Refactoring: Cleanup post-processing steps.

code/AssetLib/3DS/3DSHelper.h

@@ -397,10 +397,6 @@ struct Material {
 
     Material(const Material &other) = default;
 
-    Material(Material &&other) AI_NO_EXCEPT = default;
-
-    Material &operator=(Material &&other) AI_NO_EXCEPT = default;
-
     virtual ~Material() = default;
 
     //! Name of the material

code/AssetLib/X3D/X3DExporter.hpp

@@ -58,8 +58,6 @@ class X3DExporter {
                 Value(value) {
             // empty
         }
-
-        SAttribute(SAttribute &&rhs) AI_NO_EXCEPT = default;
     };
 
     /***********************************************/

code/Geometry/GeometryUtils.cpp

@@ -76,4 +76,17 @@ ai_real GeometryUtils::calculateAreaOfTriangle( const aiFace& face, aiMesh* mesh
     return area;
 }
 
+// ------------------------------------------------------------------------------------------------
+// Check whether a ray intersects a plane and find the intersection point
+bool GeometryUtils::PlaneIntersect(const aiRay& ray, const aiVector3D& planePos, 
+        const aiVector3D& planeNormal, aiVector3D& pos) {
+    const ai_real b = planeNormal * (planePos - ray.pos);
+    ai_real h = ray.dir * planeNormal;
+    if ((h < 10e-5 && h > -10e-5) || (h = b/h) < 0)
+        return false;
+
+    pos = ray.pos + (ray.dir * h);
+    return true;
+}
+
 } // namespace Assimp

code/Geometry/GeometryUtils.h

@@ -62,6 +62,8 @@ public:
     /// @param mesh   The mesh containing the face
     /// @return The area.
     static ai_real calculateAreaOfTriangle( const aiFace& face, aiMesh* mesh );
+
+    static bool PlaneIntersect(const aiRay& ray, const aiVector3D& planePos, const aiVector3D& planeNormal, aiVector3D& pos);
 };
 
 } // namespace Assimp

code/PostProcessing/ArmaturePopulate.cpp

@@ -47,11 +47,15 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 namespace Assimp {
 
-/// The default class constructor.
-ArmaturePopulate::ArmaturePopulate() = default;
+static bool IsBoneNode(const aiString &bone_name, std::vector<aiBone *> &bones) {
+    for (aiBone *bone : bones) {
+        if (bone->mName == bone_name) {
+            return true;
+        }
+    }
 
-/// The class destructor.
-ArmaturePopulate::~ArmaturePopulate() = default;
+    return false;
+}
 
 bool ArmaturePopulate::IsActive(unsigned int pFlags) const {
     return (pFlags & aiProcess_PopulateArmatureData) != 0;
@@ -78,9 +82,8 @@ void ArmaturePopulate::Execute(aiScene *out) {
         aiBone *bone = kvp.first;
         aiNode *bone_node = kvp.second;
         ASSIMP_LOG_VERBOSE_DEBUG("active node lookup: ", bone->mName.C_Str());
+        
         // lcl transform grab - done in generate_nodes :)
-
-        // bone->mOffsetMatrix = bone_node->mTransformation;
         aiNode *armature = GetArmatureRoot(bone_node, bones);
 
         ai_assert(armature);
@@ -212,18 +215,6 @@ aiNode *ArmaturePopulate::GetArmatureRoot(aiNode *bone_node,
     return nullptr;
 }
 
-// Simple IsBoneNode check if this could be a bone
-bool ArmaturePopulate::IsBoneNode(const aiString &bone_name,
-                                  std::vector<aiBone *> &bones) {
-    for (aiBone *bone : bones) {
-        if (bone->mName == bone_name) {
-            return true;
-        }
-    }
-
-    return false;
-}
-
 // Pop this node by name from the stack if found
 // Used in multiple armature situations with duplicate node / bone names
 // Known flaw: cannot have nodes with bone names, will be fixed in later release

code/PostProcessing/ArmaturePopulate.h

@@ -69,10 +69,10 @@ namespace Assimp {
 class ASSIMP_API ArmaturePopulate : public BaseProcess {
 public:
     /// The default class constructor.
-    ArmaturePopulate();
+    ArmaturePopulate() = default;
 
     /// The class destructor.
-    virtual ~ArmaturePopulate();
+    virtual ~ArmaturePopulate() = default;
 
     /// Overwritten, @see BaseProcess
     virtual bool IsActive( unsigned int pFlags ) const;
@@ -86,9 +86,6 @@ public:
     static aiNode *GetArmatureRoot(aiNode *bone_node,
                                       std::vector<aiBone *> &bone_list);
 
-    static bool IsBoneNode(const aiString &bone_name,
-                              std::vector<aiBone *> &bones);
-
     static aiNode *GetNodeFromStack(const aiString &node_name,
                                        std::vector<aiNode *> &nodes);
 
@@ -108,5 +105,4 @@ public:
 
 } // Namespace Assimp
 
-
 #endif // SCALE_PROCESS_H_

code/PostProcessing/ComputeUVMappingProcess.cpp

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2022, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -42,10 +41,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 /** @file GenUVCoords step */
 
-
 #include "ComputeUVMappingProcess.h"
 #include "ProcessHelper.h"
 #include <assimp/Exceptional.h>
+#include "Geometry/GeometryUtils.h"
 
 using namespace Assimp;
 
@@ -59,31 +58,17 @@ namespace {
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the processing step is present in the given flag field.
-bool ComputeUVMappingProcess::IsActive( unsigned int pFlags) const
-{
+bool ComputeUVMappingProcess::IsActive( unsigned int pFlags) const {
     return  (pFlags & aiProcess_GenUVCoords) != 0;
 }
 
-// ------------------------------------------------------------------------------------------------
-// Check whether a ray intersects a plane and find the intersection point
-inline bool PlaneIntersect(const aiRay& ray, const aiVector3D& planePos,
-    const aiVector3D& planeNormal, aiVector3D& pos)
-{
-    const ai_real b = planeNormal * (planePos - ray.pos);
-    ai_real h = ray.dir * planeNormal;
-    if ((h < 10e-5 && h > -10e-5) || (h = b/h) < 0)
-        return false;
-
-    pos = ray.pos + (ray.dir * h);
-    return true;
-}
-
 // ------------------------------------------------------------------------------------------------
 // Find the first empty UV channel in a mesh
-inline unsigned int FindEmptyUVChannel (aiMesh* mesh)
-{
+inline unsigned int FindEmptyUVChannel (aiMesh* mesh) {
     for (unsigned int m = 0; m < AI_MAX_NUMBER_OF_TEXTURECOORDS;++m)
-        if (!mesh->mTextureCoords[m])return m;
+        if (!mesh->mTextureCoords[m]) {
+            return m;
+        }
 
     ASSIMP_LOG_ERROR("Unable to compute UV coordinates, no free UV slot found");
     return UINT_MAX;
@@ -91,8 +76,7 @@ inline unsigned int FindEmptyUVChannel (aiMesh* mesh)
 
 // ------------------------------------------------------------------------------------------------
 // Try to remove UV seams
-void RemoveUVSeams (aiMesh* mesh, aiVector3D* out)
-{
+void RemoveUVSeams (aiMesh* mesh, aiVector3D* out) {
     // TODO: just a very rough algorithm. I think it could be done
     // much easier, but I don't know how and am currently too tired to
     // to think about a better solution.
@@ -103,10 +87,11 @@ void RemoveUVSeams (aiMesh* mesh, aiVector3D* out)
     const static ai_real LOWER_EPSILON = ai_real( 10e-3 );
     const static ai_real UPPER_EPSILON = ai_real( 1.0-10e-3 );
 
-    for (unsigned int fidx = 0; fidx < mesh->mNumFaces;++fidx)
-    {
+    for (unsigned int fidx = 0; fidx < mesh->mNumFaces;++fidx) {
         const aiFace& face = mesh->mFaces[fidx];
-        if (face.mNumIndices < 3) continue; // triangles and polygons only, please
+        if (face.mNumIndices < 3) {
+            continue; // triangles and polygons only, please
+        }
 
         unsigned int smallV = face.mNumIndices, large = smallV;
         bool zero = false, one = false, round_to_zero = false;

code/PostProcessing/ConvertToLHProcess.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2022, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -219,13 +217,6 @@ void MakeLeftHandedProcess::ProcessAnimation(aiNodeAnim *pAnim) {
 
     // rotation keys
     for (unsigned int a = 0; a < pAnim->mNumRotationKeys; a++) {
-        /* That's the safe version, but the float errors add up. So we try the short version instead
-        aiMatrix3x3 rotmat = pAnim->mRotationKeys[a].mValue.GetMatrix();
-        rotmat.a3 = -rotmat.a3; rotmat.b3 = -rotmat.b3;
-        rotmat.c1 = -rotmat.c1; rotmat.c2 = -rotmat.c2;
-        aiQuaternion rotquat( rotmat);
-        pAnim->mRotationKeys[a].mValue = rotquat;
-        */
         pAnim->mRotationKeys[a].mValue.x *= -1.0f;
         pAnim->mRotationKeys[a].mValue.y *= -1.0f;
     }

code/PostProcessing/DeboneProcess.cpp

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2022, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -87,7 +86,7 @@ void DeboneProcess::Execute( aiScene* pScene) {
     if(!!mNumBonesCanDoWithout && (!mAllOrNone||mNumBonesCanDoWithout==mNumBones))  {
         for(unsigned int a = 0; a < pScene->mNumMeshes; a++)    {
             if(splitList[a]) {
-                numSplits++;
+                ++numSplits;
             }
         }
     }
@@ -119,8 +118,8 @@ void DeboneProcess::Execute( aiScene* pScene) {
                     aiNode *theNode = find ? pScene->mRootNode->FindNode(*find) : nullptr;
                     std::pair<unsigned int,aiNode*> push_pair(static_cast<unsigned int>(meshes.size()),theNode);
 
-                    mSubMeshIndices[a].push_back(push_pair);
-                    meshes.push_back(newMeshes[b].first);
+                    mSubMeshIndices[a].emplace_back(push_pair);
+                    meshes.emplace_back(newMeshes[b].first);
 
                     out+=newMeshes[b].first->mNumBones;
                 }
@@ -360,9 +359,7 @@ void DeboneProcess::UpdateNode(aiNode* pNode) const {
     unsigned int m = static_cast<unsigned int>(pNode->mNumMeshes), n = static_cast<unsigned int>(mSubMeshIndices.size());
 
     // first pass, look for meshes which have not moved
-
     for(unsigned int a=0;a<m;a++)   {
-
         unsigned int srcIndex = pNode->mMeshes[a];
         const std::vector< std::pair< unsigned int,aiNode* > > &subMeshes = mSubMeshIndices[srcIndex];
         unsigned int nSubmeshes = static_cast<unsigned int>(subMeshes.size());
@@ -376,8 +373,7 @@ void DeboneProcess::UpdateNode(aiNode* pNode) const {
 
     // second pass, collect deboned meshes
 
-    for(unsigned int a=0;a<n;a++)
-    {
+    for(unsigned int a=0;a<n;a++) {
         const std::vector< std::pair< unsigned int,aiNode* > > &subMeshes = mSubMeshIndices[a];
         unsigned int nSubmeshes = static_cast<unsigned int>(subMeshes.size());
 

code/PostProcessing/FindDegenerates.cpp

@@ -236,8 +236,7 @@ evil_jump_outside:
                     face_src.mNumIndices = 0;
                     face_src.mIndices = nullptr;
                 }
-            }
-            else {
+            } else {
                 // Otherwise delete it if we don't need this face
                 delete[] face_src.mIndices;
                 face_src.mIndices = nullptr;

code/PostProcessing/RemoveVCProcess.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2022, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -74,63 +72,6 @@ inline void ArrayDelete(T **&in, unsigned int &num) {
     num = 0;
 }
 
-#if 0
-// ------------------------------------------------------------------------------------------------
-// Updates the node graph - removes all nodes which have the "remove" flag set and the
-// "don't remove" flag not set. Nodes with meshes are never deleted.
-bool UpdateNodeGraph(aiNode* node,std::list<aiNode*>& childsOfParent,bool root)
-{
-    bool b = false;
-
-    std::list<aiNode*> mine;
-    for (unsigned int i = 0; i < node->mNumChildren;++i)
-    {
-        if(UpdateNodeGraph(node->mChildren[i],mine,false))
-            b = true;
-    }
-
-    // somewhat tricky ... mNumMeshes must be originally 0 and MSB2 may not be set,
-    // so we can do a simple comparison against MSB here
-    if (!root && AI_RC_UINT_MSB == node->mNumMeshes )
-    {
-        // this node needs to be removed
-        if(node->mNumChildren)
-        {
-            childsOfParent.insert(childsOfParent.end(),mine.begin(),mine.end());
-
-            // set all children to nullptr to make sure they are not deleted when we delete ourself
-            for (unsigned int i = 0; i < node->mNumChildren;++i)
-                node->mChildren[i] = nullptr;
-        }
-        b = true;
-        delete node;
-    }
-    else
-    {
-        AI_RC_UNMASK(node->mNumMeshes);
-        childsOfParent.push_back(node);
-
-        if (b)
-        {
-            // reallocate the array of our children here
-            node->mNumChildren = (unsigned int)mine.size();
-            aiNode** const children = new aiNode*[mine.size()];
-            aiNode** ptr = children;
-
-            for (std::list<aiNode*>::iterator it = mine.begin(), end = mine.end();
-                 it != end; ++it)
-            {
-                *ptr++ = *it;
-            }
-            delete[] node->mChildren;
-            node->mChildren = children;
-            return false;
-        }
-    }
-    return b;
-}
-#endif
-
 // ------------------------------------------------------------------------------------------------
 // Executes the post processing step on the given imported data.
 void RemoveVCProcess::Execute(aiScene *pScene) {

code/PostProcessing/ScaleProcess.cpp

@@ -86,9 +86,9 @@ void ScaleProcess::Execute( aiScene* pScene ) {
         return; // nothing to scale
     }
 
-    ai_assert( mScale != 0 );
-    ai_assert( nullptr != pScene );
-    ai_assert( nullptr != pScene->mRootNode );
+    ai_assert(mScale != 0 );
+    ai_assert(nullptr != pScene );
+    ai_assert(nullptr != pScene->mRootNode );
 
     if ( nullptr == pScene ) {
         return;
@@ -140,7 +140,7 @@ void ScaleProcess::Execute( aiScene* pScene ) {
             aiMatrix4x4 scaling;
             aiMatrix4x4::Scaling( aiVector3D(scale), scaling );
 
-            aiMatrix4x4 RotMatrix = aiMatrix4x4 (rotation.GetMatrix());
+            const aiMatrix4x4 RotMatrix = aiMatrix4x4(rotation.GetMatrix());
 
             bone->mOffsetMatrix = translation * RotMatrix * scaling;
         }

code/PostProcessing/SortByPTypeProcess.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2022, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -54,10 +52,7 @@ using namespace Assimp;
 
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
-SortByPTypeProcess::SortByPTypeProcess() :
-        mConfigRemoveMeshes(0) {
-    // empty
-}
+SortByPTypeProcess::SortByPTypeProcess() : mConfigRemoveMeshes(0) {}
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the processing step is present in the given flag field.
@@ -155,7 +150,7 @@ void SortByPTypeProcess::Execute(aiScene *pScene) {
         if (1 == num) {
             if (!(mConfigRemoveMeshes & mesh->mPrimitiveTypes)) {
                 *meshIdx = static_cast<unsigned int>(outMeshes.size());
-                outMeshes.push_back(mesh);
+                outMeshes.emplace_back(mesh);
             } else {
                 delete mesh;
                 pScene->mMeshes[i] = nullptr;
@@ -311,21 +306,23 @@ void SortByPTypeProcess::Execute(aiScene *pScene) {
 
                     if (vert) {
                         *vert++ = mesh->mVertices[idx];
-                        //mesh->mVertices[idx].x = get_qnan();
                     }
-                    if (nor) *nor++ = mesh->mNormals[idx];
+                    if (nor) 
+                        *nor++ = mesh->mNormals[idx];
                     if (tan) {
                         *tan++ = mesh->mTangents[idx];
                         *bit++ = mesh->mBitangents[idx];
                     }
 
                     for (unsigned int pp = 0; pp < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++pp) {
-                        if (!uv[pp]) break;
+                        if (!uv[pp]) 
+                            break;
                         *uv[pp]++ = mesh->mTextureCoords[pp][idx];
                     }
 
                     for (unsigned int pp = 0; pp < AI_MAX_NUMBER_OF_COLOR_SETS; ++pp) {
-                        if (!cols[pp]) break;
+                        if (!cols[pp]) 
+                            break;
                         *cols[pp]++ = mesh->mColors[pp][idx];
                     }
 
@@ -351,7 +348,7 @@ void SortByPTypeProcess::Execute(aiScene *pScene) {
                         }
                     }
                     if (pp == mesh->mNumAnimMeshes)
-                        amIdx++;
+                        ++amIdx;
 
                     in.mIndices[q] = outIdx++;
                 }

code/PostProcessing/SplitByBoneCountProcess.cpp

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2022, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -166,7 +165,7 @@ void SplitByBoneCountProcess::SplitMesh( const aiMesh* pMesh, std::vector<aiMesh
         unsigned int numBones = 0;
         std::vector<bool> isBoneUsed( pMesh->mNumBones, false);
         // indices of the faces which are going to go into this submesh
-        std::vector<unsigned int> subMeshFaces;
+        IndexArray subMeshFaces;
         subMeshFaces.reserve( pMesh->mNumFaces);
         // accumulated vertex count of all the faces in this submesh
         unsigned int numSubMeshVertices = 0;
@@ -202,7 +201,7 @@ void SplitByBoneCountProcess::SplitMesh( const aiMesh* pMesh, std::vector<aiMesh
             for (std::set<unsigned int>::iterator it = newBonesAtCurrentFace.begin(); it != newBonesAtCurrentFace.end(); ++it) {
                 if (!isBoneUsed[*it]) {
                     isBoneUsed[*it] = true;
-                    numBones++;
+                    ++numBones;
                 }
             }
 
@@ -212,18 +211,17 @@ void SplitByBoneCountProcess::SplitMesh( const aiMesh* pMesh, std::vector<aiMesh
 
             // remember that this face is handled
             isFaceHandled[a] = true;
-            numFacesHandled++;
+            ++numFacesHandled;
         }
 
         // create a new mesh to hold this subset of the source mesh
         aiMesh* newMesh = new aiMesh;
-        if( pMesh->mName.length > 0 )
-        {
+        if( pMesh->mName.length > 0 ) {
             newMesh->mName.Set( format() << pMesh->mName.data << "_sub" << poNewMeshes.size());
         }
         newMesh->mMaterialIndex = pMesh->mMaterialIndex;
         newMesh->mPrimitiveTypes = pMesh->mPrimitiveTypes;
-        poNewMeshes.push_back( newMesh);
+        poNewMeshes.emplace_back( newMesh);
 
         // create all the arrays for this mesh if the old mesh contained them
         newMesh->mNumVertices = numSubMeshVertices;
@@ -251,7 +249,7 @@ void SplitByBoneCountProcess::SplitMesh( const aiMesh* pMesh, std::vector<aiMesh
         // and copy over the data, generating faces with linear indices along the way
         newMesh->mFaces = new aiFace[subMeshFaces.size()];
         unsigned int nvi = 0; // next vertex index
-        std::vector<unsigned int> previousVertexIndices( numSubMeshVertices, std::numeric_limits<unsigned int>::max()); // per new vertex: its index in the source mesh
+        IndexArray previousVertexIndices( numSubMeshVertices, std::numeric_limits<unsigned int>::max()); // per new vertex: its index in the source mesh
         for( unsigned int a = 0; a < subMeshFaces.size(); ++a ) {
             const aiFace& srcFace = pMesh->mFaces[subMeshFaces[a]];
             aiFace& dstFace = newMesh->mFaces[a];
@@ -399,10 +397,10 @@ void SplitByBoneCountProcess::SplitMesh( const aiMesh* pMesh, std::vector<aiMesh
 void SplitByBoneCountProcess::UpdateNode( aiNode* pNode) const {
     // rebuild the node's mesh index list
     if( pNode->mNumMeshes == 0 ) {
-        std::vector<unsigned int> newMeshList;
+        IndexArray newMeshList;
         for( unsigned int a = 0; a < pNode->mNumMeshes; ++a) {
             unsigned int srcIndex = pNode->mMeshes[a];
-            const std::vector<unsigned int>& replaceMeshes = mSubMeshIndices[srcIndex];
+            const IndexArray& replaceMeshes = mSubMeshIndices[srcIndex];
             newMeshList.insert( newMeshList.end(), replaceMeshes.begin(), replaceMeshes.end());
         }
 

code/PostProcessing/SplitByBoneCountProcess.h

@@ -76,6 +76,10 @@ public:
     /// basing on the Importer's configuration property list.
     virtual void SetupProperties(const Importer* pImp) override;
 
+    /// @brief Will return the maximal number of bones.
+    /// @return The maximal number of bones.
+    size_t getMaxNumberOfBones() const;
+
 protected:
     /// Executes the post processing step on the given imported data.
     /// At the moment a process is not supposed to fail.
@@ -90,14 +94,19 @@ protected:
     /// Recursively updates the node's mesh list to account for the changed mesh list
     void UpdateNode( aiNode* pNode) const;
 
-public:
+private:
     /// Max bone count. Splitting occurs if a mesh has more than that number of bones.
     size_t mMaxBoneCount;
 
     /// Per mesh index: Array of indices of the new submeshes.
-    std::vector< std::vector<unsigned int> > mSubMeshIndices;
+    using IndexArray = std::vector<unsigned int>;
+    std::vector<IndexArray> mSubMeshIndices;
 };
 
+inline size_t SplitByBoneCountProcess::getMaxNumberOfBones() const {
+    return mMaxBoneCount;
+}
+
 } // end of namespace Assimp
 
 #endif // !!AI_SPLITBYBONECOUNTPROCESS_H_INC

include/assimp/Vertex.h

@@ -105,7 +105,7 @@ class Vertex {
     friend Vertex operator * (ai_real, const Vertex&);
 
 public:
-    Vertex() {}
+    Vertex() = default;
 
     // ----------------------------------------------------------------------------
     /** Extract a particular vertex from a mesh and interleave all components */