Bone::Bone(FbxScene& scene) {
//construct hierarchy
*this = Bone { *(scene.GetRootNode()) };
std::map<std::string, std::pair<unsigned int, scm::math::mat4f> > bone_info{}
;
unsigned num_bones = 0;
for (unsigned int i = 0; i < scene.GetGeometryCount(); i++) {
FbxGeometry* geo = scene.GetGeometry(i);
if (geo->GetAttributeType() == FbxNodeAttribute::eMesh) {
//check for skinning, use first skin deformer
FbxSkin* skin;
for (unsigned i = 0; i < geo->GetDeformerCount(); ++i) {
FbxDeformer* defPtr = { geo->GetDeformer(i) };
if (defPtr->GetDeformerType() == FbxDeformer::eSkin) {
skin = static_cast<FbxSkin*>(defPtr);
break;
}
}
if (!skin) {
Logger::LOG_ERROR << "Mesh does not contain skin deformer" << std::endl;
assert(false);
}
//one cluster corresponds to one bone
for (unsigned i = 0; i < skin->GetClusterCount(); ++i) {
FbxCluster* cluster = skin->GetCluster(i);
FbxNode* node = cluster->GetLink();
if (!node) {
Logger::LOG_ERROR << "associated node does not exist!" << std::endl;
assert(false);
}
std::string bone_name(node->GetName());
//helper to check for matrix magnitude
auto magnitude = [](scm::math::mat4f const & mat)->float {
float mag = 0.0f;
for (unsigned i = 0; i < 16; ++i) {
mag += mat[i] * mat[i];
}
return mag;
}
;
//reference pose of bone
FbxAMatrix bind_transform;
cluster->GetTransformLinkMatrix(bind_transform);
//check if the clusters have an extra transformation
FbxAMatrix cluster_transform;
cluster->GetTransformMatrix(cluster_transform);
if (magnitude(to_gua::mat4f(cluster_transform) -
scm::math::mat4f::identity()) > 0.000000001f) {
Logger::LOG_WARNING
<< "weight cluster of bone '" << bone_name
<< "' has transformation, animation will be skewed" << std::endl;
}
//add bone to list if it is not already included
if (bone_info.find(bone_name) == bone_info.end()) {
bone_info[bone_name] = std::make_pair(
num_bones,
to_gua::mat4f(bind_transform.Inverse() * cluster_transform));
++num_bones;
}
}
// traverse hierarchy and set accumulated values in the bone
this->set_properties(bone_info);
}
}
}
float UFBXBLUEPRINT::getCircleAreaDLL() //(float radius)
{
// Create the FBX SDK manager
FbxManager* lSdkManager = FbxManager::Create();
// Create an IOSettings object.
FbxIOSettings * ios = FbxIOSettings::Create(lSdkManager, IOSROOT);
lSdkManager->SetIOSettings(ios);
// ... Configure the FbxIOSettings object ...
// Create an importer.
FbxImporter* lImporter = FbxImporter::Create(lSdkManager, "");
// Declare the path and filename of the file containing the scene.
// In this case, we are assuming the file is in the same directory as the executable.
const char* lFilename = "file.fbx";
// Initialize the importer.
bool lImportStatus = lImporter->Initialize(lFilename, -1, lSdkManager->GetIOSettings());
if (!lImportStatus) {
printf("Call to FbxImporter::Initialize() failed.\n");
printf("Error returned: %s\n\n", lImporter->GetStatus().GetErrorString());
exit(-1);
}
// Create a new scene so it can be populated by the imported file.
FbxScene* lScene = FbxScene::Create(lSdkManager, "myScene");
// Import the contents of the file into the scene.
lImporter->Import(lScene);
// The file has been imported; we can get rid of the importer.
lImporter->Destroy();
// File format version numbers to be populated.
int lFileMajor, lFileMinor, lFileRevision;
// Populate the FBX file format version numbers with the import file.
lImporter->GetFileVersion(lFileMajor, lFileMinor, lFileRevision);
int numofgeometrys = lScene->GetGeometryCount();
for (int i = 0; i < numofgeometrys; i++)
{
fbxsdk::FbxGeometry* fbxgeo = lScene->GetGeometry(i);
// fbxsdk::FbxMesh* fbxmesh = fbxgeo->Get
if (fbxgeo != 0)
{
int numofcontrolpoints =fbxgeo->GetControlPointsCount();
FbxVector4* controlpoints = fbxgeo->GetControlPoints(0);
// x[12] = controlpoints[12]->mData[0];
//Fbxsdk::FbxVector4* pNormalArray;
//fbxgeo->GetNormals(pNormalArray);
//fbxgeo->GetNormalsIndices();
// fbxgeo->GetNormals();
// fbxgeo->get
}
}
/*
FbxClassId lShaderClassID = lSdkManager->FindFbxFileClass("Shader", "FlatShader");
for(int i = 0; i < lNode->GetSrcObjectCount(lShaderClassID); i++)
{
FbxObject* lObject = lNode->GetSrcObject(lShaderClassID, i);
}
*/
return 1.00f;
}