LODLevel )
{
// Check the file extension for FBX. Anything that isn't .FBX is rejected
const FString FileExtension = FPaths::GetExtension(Filename);
const bool bIsFBX = FCString::Stricmp(*FileExtension, TEXT("FBX")) == 0;
if (bIsFBX)
{
#if WITH_APEX_CLOTHING
FClothingBackup ClothingBackup;
if(LODLevel == 0)
{
ApexClothingUtils::BackupClothingDataFromSkeletalMesh(SelectedSkelMesh, ClothingBackup);
}
#endif// #if WITH_APEX_CLOTHING
UnFbx::FFbxImporter* FFbxImporter = UnFbx::FFbxImporter::GetInstance();
// don't import material and animation
UnFbx::FBXImportOptions* ImportOptions = FFbxImporter->GetImportOptions();
ImportOptions->bImportMaterials = false;
ImportOptions->bImportTextures = false;
ImportOptions->bImportAnimations = false;
if ( !FFbxImporter->ImportFromFile( *Filename, FPaths::GetExtension( Filename ) ) )
{
// Log the error message and fail the import.
FFbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, LOCTEXT("FBXImport_ParseFailed", "FBX file parsing failed.")), FFbxErrors::Generic_FBXFileParseFailed);
}
else
{
bool bUseLODs = true;
int32 MaxLODLevel = 0;
TArray< TArray<FbxNode*>* > MeshArray;
TArray<FString> LODStrings;
TArray<FbxNode*>* MeshObject = NULL;;
// Populate the mesh array
FFbxImporter->FillFbxSkelMeshArrayInScene(FFbxImporter->Scene->GetRootNode(), MeshArray, false);
// Nothing found, error out
if (MeshArray.Num() == 0)
{
FFbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, LOCTEXT("FBXImport_NoMesh", "No meshes were found in file.")), FFbxErrors::Generic_MeshNotFound);
FFbxImporter->ReleaseScene();
return;
}
MeshObject = MeshArray[0];
// check if there is LODGroup for this skeletal mesh
for (int32 j = 0; j < MeshObject->Num(); j++)
{
FbxNode* Node = (*MeshObject)[j];
if (Node->GetNodeAttribute() && Node->GetNodeAttribute()->GetAttributeType() == FbxNodeAttribute::eLODGroup)
{
// get max LODgroup level
if (MaxLODLevel < (Node->GetChildCount() - 1))
{
MaxLODLevel = Node->GetChildCount() - 1;
}
}
}
// No LODs found, switch to supporting a mesh array containing meshes instead of LODs
if (MaxLODLevel == 0)
{
bUseLODs = false;
MaxLODLevel = SelectedSkelMesh->LODInfo.Num();
}
// Create LOD dropdown strings
LODStrings.AddZeroed(MaxLODLevel + 1);
LODStrings[0] = FString::Printf( TEXT("Base") );
for(int32 i = 1; i < MaxLODLevel + 1; i++)
{
LODStrings[i] = FString::Printf(TEXT("%d"), i);
}
int32 SelectedLOD = LODLevel;
if (SelectedLOD > SelectedSkelMesh->LODInfo.Num())
{
// Make sure they don't manage to select a bad LOD index
FFbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Warning, FText::Format(LOCTEXT("FBXImport_InvalidLODIdx", "Invalid mesh LOD index {0}, no prior LOD index exists"), FText::AsNumber(SelectedLOD))), FFbxErrors::Generic_Mesh_LOD_InvalidIndex);
}
else
{
TArray<FbxNode*> SkelMeshNodeArray;
if (bUseLODs || ImportOptions->bImportMorph)
{
for (int32 j = 0; j < MeshObject->Num(); j++)
{
FbxNode* Node = (*MeshObject)[j];
if (Node->GetNodeAttribute() && Node->GetNodeAttribute()->GetAttributeType() == FbxNodeAttribute::eLODGroup)
{
if (Node->GetChildCount() > SelectedLOD)
{
SkelMeshNodeArray.Add(Node->GetChild(SelectedLOD));
}
else // in less some LODGroups have less level, use the last level
{
SkelMeshNodeArray.Add(Node->GetChild(Node->GetChildCount() - 1));
}
}
else
{
SkelMeshNodeArray.Add(Node);
}
}
}
// Import mesh
USkeletalMesh* TempSkelMesh = NULL;
// @todo AssetImportData does this temp skeletal mesh need import data?
UFbxSkeletalMeshImportData* TempAssetImportData = NULL;
TempSkelMesh = (USkeletalMesh*)FFbxImporter->ImportSkeletalMesh(GetTransientPackage(), bUseLODs? SkelMeshNodeArray: *MeshObject, NAME_None, (EObjectFlags)0, TempAssetImportData);
// Add imported mesh to existing model
bool bImportSucceeded = false;
if( TempSkelMesh )
{
bImportSucceeded = FFbxImporter->ImportSkeletalMeshLOD(TempSkelMesh, SelectedSkelMesh, SelectedLOD);
// Mark package containing skeletal mesh as dirty.
SelectedSkelMesh->MarkPackageDirty();
}
if(ImportOptions->bImportMorph)
{
FFbxImporter->ImportFbxMorphTarget(SkelMeshNodeArray, SelectedSkelMesh, SelectedSkelMesh->GetOutermost(), SelectedLOD);
}
if (bImportSucceeded)
{
// Notification of success
FNotificationInfo NotificationInfo(FText::GetEmpty());
NotificationInfo.Text = FText::Format(NSLOCTEXT("UnrealEd", "LODImportSuccessful", "Mesh for LOD {0} imported successfully!"), FText::AsNumber(SelectedLOD));
NotificationInfo.ExpireDuration = 5.0f;
FSlateNotificationManager::Get().AddNotification(NotificationInfo);
}
else
{
// Notification of failure
FNotificationInfo NotificationInfo(FText::GetEmpty());
NotificationInfo.Text = FText::Format(NSLOCTEXT("UnrealEd", "LODImportFail", "Failed to import mesh for LOD {0}!"), FText::AsNumber(SelectedLOD));
NotificationInfo.ExpireDuration = 5.0f;
FSlateNotificationManager::Get().AddNotification(NotificationInfo);
}
}
// Cleanup
for (int32 i=0; i<MeshArray.Num(); i++)
{
delete MeshArray[i];
}
}
FFbxImporter->ReleaseScene();
#if WITH_APEX_CLOTHING
if(LODLevel == 0)
{
ApexClothingUtils::ReapplyClothingDataToSkeletalMesh(SelectedSkelMesh, ClothingBackup);
}
ApexClothingUtils::ReImportClothingSectionsFromClothingAsset(SelectedSkelMesh);
#endif// #if WITH_APEX_CLOTHING
}
}
void ImportStaticMeshLOD( UStaticMesh* BaseStaticMesh, const FString& Filename, int32 LODLevel )
{
UE_LOG(LogExportMeshUtils, Log, TEXT("Fbx LOD loading"));
// logger for all error/warnings
// this one prints all messages that are stored in FFbxImporter
// this function seems to get called outside of FBX factory
UnFbx::FFbxImporter* FFbxImporter = UnFbx::FFbxImporter::GetInstance();
UnFbx::FFbxLoggerSetter Logger(FFbxImporter);
// don't import materials
UnFbx::FBXImportOptions* ImportOptions = FFbxImporter->GetImportOptions();
ImportOptions->bImportMaterials = false;
ImportOptions->bImportTextures = false;
if ( !FFbxImporter->ImportFromFile( *Filename, FPaths::GetExtension( Filename ) ) )
{
// Log the error message and fail the import.
// @todo verify if the message works
FFbxImporter->FlushToTokenizedErrorMessage(EMessageSeverity::Error);
}
else
{
FFbxImporter->FlushToTokenizedErrorMessage(EMessageSeverity::Warning);
bool bUseLODs = true;
int32 MaxLODLevel = 0;
TArray< TArray<FbxNode*>* > LODNodeList;
TArray<FString> LODStrings;
// Create a list of LOD nodes
PopulateFBXStaticMeshLODList(FFbxImporter, FFbxImporter->Scene->GetRootNode(), LODNodeList, MaxLODLevel, bUseLODs);
// No LODs, so just grab all of the meshes in the file
if (MaxLODLevel == 0)
{
bUseLODs = false;
MaxLODLevel = BaseStaticMesh->GetNumLODs();
// Create a list of meshes
PopulateFBXStaticMeshLODList(FFbxImporter, FFbxImporter->Scene->GetRootNode(), LODNodeList, MaxLODLevel, bUseLODs);
// Nothing found, error out
if (LODNodeList.Num() == 0)
{
FFbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, FText(LOCTEXT("Prompt_NoMeshFound", "No meshes were found in file."))), FFbxErrors::Generic_Mesh_MeshNotFound);
FFbxImporter->ReleaseScene();
return;
}
}
// Display the LOD selection dialog
if (LODLevel > BaseStaticMesh->GetNumLODs())
{
// Make sure they don't manage to select a bad LOD index
FFbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Warning, FText::Format(LOCTEXT("Prompt_InvalidLODIndex", "Invalid mesh LOD index {0}, as no prior LOD index exists!"), FText::AsNumber(LODLevel))), FFbxErrors::Generic_Mesh_LOD_InvalidIndex);
}
else
{
// Import mesh
UStaticMesh* TempStaticMesh = NULL;
TempStaticMesh = (UStaticMesh*)FFbxImporter->ImportStaticMeshAsSingle(GetTransientPackage(), *(LODNodeList[bUseLODs? LODLevel: 0]), NAME_None, RF_NoFlags, NULL, BaseStaticMesh, LODLevel);
// Add imported mesh to existing model
if( TempStaticMesh )
{
// Update mesh component
BaseStaticMesh->MarkPackageDirty();
// Import worked
FNotificationInfo NotificationInfo(FText::GetEmpty());
NotificationInfo.Text = FText::Format(LOCTEXT("LODImportSuccessful", "Mesh for LOD {0} imported successfully!"), FText::AsNumber(LODLevel));
NotificationInfo.ExpireDuration = 5.0f;
FSlateNotificationManager::Get().AddNotification(NotificationInfo);
}
else
{
// Import failed
FNotificationInfo NotificationInfo(FText::GetEmpty());
NotificationInfo.Text = FText::Format(LOCTEXT("LODImportFail", "Failed to import mesh for LOD {0}!"), FText::AsNumber( LODLevel ));
NotificationInfo.ExpireDuration = 5.0f;
FSlateNotificationManager::Get().AddNotification(NotificationInfo);
}
}
// Cleanup
for (int32 i = 0; i < LODNodeList.Num(); ++i)
{
delete LODNodeList[i];
}
}
FFbxImporter->ReleaseScene();
}
bool UEditorEngine::ReimportFbxAnimation( USkeleton* Skeleton, UAnimSequence* AnimSequence, UFbxAnimSequenceImportData* ImportData, const TCHAR* InFilename)
{
check(Skeleton);
GWarn->BeginSlowTask( LOCTEXT("ImportingFbxAnimations", "Importing FBX animations"), true );
UnFbx::FFbxImporter* FbxImporter = UnFbx::FFbxImporter::GetInstance();
// logger for all error/warnings
// this one prints all messages that are stored in FFbxImporter
UnFbx::FFbxLoggerSetter Logger(FbxImporter);
const bool bPrevImportMorph = (AnimSequence->RawCurveData.FloatCurves.Num() > 0) ;
if ( ImportData )
{
// Prepare the import options
UFbxImportUI* ReimportUI = NewObject<UFbxImportUI>();
ReimportUI->MeshTypeToImport = FBXIT_Animation;
ReimportUI->bOverrideFullName = false;
ReimportUI->AnimSequenceImportData = ImportData;
ApplyImportUIToImportOptions(ReimportUI, *FbxImporter->ImportOptions);
}
else
{
FbxImporter->ImportOptions->ResetForReimportAnimation();
}
if ( !FbxImporter->ImportFromFile( InFilename, FPaths::GetExtension( InFilename ) ) )
{
// Log the error message and fail the import.
FbxImporter->FlushToTokenizedErrorMessage(EMessageSeverity::Error);
}
else
{
// Log the import message and import the mesh.
FbxImporter->FlushToTokenizedErrorMessage(EMessageSeverity::Warning);
const FString Filename( InFilename );
// Get Mesh nodes array that bind to the skeleton system, then morph animation is imported.
TArray<FbxNode*> FBXMeshNodeArray;
FbxNode* SkeletonRoot = FbxImporter->FindFBXMeshesByBone(Skeleton->GetReferenceSkeleton().GetBoneName(0), true, FBXMeshNodeArray);
if (!SkeletonRoot)
{
FbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, FText::Format(LOCTEXT("Error_CouldNotFindFbxTrack", "Mesh contains {0} bone as root but animation doesn't contain the root track.\nImport failed."), FText::FromName(Skeleton->GetReferenceSkeleton().GetBoneName(0)))), FFbxErrors::Animation_CouldNotFindTrack);
FbxImporter->ReleaseScene();
GWarn->EndSlowTask();
return false;
}
// for now import all the time?
bool bImportMorphTracks = true;
// Check for blend shape curves that are not skinned. Unskinned geometry can still contain morph curves
if( bImportMorphTracks )
{
TArray<FbxNode*> MeshNodes;
FbxImporter->FillFbxMeshArray( FbxImporter->Scene->GetRootNode(), MeshNodes, FbxImporter );
for( int32 NodeIndex = 0; NodeIndex < MeshNodes.Num(); ++NodeIndex )
{
// Its possible the nodes already exist so make sure they are only added once
FBXMeshNodeArray.AddUnique( MeshNodes[NodeIndex] );
}
}
TArray<FbxNode*> SortedLinks;
FbxImporter->RecursiveBuildSkeleton(SkeletonRoot, SortedLinks);
if(SortedLinks.Num() == 0)
{
FbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Warning, LOCTEXT("Error_CouldNotBuildValidSkeleton", "Could not create a valid skeleton from the import data that matches the given Skeletal Mesh. Check the bone names of both the Skeletal Mesh for this AnimSet and the animation data you are trying to import.")), FFbxErrors::Animation_CouldNotBuildSkeleton);
}
else
{
// find the correct animation based on import data
FbxAnimStack* CurAnimStack = nullptr;
//ignore the source animation name if there's only one animation in the file.
//this is to make it easier for people who use content creation programs that only export one animation and/or ones that don't allow naming animations
if (FbxImporter->Scene->GetSrcObjectCount(FbxCriteria::ObjectType(FbxAnimStack::ClassId)) > 1 && !ImportData->SourceAnimationName.IsEmpty())
{
CurAnimStack = FbxCast<FbxAnimStack>(FbxImporter->Scene->FindSrcObject(FbxCriteria::ObjectType(FbxAnimStack::ClassId), TCHAR_TO_UTF8(*ImportData->SourceAnimationName), 0));
}
else
{
CurAnimStack = FbxCast<FbxAnimStack>(FbxImporter->Scene->GetSrcObject(FbxCriteria::ObjectType(FbxAnimStack::ClassId), 0));
}
if (CurAnimStack)
{
// set current anim stack
int32 ResampleRate = DEFAULT_SAMPLERATE;
if (FbxImporter->ImportOptions->bResample)
{
ResampleRate = FbxImporter->GetMaxSampleRate(SortedLinks, FBXMeshNodeArray);
}
FbxTimeSpan AnimTimeSpan = FbxImporter->GetAnimationTimeSpan(SortedLinks[0], CurAnimStack);
// for now it's not importing morph - in the future, this should be optional or saved with asset
if (FbxImporter->ValidateAnimStack(SortedLinks, FBXMeshNodeArray, CurAnimStack, ResampleRate, bImportMorphTracks, AnimTimeSpan))
{
FbxImporter->ImportAnimation( Skeleton, AnimSequence, Filename, SortedLinks, FBXMeshNodeArray, CurAnimStack, ResampleRate, AnimTimeSpan);
}
}
else
{
// no track is found
FbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, LOCTEXT("Error_CouldNotFindTrack", "Could not find needed track.")), FFbxErrors::Animation_CouldNotFindTrack);
FbxImporter->ReleaseScene();
GWarn->EndSlowTask();
return false;
}
}
}
FbxImporter->ImportOptions->bImportMorph = bPrevImportMorph;
FbxImporter->ReleaseScene();
GWarn->EndSlowTask();
return true;
}
UAnimSequence * UEditorEngine::ImportFbxAnimation( USkeleton* Skeleton, UObject* Outer, UFbxAnimSequenceImportData* TemplateImportData, const TCHAR* InFilename, const TCHAR* AnimName, bool bImportMorphTracks )
{
check(Skeleton);
UAnimSequence * NewAnimation=NULL;
UnFbx::FFbxImporter* FFbxImporter = UnFbx::FFbxImporter::GetInstance();
const bool bPrevImportMorph = FFbxImporter->ImportOptions->bImportMorph;
FFbxImporter->ImportOptions->bImportMorph = bImportMorphTracks;
if ( !FFbxImporter->ImportFromFile( InFilename, FPaths::GetExtension( InFilename ) ) )
{
// Log the error message and fail the import.
FFbxImporter->FlushToTokenizedErrorMessage(EMessageSeverity::Error);
}
else
{
// Log the import message and import the mesh.
FFbxImporter->FlushToTokenizedErrorMessage(EMessageSeverity::Warning);
const FString Filename( InFilename );
// Get Mesh nodes array that bind to the skeleton system, then morph animation is imported.
TArray<FbxNode*> FBXMeshNodeArray;
FbxNode* SkeletonRoot = FFbxImporter->FindFBXMeshesByBone(Skeleton->GetReferenceSkeleton().GetBoneName(0), true, FBXMeshNodeArray);
if (!SkeletonRoot)
{
FFbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, FText::Format(LOCTEXT("Error_CouldNotFindFbxTrack", "Mesh contains {0} bone as root but animation doesn't contain the root track.\nImport failed."), FText::FromName(Skeleton->GetReferenceSkeleton().GetBoneName(0)))), FFbxErrors::Animation_CouldNotFindRootTrack);
FFbxImporter->ReleaseScene();
return NULL;
}
// Check for blend shape curves that are not skinned. Unskinned geometry can still contain morph curves
if( bImportMorphTracks )
{
TArray<FbxNode*> MeshNodes;
FFbxImporter->FillFbxMeshArray( FFbxImporter->Scene->GetRootNode(), MeshNodes, FFbxImporter );
for( int32 NodeIndex = 0; NodeIndex < MeshNodes.Num(); ++NodeIndex )
{
// Its possible the nodes already exist so make sure they are only added once
FBXMeshNodeArray.AddUnique( MeshNodes[NodeIndex] );
}
}
TArray<FbxNode*> SortedLinks;
FFbxImporter->RecursiveBuildSkeleton(SkeletonRoot, SortedLinks);
if(SortedLinks.Num() == 0)
{
FFbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Warning, LOCTEXT("Error_CouldNotBuildValidSkeleton", "Could not create a valid skeleton from the import data that matches the given Skeletal Mesh. Check the bone names of both the Skeletal Mesh for this AnimSet and the animation data you are trying to import.")),
FFbxErrors::Animation_CouldNotBuildSkeleton);
}
else
{
NewAnimation = FFbxImporter->ImportAnimations( Skeleton, Outer, SortedLinks, AnimName, TemplateImportData, FBXMeshNodeArray);
if( NewAnimation )
{
// since to know full path, reimport will need to do same
UFbxAnimSequenceImportData* ImportData = UFbxAnimSequenceImportData::GetImportDataForAnimSequence(NewAnimation, TemplateImportData);
ImportData->Update(UFactory::CurrentFilename);
}
}
}
FFbxImporter->ImportOptions->bImportMorph = bPrevImportMorph;
FFbxImporter->ReleaseScene();
return NewAnimation;
}
UObject* UFbxFactory::FactoryCreateBinary
(
UClass* Class,
UObject* InParent,
FName Name,
EObjectFlags Flags,
UObject* Context,
const TCHAR* Type,
const uint8*& Buffer,
const uint8* BufferEnd,
FFeedbackContext* Warn,
bool& bOutOperationCanceled
)
{
if( bOperationCanceled )
{
bOutOperationCanceled = true;
FEditorDelegates::OnAssetPostImport.Broadcast(this, NULL);
return NULL;
}
FEditorDelegates::OnAssetPreImport.Broadcast(this, Class, InParent, Name, Type);
UObject* NewObject = NULL;
if ( bDetectImportTypeOnImport )
{
if ( !DetectImportType(UFactory::CurrentFilename) )
{
// Failed to read the file info, fail the import
FEditorDelegates::OnAssetPostImport.Broadcast(this, NULL);
return NULL;
}
}
// logger for all error/warnings
// this one prints all messages that are stored in FFbxImporter
UnFbx::FFbxImporter* FbxImporter = UnFbx::FFbxImporter::GetInstance();
UnFbx::FFbxLoggerSetter Logger(FbxImporter);
EFBXImportType ForcedImportType = FBXIT_StaticMesh;
bool bIsObjFormat = false;
if( FString(Type).Equals(TEXT("obj"), ESearchCase::IgnoreCase ) )
{
bIsObjFormat = true;
}
bool bShowImportDialog = bShowOption && !GIsAutomationTesting;
bool bImportAll = false;
UnFbx::FBXImportOptions* ImportOptions = GetImportOptions(FbxImporter, ImportUI, bShowImportDialog, InParent->GetPathName(), bOperationCanceled, bImportAll, bIsObjFormat, bIsObjFormat, ForcedImportType );
bOutOperationCanceled = bOperationCanceled;
if( bImportAll )
{
// If the user chose to import all, we don't show the dialog again and use the same settings for each object until importing another set of files
bShowOption = false;
}
// For multiple files, use the same settings
bDetectImportTypeOnImport = false;
if (ImportOptions)
{
Warn->BeginSlowTask( NSLOCTEXT("FbxFactory", "BeginImportingFbxMeshTask", "Importing FBX mesh"), true );
if ( !FbxImporter->ImportFromFile( *UFactory::CurrentFilename, Type ) )
{
// Log the error message and fail the import.
Warn->Log(ELogVerbosity::Error, FbxImporter->GetErrorMessage() );
}
else
{
// Log the import message and import the mesh.
const TCHAR* errorMessage = FbxImporter->GetErrorMessage();
if (errorMessage[0] != '\0')
{
Warn->Log( errorMessage );
}
FbxNode* RootNodeToImport = NULL;
RootNodeToImport = FbxImporter->Scene->GetRootNode();
// For animation and static mesh we assume there is at lease one interesting node by default
int32 InterestingNodeCount = 1;
TArray< TArray<FbxNode*>* > SkelMeshArray;
bool bImportStaticMeshLODs = ImportUI->StaticMeshImportData->bImportMeshLODs;
bool bCombineMeshes = ImportUI->bCombineMeshes;
if ( ImportUI->MeshTypeToImport == FBXIT_SkeletalMesh )
{
FbxImporter->FillFbxSkelMeshArrayInScene(RootNodeToImport, SkelMeshArray, false);
InterestingNodeCount = SkelMeshArray.Num();
}
else if( ImportUI->MeshTypeToImport == FBXIT_StaticMesh )
{
FbxImporter->ApplyTransformSettingsToFbxNode(RootNodeToImport, ImportUI->StaticMeshImportData);
if( bCombineMeshes && !bImportStaticMeshLODs )
{
// If Combine meshes and dont import mesh LODs, the interesting node count should be 1 so all the meshes are grouped together into one static mesh
InterestingNodeCount = 1;
}
else
{
// count meshes in lod groups if we dont care about importing LODs
bool bCountLODGroupMeshes = !bImportStaticMeshLODs;
int32 NumLODGroups = 0;
InterestingNodeCount = FbxImporter->GetFbxMeshCount(RootNodeToImport,bCountLODGroupMeshes,NumLODGroups);
// if there were LODs in the file, do not combine meshes even if requested
if( bImportStaticMeshLODs && bCombineMeshes )
{
bCombineMeshes = NumLODGroups == 0;
}
}
}
if (InterestingNodeCount > 1)
{
// the option only works when there are only one asset
ImportOptions->bUsedAsFullName = false;
}
const FString Filename( UFactory::CurrentFilename );
if (RootNodeToImport && InterestingNodeCount > 0)
{
int32 NodeIndex = 0;
int32 ImportedMeshCount = 0;
UStaticMesh* NewStaticMesh = NULL;
if ( ImportUI->MeshTypeToImport == FBXIT_StaticMesh ) // static mesh
{
if (bCombineMeshes)
{
TArray<FbxNode*> FbxMeshArray;
FbxImporter->FillFbxMeshArray(RootNodeToImport, FbxMeshArray, FbxImporter);
if (FbxMeshArray.Num() > 0)
{
NewStaticMesh = FbxImporter->ImportStaticMeshAsSingle(InParent, FbxMeshArray, Name, Flags, ImportUI->StaticMeshImportData, NULL, 0);
}
ImportedMeshCount = NewStaticMesh ? 1 : 0;
}
else
{
TArray<UObject*> AllNewAssets;
UObject* Object = RecursiveImportNode(FbxImporter,RootNodeToImport,InParent,Name,Flags,NodeIndex,InterestingNodeCount, AllNewAssets);
NewStaticMesh = Cast<UStaticMesh>( Object );
// Make sure to notify the asset registry of all assets created other than the one returned, which will notify the asset registry automatically.
for ( auto AssetIt = AllNewAssets.CreateConstIterator(); AssetIt; ++AssetIt )
{
UObject* Asset = *AssetIt;
if ( Asset != NewStaticMesh )
{
FAssetRegistryModule::AssetCreated(Asset);
Asset->MarkPackageDirty();
}
}
ImportedMeshCount = AllNewAssets.Num();
}
// Importing static mesh sockets only works if one mesh is being imported
if( ImportedMeshCount == 1 && NewStaticMesh )
{
FbxImporter->ImportStaticMeshSockets( NewStaticMesh );
}
NewObject = NewStaticMesh;
}
else if ( ImportUI->MeshTypeToImport == FBXIT_SkeletalMesh )// skeletal mesh
{
int32 TotalNumNodes = 0;
for (int32 i = 0; i < SkelMeshArray.Num(); i++)
{
TArray<FbxNode*> NodeArray = *SkelMeshArray[i];
TotalNumNodes += NodeArray.Num();
// check if there is LODGroup for this skeletal mesh
int32 MaxLODLevel = 1;
for (int32 j = 0; j < NodeArray.Num(); j++)
{
FbxNode* Node = NodeArray[j];
if (Node->GetNodeAttribute() && Node->GetNodeAttribute()->GetAttributeType() == FbxNodeAttribute::eLODGroup)
{
// get max LODgroup level
if (MaxLODLevel < Node->GetChildCount())
{
MaxLODLevel = Node->GetChildCount();
}
}
}
int32 LODIndex;
bool bImportSkeletalMeshLODs = ImportUI->SkeletalMeshImportData->bImportMeshLODs;
for (LODIndex = 0; LODIndex < MaxLODLevel; LODIndex++)
{
if ( !bImportSkeletalMeshLODs && LODIndex > 0) // not import LOD if UI option is OFF
{
break;
}
TArray<FbxNode*> SkelMeshNodeArray;
for (int32 j = 0; j < NodeArray.Num(); j++)
{
FbxNode* Node = NodeArray[j];
if (Node->GetNodeAttribute() && Node->GetNodeAttribute()->GetAttributeType() == FbxNodeAttribute::eLODGroup)
{
if (Node->GetChildCount() > LODIndex)
{
SkelMeshNodeArray.Add(Node->GetChild(LODIndex));
}
else // in less some LODGroups have less level, use the last level
{
SkelMeshNodeArray.Add(Node->GetChild(Node->GetChildCount() - 1));
}
}
else
{
SkelMeshNodeArray.Add(Node);
}
}
if (LODIndex == 0 && SkelMeshNodeArray.Num() != 0)
{
FName OutputName = FbxImporter->MakeNameForMesh(Name.ToString(), SkelMeshNodeArray[0]);
USkeletalMesh* NewMesh = FbxImporter->ImportSkeletalMesh( InParent, SkelMeshNodeArray, OutputName, Flags, ImportUI->SkeletalMeshImportData, &bOperationCanceled );
NewObject = NewMesh;
if(bOperationCanceled)
{
// User cancelled, clean up and return
FbxImporter->ReleaseScene();
Warn->EndSlowTask();
bOperationCanceled = true;
return nullptr;
}
if ( NewMesh && ImportUI->bImportAnimations )
{
// We need to remove all scaling from the root node before we set up animation data.
// Othewise some of the global transform calculations will be incorrect.
FbxImporter->RemoveTransformSettingsFromFbxNode(RootNodeToImport, ImportUI->SkeletalMeshImportData);
FbxImporter->SetupAnimationDataFromMesh(NewMesh, InParent, SkelMeshNodeArray, ImportUI->AnimSequenceImportData, OutputName.ToString());
// Reapply the transforms for the rest of the import
FbxImporter->ApplyTransformSettingsToFbxNode(RootNodeToImport, ImportUI->SkeletalMeshImportData);
}
}
else if (NewObject) // the base skeletal mesh is imported successfully
{
USkeletalMesh* BaseSkeletalMesh = Cast<USkeletalMesh>(NewObject);
FName LODObjectName = NAME_None;
USkeletalMesh *LODObject = FbxImporter->ImportSkeletalMesh( GetTransientPackage(), SkelMeshNodeArray, LODObjectName, RF_NoFlags, ImportUI->SkeletalMeshImportData, &bOperationCanceled );
bool bImportSucceeded = !bOperationCanceled && FbxImporter->ImportSkeletalMeshLOD(LODObject, BaseSkeletalMesh, LODIndex, false);
if (bImportSucceeded)
{
BaseSkeletalMesh->LODInfo[LODIndex].ScreenSize = 1.0f / (MaxLODLevel * LODIndex);
}
else
{
FbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, LOCTEXT("FailedToImport_SkeletalMeshLOD", "Failed to import Skeletal mesh LOD.")), FFbxErrors::SkeletalMesh_LOD_FailedToImport);
}
}
// import morph target
if ( NewObject && ImportUI->SkeletalMeshImportData->bImportMorphTargets)
{
// Disable material importing when importing morph targets
uint32 bImportMaterials = ImportOptions->bImportMaterials;
ImportOptions->bImportMaterials = 0;
FbxImporter->ImportFbxMorphTarget(SkelMeshNodeArray, Cast<USkeletalMesh>(NewObject), InParent, LODIndex);
ImportOptions->bImportMaterials = !!bImportMaterials;
}
}
if (NewObject)
{
NodeIndex++;
FFormatNamedArguments Args;
Args.Add( TEXT("NodeIndex"), NodeIndex );
Args.Add( TEXT("ArrayLength"), SkelMeshArray.Num() );
GWarn->StatusUpdate( NodeIndex, SkelMeshArray.Num(), FText::Format( NSLOCTEXT("UnrealEd", "Importingf", "Importing ({NodeIndex} of {ArrayLength})"), Args ) );
}
}
for (int32 i = 0; i < SkelMeshArray.Num(); i++)
{
delete SkelMeshArray[i];
}
// if total nodes we found is 0, we didn't find anything.
if (TotalNumNodes == 0)
{
FbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, LOCTEXT("FailedToImport_NoMeshFoundOnRoot", "Could not find any valid mesh on the root hierarchy. If you have mesh in the sub hierarchy, please enable option of [Import Meshes In Bone Hierarchy] when import.")),
FFbxErrors::SkeletalMesh_NoMeshFoundOnRoot);
}
}
else if ( ImportUI->MeshTypeToImport == FBXIT_Animation )// animation
{
if (ImportOptions->SkeletonForAnimation)
{
// will return the last animation sequence that were added
NewObject = UEditorEngine::ImportFbxAnimation( ImportOptions->SkeletonForAnimation, InParent, ImportUI->AnimSequenceImportData, *Filename, *Name.ToString(), true );
}
}
}
else
{
if (RootNodeToImport == NULL)
{
FbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, LOCTEXT("FailedToImport_InvalidRoot", "Could not find root node.")), FFbxErrors::SkeletalMesh_InvalidRoot);
}
else if (ImportUI->MeshTypeToImport == FBXIT_SkeletalMesh)
{
FbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, LOCTEXT("FailedToImport_InvalidBone", "Failed to find any bone hierarchy. Try disabling the \"Import As Skeletal\" option to import as a rigid mesh. ")), FFbxErrors::SkeletalMesh_InvalidBone);
}
else
{
FbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, LOCTEXT("FailedToImport_InvalidNode", "Could not find any node.")), FFbxErrors::SkeletalMesh_InvalidNode);
}
}
}
if (NewObject == NULL)
{
FbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, LOCTEXT("FailedToImport_NoObject", "Import failed.")), FFbxErrors::Generic_ImportingNewObjectFailed);
}
FbxImporter->ReleaseScene();
Warn->EndSlowTask();
}
FEditorDelegates::OnAssetPostImport.Broadcast(this, NewObject);
return NewObject;
}
void FDestructibleMeshEditorViewportClient::ImportFBXChunks()
{
// Get the FBX that we want to import
TArray<FString> OpenFilenames;
IDesktopPlatform* DesktopPlatform = FDesktopPlatformModule::Get();
bool bOpened = false;
if (DesktopPlatform != NULL)
{
bOpened = DesktopPlatform->OpenFileDialog(
NULL,
NSLOCTEXT("UnrealEd", "ImportMatineeSequence", "Import UnrealMatinee Sequence").ToString(),
*(FEditorDirectories::Get().GetLastDirectory(ELastDirectory::GENERIC_IMPORT)),
TEXT(""),
TEXT("FBX document|*.fbx"),
EFileDialogFlags::None,
OpenFilenames);
}
if (bOpened)
{
// Get the filename from dialog
FString ImportFilename = OpenFilenames[0];
FString FileName = OpenFilenames[0];
FEditorDirectories::Get().SetLastDirectory(ELastDirectory::GENERIC_IMPORT, FPaths::GetPath(FileName)); // Save path as default for next time.
const FString FileExtension = FPaths::GetExtension(FileName);
const bool bIsFBX = FCString::Stricmp(*FileExtension, TEXT("FBX")) == 0;
if (bIsFBX)
{
FlushRenderingCommands();
UnFbx::FFbxImporter* FFbxImporter = UnFbx::FFbxImporter::GetInstance();
if (FFbxImporter->ImportFromFile( *ImportFilename, FPaths::GetExtension( ImportFilename ) ) )
{
TArray<FbxNode*> FbxMeshArray;
FFbxImporter->FillFbxMeshArray(FFbxImporter->Scene->GetRootNode(), FbxMeshArray, FFbxImporter);
UFbxStaticMeshImportData* ImportData = NewObject<UFbxStaticMeshImportData>(GetTransientPackage(), NAME_None, RF_NoFlags, NULL);
TArray<UStaticMesh*> ChunkMeshes;
for (int32 i=0; i < FbxMeshArray.Num(); ++i)
{
UStaticMesh* TempStaticMesh = NULL;
TempStaticMesh = (UStaticMesh*)FFbxImporter->ImportStaticMesh(GetTransientPackage(), FbxMeshArray[i], NAME_None, RF_NoFlags, ImportData, 0);
ChunkMeshes.Add(TempStaticMesh);
}
UDestructibleMesh* DestructibleMesh = DestructibleMeshEditorPtr.Pin()->GetDestructibleMesh();
if (DestructibleMesh)
{
DestructibleMesh->SetupChunksFromStaticMeshes(ChunkMeshes);
}
}
FFbxImporter->ReleaseScene();
// Update the viewport
DestructibleMeshEditorPtr.Pin()->RefreshTool();
DestructibleMeshEditorPtr.Pin()->SetCurrentPreviewDepth(0xFFFFFFFF); // This will get clamped to the max depth
}
else
{
// Invalid filename
}
}
#if WITH_APEX
#endif // WITH_APEX
}
EReimportResult::Type UReimportFbxSceneFactory::Reimport(UObject* Obj)
{
ReimportData = GetFbxSceneImportData(Obj);
if (!ReimportData)
{
return EReimportResult::Failed;
}
//We will call other factory store the filename value since UFactory::CurrentFilename is static
FbxImportFileName = ReimportData->SourceFbxFile;
UnFbx::FFbxImporter* FbxImporter = UnFbx::FFbxImporter::GetInstance();
UnFbx::FFbxLoggerSetter Logger(FbxImporter);
GWarn->BeginSlowTask(NSLOCTEXT("FbxSceneReImportFactory", "BeginReImportingFbxSceneTask", "ReImporting FBX scene"), true);
GlobalImportSettings = FbxImporter->GetImportOptions();
//Fill the original options
for (auto kvp : ReimportData->NameOptionsMap)
{
if (kvp.Key.Compare(DefaultOptionName) == 0)
{
SFbxSceneOptionWindow::CopyFbxOptionsToFbxOptions(kvp.Value, GlobalImportSettings);
NameOptionsMap.Add(kvp.Key, GlobalImportSettings);
}
else
{
NameOptionsMap.Add(kvp.Key, kvp.Value);
}
}
//Always convert the scene
GlobalImportSettings->bConvertScene = true;
GlobalImportSettings->bImportScene = ReimportData->bImportScene;
//Read the fbx and store the hierarchy's information so we can reuse it after importing all the model in the fbx file
if (!FbxImporter->ImportFromFile(*FbxImportFileName, FPaths::GetExtension(FbxImportFileName)))
{
// Log the error message and fail the import.
GWarn->Log(ELogVerbosity::Error, FbxImporter->GetErrorMessage());
FbxImporter->ReleaseScene();
FbxImporter = nullptr;
GWarn->EndSlowTask();
return EReimportResult::Failed;
}
FString PackageName = "";
Obj->GetOutermost()->GetName(PackageName);
Path = FPaths::GetPath(PackageName);
UnFbx::FbxSceneInfo SceneInfo;
//Read the scene and found all instance with their scene information.
FbxImporter->GetSceneInfo(FbxImportFileName, SceneInfo);
//Convert old structure to the new scene export structure
TSharedPtr<FFbxSceneInfo> SceneInfoPtr = ConvertSceneInfo(&SceneInfo);
//Get import material info
ExtractMaterialInfo(FbxImporter, SceneInfoPtr);
if (!ReimportData->bCreateFolderHierarchy)
{
for (TSharedPtr<FFbxMeshInfo> MeshInfo : SceneInfoPtr->MeshInfo)
{
FString AssetName = Path + TEXT("/") + MeshInfo->Name;
MeshInfo->SetOriginalImportPath(AssetName);
FString OriginalFullImportName = PackageTools::SanitizePackageName(AssetName);
OriginalFullImportName = OriginalFullImportName + TEXT(".") + PackageTools::SanitizePackageName(MeshInfo->Name);
MeshInfo->SetOriginalFullImportName(OriginalFullImportName);
}
}
else
{
TSet<uint64> AssetPathDone;
FString AssetPath = Path;
for (TSharedPtr<FFbxNodeInfo> NodeInfo : SceneInfoPtr->HierarchyInfo)
{
//Iterate the hierarchy and build the original path
RecursivelyCreateOriginalPath(FbxImporter, NodeInfo, AssetPath, AssetPathDone);
}
}
FillSceneHierarchyPath(SceneInfoPtr);
FbxSceneReimportStatusMap MeshStatusMap;
FbxSceneReimportStatusMap NodeStatusMap;
bool bCanReimportHierarchy = ReimportData->HierarchyType == (int32)EFBXSceneOptionsCreateHierarchyType::FBXSOCHT_CreateBlueprint && !ReimportData->BluePrintFullName.IsEmpty();
if (!GetFbxSceneReImportOptions(FbxImporter
, SceneInfoPtr
, ReimportData->SceneInfoSourceData
, GlobalImportSettings
, SceneImportOptions
, SceneImportOptionsStaticMesh
, NameOptionsMap
, MeshStatusMap
, NodeStatusMap
, bCanReimportHierarchy
, Path))
{
//User cancel the scene import
FbxImporter->ReleaseScene();
FbxImporter = nullptr;
GlobalImportSettings = nullptr;
GWarn->EndSlowTask();
return EReimportResult::Cancelled;
}
GlobalImportSettingsReference = new UnFbx::FBXImportOptions();
SFbxSceneOptionWindow::CopyFbxOptionsToFbxOptions(GlobalImportSettings, GlobalImportSettingsReference);
//Overwrite the reimport asset data with the new data
ReimportData->SceneInfoSourceData = SceneInfoPtr;
ReimportData->SourceFbxFile = FPaths::ConvertRelativePathToFull(FbxImportFileName);
ReimportData->bImportScene = GlobalImportSettingsReference->bImportScene;
//Copy the options map
ReimportData->NameOptionsMap.Reset();
for (auto kvp : NameOptionsMap)
{
ReimportData->NameOptionsMap.Add(kvp.Key, kvp.Value);
}
FAssetRegistryModule& AssetRegistryModule = FModuleManager::LoadModuleChecked<FAssetRegistryModule>("AssetRegistry");
TArray<FAssetData> AssetDataToDelete;
for (TSharedPtr<FFbxMeshInfo> MeshInfo : SceneInfoPtr->MeshInfo)
{
//Delete all the delete asset
if (!MeshStatusMap.Contains(MeshInfo->OriginalImportPath))
{
continue;
}
EFbxSceneReimportStatusFlags MeshStatus = *(MeshStatusMap.Find(MeshInfo->OriginalImportPath));
if ((MeshStatus & EFbxSceneReimportStatusFlags::Removed) == EFbxSceneReimportStatusFlags::None || (MeshStatus & EFbxSceneReimportStatusFlags::ReimportAsset) == EFbxSceneReimportStatusFlags::None)
{
continue;
}
//Make sure we load all package that will be deleted
UPackage* PkgExist = LoadPackage(nullptr, *(MeshInfo->GetImportPath()), LOAD_Verify | LOAD_NoWarn);
if (PkgExist == nullptr)
{
continue;
}
PkgExist->FullyLoad();
//Find the asset
AssetDataToDelete.Add(AssetRegistryModule.Get().GetAssetByObjectPath(FName(*(MeshInfo->GetFullImportName()))));
}
AllNewAssets.Empty();
AssetToSyncContentBrowser.Empty();
EReimportResult::Type ReimportResult = EReimportResult::Succeeded;
//Reimport and add asset
for (TSharedPtr<FFbxMeshInfo> MeshInfo : SceneInfoPtr->MeshInfo)
{
if (!MeshStatusMap.Contains(MeshInfo->OriginalImportPath))
{
continue;
}
EFbxSceneReimportStatusFlags MeshStatus = *(MeshStatusMap.Find(MeshInfo->OriginalImportPath));
//Set the import status for the next reimport
MeshInfo->bImportAttribute = (MeshStatus & EFbxSceneReimportStatusFlags::ReimportAsset) != EFbxSceneReimportStatusFlags::None;
if ((MeshStatus & EFbxSceneReimportStatusFlags::Removed) != EFbxSceneReimportStatusFlags::None ||
(MeshStatus & EFbxSceneReimportStatusFlags::ReimportAsset) == EFbxSceneReimportStatusFlags::None)
{
continue;
}
if (((MeshStatus & EFbxSceneReimportStatusFlags::Same) != EFbxSceneReimportStatusFlags::None || (MeshStatus & EFbxSceneReimportStatusFlags::Added) != EFbxSceneReimportStatusFlags::None) &&
(MeshStatus & EFbxSceneReimportStatusFlags::FoundContentBrowserAsset) != EFbxSceneReimportStatusFlags::None)
{
//Reimport over the old asset
if (!MeshInfo->bIsSkelMesh)
{
ReimportResult = ReimportStaticMesh(FbxImporter, MeshInfo);
}
else
{
//TODO reimport skeletal mesh
}
}
else if ((MeshStatus & EFbxSceneReimportStatusFlags::Added) != EFbxSceneReimportStatusFlags::None || (MeshStatus & EFbxSceneReimportStatusFlags::Same) != EFbxSceneReimportStatusFlags::None)
{
//Create a package for this node
//Get Parent hierarchy name to create new package path
ReimportResult = ImportStaticMesh(FbxImporter, MeshInfo, SceneInfoPtr);
}
}
//Put back the default option in the static mesh import data, so next import will have those last import option
SFbxSceneOptionWindow::CopyFbxOptionsToFbxOptions(GlobalImportSettingsReference, GlobalImportSettings);
SFbxSceneOptionWindow::CopyFbxOptionsToStaticMeshOptions(GlobalImportSettingsReference, SceneImportOptionsStaticMesh);
SceneImportOptionsStaticMesh->FillStaticMeshInmportData(StaticMeshImportData, SceneImportOptions);
StaticMeshImportData->SaveConfig();
//Update the blueprint
UBlueprint *ReimportBlueprint = nullptr;
if (bCanReimportHierarchy && GlobalImportSettingsReference->bImportScene)
{
ReimportBlueprint = UpdateOriginalBluePrint(ReimportData->BluePrintFullName, &NodeStatusMap, SceneInfoPtr, ReimportData->SceneInfoSourceData, AssetDataToDelete);
}
//Remove the deleted meshinfo node from the reimport data
TArray<TSharedPtr<FFbxMeshInfo>> ToRemoveHierarchyNode;
for (TSharedPtr<FFbxMeshInfo> MeshInfo : ReimportData->SceneInfoSourceData->MeshInfo)
{
EFbxSceneReimportStatusFlags MeshStatus = *(MeshStatusMap.Find(MeshInfo->OriginalImportPath));
if ((MeshStatus & EFbxSceneReimportStatusFlags::Removed) != EFbxSceneReimportStatusFlags::None)
{
ToRemoveHierarchyNode.Add(MeshInfo);
}
}
for (TSharedPtr<FFbxMeshInfo> MeshInfo : ToRemoveHierarchyNode)
{
ReimportData->SceneInfoSourceData->MeshInfo.Remove(MeshInfo);
}
ReimportData->Modify();
ReimportData->PostEditChange();
//Make sure the content browser is in sync before we delete
FContentBrowserModule& ContentBrowserModule = FModuleManager::Get().LoadModuleChecked<FContentBrowserModule>("ContentBrowser");
ContentBrowserModule.Get().SyncBrowserToAssets(AssetToSyncContentBrowser);
if (AssetDataToDelete.Num() > 0)
{
bool AbortDelete = false;
if (ReimportBlueprint != nullptr)
{
//Save the blueprint to avoid reference from the old blueprint
FAssetData ReimportBlueprintAsset(ReimportBlueprint);
TArray<UPackage*> Packages;
Packages.Add(ReimportBlueprintAsset.GetPackage());
FEditorFileUtils::PromptForCheckoutAndSave(Packages, false, false);
//Make sure the Asset registry is up to date after the save
TArray<FString> Paths;
Paths.Add(ReimportBlueprintAsset.PackagePath.ToString());
AssetRegistryModule.Get().ScanPathsSynchronous(Paths, true);
}
if (!AbortDelete)
{
//Delete the asset and use the normal dialog to make sure the user understand he will remove some content
//The user can decide to cancel the delete or not. This will not interrupt the reimport process
//The delete is done at the end because we want to remove the blueprint reference before deleting object
ObjectTools::DeleteAssets(AssetDataToDelete, true);
}
}
//Make sure the content browser is in sync
ContentBrowserModule.Get().SyncBrowserToAssets(AssetToSyncContentBrowser);
AllNewAssets.Empty();
GlobalImportSettings = nullptr;
GlobalImportSettingsReference = nullptr;
FbxImporter->ReleaseScene();
FbxImporter = nullptr;
GWarn->EndSlowTask();
return EReimportResult::Succeeded;
}
