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Merge branch 'master' into issue-1167

pull/1922/head
Kim Kulling 2018-05-02 15:45:52 +02:00 committed by GitHub
parent 1533aec21c 18ad80fd20
commit 2acb513732
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GPG Key ID: 4AEE18F83AFDEB23
20 changed files with 377 additions and 216 deletions
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19
code/Exporter.cpp
View File

@ -62,6 +62,7 @@ Here we implement only the C++ interface (Assimp::Exporter).
#include "JoinVerticesProcess.h"
#include "MakeVerboseFormat.h"
#include "ConvertToLHProcess.h"
#include "PretransformVertices.h"
#include <assimp/Exceptional.h>
#include "ScenePrivate.h"
#include <memory>
@ -397,6 +398,11 @@ aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const c
}
}
bool exportPointCloud(false);
if (nullptr != pProperties) {
exportPointCloud = pProperties->GetPropertyBool(AI_CONFIG_EXPORT_POINT_CLOUDS);
}
// dispatch other processes
for( unsigned int a = 0; a < pimpl->mPostProcessingSteps.size(); a++) {
BaseProcess* const p = pimpl->mPostProcessingSteps[a];
@ -405,7 +411,9 @@ aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const c
&& !dynamic_cast<FlipUVsProcess*>(p)
&& !dynamic_cast<FlipWindingOrderProcess*>(p)
&& !dynamic_cast<MakeLeftHandedProcess*>(p)) {
if (dynamic_cast<PretransformVertices*>(p) && exportPointCloud) {
continue;
}
p->Execute(scenecopy.get());
}
}
@ -441,7 +449,6 @@ const char* Exporter::GetErrorString() const {
return pimpl->mError.c_str();
}
// ------------------------------------------------------------------------------------------------
void Exporter::FreeBlob() {
delete pimpl->blob;
@ -470,7 +477,7 @@ size_t Exporter::GetExportFormatCount() const {
// ------------------------------------------------------------------------------------------------
const aiExportFormatDesc* Exporter::GetExportFormatDescription( size_t index ) const {
if (index >= GetExportFormatCount()) {
return NULL;
return nullptr;
}
// Return from static storage if the requested index is built-in.
@ -495,7 +502,8 @@ aiReturn Exporter::RegisterExporter(const ExportFormatEntry& desc) {
// ------------------------------------------------------------------------------------------------
void Exporter::UnregisterExporter(const char* id) {
for(std::vector<ExportFormatEntry>::iterator it = pimpl->mExporters.begin(); it != pimpl->mExporters.end(); ++it) {
for(std::vector<ExportFormatEntry>::iterator it = pimpl->mExporters.begin();
it != pimpl->mExporters.end(); ++it) {
if (!strcmp((*it).mDescription.id,id)) {
pimpl->mExporters.erase(it);
break;
@ -531,8 +539,7 @@ bool ExportProperties::SetPropertyFloat(const char* szName, ai_real iValue) {
// ------------------------------------------------------------------------------------------------
// Set a configuration property
bool ExportProperties :: SetPropertyString(const char* szName, const std::string& value)
{
bool ExportProperties::SetPropertyString(const char* szName, const std::string& value) {
return SetGenericProperty<std::string>(mStringProperties, szName,value);
}

27
code/FBXConverter.cpp
View File

@ -874,7 +874,7 @@ void Converter::ConvertModel( const Model& model, aiNode& nd, const aiMatrix4x4&
const MeshGeometry* const mesh = dynamic_cast< const MeshGeometry* >( geo );
if ( mesh ) {
const std::vector<unsigned int>& indices = ConvertMesh( *mesh, model, node_global_transform );
const std::vector<unsigned int>& indices = ConvertMesh( *mesh, model, node_global_transform, nd);
std::copy( indices.begin(), indices.end(), std::back_inserter( meshes ) );
}
else {
@ -891,7 +891,7 @@ void Converter::ConvertModel( const Model& model, aiNode& nd, const aiMatrix4x4&
}
std::vector<unsigned int> Converter::ConvertMesh( const MeshGeometry& mesh, const Model& model,
const aiMatrix4x4& node_global_transform )
const aiMatrix4x4& node_global_transform, aiNode& nd)
{
std::vector<unsigned int> temp;
@ -915,17 +915,17 @@ std::vector<unsigned int> Converter::ConvertMesh( const MeshGeometry& mesh, cons
const MatIndexArray::value_type base = mindices[ 0 ];
for( MatIndexArray::value_type index : mindices ) {
if ( index != base ) {
return ConvertMeshMultiMaterial( mesh, model, node_global_transform );
return ConvertMeshMultiMaterial( mesh, model, node_global_transform, nd);
}
}
}
// faster code-path, just copy the data
temp.push_back( ConvertMeshSingleMaterial( mesh, model, node_global_transform ) );
temp.push_back( ConvertMeshSingleMaterial( mesh, model, node_global_transform, nd) );
return temp;
}
aiMesh* Converter::SetupEmptyMesh( const MeshGeometry& mesh )
aiMesh* Converter::SetupEmptyMesh( const MeshGeometry& mesh, aiNode& nd)
{
aiMesh* const out_mesh = new aiMesh();
meshes.push_back( out_mesh );
@ -940,15 +940,19 @@ aiMesh* Converter::SetupEmptyMesh( const MeshGeometry& mesh )
if ( name.length() ) {
out_mesh->mName.Set( name );
}
else
{
out_mesh->mName = nd.mName;
}
return out_mesh;
}
unsigned int Converter::ConvertMeshSingleMaterial( const MeshGeometry& mesh, const Model& model,
const aiMatrix4x4& node_global_transform )
const aiMatrix4x4& node_global_transform, aiNode& nd)
{
const MatIndexArray& mindices = mesh.GetMaterialIndices();
aiMesh* const out_mesh = SetupEmptyMesh( mesh );
aiMesh* const out_mesh = SetupEmptyMesh(mesh, nd);
const std::vector<aiVector3D>& vertices = mesh.GetVertices();
const std::vector<unsigned int>& faces = mesh.GetFaceIndexCounts();
@ -1072,7 +1076,7 @@ unsigned int Converter::ConvertMeshSingleMaterial( const MeshGeometry& mesh, con
}
std::vector<unsigned int> Converter::ConvertMeshMultiMaterial( const MeshGeometry& mesh, const Model& model,
const aiMatrix4x4& node_global_transform )
const aiMatrix4x4& node_global_transform, aiNode& nd)
{
const MatIndexArray& mindices = mesh.GetMaterialIndices();
ai_assert( mindices.size() );
@ -1083,7 +1087,7 @@ std::vector<unsigned int> Converter::ConvertMeshMultiMaterial( const MeshGeometr
for( MatIndexArray::value_type index : mindices ) {
if ( had.find( index ) == had.end() ) {
indices.push_back( ConvertMeshMultiMaterial( mesh, model, index, node_global_transform ) );
indices.push_back( ConvertMeshMultiMaterial( mesh, model, index, node_global_transform, nd) );
had.insert( index );
}
}
@ -1093,9 +1097,10 @@ std::vector<unsigned int> Converter::ConvertMeshMultiMaterial( const MeshGeometr
unsigned int Converter::ConvertMeshMultiMaterial( const MeshGeometry& mesh, const Model& model,
MatIndexArray::value_type index,
const aiMatrix4x4& node_global_transform )
const aiMatrix4x4& node_global_transform,
aiNode& nd)
{
aiMesh* const out_mesh = SetupEmptyMesh( mesh );
aiMesh* const out_mesh = SetupEmptyMesh(mesh, nd);
const MatIndexArray& mindices = mesh.GetMaterialIndices();
const std::vector<aiVector3D>& vertices = mesh.GetVertices();

10
code/FBXConverter.h
View File

@ -172,23 +172,23 @@ private:
// ------------------------------------------------------------------------------------------------
// MeshGeometry -> aiMesh, return mesh index + 1 or 0 if the conversion failed
std::vector<unsigned int> ConvertMesh(const MeshGeometry& mesh, const Model& model,
const aiMatrix4x4& node_global_transform);
const aiMatrix4x4& node_global_transform, aiNode& nd);
// ------------------------------------------------------------------------------------------------
aiMesh* SetupEmptyMesh(const MeshGeometry& mesh);
aiMesh* SetupEmptyMesh(const MeshGeometry& mesh, aiNode& nd);
// ------------------------------------------------------------------------------------------------
unsigned int ConvertMeshSingleMaterial(const MeshGeometry& mesh, const Model& model,
const aiMatrix4x4& node_global_transform);
const aiMatrix4x4& node_global_transform, aiNode& nd);
// ------------------------------------------------------------------------------------------------
std::vector<unsigned int> ConvertMeshMultiMaterial(const MeshGeometry& mesh, const Model& model,
const aiMatrix4x4& node_global_transform);
const aiMatrix4x4& node_global_transform, aiNode& nd);
// ------------------------------------------------------------------------------------------------
unsigned int ConvertMeshMultiMaterial(const MeshGeometry& mesh, const Model& model,
MatIndexArray::value_type index,
const aiMatrix4x4& node_global_transform);
const aiMatrix4x4& node_global_transform, aiNode& nd);
// ------------------------------------------------------------------------------------------------
static const unsigned int NO_MATERIAL_SEPARATION = /* std::numeric_limits<unsigned int>::max() */

90
code/ObjExporter.cpp
View File

@ -114,14 +114,13 @@ static const std::string MaterialExt = ".mtl";
ObjExporter::ObjExporter(const char* _filename, const aiScene* pScene, bool noMtl)
: filename(_filename)
, pScene(pScene)
, vp()
, vn()
, vt()
, vc()
, mVpMap()
, vp()
, useVc(false)
, mVnMap()
, mVtMap()
, mVcMap()
, mVpMap()
, mMeshes()
, endl("\n") {
// make sure that all formatting happens using the standard, C locale and not the user's current locale
@ -268,27 +267,22 @@ void ObjExporter::WriteGeometryFile(bool noMtl) {
AddNode(pScene->mRootNode, mBase);
// write vertex positions with colors, if any
mVpMap.getVectors( vp );
mVcMap.getColors( vc );
if ( vc.empty() ) {
mVpMap.getKeys( vp );
if ( !useVc ) {
mOutput << "# " << vp.size() << " vertex positions" << endl;
for ( const aiVector3D& v : vp ) {
mOutput << "v " << v.x << " " << v.y << " " << v.z << endl;
for ( const vertexData& v : vp ) {
mOutput << "v " << v.vp.x << " " << v.vp.y << " " << v.vp.z << endl;
}
} else {
mOutput << "# " << vp.size() << " vertex positions and colors" << endl;
size_t colIdx = 0;
for ( const aiVector3D& v : vp ) {
if ( colIdx < vc.size() ) {
mOutput << "v " << v.x << " " << v.y << " " << v.z << " " << vc[ colIdx ].r << " " << vc[ colIdx ].g << " " << vc[ colIdx ].b << endl;
}
++colIdx;
for ( const vertexData& v : vp ) {
mOutput << "v " << v.vp.x << " " << v.vp.y << " " << v.vp.z << " " << v.vc.r << " " << v.vc.g << " " << v.vc.b << endl;
}
}
mOutput << endl;
// write uv coordinates
mVtMap.getVectors(vt);
mVtMap.getKeys(vt);
mOutput << "# " << vt.size() << " UV coordinates" << endl;
for(const aiVector3D& v : vt) {
mOutput << "vt " << v.x << " " << v.y << " " << v.z << endl;
@ -296,7 +290,7 @@ void ObjExporter::WriteGeometryFile(bool noMtl) {
mOutput << endl;
// write vertex normals
mVnMap.getVectors(vn);
mVnMap.getKeys(vn);
mOutput << "# " << vn.size() << " vertex normals" << endl;
for(const aiVector3D& v : vn) {
mOutput << "vn " << v.x << " " << v.y << " " << v.z << endl;
@ -337,54 +331,15 @@ void ObjExporter::WriteGeometryFile(bool noMtl) {
}
}
// ------------------------------------------------------------------------------------------------
int ObjExporter::vecIndexMap::getIndex(const aiVector3D& vec) {
vecIndexMap::dataType::iterator vertIt = vecMap.find(vec);
// vertex already exists, so reference it
if(vertIt != vecMap.end()){
return vertIt->second;
}
vecMap[vec] = mNextIndex;
int ret = mNextIndex;
mNextIndex++;
return ret;
}
// ------------------------------------------------------------------------------------------------
void ObjExporter::vecIndexMap::getVectors( std::vector<aiVector3D>& vecs ) {
vecs.resize(vecMap.size());
for(vecIndexMap::dataType::iterator it = vecMap.begin(); it != vecMap.end(); ++it){
vecs[it->second-1] = it->first;
}
}
// ------------------------------------------------------------------------------------------------
int ObjExporter::colIndexMap::getIndex( const aiColor4D& col ) {
colIndexMap::dataType::iterator vertIt = colMap.find( col );
// vertex already exists, so reference it
if ( vertIt != colMap.end() ) {
return vertIt->second;
}
colMap[ col ] = mNextIndex;
int ret = mNextIndex;
mNextIndex++;
return ret;
}
// ------------------------------------------------------------------------------------------------
void ObjExporter::colIndexMap::getColors( std::vector<aiColor4D> &colors ) {
colors.resize( colMap.size() );
for ( colIndexMap::dataType::iterator it = colMap.begin(); it != colMap.end(); ++it ) {
colors[ it->second - 1 ] = it->first;
}
}
// ------------------------------------------------------------------------------------------------
void ObjExporter::AddMesh(const aiString& name, const aiMesh* m, const aiMatrix4x4& mat) {
mMeshes.push_back(MeshInstance() );
MeshInstance& mesh = mMeshes.back();
if ( nullptr != m->mColors[ 0 ] ) {
useVc = true;
}
mesh.name = std::string( name.data, name.length );
mesh.matname = GetMaterialName(m->mMaterialIndex);
@ -410,7 +365,13 @@ void ObjExporter::AddMesh(const aiString& name, const aiMesh* m, const aiMatrix4
const unsigned int idx = f.mIndices[a];
aiVector3D vert = mat * m->mVertices[idx];
face.indices[a].vp = mVpMap.getIndex(vert);
if ( nullptr != m->mColors[ 0 ] ) {
aiColor4D col4 = m->mColors[ 0 ][ idx ];
face.indices[a].vp = mVpMap.getIndex({vert, aiColor3D(col4.r, col4.g, col4.b)});
} else {
face.indices[a].vp = mVpMap.getIndex({vert, aiColor3D(0,0,0)});
}
if (m->mNormals) {
aiVector3D norm = aiMatrix3x3(mat) * m->mNormals[idx];
@ -419,13 +380,6 @@ void ObjExporter::AddMesh(const aiString& name, const aiMesh* m, const aiMatrix4
face.indices[a].vn = 0;
}
if ( nullptr != m->mColors[ 0 ] ) {
aiColor4D col4 = m->mColors[ 0 ][ idx ];
face.indices[ a ].vc = mVcMap.getIndex( col4 );
} else {
face.indices[ a ].vc = 0;
}
if ( m->mTextureCoords[ 0 ] ) {
face.indices[a].vt = mVtMap.getIndex(m->mTextureCoords[0][idx]);
} else {

99
code/ObjExporter.h
View File

@ -77,13 +77,12 @@ private:
FaceVertex()
: vp()
, vn()
, vt()
, vc() {
, vt() {
// empty
}
// one-based, 0 means: 'does not exist'
unsigned int vp, vn, vt, vc;
unsigned int vp, vn, vt;
};
struct Face {
@ -106,66 +105,80 @@ private:
private:
std::string filename;
const aiScene* const pScene;
std::vector<aiVector3D> vp, vn, vt;
struct vertexData {
aiVector3D vp;
aiColor3D vc; // OBJ does not support 4D color
};
std::vector<aiVector3D> vn, vt;
std::vector<aiColor4D> vc;
std::vector<vertexData> vp;
bool useVc;
struct aiVectorCompare {
bool operator() (const aiVector3D& a, const aiVector3D& b) const {
if(a.x < b.x) return true;
if(a.x > b.x) return false;
if(a.y < b.y) return true;
if(a.y > b.y) return false;
if(a.z < b.z) return true;
struct vertexDataCompare {
bool operator() ( const vertexData& a, const vertexData& b ) const {
// position
if (a.vp.x < b.vp.x) return true;
if (a.vp.x > b.vp.x) return false;
if (a.vp.y < b.vp.y) return true;
if (a.vp.y > b.vp.y) return false;
if (a.vp.z < b.vp.z) return true;
if (a.vp.z > b.vp.z) return false;
// color
if (a.vc.r < b.vc.r) return true;
if (a.vc.r > b.vc.r) return false;
if (a.vc.g < b.vc.g) return true;
if (a.vc.g > b.vc.g) return false;
if (a.vc.b < b.vc.b) return true;
if (a.vc.b > b.vc.b) return false;
return false;
}
};
struct aiColor4Compare {
bool operator() ( const aiColor4D& a, const aiColor4D& b ) const {
if ( a.r < b.r ) return true;
if ( a.r > b.r ) return false;
if ( a.g < b.g ) return true;
if ( a.g > b.g ) return false;
if ( a.b < b.b ) return true;
if ( a.b > b.b ) return false;
if ( a.a < b.a ) return true;
if ( a.a > b.a ) return false;
struct aiVectorCompare {
bool operator() (const aiVector3D& a, const aiVector3D& b) const {
if(a.x < b.x) return true;
if(a.x > b.x) return false;
if(a.y < b.y) return true;
if(a.y > b.y) return false;
if(a.z < b.z) return true;
return false;
}
};
class vecIndexMap {
template <class T, class Compare = std::less<T>>
class indexMap {
int mNextIndex;
typedef std::map<aiVector3D, int, aiVectorCompare> dataType;
typedef std::map<T, int, Compare> dataType;
dataType vecMap;
public:
vecIndexMap()
indexMap()
: mNextIndex(1) {
// empty
}
int getIndex(const aiVector3D& vec);
void getVectors( std::vector<aiVector3D>& vecs );
int getIndex(const T& key) {
typename dataType::iterator vertIt = vecMap.find(key);
// vertex already exists, so reference it
if(vertIt != vecMap.end()){
return vertIt->second;
}
return vecMap[key] = mNextIndex++;
};
void getKeys( std::vector<T>& keys ) {
keys.resize(vecMap.size());
for(typename dataType::iterator it = vecMap.begin(); it != vecMap.end(); ++it){
keys[it->second-1] = it->first;
}
};
};
class colIndexMap {
int mNextIndex;
typedef std::map<aiColor4D, int, aiColor4Compare> dataType;
dataType colMap;
public:
colIndexMap()
: mNextIndex( 1 ) {
// empty
}
int getIndex( const aiColor4D& col );
void getColors( std::vector<aiColor4D> &colors );
};
vecIndexMap mVpMap, mVnMap, mVtMap;
colIndexMap mVcMap;
indexMap<aiVector3D, aiVectorCompare> mVnMap, mVtMap;
indexMap<vertexData, vertexDataCompare> mVpMap;
std::vector<MeshInstance> mMeshes;
// this endl() doesn't flush() the stream

20
code/PretransformVertices.cpp
View File

@ -60,14 +60,17 @@ using namespace Assimp;
// ------------------------------------------------------------------------------------------------
// Constructor to be privately used by Importer
PretransformVertices::PretransformVertices()
: configKeepHierarchy (false), configNormalize(false), configTransform(false), configTransformation()
{
: configKeepHierarchy (false)
, configNormalize(false)
, configTransform(false)
, configTransformation()
, mConfigPointCloud( false ) {
// empty
}
// ------------------------------------------------------------------------------------------------
// Destructor, private as well
PretransformVertices::~PretransformVertices()
{
PretransformVertices::~PretransformVertices() {
// nothing to do here
}
@ -89,6 +92,8 @@ void PretransformVertices::SetupProperties(const Importer* pImp)
configTransform = (0 != pImp->GetPropertyInteger(AI_CONFIG_PP_PTV_ADD_ROOT_TRANSFORMATION,0));
configTransformation = pImp->GetPropertyMatrix(AI_CONFIG_PP_PTV_ROOT_TRANSFORMATION, aiMatrix4x4());
mConfigPointCloud = pImp->GetPropertyBool(AI_CONFIG_EXPORT_POINT_CLOUDS);
}
// ------------------------------------------------------------------------------------------------
@ -502,9 +507,7 @@ void PretransformVertices::Execute( aiScene* pScene)
pScene->mMeshes[i]->mBones = NULL;
pScene->mMeshes[i]->mNumBones = 0;
}
}
else {
} else {
apcOutMeshes.reserve(pScene->mNumMaterials<<1u);
std::list<unsigned int> aiVFormats;
@ -556,7 +559,8 @@ void PretransformVertices::Execute( aiScene* pScene)
}
// If no meshes are referenced in the node graph it is possible that we get no output meshes.
if (apcOutMeshes.empty()) {
if (apcOutMeshes.empty()) {
throw DeadlyImportError("No output meshes: all meshes are orphaned and are not referenced by any nodes");
}
else

9
code/PretransformVertices.h
View File

@ -61,15 +61,11 @@ namespace Assimp {
* and removes the whole graph. The output is a list of meshes, one for
* each material.
*/
class ASSIMP_API PretransformVertices : public BaseProcess
{
class ASSIMP_API PretransformVertices : public BaseProcess {
public:
PretransformVertices ();
~PretransformVertices ();
public:
// -------------------------------------------------------------------
// Check whether step is active
bool IsActive( unsigned int pFlags) const;
@ -82,7 +78,6 @@ public:
// Setup import settings
void SetupProperties(const Importer* pImp);
// -------------------------------------------------------------------
/** @brief Toggle the 'keep hierarchy' option
* @param d hm ... difficult to guess what this means, hu!?
@ -100,7 +95,6 @@ public:
}
private:
// -------------------------------------------------------------------
// Count the number of nodes
unsigned int CountNodes( aiNode* pcNode );
@ -161,6 +155,7 @@ private:
bool configNormalize;
bool configTransform;
aiMatrix4x4 configTransformation;
bool mConfigPointCloud;
};
} // end of namespace Assimp

1
code/RemoveRedundantMaterials.h
View File

@ -50,6 +50,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <assimp/mesh.h>
class RemoveRedundantMatsTest;
namespace Assimp {
// ---------------------------------------------------------------------------

64
code/STLExporter.cpp
View File

@ -54,14 +54,17 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <assimp/ByteSwapper.h>
using namespace Assimp;
namespace Assimp {
// ------------------------------------------------------------------------------------------------
// Worker function for exporting a scene to Stereolithograpy. Prototyped and registered in Exporter.cpp
void ExportSceneSTL(const char* pFile,IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* /*pProperties*/)
void ExportSceneSTL(const char* pFile,IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* pProperties )
{
bool exportPointClouds = pProperties->GetPropertyBool(AI_CONFIG_EXPORT_POINT_CLOUDS);
// invoke the exporter
STLExporter exporter(pFile, pScene);
STLExporter exporter(pFile, pScene, exportPointClouds );
if (exporter.mOutput.fail()) {
throw DeadlyExportError("output data creation failed. Most likely the file became too large: " + std::string(pFile));
@ -75,10 +78,12 @@ void ExportSceneSTL(const char* pFile,IOSystem* pIOSystem, const aiScene* pScene
outfile->Write( exporter.mOutput.str().c_str(), static_cast<size_t>(exporter.mOutput.tellp()),1);
}
void ExportSceneSTLBinary(const char* pFile,IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* /*pProperties*/)
void ExportSceneSTLBinary(const char* pFile,IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* pProperties )
{
bool exportPointClouds = pProperties->GetPropertyBool(AI_CONFIG_EXPORT_POINT_CLOUDS);
// invoke the exporter
STLExporter exporter(pFile, pScene, true);
STLExporter exporter(pFile, pScene, exportPointClouds, true);
if (exporter.mOutput.fail()) {
throw DeadlyExportError("output data creation failed. Most likely the file became too large: " + std::string(pFile));
@ -95,9 +100,11 @@ void ExportSceneSTLBinary(const char* pFile,IOSystem* pIOSystem, const aiScene*
} // end of namespace Assimp
static const char *SolidToken = "solid";
static const char *EndSolidToken = "endsolid";
// ------------------------------------------------------------------------------------------------
STLExporter :: STLExporter(const char* _filename, const aiScene* pScene, bool binary)
STLExporter::STLExporter(const char* _filename, const aiScene* pScene, bool exportPointClouds, bool binary)
: filename(_filename)
, endl("\n")
{
@ -118,22 +125,55 @@ STLExporter :: STLExporter(const char* _filename, const aiScene* pScene, bool bi
}
AI_SWAP4(meshnum);
mOutput.write((char *)&meshnum, 4);
if (exportPointClouds) {
}
for(unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
WriteMeshBinary(pScene->mMeshes[i]);
}
} else {
const std::string& name = "AssimpScene";
mOutput << "solid " << name << endl;
// Exporting only point clouds
if (exportPointClouds) {
WritePointCloud("Assimp_Pointcloud", pScene );
return;
}
// Export the assimp mesh
const std::string name = "AssimpScene";
mOutput << SolidToken << " " << name << endl;
for(unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
WriteMesh(pScene->mMeshes[i]);
WriteMesh(pScene->mMeshes[ i ]);
}
mOutput << "endsolid " << name << endl;
mOutput << EndSolidToken << name << endl;
}
}
// ------------------------------------------------------------------------------------------------
void STLExporter :: WriteMesh(const aiMesh* m)
void STLExporter::WritePointCloud(const std::string &name, const aiScene* pScene) {
mOutput << " " << SolidToken << " " << name << endl;
aiVector3D nor;
mOutput << " facet normal " << nor.x << " " << nor.y << " " << nor.z << endl;
for (unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
aiMesh *mesh = pScene->mMeshes[i];
if (nullptr == mesh) {
continue;
}
for (unsigned int a = 0; a < mesh->mNumVertices; ++a) {
const aiVector3D& v = mesh->mVertices[a];
mOutput << " vertex " << v.x << " " << v.y << " " << v.z << endl;
mOutput << " vertex " << v.x << " " << v.y << " " << v.z << endl;
mOutput << " vertex " << v.x << " " << v.y << " " << v.z << endl;
}
}
mOutput << EndSolidToken << " " << name << endl;
}
// ------------------------------------------------------------------------------------------------
void STLExporter::WriteMesh(const aiMesh* m)
{
for (unsigned int i = 0; i < m->mNumFaces; ++i) {
const aiFace& f = m->mFaces[i];
@ -145,7 +185,7 @@ void STLExporter :: WriteMesh(const aiMesh* m)
for(unsigned int a = 0; a < f.mNumIndices; ++a) {
nor += m->mNormals[f.mIndices[a]];
}
nor.Normalize();
nor.NormalizeSafe();
}
mOutput << " facet normal " << nor.x << " " << nor.y << " " << nor.z << endl;
mOutput << " outer loop" << endl;
@ -159,7 +199,7 @@ void STLExporter :: WriteMesh(const aiMesh* m)
}
}
void STLExporter :: WriteMeshBinary(const aiMesh* m)
void STLExporter::WriteMeshBinary(const aiMesh* m)
{
for (unsigned int i = 0; i < m->mNumFaces; ++i) {
const aiFace& f = m->mFaces[i];

9
code/STLExporter.h
View File

@ -52,8 +52,7 @@ struct aiScene;
struct aiNode;
struct aiMesh;
namespace Assimp
{
namespace Assimp {
// ------------------------------------------------------------------------------------------------
/** Helper class to export a given scene to a STL file. */
@ -62,15 +61,13 @@ class STLExporter
{
public:
/// Constructor for a specific scene to export
STLExporter(const char* filename, const aiScene* pScene, bool binary = false);
public:
STLExporter(const char* filename, const aiScene* pScene, bool exportPOintClouds, bool binary = false);
/// public stringstreams to write all output into
std::ostringstream mOutput;
private:
void WritePointCloud(const std::string &name, const aiScene* pScene);
void WriteMesh(const aiMesh* m);
void WriteMeshBinary(const aiMesh* m);

1
code/simd.cpp
View File

@ -75,4 +75,5 @@ bool CPUSupportsSSE2() {
#endif
}
} // Namespace Assimp

22
include/assimp/Exporter.hpp
View File

@ -115,12 +115,16 @@ public:
}
};
public:
/**
* @brief The class constructor.
*/
Exporter();
/**
* @brief The class destructor.
*/
~Exporter();
public:
// -------------------------------------------------------------------
/** Supplies a custom IO handler to the exporter to use to open and
* access files.
@ -172,8 +176,10 @@ public:
* Any IO handlers set via #SetIOHandler are ignored here.
* @note Use aiCopyScene() to get a modifiable copy of a previously
* imported scene. */
const aiExportDataBlob* ExportToBlob(const aiScene* pScene, const char* pFormatId, unsigned int pPreprocessing = 0u, const ExportProperties* = NULL);
const aiExportDataBlob* ExportToBlob( const aiScene* pScene, const std::string& pFormatId, unsigned int pPreprocessing = 0u, const ExportProperties* pProperties = NULL);
const aiExportDataBlob* ExportToBlob(const aiScene* pScene, const char* pFormatId,
unsigned int pPreprocessing = 0u, const ExportProperties* = nullptr);
const aiExportDataBlob* ExportToBlob( const aiScene* pScene, const std::string& pFormatId,
unsigned int pPreprocessing = 0u, const ExportProperties* pProperties = nullptr);
// -------------------------------------------------------------------
/** Convenience function to export directly to a file. Use
@ -208,8 +214,10 @@ public:
* @return AI_SUCCESS if everything was fine.
* @note Use aiCopyScene() to get a modifiable copy of a previously
* imported scene.*/
aiReturn Export( const aiScene* pScene, const char* pFormatId, const char* pPath, unsigned int pPreprocessing = 0u, const ExportProperties* pProperties = NULL);
aiReturn Export( const aiScene* pScene, const std::string& pFormatId, const std::string& pPath, unsigned int pPreprocessing = 0u, const ExportProperties* pProperties = NULL);
aiReturn Export( const aiScene* pScene, const char* pFormatId, const char* pPath,
unsigned int pPreprocessing = 0u, const ExportProperties* pProperties = nullptr);
aiReturn Export( const aiScene* pScene, const std::string& pFormatId, const std::string& pPath,
unsigned int pPreprocessing = 0u, const ExportProperties* pProperties = nullptr);
// -------------------------------------------------------------------
/** Returns an error description of an error that occurred in #Export

48
include/assimp/GenericProperty.h
View File

@ -46,15 +46,15 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <assimp/Importer.hpp>
#include <assimp/ai_assert.h>
#include "Hash.h"
#include <map>
#include <map>
// ------------------------------------------------------------------------------------------------
template <class T>
inline bool SetGenericProperty(std::map< unsigned int, T >& list,
const char* szName, const T& value)
{
ai_assert(NULL != szName);
inline
bool SetGenericProperty(std::map< unsigned int, T >& list,
const char* szName, const T& value) {
ai_assert(nullptr != szName);
const uint32_t hash = SuperFastHash(szName);
typename std::map<unsigned int, T>::iterator it = list.find(hash);
@ -63,20 +63,22 @@ inline bool SetGenericProperty(std::map< unsigned int, T >& list,
return false;
}
(*it).second = value;
return true;
}
// ------------------------------------------------------------------------------------------------
template <class T>
inline const T& GetGenericProperty(const std::map< unsigned int, T >& list,
const char* szName, const T& errorReturn)
{
ai_assert(NULL != szName);
inline
const T& GetGenericProperty(const std::map< unsigned int, T >& list,
const char* szName, const T& errorReturn) {
ai_assert(nullptr != szName);
const uint32_t hash = SuperFastHash(szName);
typename std::map<unsigned int, T>::const_iterator it = list.find(hash);
if (it == list.end())
if (it == list.end()) {
return errorReturn;
}
return (*it).second;
}
@ -85,16 +87,17 @@ inline const T& GetGenericProperty(const std::map< unsigned int, T >& list,
// Special version for pointer types - they will be deleted when replaced with another value
// passing NULL removes the whole property
template <class T>
inline void SetGenericPropertyPtr(std::map< unsigned int, T* >& list,
const char* szName, T* value, bool* bWasExisting = NULL)
{
ai_assert(NULL != szName);
inline
void SetGenericPropertyPtr(std::map< unsigned int, T* >& list,
const char* szName, T* value, bool* bWasExisting = nullptr ) {
ai_assert(nullptr != szName);
const uint32_t hash = SuperFastHash(szName);
typename std::map<unsigned int, T*>::iterator it = list.find(hash);
if (it == list.end()) {
if (bWasExisting)
if (bWasExisting) {
*bWasExisting = false;
}
list.insert(std::pair<unsigned int,T*>( hash, value ));
return;
@ -106,20 +109,23 @@ inline void SetGenericPropertyPtr(std::map< unsigned int, T* >& list,
if (!value) {
list.erase(it);
}
if (bWasExisting)
if (bWasExisting) {
*bWasExisting = true;
}
}
// ------------------------------------------------------------------------------------------------
template <class T>
inline bool HasGenericProperty(const std::map< unsigned int, T >& list,
const char* szName)
{
ai_assert(NULL != szName);
inline
bool HasGenericProperty(const std::map< unsigned int, T >& list,
const char* szName) {
ai_assert(nullptr != szName);
const uint32_t hash = SuperFastHash(szName);
typename std::map<unsigned int, T>::const_iterator it = list.find(hash);
if (it == list.end()) return false;
if (it == list.end()) {
return false;
}
return true;
}

6
include/assimp/cexport.h
View File

@ -85,7 +85,6 @@ struct aiExportFormatDesc
*/
ASSIMP_API size_t aiGetExportFormatCount(void);
// --------------------------------------------------------------------------------
/** Returns a description of the nth export file format. Use #aiGetExportFormatCount()
* to learn how many export formats are supported. The description must be released by
@ -186,7 +185,6 @@ ASSIMP_API aiReturn aiExportSceneEx( const C_STRUCT aiScene* pScene,
C_STRUCT aiFileIO* pIO,
unsigned int pPreprocessing );
// --------------------------------------------------------------------------------
/** Describes a blob of exported scene data. Use #aiExportSceneToBlob() to create a blob containing an
* exported scene. The memory referred by this structure is owned by Assimp.
@ -245,8 +243,8 @@ private:
* @param pPreprocessing Please see the documentation for #aiExportScene
* @return the exported data or NULL in case of error
*/
ASSIMP_API const C_STRUCT aiExportDataBlob* aiExportSceneToBlob( const C_STRUCT aiScene* pScene, const char* pFormatId, unsigned int pPreprocessing );
ASSIMP_API const C_STRUCT aiExportDataBlob* aiExportSceneToBlob( const C_STRUCT aiScene* pScene, const char* pFormatId,
unsigned int pPreprocessing );
// --------------------------------------------------------------------------------
/** Releases the memory associated with the given exported data. Use this function to free a data blob

5
include/assimp/config.h.in
View File

@ -953,6 +953,11 @@ enum aiComponent
#define AI_CONFIG_EXPORT_XFILE_64BIT "EXPORT_XFILE_64BIT"
/**
*
*/
#define AI_CONFIG_EXPORT_POINT_CLOUDS "EXPORT_POINT_CLOUDS"
/**
* @brief Specifies a gobal key factor for scale, float value
*/

16
test/models/OBJ/cube_with_vertexcolors.obj
View File

@ -1,13 +1,13 @@
g cube
v 0.0 0.0 0.0 124 110 120
v 0.0 0.0 1.0 24 0 121
v 0.0 1.0 0.0 4 0 44
v 0.0 1.0 1.0 224 0 10
v 1.0 0.0 0.0 24 200 25
v 1.0 0.0 1.0 124 10 56
v 1.0 1.0 0.0 78 10 50
v 1.0 1.0 1.0 23 0 200
v 0.0 0.0 0.0 0.48627 0.43137 0.47059
v 0.0 0.0 1.0 0.09412 0.00000 0.47451
v 0.0 1.0 0.0 0.01569 0.00000 0.17255
v 0.0 1.0 1.0 0.87843 0.00000 0.03922
v 1.0 0.0 0.0 0.09412 0.78431 0.09804
v 1.0 0.0 1.0 0.48627 0.03922 0.21961
v 1.0 1.0 0.0 0.30588 0.03922 0.19608
v 1.0 1.0 1.0 0.09020 0.00000 0.78431
vn 0.0 0.0 1.0
vn 0.0 0.0 -1.0

30
test/models/OBJ/cube_with_vertexcolors_uni.obj 100644
View File

@ -0,0 +1,30 @@
g cube
v 0.0 0.0 0.0 0.0 0.0 0.0
v 0.0 0.0 1.0 1.0 0.6 0.3
v 0.0 1.0 0.0 0.0 0.0 0.0
v 0.0 1.0 1.0 0.3 0.6 1.0
v 1.0 0.0 0.0 0.0 0.0 0.0
v 1.0 0.0 1.0 1.0 0.6 0.3
v 1.0 1.0 0.0 0.0 0.0 0.0
v 1.0 1.0 1.0 0.3 0.6 1.0
vn 0.0 0.0 1.0
vn 0.0 0.0 -1.0
vn 0.0 1.0 0.0
vn 0.0 -1.0 0.0
vn 1.0 0.0 0.0
vn -1.0 0.0 0.0
f 1//2 7//2 5//2
f 1//2 3//2 7//2
f 1//6 4//6 3//6
f 1//6 2//6 4//6
f 3//3 8//3 7//3
f 3//3 4//3 8//3
f 5//5 7//5 8//5
f 5//5 8//5 6//5
f 1//4 5//4 6//4
f 1//4 6//4 2//4
f 2//1 6//1 8//1
f 2//1 8//1 4//1

22
test/unit/utObjImportExport.cpp
View File

@ -267,6 +267,28 @@ TEST_F( utObjImportExport, issue809_vertex_color_Test ) {
#endif // ASSIMP_BUILD_NO_EXPORT
}
TEST_F( utObjImportExport, issue1923_vertex_color_Test ) {
::Assimp::Importer importer;
const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/OBJ/cube_with_vertexcolors_uni.obj", aiProcess_ValidateDataStructure );
EXPECT_NE( nullptr, scene );
scene = importer.GetOrphanedScene();
#ifndef ASSIMP_BUILD_NO_EXPORT
::Assimp::Exporter exporter;
const aiExportDataBlob* blob = exporter.ExportToBlob( scene, "obj");
EXPECT_NE( nullptr, blob );
const aiScene *sceneReImport = importer.ReadFileFromMemory( blob->data, blob->size, aiProcess_ValidateDataStructure );
EXPECT_NE( nullptr, scene );
SceneDiffer differ;
EXPECT_TRUE( differ.isEqual( scene, sceneReImport ) );
#endif // ASSIMP_BUILD_NO_EXPORT
delete scene;
}
TEST_F( utObjImportExport, issue1453_segfault ) {
static const std::string ObjModel =
"v 0.0 0.0 0.0\n"

21
test/unit/utPLYImportExport.cpp
View File

@ -138,18 +138,19 @@ TEST_F( utPLYImportExport, vertexColorTest ) {
EXPECT_EQ(2u, first_face.mIndices[2]);
}
//Test issue #623, PLY importer should not automatically create faces
// Test issue #623, PLY importer should not automatically create faces
TEST_F(utPLYImportExport, pointcloudTest) {
Assimp::Importer importer;
//Could not use aiProcess_ValidateDataStructure since it's missing faces.
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/PLY/issue623.ply", 0);
EXPECT_NE(nullptr, scene);
Assimp::Importer importer;
EXPECT_EQ(1u, scene->mNumMeshes);
EXPECT_NE(nullptr, scene->mMeshes[0]);
EXPECT_EQ(24u, scene->mMeshes[0]->mNumVertices);
EXPECT_EQ(aiPrimitiveType::aiPrimitiveType_POINT, scene->mMeshes[0]->mPrimitiveTypes);
EXPECT_EQ(0u, scene->mMeshes[0]->mNumFaces);
//Could not use aiProcess_ValidateDataStructure since it's missing faces.
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/PLY/issue623.ply", 0);
EXPECT_NE(nullptr, scene);
EXPECT_EQ(1u, scene->mNumMeshes);
EXPECT_NE(nullptr, scene->mMeshes[0]);
EXPECT_EQ(24u, scene->mMeshes[0]->mNumVertices);
EXPECT_EQ(aiPrimitiveType::aiPrimitiveType_POINT, scene->mMeshes[0]->mPrimitiveTypes);
EXPECT_EQ(0u, scene->mMeshes[0]->mNumFaces);
}
static const char *test_file =

74
test/unit/utSTLImportExport.cpp
View File

@ -47,6 +47,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <assimp/Importer.hpp>
#include <assimp/postprocess.h>
#include <assimp/Exporter.hpp>
#include <assimp/scene.h>
#include <vector>
using namespace Assimp;
@ -68,3 +72,73 @@ TEST_F( utSTLImporterExporter, test_with_two_solids ) {
const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/STL/triangle_with_two_solids.stl", aiProcess_ValidateDataStructure );
EXPECT_NE( nullptr, scene );
}
#ifndef ASSIMP_BUILD_NO_EXPORT
TEST_F(utSTLImporterExporter, exporterTest) {
Assimp::Importer importer;
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/STL/Spider_ascii.stl", aiProcess_ValidateDataStructure);
Assimp::Exporter mAiExporter;
mAiExporter.Export( scene, "stl", "spiderExport.stl" );
const aiScene *scene2 = importer.ReadFile("spiderExport.stl", aiProcess_ValidateDataStructure);
EXPECT_NE(nullptr, scene2);
}
TEST_F(utSTLImporterExporter, test_export_pointclouds) {
struct XYZ {
float x, y, z;
};
std::vector<XYZ> points;
for (size_t i = 0; i < 10; ++i) {
XYZ current;
current.x = static_cast<float>(i);
current.y = static_cast<float>(i);
current.z = static_cast<float>(i);
points.push_back(current);
}
aiScene scene;
scene.mRootNode = new aiNode();
scene.mMeshes = new aiMesh*[1];
scene.mMeshes[0] = nullptr;
scene.mNumMeshes = 1;
scene.mMaterials = new aiMaterial*[1];
scene.mMaterials[0] = nullptr;
scene.mNumMaterials = 1;
scene.mMaterials[0] = new aiMaterial();
scene.mMeshes[0] = new aiMesh();
scene.mMeshes[0]->mMaterialIndex = 0;
scene.mRootNode->mMeshes = new unsigned int[1];
scene.mRootNode->mMeshes[0] = 0;
scene.mRootNode->mNumMeshes = 1;
auto pMesh = scene.mMeshes[0];
long numValidPoints = points.size();
pMesh->mVertices = new aiVector3D[numValidPoints];
pMesh->mNumVertices = numValidPoints;
int i = 0;
for (XYZ &p : points) {
pMesh->mVertices[i] = aiVector3D(p.x, p.y, p.z);
++i;
}
Assimp::Exporter mAiExporter;
ExportProperties *properties = new ExportProperties;
properties->SetPropertyBool(AI_CONFIG_EXPORT_POINT_CLOUDS, true);
mAiExporter.Export(&scene, "stl", "testExport.stl", 0, properties );
delete properties;
}
#endif