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ObjExporter: cleanup code. Fix bug writing normal: normals would not be transformed by world transform.

pull/363/head
Alexander Gessler 2014-06-17 14:15:48 +02:00
parent 247f5cee3a
commit 244f981f6a
1 changed files with 11 additions and 12 deletions
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23
code/ObjExporter.cpp
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@ -199,7 +199,7 @@ void ObjExporter :: WriteGeometryFile()
// collect mesh geometry // collect mesh geometry
aiMatrix4x4 mBase; aiMatrix4x4 mBase;
AddNode(pScene->mRootNode,mBase); AddNode(pScene->mRootNode, mBase);
// write vertex positions // write vertex positions
vpMap.getVectors(vp); vpMap.getVectors(vp);
@ -258,14 +258,12 @@ void ObjExporter :: WriteGeometryFile()
} }
} }
// ------------------------------------------------------------------------------------------------
int ObjExporter::vecIndexMap::getIndex(const aiVector3D& vec) int ObjExporter::vecIndexMap::getIndex(const aiVector3D& vec)
{ {
vecIndexMap::dataType::iterator vertIt = vecMap.find(vec); vecIndexMap::dataType::iterator vertIt = vecMap.find(vec);
if(vertIt != vecMap.end()){// vertex already exists, so reference it // vertex already exists, so reference it
if(vertIt != vecMap.end()){
return vertIt->second; return vertIt->second;
} }
vecMap[vec] = mNextIndex; vecMap[vec] = mNextIndex;
@ -274,6 +272,7 @@ int ObjExporter::vecIndexMap::getIndex(const aiVector3D& vec)
return ret; return ret;
} }
// ------------------------------------------------------------------------------------------------
void ObjExporter::vecIndexMap::getVectors( std::vector<aiVector3D>& vecs ) void ObjExporter::vecIndexMap::getVectors( std::vector<aiVector3D>& vecs )
{ {
vecs.resize(vecMap.size()); vecs.resize(vecMap.size());
@ -282,14 +281,13 @@ void ObjExporter::vecIndexMap::getVectors( std::vector<aiVector3D>& vecs )
} }
} }
// ------------------------------------------------------------------------------------------------ // ------------------------------------------------------------------------------------------------
void ObjExporter :: AddMesh(const aiString& name, const aiMesh* m, const aiMatrix4x4& mat) void ObjExporter :: AddMesh(const aiString& name, const aiMesh* m, const aiMatrix4x4& mat)
{ {
meshes.push_back(MeshInstance()); meshes.push_back(MeshInstance());
MeshInstance& mesh = meshes.back(); MeshInstance& mesh = meshes.back();
mesh.name = std::string(name.data,name.length) + (m->mName.length ? "_"+std::string(m->mName.data,m->mName.length) : ""); mesh.name = std::string(name.data,name.length) + (m->mName.length ? "_" + std::string(m->mName.data,m->mName.length) : "");
mesh.matname = GetMaterialName(m->mMaterialIndex); mesh.matname = GetMaterialName(m->mMaterialIndex);
mesh.faces.resize(m->mNumFaces); mesh.faces.resize(m->mNumFaces);
@ -317,7 +315,8 @@ void ObjExporter :: AddMesh(const aiString& name, const aiMesh* m, const aiMatri
face.indices[a].vp = vpMap.getIndex(vert); face.indices[a].vp = vpMap.getIndex(vert);
if (m->mNormals) { if (m->mNormals) {
face.indices[a].vn = vnMap.getIndex(m->mNormals[idx]); aiVector3D norm = aiMatrix3x3(mat) * m->mNormals[idx];
face.indices[a].vn = vnMap.getIndex(norm);
} }
else{ else{
face.indices[a].vn = 0; face.indices[a].vn = 0;
@ -339,11 +338,11 @@ void ObjExporter :: AddNode(const aiNode* nd, const aiMatrix4x4& mParent)
const aiMatrix4x4& mAbs = mParent * nd->mTransformation; const aiMatrix4x4& mAbs = mParent * nd->mTransformation;
for(unsigned int i = 0; i < nd->mNumMeshes; ++i) { for(unsigned int i = 0; i < nd->mNumMeshes; ++i) {
AddMesh(nd->mName, pScene->mMeshes[nd->mMeshes[i]],mAbs); AddMesh(nd->mName, pScene->mMeshes[nd->mMeshes[i]], mAbs);
} }
for(unsigned int i = 0; i < nd->mNumChildren; ++i) { for(unsigned int i = 0; i < nd->mNumChildren; ++i) {
AddNode(nd->mChildren[i],mAbs); AddNode(nd->mChildren[i], mAbs);
} }
} }