Add MikkTSpace Tangets code as 3rdparty lib

code/PostProcessing/GenerateMikkTSpaceTangents.cpp

@@ -50,7 +50,7 @@ static void get_tex_coords(const SMikkTSpaceContext *context, float outuv[], int
     } else if (currentMesh->mNumUVComponents[iVert] == 3){
         outuv[0] = t.x;
         outuv[1] = t.y;
-        outuv[2] = t.z;
+        outuv[2] = 0.0;
     }
 }
 

code/PostProcessing/GenerateMikkTSpaceTangents.h

@@ -11,9 +11,11 @@ public:
     ~GenerateMikkTSpaceTangents() override = default;
     bool IsActive(unsigned int pFlags) const override;
     void Execute(aiScene* pScene) override;
+    void SetupProperties(const Importer *pImp) override;
     void ExecutePerMesh(aiMesh *mesh);
 
 private:
+    bool mActive = false;
     SMikkTSpaceInterface mIface;
     SMikkTSpaceContext mContext;
 };