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;
}
EReimportResult::Type UReimportFbxSceneFactory::ReimportStaticMesh(void* VoidFbxImporter, TSharedPtr<FFbxMeshInfo> MeshInfo)
{
UnFbx::FFbxImporter* FbxImporter = (UnFbx::FFbxImporter*)VoidFbxImporter;
//Find the UObject associate with this MeshInfo
UPackage* PkgExist = LoadPackage(nullptr, *(MeshInfo->GetImportPath()), LOAD_Verify | LOAD_NoWarn);
if (PkgExist != nullptr)
{
PkgExist->FullyLoad();
}
FString AssetName = MeshInfo->GetFullImportName();
UStaticMesh* Mesh = FindObjectSafe<UStaticMesh>(ANY_PACKAGE, *AssetName);
if (Mesh == nullptr)
{
//We reimport only static mesh here
FbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, FText::Format(FText::FromString("Reimport Mesh {0} fail, the original staicmesh in the content browser cannot be load."), FText::FromString(MeshInfo->GetImportPath()))), FName(TEXT("Reimport Fbx Scene")));
return EReimportResult::Failed;
}
//Copy default options to StaticMeshImportData
SFbxSceneOptionWindow::CopyFbxOptionsToStaticMeshOptions(GlobalImportSettingsReference, SceneImportOptionsStaticMesh);
SceneImportOptionsStaticMesh->FillStaticMeshInmportData(StaticMeshImportData, SceneImportOptions);
UnFbx::FBXImportOptions* OverrideImportSettings = GetOptionsFromName(MeshInfo->OptionName);
if (OverrideImportSettings != nullptr)
{
SFbxSceneOptionWindow::CopyFbxOptionsToFbxOptions(OverrideImportSettings, GlobalImportSettings);
SFbxSceneOptionWindow::CopyFbxOptionsToStaticMeshOptions(OverrideImportSettings, SceneImportOptionsStaticMesh);
}
else
{
SFbxSceneOptionWindow::CopyFbxOptionsToFbxOptions(GlobalImportSettingsReference, GlobalImportSettings);
SFbxSceneOptionWindow::CopyFbxOptionsToStaticMeshOptions(GlobalImportSettingsReference, SceneImportOptionsStaticMesh);
}
SceneImportOptionsStaticMesh->FillStaticMeshInmportData(StaticMeshImportData, SceneImportOptions);
FbxImporter->ApplyTransformSettingsToFbxNode(FbxImporter->Scene->GetRootNode(), StaticMeshImportData);
const TArray<UAssetUserData*>* UserData = Mesh->GetAssetUserDataArray();
TArray<UAssetUserData*> UserDataCopy;
if (UserData)
{
for (int32 Idx = 0; Idx < UserData->Num(); Idx++)
{
UserDataCopy.Add((UAssetUserData*)StaticDuplicateObject((*UserData)[Idx], GetTransientPackage()));
}
}
// preserve settings in navcollision subobject
UNavCollision* NavCollision = Mesh->NavCollision ?
(UNavCollision*)StaticDuplicateObject(Mesh->NavCollision, GetTransientPackage()) :
nullptr;
// preserve extended bound settings
const FVector PositiveBoundsExtension = Mesh->PositiveBoundsExtension;
const FVector NegativeBoundsExtension = Mesh->NegativeBoundsExtension;
Mesh = FbxImporter->ReimportSceneStaticMesh(MeshInfo->UniqueId, Mesh, StaticMeshImportData);
if (Mesh != nullptr)
{
//Put back the new mesh data since the reimport is putting back the original import data
SceneImportOptionsStaticMesh->FillStaticMeshInmportData(StaticMeshImportData, SceneImportOptions);
Mesh->AssetImportData = StaticMeshImportData;
// Copy user data to newly created mesh
for (int32 Idx = 0; Idx < UserDataCopy.Num(); Idx++)
{
UserDataCopy[Idx]->Rename(nullptr, Mesh, REN_DontCreateRedirectors | REN_DoNotDirty);
Mesh->AddAssetUserData(UserDataCopy[Idx]);
}
if (NavCollision)
{
Mesh->NavCollision = NavCollision;
NavCollision->Rename(nullptr, Mesh, REN_DontCreateRedirectors | REN_DoNotDirty);
}
// Restore bounds extension settings
Mesh->PositiveBoundsExtension = PositiveBoundsExtension;
Mesh->NegativeBoundsExtension = NegativeBoundsExtension;
Mesh->AssetImportData->Update(FbxImportFileName);
// Try to find the outer package so we can dirty it up
if (Mesh->GetOutermost())
{
Mesh->GetOutermost()->MarkPackageDirty();
}
else
{
Mesh->MarkPackageDirty();
}
AllNewAssets.Add(MeshInfo, Mesh);
AssetToSyncContentBrowser.Add(Mesh);
}
else
{
return EReimportResult::Failed;
}
return EReimportResult::Succeeded;
}