void FBXJSONSerializer::serialize(const std::string& input_filename, const std::string& output_filename) {
  KFbxSdkManager* manager = KFbxSdkManager::Create();

  KFbxIOSettings* ios = KFbxIOSettings::Create(manager, IOSROOT);
  manager->SetIOSettings(ios);

  KFbxImporter* importer = KFbxImporter::Create(manager, "");

  if(!importer->Initialize(input_filename.c_str(), -1, manager->GetIOSettings())) {
    std::cerr << "failed to import %s" << input_filename << std::endl;
    std::cerr << importer->GetLastErrorString() << std::endl;
    return;
  }

  KFbxScene* scene = KFbxScene::Create(manager, "scene");
  importer->Import(scene);
  importer->Destroy();

  KFbxNode* root_node = scene->GetRootNode();
  KFbxGeometryConverter converter(root_node->GetFbxSdkManager());
    Object json_root;
    
    Array meshes;  
    this->recurse_over_model(root_node, meshes);

    json_root["meshes"] = meshes;

    std::ofstream stream(output_filename.c_str());
    Writer::Write(json_root, stream);
}
void FBXModel::load(const GraphicsDevice& device, const std::string& filename, unsigned keyframes)
{
	if (effect.resource == 0)
		effect = Effect::createFromFile<FBXEffect>(device, Config::getValue(ConfigKeys::fbxEffectPath));

	defaultTexture = Texture::createFromFile(device, defaultTexturePath);
	
	vertexDeclaration = device.createVertexDeclaration(FBXInstance::vertexElements);

	KFbxSdkManager* sdkManager = KFbxSdkManager::Create();
	KFbxIOSettings* ios = KFbxIOSettings::Create(sdkManager, IOSROOT);
	sdkManager->SetIOSettings(ios);

	// Create an importer using our sdk manager.
	KFbxImporter* importer = KFbxImporter::Create(sdkManager, "");

	importer->Initialize(filename.c_str(), -1, sdkManager->GetIOSettings());

	// Create a new scene so it can be populated by the imported file.
	KFbxScene* scene = KFbxScene::Create(sdkManager, "");

	// Import the contents of the file into the scene.
	importer->Import(scene);

	KFbxNode* rootBone = 0;
	KFbxNode* rootNode = scene->GetRootNode();

	KFbxAnimStack* animStack = KFbxCast<KFbxAnimStack>(scene->GetSrcObject(FBX_TYPE(KFbxAnimStack), 0));
	KFbxAnimLayer* animLayer = 0;

	if (animStack)
	{
		animLayer = animStack->GetMember(FBX_TYPE(KFbxAnimLayer), 0);
		scene->GetEvaluator()->SetContext(animStack);
	}

	loadBones(rootNode, &rootBone, animLayer);
	loadMeshes(rootNode, device, KFbxGeometryConverter(sdkManager));

	if (animLayer)
	{
		for (unsigned i = 0; i <= keyframes; ++i)
			boneMatricesMap[i] = traverseBones(i, rootBone, Matrix::identity, MatrixCollection(bones.size()));
	}

	sdkManager->Destroy();

	loaded = true;
}
Beispiel #3
0
int	FBXLoader::Import(char* name)
{
	KFbxSdkManager* manage;
	KFbxIOSettings*	ios;
	KFbxImporter*	import;
	KFbxScene*	scene;
	KFbxNode*	root;
	int		i;
	Node*		Father;
	Scene*		sceneM;

	sceneM = Scene::GetInstance();
	i = 0;
	manage = KFbxSdkManager::Create();
	ios = 	KFbxIOSettings::Create(manage, IOSROOT);
	manage->SetIOSettings(ios);
	import = KFbxImporter::Create(manage, "");
	if (!import->Initialize(name, -1, manage->GetIOSettings()))
	{
		printf("initialize failed\nerror is %s\n",import->GetLastErrorString());
		return (42);
	}
	scene = KFbxScene::Create(manage, "MY SCENE");
	import->Import(scene);
	import->Destroy();
	root = scene->GetRootNode();
	if (root)
	{
		this->Root = new Node();
		this->Root->SetFather(NULL);
		this->Root->SetName("root");
		while (i < root->GetChildCount()) //papa
		{
			Father = new Node();
			Root->AddChild(Father);
			this->PrintNode(root->GetChild(i), Father);
			++i;
		}
	}
	sceneM->AddRoot(this->Root);
	manage->Destroy();
	return (0);
}
osgDB::ReaderWriter::WriteResult ReaderWriterFBX::writeNode(
    const osg::Node& node,
    const std::string& filename,
    const Options* options) const
{
    try
    {
        std::string ext = osgDB::getLowerCaseFileExtension(filename);
        if (!acceptsExtension(ext)) return WriteResult::FILE_NOT_HANDLED;

        osg::ref_ptr<Options> localOptions = options ?
            static_cast<Options*>(options->clone(osg::CopyOp::SHALLOW_COPY)) : new Options;
        localOptions->getDatabasePathList().push_front(osgDB::getFilePath(filename));

        KFbxSdkManager* pSdkManager = KFbxSdkManager::Create();

        if (!pSdkManager)
        {
            return WriteResult::ERROR_IN_WRITING_FILE;
        }

        CleanUpFbx cleanUpFbx(pSdkManager);

        pSdkManager->SetIOSettings(KFbxIOSettings::Create(pSdkManager, IOSROOT));

        bool useFbxRoot = false;
        if (options)
        {
            std::istringstream iss(options->getOptionString());
            std::string opt;
            while (iss >> opt)
            {
                if (opt == "Embedded")
                {
                    pSdkManager->GetIOSettings()->SetBoolProp(EXP_FBX_EMBEDDED, true);
                }
                else if (opt == "UseFbxRoot")
                {
                    useFbxRoot = true;
                }
            }
        }

        KFbxScene* pScene = KFbxScene::Create(pSdkManager, "");
        pluginfbx::WriterNodeVisitor writerNodeVisitor(pScene, pSdkManager, filename,
            options, osgDB::getFilePath(node.getName().empty() ? filename : node.getName()));
        if (useFbxRoot && isBasicRootNode(node))
        {
            // If root node is a simple group, put all elements under the FBX root
            const osg::Group * osgGroup = node.asGroup();
            for(unsigned int child=0; child<osgGroup->getNumChildren(); ++child) {
                const_cast<osg::Node *>(osgGroup->getChild(child))->accept(writerNodeVisitor);
            }
        }
        else {
            // Normal scene
            const_cast<osg::Node&>(node).accept(writerNodeVisitor);
        }

        KFbxExporter* lExporter = KFbxExporter::Create(pSdkManager, "");
        pScene->GetGlobalSettings().SetAxisSystem(KFbxAxisSystem::eOpenGL);

        // Ensure the directory exists or else the FBX SDK will fail
        if (!osgDB::makeDirectoryForFile(filename)) {
            OSG_NOTICE << "Can't create directory for file '" << filename << "'. FBX SDK may fail creating the file." << std::endl;
        }

        // The FBX SDK interprets the filename as UTF-8
#ifdef OSG_USE_UTF8_FILENAME
        const std::string& utf8filename(filename);
#else
        std::string utf8filename(osgDB::convertStringFromCurrentCodePageToUTF8(filename));
#endif

        if (!lExporter->Initialize(utf8filename.c_str()))
        {
            return std::string(lExporter->GetLastErrorString());
        }
        if (!lExporter->Export(pScene))
        {
            return std::string(lExporter->GetLastErrorString());
        }

        return WriteResult::FILE_SAVED;
    }
    catch (const std::string& s)
    {
        return s;
    }
    catch (const char* s)
    {
        return std::string(s);
    }
    catch (...)
    {
    }

    return WriteResult::ERROR_IN_WRITING_FILE;
}
osgDB::ReaderWriter::ReadResult
ReaderWriterFBX::readNode(const std::string& filenameInit,
                          const Options* options) const
{
    try
    {
        std::string ext(osgDB::getLowerCaseFileExtension(filenameInit));
        if (!acceptsExtension(ext)) return ReadResult::FILE_NOT_HANDLED;

        std::string filename(osgDB::findDataFile(filenameInit, options));
        if (filename.empty()) return ReadResult::FILE_NOT_FOUND;

        KFbxSdkManager* pSdkManager = KFbxSdkManager::Create();

        if (!pSdkManager)
        {
            return ReadResult::ERROR_IN_READING_FILE;
        }

        CleanUpFbx cleanUpFbx(pSdkManager);

        pSdkManager->SetIOSettings(KFbxIOSettings::Create(pSdkManager, IOSROOT));

        KFbxScene* pScene = KFbxScene::Create(pSdkManager, "");

        // The FBX SDK interprets the filename as UTF-8
#ifdef OSG_USE_UTF8_FILENAME
        const std::string& utf8filename(filename);
#else
        std::string utf8filename(osgDB::convertStringFromCurrentCodePageToUTF8(filename));
#endif

        KFbxImporter* lImporter = KFbxImporter::Create(pSdkManager, "");

        if (!lImporter->Initialize(utf8filename.c_str(), -1, pSdkManager->GetIOSettings()))
        {
            return std::string(lImporter->GetLastErrorString());
        }

        if (!lImporter->IsFBX())
        {
            return ReadResult::ERROR_IN_READING_FILE;
        }

        for (int i = 0; i < lImporter->GetTakeCount(); i++)
        {
            KFbxTakeInfo* lTakeInfo = lImporter->GetTakeInfo(i);

            lTakeInfo->mSelect = true;
        }

        if (!lImporter->Import(pScene))
        {
            return std::string(lImporter->GetLastErrorString());
        }

        //KFbxAxisSystem::OpenGL.ConvertScene(pScene);        // Doesn't work as expected. Still need to transform vertices.

        if (KFbxNode* pNode = pScene->GetRootNode())
        {
            pScene->SetCurrentTake(pScene->GetCurrentTakeName());

            bool useFbxRoot = false;
            if (options)
            {
                std::istringstream iss(options->getOptionString());
                std::string opt;
                while (iss >> opt)
                {
                    if (opt == "UseFbxRoot")
                    {
                        useFbxRoot = true;
                    }
                }
            }

            osg::ref_ptr<osgAnimation::AnimationManagerBase> pAnimationManager;
            bool bIsBone = false;
            int nLightCount = 0;
            osg::ref_ptr<Options> localOptions = NULL;
            if (options)
                localOptions = options->cloneOptions();
            else
                localOptions = new osgDB::Options();
            localOptions->setObjectCacheHint(osgDB::ReaderWriter::Options::CACHE_IMAGES);

            std::string filePath = osgDB::getFilePath(filename);
            FbxMaterialToOsgStateSet fbxMaterialToOsgStateSet(filePath, localOptions.get());

            std::set<const KFbxNode*> fbxSkeletons;
            findLinkedFbxSkeletonNodes(pNode, fbxSkeletons);

            std::map<KFbxNode*, osg::Node*> nodeMap;
            BindMatrixMap boneBindMatrices;
            std::map<KFbxNode*, osgAnimation::Skeleton*> skeletonMap;
            ReadResult res = readFbxNode(*pSdkManager, *pScene, pNode, pAnimationManager,
                bIsBone, nLightCount, fbxMaterialToOsgStateSet, nodeMap,
                boneBindMatrices, fbxSkeletons, skeletonMap, *localOptions);

            if (res.success())
            {
                fbxMaterialToOsgStateSet.checkInvertTransparency();

                resolveBindMatrices(*res.getNode(), boneBindMatrices, nodeMap);

                osg::Node* osgNode = res.getNode();
                osgNode->getOrCreateStateSet()->setMode(GL_RESCALE_NORMAL,osg::StateAttribute::ON);
                osgNode->getOrCreateStateSet()->setMode(GL_NORMALIZE,osg::StateAttribute::ON);

                if (pAnimationManager.valid())
                {
                    if (osgNode->getUpdateCallback())
                    {
                        osg::Group* osgGroup = new osg::Group;
                        osgGroup->addChild(osgNode);
                        osgNode = osgGroup;
                    }

                    //because the animations may be altered after registering
                    pAnimationManager->buildTargetReference();
                    osgNode->setUpdateCallback(pAnimationManager.get());
                }

                KFbxAxisSystem fbxAxis = pScene->GetGlobalSettings().GetAxisSystem();

                if (fbxAxis != KFbxAxisSystem::OpenGL)
                {
                    int upSign;
                    KFbxAxisSystem::eUpVector eUp = fbxAxis.GetUpVector(upSign);
                    bool bLeftHanded = fbxAxis.GetCoorSystem() == KFbxAxisSystem::LeftHanded;
                    float fSign = upSign < 0 ? -1.0f : 1.0f;
                    float zScale = bLeftHanded ? -1.0f : 1.0f;

                    osg::Matrix mat;
                    switch (eUp)
                    {
                    case KFbxAxisSystem::XAxis:
                        mat.set(0,fSign,0,0,-fSign,0,0,0,0,0,zScale,0,0,0,0,1);
                        break;
                    case KFbxAxisSystem::YAxis:
                        mat.set(1,0,0,0,0,fSign,0,0,0,0,fSign*zScale,0,0,0,0,1);
                        break;
                    case KFbxAxisSystem::ZAxis:
                        mat.set(1,0,0,0,0,0,-fSign*zScale,0,0,fSign,0,0,0,0,0,1);
                        break;
                    }

                    osg::Transform* pTransformTemp = osgNode->asTransform();
                    osg::MatrixTransform* pMatrixTransform = pTransformTemp ?
                        pTransformTemp->asMatrixTransform() : NULL;
                    if (pMatrixTransform)
                    {
                        pMatrixTransform->setMatrix(pMatrixTransform->getMatrix() * mat);
                    }
                    else
                    {
                        pMatrixTransform = new osg::MatrixTransform(mat);
                        if (useFbxRoot && isBasicRootNode(*osgNode))
                        {
                            // If root node is a simple group, put all FBX elements under the OSG root
                            osg::Group* osgGroup = osgNode->asGroup();
                            for(unsigned int i = 0; i < osgGroup->getNumChildren(); ++i)
                            {
                                pMatrixTransform->addChild(osgGroup->getChild(i));
                            }
                            pMatrixTransform->setName(osgGroup->getName());
                        }
                        else
                        {
                            pMatrixTransform->addChild(osgNode);
                        }
                    }
                    osgNode = pMatrixTransform;
                }

                osgNode->setName(filenameInit);
                return osgNode;
            }
        }
    }
    catch (...)
    {
        OSG_WARN << "Exception thrown while importing \"" << filenameInit << '\"' << std::endl;
    }

    return ReadResult::ERROR_IN_READING_FILE;
}