Merge branch 'master' into develop_kimkulling

Readme.md

@@ -35,29 +35,29 @@ Please check our Wiki as well: https://github.com/assimp/assimp/wiki
 __Importers__:
 
 - 3D
-- 3DS
-- 3MF
+- [3DS](https://en.wikipedia.org/wiki/.3ds)
+- [3MF](https://en.wikipedia.org/wiki/3D_Manufacturing_Format)
 - AC
-- AC3D
+- [AC3D](https://en.wikipedia.org/wiki/AC3D)
 - ACC
 - AMJ
 - ASE
 - ASK
 - B3D
-- BLEND (Blender)
-- BVH
-- COB
+- [BLEND](https://en.wikipedia.org/wiki/.blend_(file_format))
+- [BVH](https://en.wikipedia.org/wiki/Biovision_Hierarchy)
 - CMS
-- DAE/Collada
-- DXF
+- COB
+- [DAE/Collada](https://en.wikipedia.org/wiki/COLLADA)
+- [DXF](https://en.wikipedia.org/wiki/AutoCAD_DXF)
 - ENFF
-- FBX
-- glTF 1.0 + GLB
-- glTF 2.0
+- [FBX](https://en.wikipedia.org/wiki/FBX)
+- [glTF 1.0](https://en.wikipedia.org/wiki/GlTF#glTF_1.0) + GLB
+- [glTF 2.0](https://en.wikipedia.org/wiki/GlTF#glTF_2.0)
 - HMB
 - IFC-STEP
 - IRR / IRRMESH
-- LWO
+- [LWO](https://en.wikipedia.org/wiki/LightWave_3D)
 - LWS
 - LXO
 - MD2
@@ -70,10 +70,10 @@ __Importers__:
 - MS3D
 - NDO
 - NFF
-- OBJ
-- OFF
-- OGEX
-- PLY
+- [OBJ](https://en.wikipedia.org/wiki/Wavefront_.obj_file)
+- [OFF](https://en.wikipedia.org/wiki/OFF_(file_format))
+- [OGEX](https://en.wikipedia.org/wiki/Open_Game_Engine_Exchange)
+- [PLY](https://en.wikipedia.org/wiki/PLY_(file_format))
 - PMX
 - PRJ
 - Q3O
@@ -82,19 +82,19 @@ __Importers__:
 - SCN
 - SIB
 - SMD
-- STL
-- STP
+- [STP](https://en.wikipedia.org/wiki/ISO_10303-21)
+- [STL](https://en.wikipedia.org/wiki/STL_(file_format))
 - TER
 - UC
 - VTA
 - X
-- X3D
+- [X3D](https://en.wikipedia.org/wiki/X3D)
 - XGL
 - ZGL
 
 Additionally, some formats are supported by dependency on non-free code or external SDKs (not built by default):
 
-- C4D (https://github.com/assimp/assimp/wiki/Cinema4D-&-Melange)
+- [C4D](https://en.wikipedia.org/wiki/Cinema_4D) (https://github.com/assimp/assimp/wiki/Cinema4D-&-Melange)
 
 __Exporters__:
 

assimp-config.cmake.in

@@ -34,36 +34,18 @@ if( MSVC )
   else()
     set(MSVC_PREFIX "vc150")
   endif()
-  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@-${MSVC_PREFIX}-mt" CACHE STRING "the suffix for the assimp windows library" FORCE)
+  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@-${MSVC_PREFIX}-mt" CACHE STRING "the suffix for the assimp windows library" )
 else()
-  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@" CACHE STRING "the suffix for the openrave libraries" FORCE)
+  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@" CACHE STRING "the suffix for the openrave libraries" )
 endif()
 
 set( ASSIMP_CXX_FLAGS ) # dynamically linked library
-if( WIN32 )
-  # for visual studio linking, most of the time boost dlls will be used
-  set( ASSIMP_CXX_FLAGS " -DBOOST_ALL_DYN_LINK -DBOOST_ALL_NO_LIB")
-endif()
 set( ASSIMP_LINK_FLAGS "" )
 set( ASSIMP_LIBRARY_DIRS "${ASSIMP_ROOT_DIR}/@ASSIMP_LIB_INSTALL_DIR@")
 set( ASSIMP_INCLUDE_DIRS "${ASSIMP_ROOT_DIR}/@ASSIMP_INCLUDE_INSTALL_DIR@")
 set( ASSIMP_LIBRARIES assimp${ASSIMP_LIBRARY_SUFFIX})
 set( ASSIMP_LIBRARIES ${ASSIMP_LIBRARIES}@CMAKE_DEBUG_POSTFIX@)
 
-# search for the boost version assimp was compiled with
-#set(Boost_USE_MULTITHREAD ON)
-#set(Boost_USE_STATIC_LIBS OFF)
-#set(Boost_USE_STATIC_RUNTIME OFF)
-#find_package(Boost ${ASSIMP_Boost_VERSION} EXACT COMPONENTS thread date_time)
-#if(Boost_VERSION AND NOT "${Boost_VERSION}" STREQUAL "0")
-#	set( ASSIMP_INCLUDE_DIRS "${ASSIMP_INCLUDE_DIRS}" ${Boost_INCLUDE_DIRS})
-#else(Boost_VERSION AND NOT "${Boost_VERSION}" STREQUAL "0")
-#	message(WARNING "Failed to find Boost ${ASSIMP_Boost_VERSION} necessary for assimp")
-#endif(Boost_VERSION AND NOT "${Boost_VERSION}" STREQUAL "0")
-
-# the boost version assimp was compiled with
-set( ASSIMP_Boost_VERSION "@Boost_MAJOR_VERSION@.@Boost_MINOR_VERSION@")
-
 # for compatibility with pkg-config
 set(ASSIMP_CFLAGS_OTHER "${ASSIMP_CXX_FLAGS}")
 set(ASSIMP_LDFLAGS_OTHER "${ASSIMP_LINK_FLAGS}")
@@ -74,7 +56,6 @@ MARK_AS_ADVANCED(
   ASSIMP_LINK_FLAGS
   ASSIMP_INCLUDE_DIRS
   ASSIMP_LIBRARIES
-  ASSIMP_Boost_VERSION
   ASSIMP_CFLAGS_OTHER
   ASSIMP_LDFLAGS_OTHER
   ASSIMP_LIBRARY_SUFFIX

code/COBLoader.cpp

@@ -47,11 +47,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef ASSIMP_BUILD_NO_COB_IMPORTER
 #include "COBLoader.h"
 #include "COBScene.h"
-
+#include "ConvertToLHProcess.h"
 #include <assimp/StreamReader.h>
 #include <assimp/ParsingUtils.h>
 #include <assimp/fast_atof.h>
-
 #include <assimp/LineSplitter.h>
 #include <assimp/TinyFormatter.h>
 #include <memory>
@@ -105,7 +104,7 @@ COBImporter::~COBImporter()
 bool COBImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
 {
     const std::string& extension = GetExtension(pFile);
-    if (extension == "cob" || extension == "scn") {
+    if (extension == "cob" || extension == "scn" || extension == "COB" || extension == "SCN") {
         return true;
     }
 
@@ -225,6 +224,9 @@ void COBImporter::InternReadFile( const std::string& pFile,
     }
 
     pScene->mRootNode = BuildNodes(*root.get(),scene,pScene);
+	//flip normals after import
+    FlipWindingOrderProcess flip;
+    flip.Execute( pScene );
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -1299,3 +1301,4 @@ void COBImporter::ReadUnit_Binary(COB::Scene& out, StreamReaderLE& reader, const
 
 
 #endif
+

code/Exporter.cpp

@@ -98,7 +98,7 @@ void ExportSceneAssbin(const char*, IOSystem*, const aiScene*, const ExportPrope
 void ExportSceneAssxml(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneX3D(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneFBX(const char*, IOSystem*, const aiScene*, const ExportProperties*);
-//void ExportSceneFBXA(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneFBXA(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportScene3MF( const char*, IOSystem*, const aiScene*, const ExportProperties* );
 
 // ------------------------------------------------------------------------------------------------
@@ -173,7 +173,7 @@ Exporter::ExportFormatEntry gExporters[] =
 
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
     Exporter::ExportFormatEntry( "fbx", "Autodesk FBX (binary)", "fbx", &ExportSceneFBX, 0 ),
-    //Exporter::ExportFormatEntry( "fbxa", "Autodesk FBX (ascii)", "fbx", &ExportSceneFBXA, 0 ),
+    Exporter::ExportFormatEntry( "fbxa", "Autodesk FBX (ascii)", "fbx", &ExportSceneFBXA, 0 ),
 #endif
 
 #ifndef ASSIMP_BUILD_NO_3MF_EXPORTER

code/FBXExportNode.cpp

@@ -45,9 +45,13 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "FBXCommon.h"
 
 #include <assimp/StreamWriter.h> // StreamWriterLE
+#include <assimp/Exceptional.h> // DeadlyExportError
 #include <assimp/ai_assert.h>
+#include <assimp/StringUtils.h> // ai_snprintf
 
 #include <string>
+#include <ostream>
+#include <sstream> // ostringstream
 #include <memory> // shared_ptr
 
 // AddP70<type> helpers... there's no usable pattern here,
@@ -145,33 +149,174 @@ void FBX::Node::AddP70time(
 }
 
 
-// public member functions for writing to binary fbx
+// public member functions for writing nodes to stream
 
-void FBX::Node::Dump(std::shared_ptr<Assimp::IOStream> outfile)
-{
-    Assimp::StreamWriterLE outstream(outfile);
-    Dump(outstream);
+void FBX::Node::Dump(
+    std::shared_ptr<Assimp::IOStream> outfile,
+    bool binary, int indent
+) {
+    if (binary) {
+        Assimp::StreamWriterLE outstream(outfile);
+        DumpBinary(outstream);
+    } else {
+        std::ostringstream ss;
+        DumpAscii(ss, indent);
+        std::string s = ss.str();
+        outfile->Write(s.c_str(), s.size(), 1);
+    }
+}
+
+void FBX::Node::Dump(
+    Assimp::StreamWriterLE &outstream,
+    bool binary, int indent
+) {
+    if (binary) {
+        DumpBinary(outstream);
+    } else {
+        std::ostringstream ss;
+        DumpAscii(ss, indent);
+        outstream.PutString(ss.str());
+    }
+}
+
+
+// public member functions for low-level writing
+
+void FBX::Node::Begin(
+    Assimp::StreamWriterLE &s,
+    bool binary, int indent
+) {
+    if (binary) {
+        BeginBinary(s);
+    } else {
+        // assume we're at the correct place to start already
+        (void)indent;
+        std::ostringstream ss;
+        BeginAscii(ss, indent);
+        s.PutString(ss.str());
+    }
+}
+
+void FBX::Node::DumpProperties(
+    Assimp::StreamWriterLE& s,
+    bool binary, int indent
+) {
+    if (binary) {
+        DumpPropertiesBinary(s);
+    } else {
+        std::ostringstream ss;
+        DumpPropertiesAscii(ss, indent);
+        s.PutString(ss.str());
+    }
 }
 
-void FBX::Node::Dump(Assimp::StreamWriterLE &s)
+void FBX::Node::EndProperties(
+    Assimp::StreamWriterLE &s,
+    bool binary, int indent
+) {
+    EndProperties(s, binary, indent, properties.size());
+}
+
+void FBX::Node::EndProperties(
+    Assimp::StreamWriterLE &s,
+    bool binary, int indent,
+    size_t num_properties
+) {
+    if (binary) {
+        EndPropertiesBinary(s, num_properties);
+    } else {
+        // nothing to do
+        (void)indent;
+    }
+}
+
+void FBX::Node::BeginChildren(
+    Assimp::StreamWriterLE &s,
+    bool binary, int indent
+) {
+    if (binary) {
+        // nothing to do
+    } else {
+        std::ostringstream ss;
+        BeginChildrenAscii(ss, indent);
+        s.PutString(ss.str());
+    }
+}
+
+void FBX::Node::DumpChildren(
+    Assimp::StreamWriterLE& s,
+    bool binary, int indent
+) {
+    if (binary) {
+        DumpChildrenBinary(s);
+    } else {
+        std::ostringstream ss;
+        DumpChildrenAscii(ss, indent);
+        s.PutString(ss.str());
+    }
+}
+
+void FBX::Node::End(
+    Assimp::StreamWriterLE &s,
+    bool binary, int indent,
+    bool has_children
+) {
+    if (binary) {
+        EndBinary(s, has_children);
+    } else {
+        std::ostringstream ss;
+        EndAscii(ss, indent, has_children);
+        s.PutString(ss.str());
+    }
+}
+
+
+// public member functions for writing to binary fbx
+
+void FBX::Node::DumpBinary(Assimp::StreamWriterLE &s)
 {
     // write header section (with placeholders for some things)
-    Begin(s);
+    BeginBinary(s);
 
     // write properties
-    DumpProperties(s);
+    DumpPropertiesBinary(s);
 
     // go back and fill in property related placeholders
-    EndProperties(s, properties.size());
+    EndPropertiesBinary(s, properties.size());
 
     // write children
-    DumpChildren(s);
+    DumpChildrenBinary(s);
 
     // finish, filling in end offset placeholder
-    End(s, !children.empty());
+    EndBinary(s, force_has_children || !children.empty());
 }
 
-void FBX::Node::Begin(Assimp::StreamWriterLE &s)
+
+// public member functions for writing to ascii fbx
+
+void FBX::Node::DumpAscii(std::ostream &s, int indent)
+{
+    // write name
+    BeginAscii(s, indent);
+
+    // write properties
+    DumpPropertiesAscii(s, indent);
+
+    if (force_has_children || !children.empty()) {
+        // begin children (with a '{')
+        BeginChildrenAscii(s, indent + 1);
+        // write children
+        DumpChildrenAscii(s, indent + 1);
+    }
+
+    // finish (also closing the children bracket '}')
+    EndAscii(s, indent, force_has_children || !children.empty());
+}
+
+
+// private member functions for low-level writing to fbx
+
+void FBX::Node::BeginBinary(Assimp::StreamWriterLE &s)
 {
     // remember start pos so we can come back and write the end pos
     this->start_pos = s.Tell();
@@ -189,26 +334,14 @@ void FBX::Node::Begin(Assimp::StreamWriterLE &s)
     this->property_start = s.Tell();
 }
 
-void FBX::Node::DumpProperties(Assimp::StreamWriterLE& s)
+void FBX::Node::DumpPropertiesBinary(Assimp::StreamWriterLE& s)
 {
     for (auto &p : properties) {
-        p.Dump(s);
-    }
-}
-
-void FBX::Node::DumpChildren(Assimp::StreamWriterLE& s)
-{
-    for (FBX::Node& child : children) {
-        child.Dump(s);
+        p.DumpBinary(s);
     }
 }
 
-void FBX::Node::EndProperties(Assimp::StreamWriterLE &s)
-{
-    EndProperties(s, properties.size());
-}
-
-void FBX::Node::EndProperties(
+void FBX::Node::EndPropertiesBinary(
     Assimp::StreamWriterLE &s,
     size_t num_properties
 ) {
@@ -222,7 +355,14 @@ void FBX::Node::EndProperties(
     s.Seek(pos);
 }
 
-void FBX::Node::End(
+void FBX::Node::DumpChildrenBinary(Assimp::StreamWriterLE& s)
+{
+    for (FBX::Node& child : children) {
+        child.DumpBinary(s);
+    }
+}
+
+void FBX::Node::EndBinary(
     Assimp::StreamWriterLE &s,
     bool has_children
 ) {
@@ -237,48 +377,192 @@ void FBX::Node::End(
 }
 
 
-// static member functions
+void FBX::Node::BeginAscii(std::ostream& s, int indent)
+{
+    s << '\n';
+    for (int i = 0; i < indent; ++i) { s << '\t'; }
+    s << name << ": ";
+}
 
-// convenience function to create and write a property node,
-// holding a single property which is an array of values.
-// does not copy the data, so is efficient for large arrays.
+void FBX::Node::DumpPropertiesAscii(std::ostream &s, int indent)
+{
+    for (size_t i = 0; i < properties.size(); ++i) {
+        if (i > 0) { s << ", "; }
+        properties[i].DumpAscii(s, indent);
+    }
+}
+
+void FBX::Node::BeginChildrenAscii(std::ostream& s, int indent)
+{
+    // only call this if there are actually children
+    s << " {";
+    (void)indent;
+}
+
+void FBX::Node::DumpChildrenAscii(std::ostream& s, int indent)
+{
+    // children will need a lot of padding and corralling
+    if (children.size() || force_has_children) {
+        for (size_t i = 0; i < children.size(); ++i) {
+            // no compression in ascii files, so skip this node if it exists
+            if (children[i].name == "EncryptionType") { continue; }
+            // the child can dump itself
+            children[i].DumpAscii(s, indent);
+        }
+    }
+}
+
+void FBX::Node::EndAscii(std::ostream& s, int indent, bool has_children)
+{
+    if (!has_children) { return; } // nothing to do
+    s << '\n';
+    for (int i = 0; i < indent; ++i) { s << '\t'; }
+    s << "}";
+}
+
+// private helpers for static member functions
+
+// ascii property node from vector of doubles
+void FBX::Node::WritePropertyNodeAscii(
+    const std::string& name,
+    const std::vector<double>& v,
+    Assimp::StreamWriterLE& s,
+    int indent
+){
+    char buffer[32];
+    FBX::Node node(name);
+    node.Begin(s, false, indent);
+    std::string vsize = std::to_string(v.size());
+    // *<size> {
+    s.PutChar('*'); s.PutString(vsize); s.PutString(" {\n");
+    // indent + 1
+    for (int i = 0; i < indent + 1; ++i) { s.PutChar('\t'); }
+    // a: value,value,value,...
+    s.PutString("a: ");
+    int count = 0;
+    for (size_t i = 0; i < v.size(); ++i) {
+        if (i > 0) { s.PutChar(','); }
+        int len = ai_snprintf(buffer, sizeof(buffer), "%f", v[i]);
+        count += len;
+        if (count > 2048) { s.PutChar('\n'); count = 0; }
+        if (len < 0 || len > 31) {
+            // this should never happen
+            throw DeadlyExportError("failed to convert double to string");
+        }
+        for (int j = 0; j < len; ++j) { s.PutChar(buffer[j]); }
+    }
+    // }
+    s.PutChar('\n');
+    for (int i = 0; i < indent; ++i) { s.PutChar('\t'); }
+    s.PutChar('}'); s.PutChar(' ');
+    node.End(s, false, indent, false);
+}
+
+// ascii property node from vector of int32_t
+void FBX::Node::WritePropertyNodeAscii(
+    const std::string& name,
+    const std::vector<int32_t>& v,
+    Assimp::StreamWriterLE& s,
+    int indent
+){
+    char buffer[32];
+    FBX::Node node(name);
+    node.Begin(s, false, indent);
+    std::string vsize = std::to_string(v.size());
+    // *<size> {
+    s.PutChar('*'); s.PutString(vsize); s.PutString(" {\n");
+    // indent + 1
+    for (int i = 0; i < indent + 1; ++i) { s.PutChar('\t'); }
+    // a: value,value,value,...
+    s.PutString("a: ");
+    int count = 0;
+    for (size_t i = 0; i < v.size(); ++i) {
+        if (i > 0) { s.PutChar(','); }
+        int len = ai_snprintf(buffer, sizeof(buffer), "%d", v[i]);
+        count += len;
+        if (count > 2048) { s.PutChar('\n'); count = 0; }
+        if (len < 0 || len > 31) {
+            // this should never happen
+            throw DeadlyExportError("failed to convert double to string");
+        }
+        for (int j = 0; j < len; ++j) { s.PutChar(buffer[j]); }
+    }
+    // }
+    s.PutChar('\n');
+    for (int i = 0; i < indent; ++i) { s.PutChar('\t'); }
+    s.PutChar('}'); s.PutChar(' ');
+    node.End(s, false, indent, false);
+}
+
+// binary property node from vector of doubles
 // TODO: optional zip compression!
-void FBX::Node::WritePropertyNode(
+void FBX::Node::WritePropertyNodeBinary(
     const std::string& name,
     const std::vector<double>& v,
     Assimp::StreamWriterLE& s
 ){
-    Node node(name);
-    node.Begin(s);
+    FBX::Node node(name);
+    node.BeginBinary(s);
     s.PutU1('d');
     s.PutU4(uint32_t(v.size())); // number of elements
     s.PutU4(0); // no encoding (1 would be zip-compressed)
     s.PutU4(uint32_t(v.size()) * 8); // data size
     for (auto it = v.begin(); it != v.end(); ++it) { s.PutF8(*it); }
-    node.EndProperties(s, 1);
-    node.End(s, false);
+    node.EndPropertiesBinary(s, 1);
+    node.EndBinary(s, false);
 }
 
-// convenience function to create and write a property node,
-// holding a single property which is an array of values.
-// does not copy the data, so is efficient for large arrays.
+// binary property node from vector of int32_t
 // TODO: optional zip compression!
-void FBX::Node::WritePropertyNode(
+void FBX::Node::WritePropertyNodeBinary(
     const std::string& name,
     const std::vector<int32_t>& v,
     Assimp::StreamWriterLE& s
 ){
-    Node node(name);
-    node.Begin(s);
+    FBX::Node node(name);
+    node.BeginBinary(s);
     s.PutU1('i');
     s.PutU4(uint32_t(v.size())); // number of elements
     s.PutU4(0); // no encoding (1 would be zip-compressed)
     s.PutU4(uint32_t(v.size()) * 4); // data size
     for (auto it = v.begin(); it != v.end(); ++it) { s.PutI4(*it); }
-    node.EndProperties(s, 1);
-    node.End(s, false);
+    node.EndPropertiesBinary(s, 1);
+    node.EndBinary(s, false);
 }
 
+// public static member functions
+
+// convenience function to create and write a property node,
+// holding a single property which is an array of values.
+// does not copy the data, so is efficient for large arrays.
+void FBX::Node::WritePropertyNode(
+    const std::string& name,
+    const std::vector<double>& v,
+    Assimp::StreamWriterLE& s,
+    bool binary, int indent
+){
+    if (binary) {
+        FBX::Node::WritePropertyNodeBinary(name, v, s);
+    } else {
+        FBX::Node::WritePropertyNodeAscii(name, v, s, indent);
+    }
+}
+
+// convenience function to create and write a property node,
+// holding a single property which is an array of values.
+// does not copy the data, so is efficient for large arrays.
+void FBX::Node::WritePropertyNode(
+    const std::string& name,
+    const std::vector<int32_t>& v,
+    Assimp::StreamWriterLE& s,
+    bool binary, int indent
+){
+    if (binary) {
+        FBX::Node::WritePropertyNodeBinary(name, v, s);
+    } else {
+        FBX::Node::WritePropertyNodeAscii(name, v, s, indent);
+    }
+}
 
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
 #endif // ASSIMP_BUILD_NO_EXPORT

code/FBXExportNode.h

@@ -66,14 +66,18 @@ public: // public data members
     std::vector<FBX::Property> properties; // node properties
     std::vector<FBX::Node> children; // child nodes
 
+    // some nodes always pretend they have children...
+    bool force_has_children = false;
+
 public: // constructors
     Node() = default;
     Node(const std::string& n) : name(n) {}
-    Node(const std::string& n, const FBX::Property &p)
+
+    // convenience template to construct with properties directly
+    template <typename... More>
+    Node(const std::string& n, const More... more)
         : name(n)
-        { properties.push_back(p); }
-    Node(const std::string& n, const std::vector<FBX::Property> &pv)
-        : name(n), properties(pv) {}
+        { AddProperties(more...); }
 
 public: // functions to add properties or children
     // add a single property to the node
@@ -138,19 +142,48 @@ public: // support specifically for dealing with Properties70 nodes
 
 public: // member functions for writing data to a file or stream
 
-    // write the full node as binary data to the given file or stream
-    void Dump(std::shared_ptr<Assimp::IOStream> outfile);
-    void Dump(Assimp::StreamWriterLE &s);
+    // write the full node to the given file or stream
+    void Dump(
+        std::shared_ptr<Assimp::IOStream> outfile,
+        bool binary, int indent
+    );
+    void Dump(Assimp::StreamWriterLE &s, bool binary, int indent);
 
     // these other functions are for writing data piece by piece.
     // they must be used carefully.
     // for usage examples see FBXExporter.cpp.
-    void Begin(Assimp::StreamWriterLE &s);
-    void DumpProperties(Assimp::StreamWriterLE& s);
-    void EndProperties(Assimp::StreamWriterLE &s);
-    void EndProperties(Assimp::StreamWriterLE &s, size_t num_properties);
-    void DumpChildren(Assimp::StreamWriterLE& s);
-    void End(Assimp::StreamWriterLE &s, bool has_children);
+    void Begin(Assimp::StreamWriterLE &s, bool binary, int indent);
+    void DumpProperties(Assimp::StreamWriterLE& s, bool binary, int indent);
+    void EndProperties(Assimp::StreamWriterLE &s, bool binary, int indent);
+    void EndProperties(
+        Assimp::StreamWriterLE &s, bool binary, int indent,
+        size_t num_properties
+    );
+    void BeginChildren(Assimp::StreamWriterLE &s, bool binary, int indent);
+    void DumpChildren(Assimp::StreamWriterLE& s, bool binary, int indent);
+    void End(
+        Assimp::StreamWriterLE &s, bool binary, int indent,
+        bool has_children
+    );
+
+private: // internal functions used for writing
+
+    void DumpBinary(Assimp::StreamWriterLE &s);
+    void DumpAscii(Assimp::StreamWriterLE &s, int indent);
+    void DumpAscii(std::ostream &s, int indent);
+
+    void BeginBinary(Assimp::StreamWriterLE &s);
+    void DumpPropertiesBinary(Assimp::StreamWriterLE& s);
+    void EndPropertiesBinary(Assimp::StreamWriterLE &s);
+    void EndPropertiesBinary(Assimp::StreamWriterLE &s, size_t num_properties);
+    void DumpChildrenBinary(Assimp::StreamWriterLE& s);
+    void EndBinary(Assimp::StreamWriterLE &s, bool has_children);
+
+    void BeginAscii(std::ostream &s, int indent);
+    void DumpPropertiesAscii(std::ostream &s, int indent);
+    void BeginChildrenAscii(std::ostream &s, int indent);
+    void DumpChildrenAscii(std::ostream &s, int indent);
+    void EndAscii(std::ostream &s, int indent, bool has_children);
 
 private: // data used for binary dumps
     size_t start_pos; // starting position in stream
@@ -165,11 +198,12 @@ public: // static member functions
     static void WritePropertyNode(
         const std::string& name,
         const T value,
-        Assimp::StreamWriterLE& s
+        Assimp::StreamWriterLE& s,
+        bool binary, int indent
     ) {
         FBX::Property p(value);
         FBX::Node node(name, p);
-        node.Dump(s);
+        node.Dump(s, binary, indent);
     }
 
     // convenience function to create and write a property node,
@@ -178,17 +212,44 @@ public: // static member functions
     static void WritePropertyNode(
         const std::string& name,
         const std::vector<double>& v,
-        Assimp::StreamWriterLE& s
+        Assimp::StreamWriterLE& s,
+        bool binary, int indent
     );
 
     // convenience function to create and write a property node,
     // holding a single property which is an array of values.
     // does not copy the data, so is efficient for large arrays.
     static void WritePropertyNode(
+        const std::string& name,
+        const std::vector<int32_t>& v,
+        Assimp::StreamWriterLE& s,
+        bool binary, int indent
+    );
+
+private: // static helper functions
+    static void WritePropertyNodeAscii(
+        const std::string& name,
+        const std::vector<double>& v,
+        Assimp::StreamWriterLE& s,
+        int indent
+    );
+    static void WritePropertyNodeAscii(
+        const std::string& name,
+        const std::vector<int32_t>& v,
+        Assimp::StreamWriterLE& s,
+        int indent
+    );
+    static void WritePropertyNodeBinary(
+        const std::string& name,
+        const std::vector<double>& v,
+        Assimp::StreamWriterLE& s
+    );
+    static void WritePropertyNodeBinary(
         const std::string& name,
         const std::vector<int32_t>& v,
         Assimp::StreamWriterLE& s
     );
+
 };
 
 

code/FBXExportProperty.cpp

@@ -48,7 +48,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <string>
 #include <vector>
-#include <sstream> // stringstream
+#include <ostream>
+#include <locale>
+#include <sstream> // ostringstream
 
 
 // constructors for single element properties
@@ -164,18 +166,18 @@ size_t FBX::Property::size()
     }
 }
 
-void FBX::Property::Dump(Assimp::StreamWriterLE &s)
+void FBX::Property::DumpBinary(Assimp::StreamWriterLE &s)
 {
     s.PutU1(type);
-    uint8_t* d;
+    uint8_t* d = data.data();
     size_t N;
     switch (type) {
-    case 'C': s.PutU1(*(reinterpret_cast<uint8_t*>(data.data()))); return;
-    case 'Y': s.PutI2(*(reinterpret_cast<int16_t*>(data.data()))); return;
-    case 'I': s.PutI4(*(reinterpret_cast<int32_t*>(data.data()))); return;
-    case 'F': s.PutF4(*(reinterpret_cast<float*>(data.data()))); return;
-    case 'D': s.PutF8(*(reinterpret_cast<double*>(data.data()))); return;
-    case 'L': s.PutI8(*(reinterpret_cast<int64_t*>(data.data()))); return;
+    case 'C': s.PutU1(*(reinterpret_cast<uint8_t*>(d))); return;
+    case 'Y': s.PutI2(*(reinterpret_cast<int16_t*>(d))); return;
+    case 'I': s.PutI4(*(reinterpret_cast<int32_t*>(d))); return;
+    case 'F': s.PutF4(*(reinterpret_cast<float*>(d))); return;
+    case 'D': s.PutF8(*(reinterpret_cast<double*>(d))); return;
+    case 'L': s.PutI8(*(reinterpret_cast<int64_t*>(d))); return;
     case 'S':
     case 'R':
         s.PutU4(uint32_t(data.size()));
@@ -187,7 +189,6 @@ void FBX::Property::Dump(Assimp::StreamWriterLE &s)
         s.PutU4(0); // no encoding (1 would be zip-compressed)
         // TODO: compress if large?
         s.PutU4(uint32_t(data.size())); // data size
-        d = data.data();
         for (size_t i = 0; i < N; ++i) {
             s.PutI4((reinterpret_cast<int32_t*>(d))[i]);
         }
@@ -198,7 +199,6 @@ void FBX::Property::Dump(Assimp::StreamWriterLE &s)
         s.PutU4(0); // no encoding (1 would be zip-compressed)
         // TODO: compress if large?
         s.PutU4(uint32_t(data.size())); // data size
-        d = data.data();
         for (size_t i = 0; i < N; ++i) {
             s.PutI8((reinterpret_cast<int64_t*>(d))[i]);
         }
@@ -209,7 +209,6 @@ void FBX::Property::Dump(Assimp::StreamWriterLE &s)
         s.PutU4(0); // no encoding (1 would be zip-compressed)
         // TODO: compress if large?
         s.PutU4(uint32_t(data.size())); // data size
-        d = data.data();
         for (size_t i = 0; i < N; ++i) {
             s.PutF4((reinterpret_cast<float*>(d))[i]);
         }
@@ -220,18 +219,146 @@ void FBX::Property::Dump(Assimp::StreamWriterLE &s)
         s.PutU4(0); // no encoding (1 would be zip-compressed)
         // TODO: compress if large?
         s.PutU4(uint32_t(data.size())); // data size
-        d = data.data();
         for (size_t i = 0; i < N; ++i) {
             s.PutF8((reinterpret_cast<double*>(d))[i]);
         }
         return;
     default:
-        std::stringstream err;
+        std::ostringstream err;
         err << "Tried to dump property with invalid type '";
         err << type << "'!";
         throw DeadlyExportError(err.str());
     }
 }
 
+void FBX::Property::DumpAscii(Assimp::StreamWriterLE &outstream, int indent)
+{
+    std::ostringstream ss;
+    ss.imbue(std::locale::classic());
+    ss.precision(15); // this seems to match official FBX SDK exports
+    DumpAscii(ss, indent);
+    outstream.PutString(ss.str());
+}
+
+void FBX::Property::DumpAscii(std::ostream& s, int indent)
+{
+    // no writing type... or anything. just shove it into the stream.
+    uint8_t* d = data.data();
+    size_t N;
+    size_t swap = data.size();
+    size_t count = 0;
+    switch (type) {
+    case 'C':
+        if (*(reinterpret_cast<uint8_t*>(d))) { s << 'T'; }
+        else { s << 'F'; }
+        return;
+    case 'Y': s << *(reinterpret_cast<int16_t*>(d)); return;
+    case 'I': s << *(reinterpret_cast<int32_t*>(d)); return;
+    case 'F': s << *(reinterpret_cast<float*>(d)); return;
+    case 'D': s << *(reinterpret_cast<double*>(d)); return;
+    case 'L': s << *(reinterpret_cast<int64_t*>(d)); return;
+    case 'S':
+        // first search to see if it has "\x00\x01" in it -
+        // which separates fields which are reversed in the ascii version.
+        // yeah.
+        // FBX, yeah.
+        for (size_t i = 0; i < data.size(); ++i) {
+            if (data[i] == '\0') {
+                swap = i;
+                break;
+            }
+        }
+    case 'R':
+        s << '"';
+        // we might as well check this now,
+        // probably it will never happen
+        for (size_t i = 0; i < data.size(); ++i) {
+            char c = data[i];
+            if (c == '"') {
+                throw runtime_error("can't handle quotes in property string");
+            }
+        }
+        // first write the SWAPPED member (if any)
+        for (size_t i = swap + 2; i < data.size(); ++i) {
+            char c = data[i];
+            s << c;
+        }
+        // then a separator
+        if (swap != data.size()) {
+            s << "::";
+        }
+        // then the initial member
+        for (size_t i = 0; i < swap; ++i) {
+            char c = data[i];
+            s << c;
+        }
+        s << '"';
+        return;
+    case 'i':
+        N = data.size() / 4; // number of elements
+        s << '*' << N << " {\n";
+        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
+        s << "a: ";
+        for (size_t i = 0; i < N; ++i) {
+            if (i > 0) { s << ','; }
+            if (count++ > 120) { s << '\n'; count = 0; }
+            s << (reinterpret_cast<int32_t*>(d))[i];
+        }
+        s << '\n';
+        for (int i = 0; i < indent; ++i) { s << '\t'; }
+        s << "} ";
+        return;
+    case 'l':
+        N = data.size() / 8;
+        s << '*' << N << " {\n";
+        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
+        s << "a: ";
+        for (size_t i = 0; i < N; ++i) {
+            if (i > 0) { s << ','; }
+            if (count++ > 120) { s << '\n'; count = 0; }
+            s << (reinterpret_cast<int64_t*>(d))[i];
+        }
+        s << '\n';
+        for (int i = 0; i < indent; ++i) { s << '\t'; }
+        s << "} ";
+        return;
+    case 'f':
+        N = data.size() / 4;
+        s << '*' << N << " {\n";
+        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
+        s << "a: ";
+        for (size_t i = 0; i < N; ++i) {
+            if (i > 0) { s << ','; }
+            if (count++ > 120) { s << '\n'; count = 0; }
+            s << (reinterpret_cast<float*>(d))[i];
+        }
+        s << '\n';
+        for (int i = 0; i < indent; ++i) { s << '\t'; }
+        s << "} ";
+        return;
+    case 'd':
+        N = data.size() / 8;
+        s << '*' << N << " {\n";
+        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
+        s << "a: ";
+        // set precision to something that can handle doubles
+        s.precision(15);
+        for (size_t i = 0; i < N; ++i) {
+            if (i > 0) { s << ','; }
+            if (count++ > 120) { s << '\n'; count = 0; }
+            s << (reinterpret_cast<double*>(d))[i];
+        }
+        s << '\n';
+        for (int i = 0; i < indent; ++i) { s << '\t'; }
+        s << "} ";
+        return;
+    default:
+        std::ostringstream err;
+        err << "Tried to dump property with invalid type '";
+        err << type << "'!";
+        throw runtime_error(err.str());
+    }
+}
+
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
 #endif // ASSIMP_BUILD_NO_EXPORT

code/FBXExportProperty.h

@@ -53,6 +53,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <string>
 #include <vector>
+#include <ostream>
 #include <type_traits> // is_void
 
 namespace FBX {
@@ -113,7 +114,10 @@ public:
     size_t size();
 
     // write this property node as binary data to the given stream
-    void Dump(Assimp::StreamWriterLE &s);
+    void DumpBinary(Assimp::StreamWriterLE &s);
+    void DumpAscii(Assimp::StreamWriterLE &s, int indent=0);
+    void DumpAscii(std::ostream &s, int indent=0);
+    // note: make sure the ostream is in classic "C" locale
 
 private:
     char type;

code/FBXExporter.cpp

@@ -66,7 +66,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <vector>
 #include <array>
 #include <unordered_set>
-#include <iostream> // endl
 
 // RESOURCES:
 // https://code.blender.org/2013/08/fbx-binary-file-format-specification/
@@ -89,6 +88,8 @@ namespace FBX {
         "\xfa\xbc\xab\x09\xd0\xc8\xd4\x66\xb1\x76\xfb\x83\x1c\xf7\x26\x7e";
     const std::string FOOT_MAGIC =
         "\xf8\x5a\x8c\x6a\xde\xf5\xd9\x7e\xec\xe9\x0c\xe3\x75\x8f\x29\x0b";
+    const std::string COMMENT_UNDERLINE =
+        ";------------------------------------------------------------------";
 }
 
 using namespace Assimp;
@@ -115,7 +116,7 @@ namespace Assimp {
     // ---------------------------------------------------------------------
     // Worker function for exporting a scene to ASCII FBX.
     // Prototyped and registered in Exporter.cpp
-    /*void ExportSceneFBXA (
+    void ExportSceneFBXA (
         const char* pFile,
         IOSystem* pIOSystem,
         const aiScene* pScene,
@@ -126,7 +127,7 @@ namespace Assimp {
 
         // perform ascii export
         exporter.ExportAscii(pFile, pIOSystem);
-    }*/ // TODO
+    }
 
 } // end of namespace Assimp
 
@@ -194,27 +195,43 @@ void FBXExporter::ExportAscii (
         );
     }
 
-    // this isn't really necessary,
-    // but the Autodesk FBX SDK puts a similar comment at the top of the file.
-    // Theirs declares that the file copyright is owned by Autodesk...
-    std::stringstream head;
-    using std::endl;
-    head << "; FBX " << EXPORT_VERSION_STR << " project file" << endl;
-    head << "; Created by the Open Asset Import Library (Assimp)" << endl;
-    head << "; http://assimp.org" << endl;
-    head << "; -------------------------------------------------" << endl;
-    head << endl;
-    const std::string ascii_header = head.str();
-    outfile->Write(ascii_header.c_str(), ascii_header.size(), 1);
+    // write the ascii header
+    WriteAsciiHeader();
 
     // write all the sections
     WriteAllNodes();
 
+    // make sure the file ends with a newline.
+    // note: if the file is opened in text mode,
+    // this should do the right cross-platform thing.
+    outfile->Write("\n", 1, 1);
+
     // explicitly release file pointer,
     // so we don't have to rely on class destruction.
     outfile.reset();
 }
 
+void FBXExporter::WriteAsciiHeader()
+{
+    // basically just a comment at the top of the file
+    std::stringstream head;
+    head << "; FBX " << EXPORT_VERSION_STR << " project file\n";
+    head << "; Created by the Open Asset Import Library (Assimp)\n";
+    head << "; http://assimp.org\n";
+    head << "; -------------------------------------------------\n";
+    const std::string ascii_header = head.str();
+    outfile->Write(ascii_header.c_str(), ascii_header.size(), 1);
+}
+
+void FBXExporter::WriteAsciiSectionHeader(const std::string& title)
+{
+    StreamWriterLE outstream(outfile);
+    std::stringstream s;
+    s << "\n\n; " << title << '\n';
+    s << FBX::COMMENT_UNDERLINE << "\n";
+    outstream.PutString(s.str());
+}
+
 void FBXExporter::WriteBinaryHeader()
 {
     // first a specific sequence of 23 bytes, always the same
@@ -294,28 +311,39 @@ void FBXExporter::WriteAllNodes ()
 //FBXHeaderExtension top-level node
 void FBXExporter::WriteHeaderExtension ()
 {
+    if (!binary) {
+        // no title, follows directly from the top comment
+    }
     FBX::Node n("FBXHeaderExtension");
     StreamWriterLE outstream(outfile);
+    int indent = 0;
 
     // begin node
-    n.Begin(outstream);
+    n.Begin(outstream, binary, indent);
 
     // write properties
     // (none)
 
     // finish properties
-    n.EndProperties(outstream, 0);
+    n.EndProperties(outstream, binary, indent, 0);
+
+    // begin children
+    n.BeginChildren(outstream, binary, indent);
+
+    indent = 1;
 
     // write child nodes
     FBX::Node::WritePropertyNode(
-        "FBXHeaderVersion", int32_t(1003), outstream
+        "FBXHeaderVersion", int32_t(1003), outstream, binary, indent
     );
     FBX::Node::WritePropertyNode(
-        "FBXVersion", int32_t(EXPORT_VERSION_INT), outstream
-    );
-    FBX::Node::WritePropertyNode(
-        "EncryptionType", int32_t(0), outstream
+        "FBXVersion", int32_t(EXPORT_VERSION_INT), outstream, binary, indent
     );
+    if (binary) {
+        FBX::Node::WritePropertyNode(
+            "EncryptionType", int32_t(0), outstream, binary, indent
+        );
+    }
 
     FBX::Node CreationTimeStamp("CreationTimeStamp");
     time_t rawtime;
@@ -329,36 +357,50 @@ void FBXExporter::WriteHeaderExtension ()
     CreationTimeStamp.AddChild("Minute", int32_t(now->tm_min));
     CreationTimeStamp.AddChild("Second", int32_t(now->tm_sec));
     CreationTimeStamp.AddChild("Millisecond", int32_t(0));
-    CreationTimeStamp.Dump(outstream);
+    CreationTimeStamp.Dump(outstream, binary, indent);
 
     std::stringstream creator;
     creator << "Open Asset Import Library (Assimp) " << aiGetVersionMajor()
             << "." << aiGetVersionMinor() << "." << aiGetVersionRevision();
-    FBX::Node::WritePropertyNode("Creator", creator.str(), outstream);
+    FBX::Node::WritePropertyNode(
+        "Creator", creator.str(), outstream, binary, indent
+    );
 
-    FBX::Node sceneinfo("SceneInfo");
+    //FBX::Node sceneinfo("SceneInfo");
     //sceneinfo.AddProperty("GlobalInfo" + FBX::SEPARATOR + "SceneInfo");
     // not sure if any of this is actually needed,
     // so just write an empty node for now.
-    sceneinfo.Dump(outstream);
+    //sceneinfo.Dump(outstream, binary, indent);
+
+    indent = 0;
 
     // finish node
-    n.End(outstream, true);
+    n.End(outstream, binary, indent, true);
 
     // that's it for FBXHeaderExtension...
+    if (!binary) { return; }
 
     // but binary files also need top-level FileID, CreationTime, Creator:
     std::vector<uint8_t> raw(GENERIC_FILEID.size());
     for (size_t i = 0; i < GENERIC_FILEID.size(); ++i) {
         raw[i] = uint8_t(GENERIC_FILEID[i]);
     }
-    FBX::Node::WritePropertyNode("FileId", raw, outstream);
-    FBX::Node::WritePropertyNode("CreationTime", GENERIC_CTIME, outstream);
-    FBX::Node::WritePropertyNode("Creator", creator.str(), outstream);
+    FBX::Node::WritePropertyNode(
+        "FileId", raw, outstream, binary, indent
+    );
+    FBX::Node::WritePropertyNode(
+        "CreationTime", GENERIC_CTIME, outstream, binary, indent
+    );
+    FBX::Node::WritePropertyNode(
+        "Creator", creator.str(), outstream, binary, indent
+    );
 }
 
 void FBXExporter::WriteGlobalSettings ()
 {
+    if (!binary) {
+        // no title, follows directly from the header extension
+    }
     FBX::Node gs("GlobalSettings");
     gs.AddChild("Version", int32_t(1000));
 
@@ -385,11 +427,15 @@ void FBXExporter::WriteGlobalSettings ()
     p.AddP70int("CurrentTimeMarker", -1);
     gs.AddChild(p);
 
-    gs.Dump(outfile);
+    gs.Dump(outfile, binary, 0);
 }
 
 void FBXExporter::WriteDocuments ()
 {
+    if (!binary) {
+        WriteAsciiSectionHeader("Documents Description");
+    }
+    
     // not sure what the use of multiple documents would be,
     // or whether any end-application supports it
     FBX::Node docs("Documents");
@@ -411,15 +457,19 @@ void FBXExporter::WriteDocuments ()
     doc.AddChild("RootNode", int64_t(0));
 
     docs.AddChild(doc);
-    docs.Dump(outfile);
+    docs.Dump(outfile, binary, 0);
 }
 
 void FBXExporter::WriteReferences ()
 {
+    if (!binary) {
+        WriteAsciiSectionHeader("Document References");
+    }
     // always empty for now.
     // not really sure what this is for.
     FBX::Node n("References");
-    n.Dump(outfile);
+    n.force_has_children = true;
+    n.Dump(outfile, binary, 0);
 }
 
 
@@ -468,9 +518,6 @@ size_t count_images(const aiScene* scene) {
             }
         }
     }
-    //for (auto &s : images) {
-    //    std::cout << "found image: " << s << std::endl;
-    //}
     return images.size();
 }
 
@@ -510,6 +557,11 @@ void FBXExporter::WriteDefinitions ()
     // determining how many of each type of object there are
     // and specifying the base properties to use when otherwise unspecified.
 
+    // ascii section header
+    if (!binary) {
+        WriteAsciiSectionHeader("Object definitions");
+    }
+
     // we need to count the objects
     int32_t count;
     int32_t total_count = 0;
@@ -520,7 +572,7 @@ void FBXExporter::WriteDefinitions ()
 
     // GlobalSettings
     // this seems to always be here in Maya exports
-    n = FBX::Node("ObjectType", Property("GlobalSettings"));
+    n = FBX::Node("ObjectType", "GlobalSettings");
     count = 1;
     n.AddChild("Count", count);
     object_nodes.push_back(n);
@@ -531,9 +583,9 @@ void FBXExporter::WriteDefinitions ()
     // but no harm seems to come of leaving it out.
     count = mScene->mNumAnimations;
     if (count) {
-        n = FBX::Node("ObjectType", Property("AnimationStack"));
+        n = FBX::Node("ObjectType", "AnimationStack");
         n.AddChild("Count", count);
-        pt = FBX::Node("PropertyTemplate", Property("FbxAnimStack"));
+        pt = FBX::Node("PropertyTemplate", "FbxAnimStack");
         p = FBX::Node("Properties70");
         p.AddP70string("Description", "");
         p.AddP70time("LocalStart", 0);
@@ -553,9 +605,9 @@ void FBXExporter::WriteDefinitions ()
     // so there will be one per aiAnimation
     count = mScene->mNumAnimations;
     if (count) {
-        n = FBX::Node("ObjectType", Property("AnimationLayer"));
+        n = FBX::Node("ObjectType", "AnimationLayer");
         n.AddChild("Count", count);
-        pt = FBX::Node("PropertyTemplate", Property("FBXAnimLayer"));
+        pt = FBX::Node("PropertyTemplate", "FBXAnimLayer");
         p = FBX::Node("Properties70");
         p.AddP70("Weight", "Number", "", "A", double(100));
         p.AddP70bool("Mute", 0);
@@ -583,9 +635,9 @@ void FBXExporter::WriteDefinitions ()
     count = 1; // TODO: select properly
     if (count) {
         // FbxSkeleton
-        n = FBX::Node("ObjectType", Property("NodeAttribute"));
+        n = FBX::Node("ObjectType", "NodeAttribute");
         n.AddChild("Count", count);
-        pt = FBX::Node("PropertyTemplate", Property("FbxSkeleton"));
+        pt = FBX::Node("PropertyTemplate", "FbxSkeleton");
         p = FBX::Node("Properties70");
         p.AddP70color("Color", 0.8, 0.8, 0.8);
         p.AddP70double("Size", 33.333333333333);
@@ -601,9 +653,9 @@ void FBXExporter::WriteDefinitions ()
     // <~~ node heirarchy
     count = int32_t(count_nodes(mScene->mRootNode)) - 1; // (not counting root node)
     if (count) {
-        n = FBX::Node("ObjectType", Property("Model"));
+        n = FBX::Node("ObjectType", "Model");
         n.AddChild("Count", count);
-        pt = FBX::Node("PropertyTemplate", Property("FbxNode"));
+        pt = FBX::Node("PropertyTemplate", "FbxNode");
         p = FBX::Node("Properties70");
         p.AddP70enum("QuaternionInterpolate", 0);
         p.AddP70vector("RotationOffset", 0.0, 0.0, 0.0);
@@ -698,9 +750,9 @@ void FBXExporter::WriteDefinitions ()
     // <~~ aiMesh
     count = mScene->mNumMeshes;
     if (count) {
-        n = FBX::Node("ObjectType", Property("Geometry"));
+        n = FBX::Node("ObjectType", "Geometry");
         n.AddChild("Count", count);
-        pt = FBX::Node("PropertyTemplate", Property("FbxMesh"));
+        pt = FBX::Node("PropertyTemplate", "FbxMesh");
         p = FBX::Node("Properties70");
         p.AddP70color("Color", 0, 0, 0);
         p.AddP70vector("BBoxMin", 0, 0, 0);
@@ -724,7 +776,7 @@ void FBXExporter::WriteDefinitions ()
     count = mScene->mNumMaterials;
     if (count) {
         bool has_phong = has_phong_mat(mScene);
-        n = FBX::Node("ObjectType", Property("Material"));
+        n = FBX::Node("ObjectType", "Material");
         n.AddChild("Count", count);
         pt = FBX::Node("PropertyTemplate");
         if (has_phong) {
@@ -771,9 +823,9 @@ void FBXExporter::WriteDefinitions ()
     // one for each image file.
     count = int32_t(count_images(mScene));
     if (count) {
-        n = FBX::Node("ObjectType", Property("Video"));
+        n = FBX::Node("ObjectType", "Video");
         n.AddChild("Count", count);
-        pt = FBX::Node("PropertyTemplate", Property("FbxVideo"));
+        pt = FBX::Node("PropertyTemplate", "FbxVideo");
         p = FBX::Node("Properties70");
         p.AddP70bool("ImageSequence", 0);
         p.AddP70int("ImageSequenceOffset", 0);
@@ -800,9 +852,9 @@ void FBXExporter::WriteDefinitions ()
     // <~~ aiTexture
     count = int32_t(count_textures(mScene));
     if (count) {
-        n = FBX::Node("ObjectType", Property("Texture"));
+        n = FBX::Node("ObjectType", "Texture");
         n.AddChild("Count", count);
-        pt = FBX::Node("PropertyTemplate", Property("FbxFileTexture"));
+        pt = FBX::Node("PropertyTemplate", "FbxFileTexture");
         p = FBX::Node("Properties70");
         p.AddP70enum("TextureTypeUse", 0);
         p.AddP70numberA("Texture alpha", 1.0);
@@ -829,9 +881,9 @@ void FBXExporter::WriteDefinitions ()
     // AnimationCurveNode / FbxAnimCurveNode
     count = mScene->mNumAnimations * 3;
     if (count) {
-        n = FBX::Node("ObjectType", Property("AnimationCurveNode"));
+        n = FBX::Node("ObjectType", "AnimationCurveNode");
         n.AddChild("Count", count);
-        pt = FBX::Node("PropertyTemplate", Property("FbxAnimCurveNode"));
+        pt = FBX::Node("PropertyTemplate", "FbxAnimCurveNode");
         p = FBX::Node("Properties70");
         p.AddP70("d", "Compound", "", "");
         pt.AddChild(p);
@@ -843,7 +895,7 @@ void FBXExporter::WriteDefinitions ()
     // AnimationCurve / FbxAnimCurve
     count = mScene->mNumAnimations * 9;
     if (count) {
-        n = FBX::Node("ObjectType", Property("AnimationCurve"));
+        n = FBX::Node("ObjectType", "AnimationCurve");
         n.AddChild("Count", count);
         object_nodes.push_back(n);
         total_count += count;
@@ -856,7 +908,7 @@ void FBXExporter::WriteDefinitions ()
         if (mesh->HasBones()) { ++count; }
     }
     if (count) {
-        n = FBX::Node("ObjectType", Property("Pose"));
+        n = FBX::Node("ObjectType", "Pose");
         n.AddChild("Count", count);
         object_nodes.push_back(n);
         total_count += count;
@@ -865,7 +917,7 @@ void FBXExporter::WriteDefinitions ()
     // Deformer
     count = int32_t(count_deformers(mScene));
     if (count) {
-        n = FBX::Node("ObjectType", Property("Deformer"));
+        n = FBX::Node("ObjectType", "Deformer");
         n.AddChild("Count", count);
         object_nodes.push_back(n);
         total_count += count;
@@ -874,9 +926,9 @@ void FBXExporter::WriteDefinitions ()
     // (template)
     count = 0;
     if (count) {
-        n = FBX::Node("ObjectType", Property(""));
+        n = FBX::Node("ObjectType", "");
         n.AddChild("Count", count);
-        pt = FBX::Node("PropertyTemplate", Property(""));
+        pt = FBX::Node("PropertyTemplate", "");
         p = FBX::Node("Properties70");
         pt.AddChild(p);
         n.AddChild(pt);
@@ -889,7 +941,7 @@ void FBXExporter::WriteDefinitions ()
     defs.AddChild("Version", int32_t(100));
     defs.AddChild("Count", int32_t(total_count));
     for (auto &n : object_nodes) { defs.AddChild(n); }
-    defs.Dump(outfile);
+    defs.Dump(outfile, binary, 0);
 }
 
 
@@ -935,14 +987,20 @@ int64_t to_ktime(double ticks, const aiAnimation* anim) {
 
 void FBXExporter::WriteObjects ()
 {
+    if (!binary) {
+        WriteAsciiSectionHeader("Object properties");
+    }
     // numbers should match those given in definitions! make sure to check
     StreamWriterLE outstream(outfile);
     FBX::Node object_node("Objects");
-    object_node.Begin(outstream);
-    object_node.EndProperties(outstream);
+    int indent = 0;
+    object_node.Begin(outstream, binary, indent);
+    object_node.EndProperties(outstream, binary, indent);
+    object_node.BeginChildren(outstream, binary, indent);
 
     // geometry (aiMesh)
     mesh_uids.clear();
+    indent = 1;
     for (size_t mi = 0; mi < mScene->mNumMeshes; ++mi) {
         // it's all about this mesh
         aiMesh* m = mScene->mMeshes[mi];
@@ -954,9 +1012,11 @@ void FBXExporter::WriteObjects ()
         n.AddProperty(uid);
         n.AddProperty(FBX::SEPARATOR + "Geometry");
         n.AddProperty("Mesh");
-        n.Begin(outstream);
-        n.DumpProperties(outstream);
-        n.EndProperties(outstream);
+        n.Begin(outstream, binary, indent);
+        n.DumpProperties(outstream, binary, indent);
+        n.EndProperties(outstream, binary, indent);
+        n.BeginChildren(outstream, binary, indent);
+        indent = 2;
 
         // output vertex data - each vertex should be unique (probably)
         std::vector<double> flattened_vertices;
@@ -980,7 +1040,7 @@ void FBXExporter::WriteObjects ()
             }
         }
         FBX::Node::WritePropertyNode(
-            "Vertices", flattened_vertices, outstream
+            "Vertices", flattened_vertices, outstream, binary, indent
         );
 
         // output polygon data as a flattened array of vertex indices.
@@ -996,30 +1056,38 @@ void FBXExporter::WriteObjects ()
             );
         }
         FBX::Node::WritePropertyNode(
-            "PolygonVertexIndex", polygon_data, outstream
+            "PolygonVertexIndex", polygon_data, outstream, binary, indent
         );
 
         // here could be edges but they're insane.
         // it's optional anyway, so let's ignore it.
 
         FBX::Node::WritePropertyNode(
-            "GeometryVersion", int32_t(124), outstream
+            "GeometryVersion", int32_t(124), outstream, binary, indent
         );
 
         // normals, if any
         if (m->HasNormals()) {
-            FBX::Node normals("LayerElementNormal", Property(int32_t(0)));
-            normals.Begin(outstream);
-            normals.DumpProperties(outstream);
-            normals.EndProperties(outstream);
-            FBX::Node::WritePropertyNode("Version", int32_t(101), outstream);
-            FBX::Node::WritePropertyNode("Name", "", outstream);
+            FBX::Node normals("LayerElementNormal", int32_t(0));
+            normals.Begin(outstream, binary, indent);
+            normals.DumpProperties(outstream, binary, indent);
+            normals.EndProperties(outstream, binary, indent);
+            normals.BeginChildren(outstream, binary, indent);
+            indent = 3;
             FBX::Node::WritePropertyNode(
-                "MappingInformationType", "ByPolygonVertex", outstream
+                "Version", int32_t(101), outstream, binary, indent
+            );
+            FBX::Node::WritePropertyNode(
+                "Name", "", outstream, binary, indent
+            );
+            FBX::Node::WritePropertyNode(
+                "MappingInformationType", "ByPolygonVertex",
+                outstream, binary, indent
             );
             // TODO: vertex-normals or indexed normals when appropriate
             FBX::Node::WritePropertyNode(
-                "ReferenceInformationType", "Direct", outstream
+                "ReferenceInformationType", "Direct",
+                outstream, binary, indent
             );
             std::vector<double> normal_data;
             normal_data.reserve(3 * polygon_data.size());
@@ -1032,10 +1100,13 @@ void FBXExporter::WriteObjects ()
                     normal_data.push_back(n.z);
                 }
             }
-            FBX::Node::WritePropertyNode("Normals", normal_data, outstream);
+            FBX::Node::WritePropertyNode(
+                "Normals", normal_data, outstream, binary, indent
+            );
             // note: version 102 has a NormalsW also... not sure what it is,
             // so we can stick with version 101 for now.
-            normals.End(outstream, true);
+            indent = 2;
+            normals.End(outstream, binary, indent, true);
         }
 
         // uvs, if any
@@ -1055,19 +1126,27 @@ void FBXExporter::WriteObjects ()
                 err << " but may be incorrectly interpreted on load.";
                 DefaultLogger::get()->warn(err.str());
             }
-            FBX::Node uv("LayerElementUV", Property(int32_t(uvi)));
-            uv.Begin(outstream);
-            uv.DumpProperties(outstream);
-            uv.EndProperties(outstream);
-            FBX::Node::WritePropertyNode("Version", int32_t(101), outstream);
+            FBX::Node uv("LayerElementUV", int32_t(uvi));
+            uv.Begin(outstream, binary, indent);
+            uv.DumpProperties(outstream, binary, indent);
+            uv.EndProperties(outstream, binary, indent);
+            uv.BeginChildren(outstream, binary, indent);
+            indent = 3;
+            FBX::Node::WritePropertyNode(
+                "Version", int32_t(101), outstream, binary, indent
+            );
             // it doesn't seem like assimp keeps the uv map name,
             // so just leave it blank.
-            FBX::Node::WritePropertyNode("Name", "", outstream);
             FBX::Node::WritePropertyNode(
-                "MappingInformationType", "ByPolygonVertex", outstream
+                "Name", "", outstream, binary, indent
+            );
+            FBX::Node::WritePropertyNode(
+                "MappingInformationType", "ByPolygonVertex",
+                outstream, binary, indent
             );
             FBX::Node::WritePropertyNode(
-                "ReferenceInformationType", "IndexToDirect", outstream
+                "ReferenceInformationType", "IndexToDirect",
+                outstream, binary, indent
             );
 
             std::vector<double> uv_data;
@@ -1092,27 +1171,32 @@ void FBXExporter::WriteObjects ()
                     }
                 }
             }
-            FBX::Node::WritePropertyNode("UV", uv_data, outstream);
-            FBX::Node::WritePropertyNode("UVIndex", uv_indices, outstream);
-            uv.End(outstream, true);
+            FBX::Node::WritePropertyNode(
+                "UV", uv_data, outstream, binary, indent
+            );
+            FBX::Node::WritePropertyNode(
+                "UVIndex", uv_indices, outstream, binary, indent
+            );
+            indent = 2;
+            uv.End(outstream, binary, indent, true);
         }
 
         // i'm not really sure why this material section exists,
         // as the material is linked via "Connections".
         // it seems to always have the same "0" value.
-        FBX::Node mat("LayerElementMaterial", Property(int32_t(0)));
+        FBX::Node mat("LayerElementMaterial", int32_t(0));
         mat.AddChild("Version", int32_t(101));
         mat.AddChild("Name", "");
         mat.AddChild("MappingInformationType", "AllSame");
         mat.AddChild("ReferenceInformationType", "IndexToDirect");
         std::vector<int32_t> mat_indices = {0};
         mat.AddChild("Materials", mat_indices);
-        mat.Dump(outstream);
+        mat.Dump(outstream, binary, indent);
 
         // finally we have the layer specifications,
         // which select the normals / UV set / etc to use.
         // TODO: handle multiple uv sets correctly?
-        FBX::Node layer("Layer", Property(int32_t(0)));
+        FBX::Node layer("Layer", int32_t(0));
         layer.AddChild("Version", int32_t(100));
         FBX::Node le("LayerElement");
         le.AddChild("Type", "LayerElementNormal");
@@ -1126,10 +1210,11 @@ void FBXExporter::WriteObjects ()
         le.AddChild("Type", "LayerElementUV");
         le.AddChild("TypedIndex", int32_t(0));
         layer.AddChild(le);
-        layer.Dump(outstream);
+        layer.Dump(outstream, binary, indent);
 
         // finish the node record
-        n.End(outstream, true);
+        indent = 1;
+        n.End(outstream, binary, indent, true);
     }
 
     // aiMaterial
@@ -1273,7 +1358,7 @@ void FBXExporter::WriteObjects ()
 
         n.AddChild(p);
 
-        n.Dump(outstream);
+        n.Dump(outstream, binary, indent);
     }
 
     // we need to look up all the images we're using,
@@ -1321,7 +1406,7 @@ void FBXExporter::WriteObjects ()
         n.AddChild("UseMipMap", int32_t(0));
         n.AddChild("Filename", path);
         n.AddChild("RelativeFilename", path);
-        n.Dump(outstream);
+        n.Dump(outstream, binary, indent);
     }
 
     // Textures
@@ -1408,14 +1493,12 @@ void FBXExporter::WriteObjects ()
             const int64_t texture_uid = generate_uid();
 
             // link the texture to the material
-            FBX::Node c("C");
-            c.AddProperties("OP", texture_uid, material_uid, prop_name);
-            connections.push_back(c);
+            connections.emplace_back(
+                "C", "OP", texture_uid, material_uid, prop_name
+            );
 
             // link the image data to the texture
-            c = FBX::Node("C");
-            c.AddProperties("OO", image_uid, texture_uid);
-            connections.push_back(c);
+            connections.emplace_back("C", "OO", image_uid, texture_uid);
 
             // now write the actual texture node
             FBX::Node tnode("Texture");
@@ -1438,11 +1521,11 @@ void FBXExporter::WriteObjects ()
             tnode.AddChild("RelativeFilename", texture_path);
             tnode.AddChild("ModelUVTranslation", double(0.0), double(0.0));
             tnode.AddChild("ModelUVScaling", double(1.0), double(1.0));
-            tnode.AddChild("Texture_Alpha_Soutce", "None");
+            tnode.AddChild("Texture_Alpha_Source", "None");
             tnode.AddChild(
                 "Cropping", int32_t(0), int32_t(0), int32_t(0), int32_t(0)
             );
-            tnode.Dump(outstream);
+            tnode.Dump(outstream, binary, indent);
         }
     }
 
@@ -1595,12 +1678,10 @@ void FBXExporter::WriteObjects ()
         // "acuracy"... this is not a typo....
         dnode.AddChild("Link_DeformAcuracy", double(50));
         dnode.AddChild("SkinningType", "Linear"); // TODO: other modes?
-        dnode.Dump(outstream);
+        dnode.Dump(outstream, binary, indent);
 
         // connect it
-        FBX::Node c("C");
-        c.AddProperties("OO", deformer_uid, mesh_uids[mi]);
-        connections.push_back(c); // TODO: emplace_back
+        connections.emplace_back("C", "OO", deformer_uid, mesh_uids[mi]);
 
         // we will be indexing by vertex...
         // but there might be a different number of "vertices"
@@ -1703,7 +1784,7 @@ void FBXExporter::WriteObjects ()
 
             // this should be the same as the bone's mOffsetMatrix.
             // if it's not the same, the skeleton isn't in the bind pose.
-            const float epsilon = 1e-5f; // some error is to be expected
+            const float epsilon = 1e-4f; // some error is to be expected
             bool bone_xform_okay = true;
             if (b && ! tr.Equal(b->mOffsetMatrix, epsilon)) {
                 not_in_bind_pose.insert(b);
@@ -1741,17 +1822,17 @@ void FBXExporter::WriteObjects ()
             // there's not really any way around this at the moment.
 
             // done
-            sdnode.Dump(outstream);
+            sdnode.Dump(outstream, binary, indent);
 
             // lastly, connect to the parent deformer
-            c = FBX::Node("C");
-            c.AddProperties("OO", subdeformer_uid, deformer_uid);
-            connections.push_back(c); // TODO: emplace_back
+            connections.emplace_back(
+                "C", "OO", subdeformer_uid, deformer_uid
+            );
 
             // we also need to connect the limb node to the subdeformer.
-            c = FBX::Node("C");
-            c.AddProperties("OO", node_uids[bone_node], subdeformer_uid);
-            connections.push_back(c); // TODO: emplace_back
+            connections.emplace_back(
+                "C", "OO", node_uids[bone_node], subdeformer_uid
+            );
         }
 
         // if we cannot create a valid FBX file, simply die.
@@ -1859,7 +1940,7 @@ void FBXExporter::WriteObjects ()
         }
 
         // now write it
-        bpnode.Dump(outstream);
+        bpnode.Dump(outstream, binary, indent);
     }*/
 
     // TODO: cameras, lights
@@ -1918,11 +1999,8 @@ void FBXExporter::WriteObjects ()
 
         // this node absurdly always pretends it has children
         // (in this case it does, but just in case...)
-        asnode.Begin(outstream);
-        asnode.DumpProperties(outstream);
-        asnode.EndProperties(outstream);
-        asnode.DumpChildren(outstream);
-        asnode.End(outstream, true);
+        asnode.force_has_children = true;
+        asnode.Dump(outstream, binary, indent);
 
         // note: animation stacks are not connected to anything
     }
@@ -1936,16 +2014,13 @@ void FBXExporter::WriteObjects ()
         alnode.AddProperties(animlayer_uid, FBX::SEPARATOR + "AnimLayer", "");
 
         // this node absurdly always pretends it has children
-        alnode.Begin(outstream);
-        alnode.DumpProperties(outstream);
-        alnode.EndProperties(outstream);
-        alnode.DumpChildren(outstream);
-        alnode.End(outstream, true);
+        alnode.force_has_children = true;
+        alnode.Dump(outstream, binary, indent);
 
         // connect to the relevant animstack
-        FBX::Node c("C");
-        c.AddProperties("OO", animlayer_uid, animation_stack_uids[ai]);
-        connections.push_back(c); // TODO: emplace_back
+        connections.emplace_back(
+            "C", "OO", animlayer_uid, animation_stack_uids[ai]
+        );
     }
 
     // AnimCurveNode - three per aiNodeAnim
@@ -2057,7 +2132,8 @@ void FBXExporter::WriteObjects ()
         }
     }
 
-    object_node.End(outstream, true);
+    indent = 0;
+    object_node.End(outstream, binary, indent, true);
 }
 
 // convenience map of magic node name strings to FBX properties,
@@ -2083,13 +2159,14 @@ const std::map<std::string,std::pair<std::string,char>> transform_types = {
 };
 
 // write a single model node to the stream
-void WriteModelNode(
+void FBXExporter::WriteModelNode(
     StreamWriterLE& outstream,
+    bool binary,
     const aiNode* node,
     int64_t node_uid,
     const std::string& type,
     const std::vector<std::pair<std::string,aiVector3D>>& transform_chain,
-    TransformInheritance inherit_type=TransformInheritance_RSrs
+    TransformInheritance inherit_type
 ){
     const aiVector3D zero = {0, 0, 0};
     const aiVector3D one = {1, 1, 1};
@@ -2157,7 +2234,7 @@ void WriteModelNode(
     m.AddChild("Shading", Property(true));
     m.AddChild("Culling", Property("CullingOff"));
 
-    m.Dump(outstream);
+    m.Dump(outstream, binary, 1);
 }
 
 // wrapper for WriteModelNodes to create and pass a blank transform chain
@@ -2181,15 +2258,6 @@ void FBXExporter::WriteModelNodes(
     // first collapse any expanded transformation chains created by FBX import.
     std::string node_name(node->mName.C_Str());
     if (node_name.find(MAGIC_NODE_TAG) != std::string::npos) {
-        if (node->mNumChildren != 1) {
-            // this should never happen
-            std::stringstream err;
-            err << "FBX transformation node should have exactly 1 child,";
-            err << " but " << node->mNumChildren << " found";
-            err << " on node \"" << node_name << "\"!";
-            throw DeadlyExportError(err.str());
-        }
-        aiNode* next_node = node->mChildren[0];
         auto pos = node_name.find(MAGIC_NODE_TAG) + MAGIC_NODE_TAG.size() + 1;
         std::string type_name = node_name.substr(pos);
         auto elem = transform_types.find(type_name);
@@ -2223,10 +2291,16 @@ void FBXExporter::WriteModelNodes(
             err << elem->second.second;
             throw DeadlyExportError(err.str());
         }
-        // now just continue to the next node
-        WriteModelNodes(
-            outstream, next_node, parent_uid, limbnodes, transform_chain
-        );
+        // now continue on to any child nodes
+        for (unsigned i = 0; i < node->mNumChildren; ++i) {
+            WriteModelNodes(
+                outstream,
+                node->mChildren[i],
+                parent_uid,
+                limbnodes,
+                transform_chain
+            );
+        }
         return;
     }
 
@@ -2240,9 +2314,7 @@ void FBXExporter::WriteModelNodes(
             node_uid = generate_uid();
             node_uids[node] = node_uid;
         }
-        FBX::Node c("C");
-        c.AddProperties("OO", node_uid, parent_uid);
-        connections.push_back(c);
+        connections.emplace_back("C", "OO", node_uid, parent_uid);
     }
 
     // what type of node is this?
@@ -2250,21 +2322,23 @@ void FBXExporter::WriteModelNodes(
         // handled later
     } else if (node->mNumMeshes == 1) {
         // connect to child mesh, which should have been written previously
-        FBX::Node c("C");
-        c.AddProperties("OO", mesh_uids[node->mMeshes[0]], node_uid);
-        connections.push_back(c);
+        connections.emplace_back(
+            "C", "OO", mesh_uids[node->mMeshes[0]], node_uid
+        );
         // also connect to the material for the child mesh
-        c = FBX::Node("C");
-        c.AddProperties(
-            "OO",
+        connections.emplace_back(
+            "C", "OO",
             material_uids[mScene->mMeshes[node->mMeshes[0]]->mMaterialIndex],
             node_uid
         );
-        connections.push_back(c);
         // write model node
-        WriteModelNode(outstream, node, node_uid, "Mesh", transform_chain);
+        WriteModelNode(
+            outstream, binary, node, node_uid, "Mesh", transform_chain
+        );
     } else if (limbnodes.count(node)) {
-        WriteModelNode(outstream, node, node_uid, "LimbNode", transform_chain);
+        WriteModelNode(
+            outstream, binary, node, node_uid, "LimbNode", transform_chain
+        );
         // we also need to write a nodeattribute to mark it as a skeleton
         int64_t node_attribute_uid = generate_uid();
         FBX::Node na("NodeAttribute");
@@ -2272,14 +2346,14 @@ void FBXExporter::WriteModelNodes(
             node_attribute_uid, FBX::SEPARATOR + "NodeAttribute", "LimbNode"
         );
         na.AddChild("TypeFlags", Property("Skeleton"));
-        na.Dump(outstream);
+        na.Dump(outstream, binary, 1);
         // and connect them
-        FBX::Node c("C");
-        c.AddProperties("OO", node_attribute_uid, node_uid);
-        connections.push_back(c);
+        connections.emplace_back("C", "OO", node_attribute_uid, node_uid);
     } else {
         // generate a null node so we can add children to it
-        WriteModelNode(outstream, node, node_uid, "Null", transform_chain);
+        WriteModelNode(
+            outstream, binary, node, node_uid, "Null", transform_chain
+        );
     }
 
     // if more than one child mesh, make nodes for each mesh
@@ -2288,23 +2362,19 @@ void FBXExporter::WriteModelNodes(
             // make a new model node
             int64_t new_node_uid = generate_uid();
             // connect to parent node
-            FBX::Node c("C");
-            c.AddProperties("OO", new_node_uid, node_uid);
-            connections.push_back(c);
+            connections.emplace_back("C", "OO", new_node_uid, node_uid);
             // connect to child mesh, which should have been written previously
-            c = FBX::Node("C");
-            c.AddProperties("OO", mesh_uids[node->mMeshes[i]], new_node_uid);
-            connections.push_back(c);
+            connections.emplace_back(
+                "C", "OO", mesh_uids[node->mMeshes[i]], new_node_uid
+            );
             // also connect to the material for the child mesh
-            c = FBX::Node("C");
-            c.AddProperties(
-                "OO",
+            connections.emplace_back(
+                "C", "OO",
                 material_uids[
                     mScene->mMeshes[node->mMeshes[i]]->mMaterialIndex
                 ],
                 new_node_uid
             );
-            connections.push_back(c);
             // write model node
             FBX::Node m("Model");
             // take name from mesh name, if it exists
@@ -2315,7 +2385,7 @@ void FBXExporter::WriteModelNodes(
             FBX::Node p("Properties70");
             p.AddP70enum("InheritType", 1);
             m.AddChild(p);
-            m.Dump(outstream);
+            m.Dump(outstream, binary, 1);
         }
     }
 
@@ -2344,15 +2414,11 @@ void FBXExporter::WriteAnimationCurveNode(
     p.AddP70numberA("d|Y", default_value.y);
     p.AddP70numberA("d|Z", default_value.z);
     n.AddChild(p);
-    n.Dump(outstream);
+    n.Dump(outstream, binary, 1);
     // connect to layer
-    FBX::Node cl("C");
-    cl.AddProperties("OO", uid, layer_uid);
-    this->connections.push_back(cl); // TODO: emplace_back
+    this->connections.emplace_back("C", "OO", uid, layer_uid);
     // connect to bone
-    FBX::Node cb("C");
-    cb.AddProperties("OP", uid, node_uid, property_name);
-    this->connections.push_back(cb); // TODO: emplace_back
+    this->connections.emplace_back("C", "OP", uid, node_uid, property_name);
 }
 
 
@@ -2379,10 +2445,10 @@ void FBXExporter::WriteAnimationCurve(
         "KeyAttrRefCount",
         std::vector<int32_t>{static_cast<int32_t>(times.size())}
     );
-    n.Dump(outstream);
-    FBX::Node c("C");
-    c.AddProperties("OP", curve_uid, curvenode_uid, property_link);
-    this->connections.push_back(c); // TODO: emplace_back
+    n.Dump(outstream, binary, 1);
+    this->connections.emplace_back(
+        "C", "OP", curve_uid, curvenode_uid, property_link
+    );
 }
 
 
@@ -2390,13 +2456,18 @@ void FBXExporter::WriteConnections ()
 {
     // we should have completed the connection graph already,
     // so basically just dump it here
+    if (!binary) {
+        WriteAsciiSectionHeader("Object connections");
+    }
+    // TODO: comments with names in the ascii version
     FBX::Node conn("Connections");
     StreamWriterLE outstream(outfile);
-    conn.Begin(outstream);
+    conn.Begin(outstream, binary, 0);
+    conn.BeginChildren(outstream, binary, 0);
     for (auto &n : connections) {
-        n.Dump(outstream);
+        n.Dump(outstream, binary, 1);
     }
-    conn.End(outstream, !connections.empty());
+    conn.End(outstream, binary, 0, !connections.empty());
     connections.clear();
 }
 

code/FBXExporter.h

@@ -48,6 +48,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
 
 #include "FBXExportNode.h" // FBX::Node
+#include "FBXCommon.h" // FBX::TransformInheritance
 
 #include <assimp/types.h>
 //#include <assimp/material.h>
@@ -104,6 +105,9 @@ namespace Assimp
         void WriteBinaryHeader();
         void WriteBinaryFooter();
 
+        // ascii files have a comment at the top
+        void WriteAsciiHeader();
+
         // WriteAllNodes does the actual export.
         // It just calls all the Write<Section> methods below in order.
         void WriteAllNodes();
@@ -126,6 +130,7 @@ namespace Assimp
         // WriteTakes(); // deprecated since at least 2015 (fbx 7.4)
 
         // helpers
+        void WriteAsciiSectionHeader(const std::string& title);
         void WriteModelNodes(
             Assimp::StreamWriterLE& s,
             const aiNode* node,
@@ -139,6 +144,15 @@ namespace Assimp
             const std::unordered_set<const aiNode*>& limbnodes,
             std::vector<std::pair<std::string,aiVector3D>>& transform_chain
         );
+        void WriteModelNode( // nor this
+            StreamWriterLE& s,
+            bool binary,
+            const aiNode* node,
+            int64_t node_uid,
+            const std::string& type,
+            const std::vector<std::pair<std::string,aiVector3D>>& xfm_chain,
+            FBX::TransformInheritance ti_type=FBX::TransformInheritance_RSrs
+        );
         void WriteAnimationCurveNode(
             StreamWriterLE& outstream,
             int64_t uid,

code/glTF2Exporter.cpp

@@ -316,11 +316,9 @@ void glTF2Exporter::GetMatTex(const aiMaterial* mat, Ref<Texture>& texture, aiTe
             std::string path = tex.C_Str();
 
             if (path.size() > 0) {
-                if (path[0] != '*') {
-                    std::map<std::string, unsigned int>::iterator it = mTexturesByPath.find(path);
-                    if (it != mTexturesByPath.end()) {
-                        texture = mAsset->textures.Get(it->second);
-                    }
+                std::map<std::string, unsigned int>::iterator it = mTexturesByPath.find(path);
+                if (it != mTexturesByPath.end()) {
+                    texture = mAsset->textures.Get(it->second);
                 }
 
                 if (!texture) {

include/assimp/StreamWriter.h

@@ -203,6 +203,12 @@ public:
         Put(n);
     }
 
+    // ---------------------------------------------------------------------
+    /** Write a single character to the stream */
+    void PutChar(char c)    {
+        Put(c);
+    }
+
     // ---------------------------------------------------------------------
     /** Write an aiString to the stream */
     void PutString(const aiString& s)