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How to import FBX Animation Sequence from code

I found the function UEditorEngine::ImportFbxAnimation

but I don't know how to use this function.

I'd like to create Animation Sequence without Import Option Dialog.

Here is my code:

 TArray<FAssetData> SK_Skeleton;
 AssetRegistry.GetAssetsByPackageName(FName("/Game/SK_Skeleton"), SK_Skeleton);
 USkeleton* Skeleton = Cast<USkeleton>(SK_Skeleton[0].GetAsset());
 FName AssetName = TEXT("Anim");
 FString PackagePath = TEXT("/Game/Anim");
 UPackage* Package = CreatePackage(NULL, *PackagePath);
 FString FileName = TEXT("F:/SK_Anim.fbx");
 UFbxAnimSequenceImportData* Data = NewObject<UFbxAnimSequenceImportData>();
 UAnimSequence* NewAnim = UEditorEngine::ImportFbxAnimation(Skeleton, Package,  Data, *Filename, *AssetName.ToString(), true);

What about the ImportData?

The imported asset is not correct.

alt text

(Import button)

alt text

please help, thank you.

Product Version: UE 4.13
notvalid.jpg (13.2 kB)
valid.jpg (18.0 kB)
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asked Feb 20 '17 at 01:17 PM in C++ Programming

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avatar image longshensanjie 5 days ago

hi,tsqp I also have some questions about how to create skeleton mesh runtime from fbx file. I hope your help.thanks

avatar image tsqp 2 days ago

hi, longshensanjie
try this code

 UFbxFactory* factory = NewObject<UFbxFactory>(UFbxFactory::StaticClass(), FName("Factory"), RF_NoFlags);
 UPackage* package = CreatePackage(NULL, TEXT("/Game"));
 FString filename = "fbx file path";
 bool canceled = false;
 factory->ImportObject(factory->ResolveSupportedClass(), package, FName("SK_Mesh"), RF_Public | RF_Standalone, filename, nullptr, canceled);

do not forget including "Factories/FbxFactory.h"
and you can access fbx options like this

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I think it needs to mark package dirty after your code.

 // Update notice

And then you had better create UnFbx::FBXImportOptions object and initialize options before calling UEditorEngine::ImportFbxAnimation.

Please refer to UFbxFactory::FactoryCreateBinary in FbxFactory.cpp.

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answered Feb 21 '17 at 02:53 AM

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avatar image tsqp Feb 21 '17 at 08:05 AM

thank you very much.

I added the above code after my code and create FBXImportOptions.

(refered to ApplyImportUIToImportOptions in FbxMainImport.cpp)

I got the correct info.

always thankful for the help.

avatar image Vinayaka_P Dec 13 '18 at 06:05 AM

Hi tsqp

Code snippet in your question is not quite clear that how you import FBX animation from disk in c++? I couldn't find a way to do that. I too don't know how to use UEditorEngine::ImportFbxAnimation(...) function. Can you please help me with that?

avatar image tsqp Dec 13 '18 at 07:10 AM

hi Vinayaka_P

OK, You should create UnFbx::FBXImportOptions object and initialize before calling UEditorEngine::ImportFbxAnimation(...) function.

I attatched sample code. Please check it out. I wish for your help. :-)

link text

avatar image Vinayaka_P Dec 13 '18 at 07:35 AM


Thanks for detailed code.

May i know how you managed to get UnFbx::FFbxImporter working?

I tried, 1. including FFbxImporter.h file -> got unresolved external symbol error as in this post 2. modified project.build.cs file to include FBX -> didn't help.

From this post i came to know that i should modify engine code. Should I?

Engine version i'm using is 4.19

Here's another post i looked into

avatar image tsqp Dec 13 '18 at 08:17 AM

hi Vinayaka_P

Try including FbxImporter.h.
not FFbxImporter.h. and then

 UAnimSequence* NewAnim = FTosFBX::ImportAnimationSequence <= function in attached file
 SkeletalMeshActor->GetSkeletalMeshComponent()->AnimationData.AnimToPlay = NewAnim;

Please do your best.

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