introduce simple skin-test +some findings.

code/FBXConverter.cpp

@@ -1151,7 +1151,7 @@ namespace Assimp {
                     }
                 }
             }
-            size_t numAnimMeshes = animMeshes.size();
+            const size_t numAnimMeshes = animMeshes.size();
             if (numAnimMeshes > 0) {
                 out_mesh->mNumAnimMeshes = static_cast<unsigned int>(numAnimMeshes);
                 out_mesh->mAnimMeshes = new aiAnimMesh*[numAnimMeshes];

code/FBXDocument.cpp

@@ -69,8 +69,7 @@ LazyObject::LazyObject(uint64_t id, const Element& element, const Document& doc)
 : doc(doc)
 , element(element)
 , id(id)
-, flags()
+, flags() {
-{
     // empty
 }
 
@@ -84,7 +83,7 @@ LazyObject::~LazyObject()
 const Object* LazyObject::Get(bool dieOnError)
 {
     if(IsBeingConstructed() || FailedToConstruct()) {
-        return NULL;
+        return nullptr;
     }
 
     if (object.get()) {
@@ -553,7 +552,7 @@ const std::vector<const AnimationStack*>& Document::AnimationStacks() const
 LazyObject* Document::GetObject(uint64_t id) const
 {
     ObjectMap::const_iterator it = objects.find(id);
-    return it == objects.end() ? NULL : (*it).second;
+    return it == objects.end() ? nullptr : (*it).second;
 }
 
 #define MAX_CLASSNAMES 6
@@ -610,7 +609,7 @@ std::vector<const Connection*> Document::GetConnectionsSequenced(uint64_t id, bo
         for (size_t i = 0; i < c; ++i) {
             ai_assert(classnames[i]);
             if(static_cast<size_t>(std::distance(key.begin(),key.end())) == lengths[i] && !strncmp(classnames[i],obtype,lengths[i])) {
-                obtype = NULL;
+                obtype = nullptr;
                 break;
             }
         }

code/FBXDocument.h

@@ -85,13 +85,11 @@ class Cluster;
 /** Represents a delay-parsed FBX objects. Many objects in the scene
  *  are not needed by assimp, so it makes no sense to parse them
  *  upfront. */
-class LazyObject
+class LazyObject {
-{
 public:
     LazyObject(uint64_t id, const Element& element, const Document& doc);
-    ~LazyObject();
 
-public:
+    ~LazyObject();
 
     const Object* Get(bool dieOnError = false);
 
@@ -136,11 +134,8 @@ private:
     unsigned int flags;
 };
 
-
-
 /** Base class for in-memory (DOM) representations of FBX objects */
-class Object
+class Object {
-{
 public:
     Object(uint64_t id, const Element& element, const std::string& name);
 
@@ -164,14 +159,12 @@ protected:
     const uint64_t id;
 };
 
-
-
 /** DOM class for generic FBX NoteAttribute blocks. NoteAttribute's just hold a property table,
  *  fixed members are added by deriving classes. */
-class NodeAttribute : public Object
+class NodeAttribute : public Object {
-{
 public:
     NodeAttribute(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
     virtual ~NodeAttribute();
 
     const PropertyTable& Props() const {
@@ -183,12 +176,11 @@ private:
     std::shared_ptr<const PropertyTable> props;
 };
 
-
 /** DOM base class for FBX camera settings attached to a node */
-class CameraSwitcher : public NodeAttribute
+class CameraSwitcher : public NodeAttribute {
-{
 public:
     CameraSwitcher(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
     virtual ~CameraSwitcher();
 
     int CameraID() const {
@@ -209,7 +201,6 @@ private:
     std::string cameraIndexName;
 };
 
-
 #define fbx_stringize(a) #a
 
 #define fbx_simple_property(name, type, default_value) \
@@ -230,13 +221,12 @@ private:
 
 
 /** DOM base class for FBX cameras attached to a node */
-class Camera : public NodeAttribute
+class Camera : public NodeAttribute {
-{
 public:
     Camera(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
     virtual  ~Camera();
 
-public:
     fbx_simple_property(Position, aiVector3D, aiVector3D(0,0,0))
     fbx_simple_property(UpVector, aiVector3D, aiVector3D(0,1,0))
     fbx_simple_property(InterestPosition, aiVector3D, aiVector3D(0,0,0))
@@ -256,33 +246,26 @@ public:
     fbx_simple_property(FocalLength, float, 1.0f)
 };
 
-
 /** DOM base class for FBX null markers attached to a node */
-class Null : public NodeAttribute
+class Null : public NodeAttribute {
-{
 public:
     Null(uint64_t id, const Element& element, const Document& doc, const std::string& name);
     virtual ~Null();
 };
 
-
 /** DOM base class for FBX limb node markers attached to a node */
-class LimbNode : public NodeAttribute
+class LimbNode : public NodeAttribute {
-{
 public:
     LimbNode(uint64_t id, const Element& element, const Document& doc, const std::string& name);
     virtual ~LimbNode();
 };
 
-
 /** DOM base class for FBX lights attached to a node */
-class Light : public NodeAttribute
+class Light : public NodeAttribute {
-{
 public:
     Light(uint64_t id, const Element& element, const Document& doc, const std::string& name);
     virtual ~Light();
 
-public:
     enum Type
     {
         Type_Point,
@@ -304,7 +287,6 @@ public:
         Decay_MAX // end-of-enum sentinel
     };
 
-public:
     fbx_simple_property(Color, aiVector3D, aiVector3D(1,1,1))
     fbx_simple_enum_property(LightType, Type, 0)
     fbx_simple_property(CastLightOnObject, bool, false)
@@ -338,10 +320,8 @@ public:
     fbx_simple_property(EnableBarnDoor, bool, true)
 };
 
-
 /** DOM base class for FBX models (even though its semantics are more "node" than "model" */
-class Model : public Object
+class Model : public Object {
-{
 public:
     enum RotOrder {
         RotOrder_EulerXYZ = 0,
@@ -356,7 +336,6 @@ public:
         RotOrder_MAX // end-of-enum sentinel
     };
 
-
     enum TransformInheritance {
         TransformInheritance_RrSs = 0,
         TransformInheritance_RSrs,
@@ -490,13 +469,12 @@ private:
 };
 
 /** DOM class for generic FBX textures */
-class Texture : public Object
+class Texture : public Object {
-{
 public:
     Texture(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
     virtual ~Texture();
 
-public:
     const std::string& Type() const {
         return type;
     }
@@ -551,8 +529,7 @@ private:
 };
 
 /** DOM class for layered FBX textures */
-class LayeredTexture : public Object
+class LayeredTexture : public Object {
-{
 public:
     LayeredTexture(uint64_t id, const Element& element, const Document& doc, const std::string& name);
     virtual ~LayeredTexture();
@@ -560,8 +537,7 @@ public:
     // Can only be called after construction of the layered texture object due to construction flag.
     void fillTexture(const Document& doc);
 
-    enum BlendMode
+    enum BlendMode {
-    {
         BlendMode_Translucent,
         BlendMode_Additive,
         BlendMode_Modulate,
@@ -623,13 +599,12 @@ typedef std::fbx_unordered_map<std::string, const LayeredTexture*> LayeredTextur
 
 
 /** DOM class for generic FBX videos */
-class Video : public Object
+class Video : public Object {
-{
 public:
     Video(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
     virtual ~Video();
 
-public:
     const std::string& Type() const {
         return type;
     }
@@ -673,10 +648,10 @@ private:
 };
 
 /** DOM class for generic FBX materials */
-class Material : public Object
+class Material : public Object {
-{
 public:
     Material(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
     virtual ~Material();
 
     const std::string& GetShadingModel() const {
@@ -713,8 +688,7 @@ typedef std::vector<int64_t> KeyTimeList;
 typedef std::vector<float> KeyValueList;
 
 /** Represents a FBX animation curve (i.e. a 1-dimensional set of keyframes and values therefor) */
-class AnimationCurve : public Object
+class AnimationCurve : public Object {
-{
 public:
     AnimationCurve(uint64_t id, const Element& element, const std::string& name, const Document& doc);
     virtual ~AnimationCurve();
@@ -725,14 +699,12 @@ public:
         return keys;
     }
 
-
     /** get list of keyframe values.
       * Invariant: |GetKeys()| == |GetValues()| && |GetKeys()| > 0*/
     const KeyValueList& GetValues() const {
         return values;
     }
 
-
     const std::vector<float>& GetAttributes() const {
         return attributes;
     }
@@ -751,10 +723,8 @@ private:
 // property-name -> animation curve
 typedef std::map<std::string, const AnimationCurve*> AnimationCurveMap;
 
-
 /** Represents a FBX animation curve (i.e. a mapping from single animation curves to nodes) */
-class AnimationCurveNode : public Object
+class AnimationCurveNode : public Object {
-{
 public:
     /* the optional white list specifies a list of property names for which the caller
     wants animations for. If the curve node does not match one of these, std::range_error
@@ -804,8 +774,7 @@ private:
 typedef std::vector<const AnimationCurveNode*> AnimationCurveNodeList;
 
 /** Represents a FBX animation layer (i.e. a list of node animations) */
-class AnimationLayer : public Object
+class AnimationLayer : public Object {
-{
 public:
     AnimationLayer(uint64_t id, const Element& element, const std::string& name, const Document& doc);
     virtual ~AnimationLayer();
@@ -818,7 +787,7 @@ public:
     /* the optional white list specifies a list of property names for which the caller
     wants animations for. Curves not matching this list will not be added to the
     animation layer. */
-    AnimationCurveNodeList Nodes(const char* const * target_prop_whitelist = NULL, size_t whitelist_size = 0) const;
+    AnimationCurveNodeList Nodes(const char* const * target_prop_whitelist = nullptr, size_t whitelist_size = 0) const;
 
 private:
     std::shared_ptr<const PropertyTable> props;
@@ -828,8 +797,7 @@ private:
 typedef std::vector<const AnimationLayer*> AnimationLayerList;
 
 /** Represents a FBX animation stack (i.e. a list of animation layers) */
-class AnimationStack : public Object
+class AnimationStack : public Object {
-{
 public:
     AnimationStack(uint64_t id, const Element& element, const std::string& name, const Document& doc);
     virtual ~AnimationStack();
@@ -855,8 +823,7 @@ private:
 
 
 /** DOM class for deformers */
-class Deformer : public Object
+class Deformer : public Object {
-{
 public:
     Deformer(uint64_t id, const Element& element, const Document& doc, const std::string& name);
     virtual ~Deformer();
@@ -875,10 +842,10 @@ typedef std::vector<unsigned int> WeightIndexArray;
 
 
 /** DOM class for BlendShapeChannel deformers */
-class BlendShapeChannel : public Deformer
+class BlendShapeChannel : public Deformer {
-{
 public:
     BlendShapeChannel(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
     virtual ~BlendShapeChannel();
 
     float DeformPercent() const {
@@ -892,6 +859,7 @@ public:
     const std::vector<const ShapeGeometry*>& GetShapeGeometries() const {
         return shapeGeometries;
     }
+
 private:
     float percent;
     WeightArray fullWeights;
@@ -899,10 +867,10 @@ private:
 };
 
 /** DOM class for BlendShape deformers */
-class BlendShape : public Deformer
+class BlendShape : public Deformer {
-{
 public:
     BlendShape(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
     virtual ~BlendShape();
 
     const std::vector<const BlendShapeChannel*>& BlendShapeChannels() const {
@@ -913,11 +881,11 @@ private:
     std::vector<const BlendShapeChannel*> blendShapeChannels;
 };
 
-/** DOM class for skin deformer clusters (aka subdeformers) */
+/** DOM class for skin deformer clusters (aka sub-deformers) */
-class Cluster : public Deformer
+class Cluster : public Deformer {
-{
 public:
     Cluster(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
     virtual ~Cluster();
 
     /** get the list of deformer weights associated with this cluster.
@@ -958,10 +926,10 @@ private:
 };
 
 /** DOM class for skin deformers */
-class Skin : public Deformer
+class Skin : public Deformer {
-{
 public:
     Skin(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
     virtual ~Skin();
 
     float DeformAccuracy() const {
@@ -978,10 +946,10 @@ private:
 };
 
 /** Represents a link between two FBX objects. */
-class Connection
+class Connection {
-{
 public:
     Connection(uint64_t insertionOrder,  uint64_t src, uint64_t dest, const std::string& prop, const Document& doc);
+
     ~Connection();
 
     // note: a connection ensures that the source and dest objects exist, but
@@ -1006,7 +974,7 @@ public:
     }
 
     int CompareTo(const Connection* c) const {
-        ai_assert( NULL != c );
+        ai_assert( nullptr != c );
 
         // note: can't subtract because this would overflow uint64_t
         if(InsertionOrder() > c->InsertionOrder()) {
@@ -1019,7 +987,7 @@ public:
     }
 
     bool Compare(const Connection* c) const {
-        ai_assert( NULL != c );
+        ai_assert( nullptr != c );
 
         return InsertionOrder() < c->InsertionOrder();
     }
@@ -1047,6 +1015,7 @@ typedef std::multimap<uint64_t, const Connection*> ConnectionMap;
 class FileGlobalSettings {
 public:
     FileGlobalSettings(const Document& doc, std::shared_ptr<const PropertyTable> props);
+
     ~FileGlobalSettings();
 
     const PropertyTable& Props() const {
@@ -1103,10 +1072,10 @@ private:
 };
 
 /** DOM root for a FBX file */
-class Document
+class Document {
-{
 public:
     Document(const Parser& parser, const ImportSettings& settings);
+
     ~Document();
 
     LazyObject* GetObject(uint64_t id) const;

code/FBXDocumentUtil.h

@@ -56,7 +56,6 @@ namespace Assimp {
 namespace FBX {
 namespace Util {
 
-
 /* DOM/Parse error reporting - does not return */
 AI_WONT_RETURN void DOMError(const std::string& message, const Token& token) AI_WONT_RETURN_SUFFIX;
 AI_WONT_RETURN void DOMError(const std::string& message, const Element* element = NULL) AI_WONT_RETURN_SUFFIX;
@@ -73,28 +72,28 @@ std::shared_ptr<const PropertyTable> GetPropertyTable(const Document& doc,
     const Scope& sc,
     bool no_warn = false);
 
-
 // ------------------------------------------------------------------------------------------------
 template <typename T>
-inline const T* ProcessSimpleConnection(const Connection& con,
+inline
+const T* ProcessSimpleConnection(const Connection& con,
     bool is_object_property_conn,
     const char* name,
     const Element& element,
-    const char** propNameOut = NULL)
+    const char** propNameOut = nullptr)
 {
     if (is_object_property_conn && !con.PropertyName().length()) {
         DOMWarning("expected incoming " + std::string(name) +
             " link to be an object-object connection, ignoring",
             &element
             );
-        return NULL;
+        return nullptr;
     }
     else if (!is_object_property_conn && con.PropertyName().length()) {
         DOMWarning("expected incoming " + std::string(name) +
             " link to be an object-property connection, ignoring",
             &element
             );
-        return NULL;
+        return nullptr;
     }
 
     if(is_object_property_conn && propNameOut) {
@@ -108,13 +107,12 @@ inline const T* ProcessSimpleConnection(const Connection& con,
         DOMWarning("failed to read source object for incoming " + std::string(name) +
             " link, ignoring",
             &element);
-        return NULL;
+        return nullptr;
     }
 
     return dynamic_cast<const T*>(ob);
 }
 
-
 } //!Util
 } //!FBX
 } //!Assimp

code/FindInvalidDataProcess.cpp

@@ -282,9 +282,11 @@ void FindInvalidDataProcess::ProcessAnimation (aiAnimation* anim) {
 
 // ------------------------------------------------------------------------------------------------
 void FindInvalidDataProcess::ProcessAnimationChannel (aiNodeAnim* anim) {
-    ai_assert( 0 != anim->mPositionKeys );
+    ai_assert( nullptr != anim );
-    ai_assert( 0 != anim->mRotationKeys );
+    if (anim->mNumPositionKeys == 0 && anim->mNumRotationKeys == 0 && anim->mNumScalingKeys == 0) {
-    ai_assert( 0 != anim->mScalingKeys );
+        ai_assert_entry();
+        return;
+    }
 
     // Check whether all values in a tracks are identical - in this case
     // we can remove al keys except one.

include/assimp/ai_assert.h

@@ -47,8 +47,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifdef ASSIMP_BUILD_DEBUG
 #   include <assert.h>
 #   define ai_assert(expression) assert( expression )
+#   define ai_assert_entry()     assert( false )
 #else
 #   define  ai_assert(expression)
-#endif // 
+#   define  ai_assert_entry() 
+#endif // ASSIMP_BUILD_DEBUG
 
 #endif // AI_ASSERT_H_INC
+

include/assimp/mesh.h

@@ -469,10 +469,10 @@ struct aiAnimMesh
     {
         // fixme consider moving this to the ctor initializer list as well
         for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++){
-            mTextureCoords[a] = NULL;
+            mTextureCoords[a] = nullptr;
         }
         for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; a++) {
-            mColors[a] = NULL;
+            mColors[a] = nullptr;
         }
     }
 
@@ -493,34 +493,34 @@ struct aiAnimMesh
     /** Check whether the anim mesh overrides the vertex positions
      *  of its host mesh*/
     bool HasPositions() const {
-        return mVertices != NULL;
+        return mVertices != nullptr;
     }
 
     /** Check whether the anim mesh overrides the vertex normals
      *  of its host mesh*/
     bool HasNormals() const {
-        return mNormals != NULL;
+        return mNormals != nullptr;
     }
 
     /** Check whether the anim mesh overrides the vertex tangents
      *  and bitangents of its host mesh. As for aiMesh,
      *  tangents and bitangents always go together. */
     bool HasTangentsAndBitangents() const {
-        return mTangents != NULL;
+        return mTangents != nullptr;
     }
 
     /** Check whether the anim mesh overrides a particular
      * set of vertex colors on his host mesh.
      *  @param pIndex 0<index<AI_MAX_NUMBER_OF_COLOR_SETS */
     bool HasVertexColors( unsigned int pIndex) const    {
-        return pIndex >= AI_MAX_NUMBER_OF_COLOR_SETS ? false : mColors[pIndex] != NULL;
+        return pIndex >= AI_MAX_NUMBER_OF_COLOR_SETS ? false : mColors[pIndex] != nullptr;
     }
 
     /** Check whether the anim mesh overrides a particular
      * set of texture coordinates on his host mesh.
      *  @param pIndex 0<index<AI_MAX_NUMBER_OF_TEXTURECOORDS */
     bool HasTextureCoords( unsigned int pIndex) const   {
-        return pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS ? false : mTextureCoords[pIndex] != NULL;
+        return pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS ? false : mTextureCoords[pIndex] != nullptr;
     }
 
 #endif

test/models/PLY/cube_test.ply

@@ -0,0 +1,24 @@
+ply
+format ascii 1.0
+comment Created by Open Asset Import Library - http://assimp.sf.net (v4.1.4208963464)
+element vertex 8
+property float x
+property float y
+property float z
+element face 6
+property list uchar int vertex_index
+end_header
+0 0 0
+0 0 1
+0 1 1
+0 1 0
+1 0 0
+1 0 1
+1 1 1
+1 1 0
+4 0 1 2 3
+4 7 6 5 4
+4 0 4 5 1
+4 1 5 6 2
+4 2 6 7 3
+4 3 7 4 0

test/models/glTF2/simple_skin/simple_skin.gltf

@@ -0,0 +1,148 @@
+{
+  "scenes" : [ {
+    "nodes" : [ 0 ]
+  } ],
+  
+  "nodes" : [ {
+    "skin" : 0,
+    "mesh" : 0,
+    "children" : [ 1 ]
+  }, {
+    "children" : [ 2 ],
+    "translation" : [ 0.0, 1.0, 0.0 ]
+  }, {
+    "rotation" : [ 0.0, 0.0, 0.0, 1.0 ]
+  } ],
+  
+  "meshes" : [ {
+    "primitives" : [ {
+      "attributes" : {
+        "POSITION" : 1,
+        "JOINTS_0" : 2,
+        "WEIGHTS_0" : 3
+      },
+      "indices" : 0
+    } ]
+  } ],
+
+  "skins" : [ {
+    "inverseBindMatrices" : 4,
+    "joints" : [ 1, 2 ]
+  } ],
+  
+  "animations" : [ {
+    "channels" : [ {
+      "sampler" : 0,
+      "target" : {
+        "node" : 2,
+        "path" : "rotation"
+      }
+    } ],
+    "samplers" : [ {
+      "input" : 5,
+      "interpolation" : "LINEAR",
+      "output" : 6
+    } ]
+  } ],
+  
+  "buffers" : [ {
+    "uri" : "data:application/gltf-buffer;base64,AAABAAMAAAADAAIAAgADAAUAAgAFAAQABAAFAAcABAAHAAYABgAHAAkABgAJAAgAAAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAAAAAAAAAAD8AAAAAAACAPwAAAD8AAAAAAAAAAAAAgD8AAAAAAACAPwAAgD8AAAAAAAAAAAAAwD8AAAAAAACAPwAAwD8AAAAAAAAAAAAAAEAAAAAAAACAPwAAAEAAAAAA",
+    "byteLength" : 168
+  }, {
+    "uri" : "data:application/gltf-buffer;base64,AAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAABAPwAAgD4AAAAAAAAAAAAAQD8AAIA+AAAAAAAAAAAAAAA/AAAAPwAAAAAAAAAAAAAAPwAAAD8AAAAAAAAAAAAAgD4AAEA/AAAAAAAAAAAAAIA+AABAPwAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAA=",
+    "byteLength" : 320
+  }, {
+    "uri" : "data:application/gltf-buffer;base64,AACAPwAAAAAAAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAvwAAgL8AAAAAAACAPwAAgD8AAAAAAAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAAAAAAAAAAAAAAIA/AAAAAAAAAL8AAIC/AAAAAAAAgD8=",
+    "byteLength" : 128
+  }, {
+    "uri" : "data:application/gltf-buffer;base64,AAAAAAAAAD8AAIA/AADAPwAAAEAAACBAAABAQAAAYEAAAIBAAACQQAAAoEAAALBAAAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAkxjEPkSLbD8AAAAAAAAAAPT9ND/0/TQ/AAAAAAAAAAD0/TQ/9P00PwAAAAAAAAAAkxjEPkSLbD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAkxjEvkSLbD8AAAAAAAAAAPT9NL/0/TQ/AAAAAAAAAAD0/TS/9P00PwAAAAAAAAAAkxjEvkSLbD8AAAAAAAAAAAAAAAAAAIA/",
+    "byteLength" : 240
+  } ],
+  
+  "bufferViews" : [ {
+    "buffer" : 0,
+    "byteOffset" : 0,
+    "byteLength" : 48,
+    "target" : 34963
+  }, {
+    "buffer" : 0,
+    "byteOffset" : 48,
+    "byteLength" : 120,
+    "target" : 34962
+  }, {
+    "buffer" : 1,
+    "byteOffset" : 0,
+    "byteLength" : 320,
+    "byteStride" : 16
+  }, {
+    "buffer" : 2,
+    "byteOffset" : 0,
+    "byteLength" : 128
+  }, {
+    "buffer" : 3,
+    "byteOffset" : 0,
+    "byteLength" : 240
+  } ],
+
+  "accessors" : [ {
+    "bufferView" : 0,
+    "byteOffset" : 0,
+    "componentType" : 5123,
+    "count" : 24,
+    "type" : "SCALAR",
+    "max" : [ 9 ],
+    "min" : [ 0 ]
+  }, {
+    "bufferView" : 1,
+    "byteOffset" : 0,
+    "componentType" : 5126,
+    "count" : 10,
+    "type" : "VEC3",
+    "max" : [ 1.0, 2.0, 0.0 ],
+    "min" : [ 0.0, 0.0, 0.0 ]
+  }, {
+    "bufferView" : 2,
+    "byteOffset" : 0,
+    "componentType" : 5123,
+    "count" : 10,
+    "type" : "VEC4",
+    "max" : [ 0, 1, 0, 0 ],
+    "min" : [ 0, 1, 0, 0 ]
+  }, {
+    "bufferView" : 2,
+    "byteOffset" : 160,
+    "componentType" : 5126,
+    "count" : 10,
+    "type" : "VEC4",
+    "max" : [ 1.0, 1.0, 0.0, 0.0 ],
+    "min" : [ 0.0, 0.0, 0.0, 0.0 ]
+  }, {
+    "bufferView" : 3,
+    "byteOffset" : 0,
+    "componentType" : 5126,
+    "count" : 2,
+    "type" : "MAT4",
+    "max" : [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, -0.5, -1.0, 0.0, 1.0 ],
+    "min" : [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, -0.5, -1.0, 0.0, 1.0 ]
+  }, {
+    "bufferView" : 4,
+    "byteOffset" : 0,
+    "componentType" : 5126,
+    "count" : 12,
+    "type" : "SCALAR",
+    "max" : [ 5.5 ],
+    "min" : [ 0.0 ]
+  }, {
+    "bufferView" : 4,
+    "byteOffset" : 48,
+    "componentType" : 5126,
+    "count" : 12,
+    "type" : "VEC4",
+    "max" : [ 0.0, 0.0, 0.707, 1.0 ],
+    "min" : [ 0.0, 0.0, -0.707, 0.707 ]
+  } ],
+  
+  "asset" : {
+    "version" : "2.0"
+  }
+}

test/unit/utglTF2ImportExport.cpp

@@ -376,6 +376,11 @@ TEST_F(utglTF2ImportExport, importglTF2FromMemory) {
     EXPECT_EQ( nullptr, Scene );*/
 }
 
+TEST_F( utglTF2ImportExport, bug_import_simple_skin ) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/glTF2/simple_skin/simple_skin.gltf", aiProcess_ValidateDataStructure );
+
+}
 #ifndef ASSIMP_BUILD_NO_EXPORT
 TEST_F( utglTF2ImportExport, exportglTF2FromFileTest ) {
     EXPECT_TRUE( exporterTest() );