commit
7abf2b9412
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@ -55,7 +55,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <assimp/scene.h>
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#include <assimp/importerdesc.h>
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using namespace Assimp;
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using namespace ::Assimp;
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static const aiImporterDesc desc = {
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"Stanford Polygon Library (PLY) Importer",
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@ -73,22 +73,20 @@ static const aiImporterDesc desc = {
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// ------------------------------------------------------------------------------------------------
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// Internal stuff
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namespace
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{
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// ------------------------------------------------------------------------------------------------
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// Checks that property index is within range
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template <class T>
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const T &GetProperty(const std::vector<T> &props, int idx)
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{
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if (static_cast<size_t>(idx) >= props.size()) {
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throw DeadlyImportError("Invalid .ply file: Property index is out of range.");
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namespace {
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// ------------------------------------------------------------------------------------------------
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// Checks that property index is within range
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template <class T>
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inline
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const T &GetProperty(const std::vector<T> &props, int idx) {
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if (static_cast<size_t>(idx) >= props.size()) {
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throw DeadlyImportError("Invalid .ply file: Property index is out of range.");
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}
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return props[idx];
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}
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return props[idx];
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}
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}
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// ------------------------------------------------------------------------------------------------
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// Constructor to be privately used by Importer
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PLYImporter::PLYImporter()
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@ -129,7 +127,7 @@ const aiImporterDesc* PLYImporter::GetInfo() const {
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// ------------------------------------------------------------------------------------------------
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static bool isBigEndian(const char* szMe) {
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ai_assert(NULL != szMe);
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ai_assert(nullptr != szMe);
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// binary_little_endian
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// binary_big_endian
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@ -150,7 +148,7 @@ static bool isBigEndian(const char* szMe) {
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// ------------------------------------------------------------------------------------------------
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// Imports the given file into the given scene structure.
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void PLYImporter::InternReadFile(const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) {
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static const std::string mode = "rb";
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const std::string mode = "rb";
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std::unique_ptr<IOStream> fileStream(pIOHandler->Open(pFile, mode));
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if (!fileStream.get()) {
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throw DeadlyImportError("Failed to open file " + pFile + ".");
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@ -184,7 +182,7 @@ void PLYImporter::InternReadFile(const std::string& pFile, aiScene* pScene, IOSy
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char* szMe = (char*)&this->mBuffer[0];
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SkipSpacesAndLineEnd(szMe, (const char**)&szMe);
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// determine the format of the file data and construct the aimesh
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// determine the format of the file data and construct the aiMesh
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PLY::DOM sPlyDom;
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this->pcDOM = &sPlyDom;
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@ -192,7 +190,7 @@ void PLYImporter::InternReadFile(const std::string& pFile, aiScene* pScene, IOSy
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if (TokenMatch(szMe, "ascii", 5)) {
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SkipLine(szMe, (const char**)&szMe);
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if (!PLY::DOM::ParseInstance(streamedBuffer, &sPlyDom, this)) {
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if (mGeneratedMesh != NULL) {
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if (mGeneratedMesh != nullptr) {
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delete(mGeneratedMesh);
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mGeneratedMesh = nullptr;
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}
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@ -206,7 +204,7 @@ void PLYImporter::InternReadFile(const std::string& pFile, aiScene* pScene, IOSy
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// skip the line, parse the rest of the header and build the DOM
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if (!PLY::DOM::ParseInstanceBinary(streamedBuffer, &sPlyDom, this, bIsBE)) {
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if (mGeneratedMesh != NULL) {
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if (mGeneratedMesh != nullptr) {
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delete(mGeneratedMesh);
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mGeneratedMesh = nullptr;
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}
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@ -215,7 +213,7 @@ void PLYImporter::InternReadFile(const std::string& pFile, aiScene* pScene, IOSy
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throw DeadlyImportError("Invalid .ply file: Unable to build DOM (#2)");
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}
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} else {
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if (mGeneratedMesh != NULL) {
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if (mGeneratedMesh != nullptr) {
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delete(mGeneratedMesh);
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mGeneratedMesh = nullptr;
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}
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@ -225,7 +223,7 @@ void PLYImporter::InternReadFile(const std::string& pFile, aiScene* pScene, IOSy
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}
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} else {
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AI_DEBUG_INVALIDATE_PTR(this->mBuffer);
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if (mGeneratedMesh != NULL) {
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if (mGeneratedMesh != nullptr) {
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delete(mGeneratedMesh);
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mGeneratedMesh = nullptr;
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}
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@ -237,13 +235,13 @@ void PLYImporter::InternReadFile(const std::string& pFile, aiScene* pScene, IOSy
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//free the file buffer
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streamedBuffer.close();
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if (mGeneratedMesh == NULL) {
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if (mGeneratedMesh == nullptr) {
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throw DeadlyImportError("Invalid .ply file: Unable to extract mesh data ");
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}
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// if no face list is existing we assume that the vertex
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// list is containing a list of points
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bool pointsOnly = mGeneratedMesh->mFaces == NULL ? true : false;
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bool pointsOnly = mGeneratedMesh->mFaces == nullptr ? true : false;
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if (pointsOnly) {
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mGeneratedMesh->mPrimitiveTypes = aiPrimitiveType::aiPrimitiveType_POINT;
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}
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@ -277,8 +275,8 @@ void PLYImporter::InternReadFile(const std::string& pFile, aiScene* pScene, IOSy
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}
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void PLYImporter::LoadVertex(const PLY::Element* pcElement, const PLY::ElementInstance* instElement, unsigned int pos) {
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ai_assert(NULL != pcElement);
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ai_assert(NULL != instElement);
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ai_assert(nullptr != pcElement);
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ai_assert(nullptr != instElement);
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ai_uint aiPositions[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
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PLY::EDataType aiTypes[3] = { EDT_Char, EDT_Char, EDT_Char };
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@ -416,7 +414,7 @@ void PLYImporter::LoadVertex(const PLY::Element* pcElement, const PLY::ElementIn
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haveColor = true;
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}
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// assume 1.0 for the alpha channel ifit is not set
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// assume 1.0 for the alpha channel if it is not set
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if (0xFFFFFFFF == aiColors[3]) {
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cOut.a = 1.0;
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} else {
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@ -481,225 +479,205 @@ void PLYImporter::LoadVertex(const PLY::Element* pcElement, const PLY::ElementIn
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// ------------------------------------------------------------------------------------------------
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// Convert a color component to [0...1]
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ai_real PLYImporter::NormalizeColorValue(PLY::PropertyInstance::ValueUnion val, PLY::EDataType eType) {
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switch (eType)
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{
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case EDT_Float:
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return val.fFloat;
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case EDT_Double:
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return (ai_real)val.fDouble;
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switch (eType) {
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case EDT_Float:
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return val.fFloat;
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case EDT_Double:
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return (ai_real)val.fDouble;
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case EDT_UChar:
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return (ai_real)val.iUInt / (ai_real)0xFF;
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case EDT_Char:
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return (ai_real)(val.iInt + (0xFF / 2)) / (ai_real)0xFF;
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case EDT_UShort:
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return (ai_real)val.iUInt / (ai_real)0xFFFF;
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case EDT_Short:
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return (ai_real)(val.iInt + (0xFFFF / 2)) / (ai_real)0xFFFF;
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case EDT_UInt:
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return (ai_real)val.iUInt / (ai_real)0xFFFF;
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case EDT_Int:
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return ((ai_real)val.iInt / (ai_real)0xFF) + 0.5f;
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default:
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break;
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}
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case EDT_UChar:
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return (ai_real)val.iUInt / (ai_real)0xFF;
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case EDT_Char:
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return (ai_real)(val.iInt + (0xFF / 2)) / (ai_real)0xFF;
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case EDT_UShort:
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return (ai_real)val.iUInt / (ai_real)0xFFFF;
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case EDT_Short:
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return (ai_real)(val.iInt + (0xFFFF / 2)) / (ai_real)0xFFFF;
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case EDT_UInt:
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return (ai_real)val.iUInt / (ai_real)0xFFFF;
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case EDT_Int:
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return ((ai_real)val.iInt / (ai_real)0xFF) + 0.5f;
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default:;
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};
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return 0.0f;
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return 0.0f;
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}
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// ------------------------------------------------------------------------------------------------
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// Try to extract proper faces from the PLY DOM
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void PLYImporter::LoadFace(const PLY::Element* pcElement, const PLY::ElementInstance* instElement, unsigned int pos)
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{
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ai_assert(NULL != pcElement);
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ai_assert(NULL != instElement);
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void PLYImporter::LoadFace(const PLY::Element* pcElement, const PLY::ElementInstance* instElement,
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unsigned int pos) {
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ai_assert(nullptr != pcElement);
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ai_assert(nullptr != instElement);
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if (mGeneratedMesh == NULL)
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throw DeadlyImportError("Invalid .ply file: Vertices should be declared before faces");
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bool bOne = false;
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// index of the vertex index list
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unsigned int iProperty = 0xFFFFFFFF;
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PLY::EDataType eType = EDT_Char;
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bool bIsTriStrip = false;
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// index of the material index property
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//unsigned int iMaterialIndex = 0xFFFFFFFF;
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//PLY::EDataType eType2 = EDT_Char;
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// texture coordinates
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unsigned int iTextureCoord = 0xFFFFFFFF;
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PLY::EDataType eType3 = EDT_Char;
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// face = unique number of vertex indices
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if (PLY::EEST_Face == pcElement->eSemantic)
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{
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unsigned int _a = 0;
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for (std::vector<PLY::Property>::const_iterator a = pcElement->alProperties.begin();
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a != pcElement->alProperties.end(); ++a, ++_a)
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{
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if (PLY::EST_VertexIndex == (*a).Semantic)
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{
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// must be a dynamic list!
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if (!(*a).bIsList)
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continue;
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iProperty = _a;
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bOne = true;
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eType = (*a).eType;
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}
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/*else if (PLY::EST_MaterialIndex == (*a).Semantic)
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{
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if ((*a).bIsList)
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continue;
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iMaterialIndex = _a;
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bOne = true;
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eType2 = (*a).eType;
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}*/
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else if (PLY::EST_TextureCoordinates == (*a).Semantic)
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{
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// must be a dynamic list!
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if (!(*a).bIsList)
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continue;
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iTextureCoord = _a;
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bOne = true;
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eType3 = (*a).eType;
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}
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}
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}
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// triangle strip
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// TODO: triangle strip and material index support???
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else if (PLY::EEST_TriStrip == pcElement->eSemantic)
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{
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unsigned int _a = 0;
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for (std::vector<PLY::Property>::const_iterator a = pcElement->alProperties.begin();
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a != pcElement->alProperties.end(); ++a, ++_a)
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{
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// must be a dynamic list!
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if (!(*a).bIsList)
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continue;
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iProperty = _a;
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bOne = true;
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bIsTriStrip = true;
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eType = (*a).eType;
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break;
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}
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}
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// check whether we have at least one per-face information set
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if (bOne)
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{
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if (mGeneratedMesh->mFaces == NULL)
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{
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mGeneratedMesh->mNumFaces = pcElement->NumOccur;
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mGeneratedMesh->mFaces = new aiFace[mGeneratedMesh->mNumFaces];
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if (mGeneratedMesh == nullptr) {
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throw DeadlyImportError("Invalid .ply file: Vertices should be declared before faces");
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}
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if (!bIsTriStrip)
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{
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// parse the list of vertex indices
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if (0xFFFFFFFF != iProperty)
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{
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const unsigned int iNum = (unsigned int)GetProperty(instElement->alProperties, iProperty).avList.size();
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mGeneratedMesh->mFaces[pos].mNumIndices = iNum;
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mGeneratedMesh->mFaces[pos].mIndices = new unsigned int[iNum];
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bool bOne = false;
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std::vector<PLY::PropertyInstance::ValueUnion>::const_iterator p =
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GetProperty(instElement->alProperties, iProperty).avList.begin();
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// index of the vertex index list
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unsigned int iProperty = 0xFFFFFFFF;
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PLY::EDataType eType = EDT_Char;
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bool bIsTriStrip = false;
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for (unsigned int a = 0; a < iNum; ++a, ++p)
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{
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mGeneratedMesh->mFaces[pos].mIndices[a] = PLY::PropertyInstance::ConvertTo<unsigned int>(*p, eType);
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}
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}
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// index of the material index property
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//unsigned int iMaterialIndex = 0xFFFFFFFF;
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//PLY::EDataType eType2 = EDT_Char;
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// parse the material index
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// cannot be handled without processing the whole file first
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/*if (0xFFFFFFFF != iMaterialIndex)
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{
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mGeneratedMesh->mFaces[pos]. = PLY::PropertyInstance::ConvertTo<unsigned int>(
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GetProperty(instElement->alProperties, iMaterialIndex).avList.front(), eType2);
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}*/
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// texture coordinates
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unsigned int iTextureCoord = 0xFFFFFFFF;
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PLY::EDataType eType3 = EDT_Char;
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if (0xFFFFFFFF != iTextureCoord)
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{
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const unsigned int iNum = (unsigned int)GetProperty(instElement->alProperties, iTextureCoord).avList.size();
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// face = unique number of vertex indices
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if (PLY::EEST_Face == pcElement->eSemantic) {
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unsigned int _a = 0;
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for (std::vector<PLY::Property>::const_iterator a = pcElement->alProperties.begin();
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a != pcElement->alProperties.end(); ++a, ++_a) {
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if (PLY::EST_VertexIndex == (*a).Semantic) {
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// must be a dynamic list!
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if (!(*a).bIsList) {
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continue;
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}
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//should be 6 coords
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std::vector<PLY::PropertyInstance::ValueUnion>::const_iterator p =
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GetProperty(instElement->alProperties, iTextureCoord).avList.begin();
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if ((iNum / 3) == 2) // X Y coord
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{
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for (unsigned int a = 0; a < iNum; ++a, ++p)
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{
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unsigned int vindex = mGeneratedMesh->mFaces[pos].mIndices[a / 2];
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if (vindex < mGeneratedMesh->mNumVertices)
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{
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if (mGeneratedMesh->mTextureCoords[0] == NULL)
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{
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mGeneratedMesh->mNumUVComponents[0] = 2;
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mGeneratedMesh->mTextureCoords[0] = new aiVector3D[mGeneratedMesh->mNumVertices];
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}
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if (a % 2 == 0)
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mGeneratedMesh->mTextureCoords[0][vindex].x = PLY::PropertyInstance::ConvertTo<ai_real>(*p, eType3);
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else
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mGeneratedMesh->mTextureCoords[0][vindex].y = PLY::PropertyInstance::ConvertTo<ai_real>(*p, eType3);
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mGeneratedMesh->mTextureCoords[0][vindex].z = 0;
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iProperty = _a;
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bOne = true;
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eType = (*a).eType;
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} else if (PLY::EST_TextureCoordinates == (*a).Semantic) {
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// must be a dynamic list!
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if (!(*a).bIsList) {
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continue;
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}
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iTextureCoord = _a;
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bOne = true;
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eType3 = (*a).eType;
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}
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}
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}
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}
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}
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else // triangle strips
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{
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// normally we have only one triangle strip instance where
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// a value of -1 indicates a restart of the strip
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bool flip = false;
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const std::vector<PLY::PropertyInstance::ValueUnion>& quak = GetProperty(instElement->alProperties, iProperty).avList;
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//pvOut->reserve(pvOut->size() + quak.size() + (quak.size()>>2u)); //Limits memory consumption
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int aiTable[2] = { -1, -1 };
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for (std::vector<PLY::PropertyInstance::ValueUnion>::const_iterator a = quak.begin(); a != quak.end(); ++a) {
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const int p = PLY::PropertyInstance::ConvertTo<int>(*a, eType);
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if (-1 == p) {
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// restart the strip ...
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aiTable[0] = aiTable[1] = -1;
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flip = false;
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continue;
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// triangle strip
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// TODO: triangle strip and material index support???
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else if (PLY::EEST_TriStrip == pcElement->eSemantic) {
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unsigned int _a = 0;
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for (std::vector<PLY::Property>::const_iterator a = pcElement->alProperties.begin();
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a != pcElement->alProperties.end(); ++a, ++_a) {
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// must be a dynamic list!
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if (!(*a).bIsList) {
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continue;
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}
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iProperty = _a;
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bOne = true;
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bIsTriStrip = true;
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eType = (*a).eType;
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break;
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}
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if (-1 == aiTable[0]) {
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aiTable[0] = p;
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continue;
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}
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if (-1 == aiTable[1]) {
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aiTable[1] = p;
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continue;
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}
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// check whether we have at least one per-face information set
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if (bOne) {
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if (mGeneratedMesh->mFaces == nullptr) {
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mGeneratedMesh->mNumFaces = pcElement->NumOccur;
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mGeneratedMesh->mFaces = new aiFace[mGeneratedMesh->mNumFaces];
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}
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if (mGeneratedMesh->mFaces == NULL)
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if (!bIsTriStrip) {
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// parse the list of vertex indices
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if (0xFFFFFFFF != iProperty) {
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const unsigned int iNum = (unsigned int)GetProperty(instElement->alProperties, iProperty).avList.size();
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mGeneratedMesh->mFaces[pos].mNumIndices = iNum;
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mGeneratedMesh->mFaces[pos].mIndices = new unsigned int[iNum];
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std::vector<PLY::PropertyInstance::ValueUnion>::const_iterator p =
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GetProperty(instElement->alProperties, iProperty).avList.begin();
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for (unsigned int a = 0; a < iNum; ++a, ++p) {
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mGeneratedMesh->mFaces[pos].mIndices[a] = PLY::PropertyInstance::ConvertTo<unsigned int>(*p, eType);
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}
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}
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// parse the material index
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||||
// cannot be handled without processing the whole file first
|
||||
/*if (0xFFFFFFFF != iMaterialIndex)
|
||||
{
|
||||
mGeneratedMesh->mNumFaces = pcElement->NumOccur;
|
||||
mGeneratedMesh->mFaces = new aiFace[mGeneratedMesh->mNumFaces];
|
||||
mGeneratedMesh->mFaces[pos]. = PLY::PropertyInstance::ConvertTo<unsigned int>(
|
||||
GetProperty(instElement->alProperties, iMaterialIndex).avList.front(), eType2);
|
||||
}*/
|
||||
|
||||
if (0xFFFFFFFF != iTextureCoord) {
|
||||
const unsigned int iNum = (unsigned int)GetProperty(instElement->alProperties, iTextureCoord).avList.size();
|
||||
|
||||
//should be 6 coords
|
||||
std::vector<PLY::PropertyInstance::ValueUnion>::const_iterator p =
|
||||
GetProperty(instElement->alProperties, iTextureCoord).avList.begin();
|
||||
|
||||
if ((iNum / 3) == 2) // X Y coord
|
||||
{
|
||||
for (unsigned int a = 0; a < iNum; ++a, ++p) {
|
||||
unsigned int vindex = mGeneratedMesh->mFaces[pos].mIndices[a / 2];
|
||||
if (vindex < mGeneratedMesh->mNumVertices) {
|
||||
if (mGeneratedMesh->mTextureCoords[0] == nullptr ) {
|
||||
mGeneratedMesh->mNumUVComponents[0] = 2;
|
||||
mGeneratedMesh->mTextureCoords[0] = new aiVector3D[mGeneratedMesh->mNumVertices];
|
||||
}
|
||||
|
||||
if (a % 2 == 0) {
|
||||
mGeneratedMesh->mTextureCoords[0][vindex].x = PLY::PropertyInstance::ConvertTo<ai_real>(*p, eType3);
|
||||
} else {
|
||||
mGeneratedMesh->mTextureCoords[0][vindex].y = PLY::PropertyInstance::ConvertTo<ai_real>(*p, eType3);
|
||||
}
|
||||
|
||||
mGeneratedMesh->mTextureCoords[0][vindex].z = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
} else { // triangle strips
|
||||
// normally we have only one triangle strip instance where
|
||||
// a value of -1 indicates a restart of the strip
|
||||
bool flip = false;
|
||||
const std::vector<PLY::PropertyInstance::ValueUnion>& quak = GetProperty(instElement->alProperties, iProperty).avList;
|
||||
//pvOut->reserve(pvOut->size() + quak.size() + (quak.size()>>2u)); //Limits memory consumption
|
||||
|
||||
int aiTable[2] = { -1, -1 };
|
||||
for (std::vector<PLY::PropertyInstance::ValueUnion>::const_iterator a = quak.begin(); a != quak.end(); ++a) {
|
||||
const int p = PLY::PropertyInstance::ConvertTo<int>(*a, eType);
|
||||
|
||||
if (-1 == p) {
|
||||
// restart the strip ...
|
||||
aiTable[0] = aiTable[1] = -1;
|
||||
flip = false;
|
||||
continue;
|
||||
}
|
||||
if (-1 == aiTable[0]) {
|
||||
aiTable[0] = p;
|
||||
continue;
|
||||
}
|
||||
if (-1 == aiTable[1]) {
|
||||
aiTable[1] = p;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (mGeneratedMesh->mFaces == nullptr) {
|
||||
mGeneratedMesh->mNumFaces = pcElement->NumOccur;
|
||||
mGeneratedMesh->mFaces = new aiFace[mGeneratedMesh->mNumFaces];
|
||||
}
|
||||
|
||||
mGeneratedMesh->mFaces[pos].mNumIndices = 3;
|
||||
mGeneratedMesh->mFaces[pos].mIndices = new unsigned int[3];
|
||||
mGeneratedMesh->mFaces[pos].mIndices[0] = aiTable[0];
|
||||
mGeneratedMesh->mFaces[pos].mIndices[1] = aiTable[1];
|
||||
mGeneratedMesh->mFaces[pos].mIndices[2] = p;
|
||||
|
||||
// every second pass swap the indices.
|
||||
flip = !flip;
|
||||
if ( flip ) {
|
||||
std::swap(mGeneratedMesh->mFaces[pos].mIndices[0], mGeneratedMesh->mFaces[pos].mIndices[1]);
|
||||
}
|
||||
|
||||
aiTable[0] = aiTable[1];
|
||||
aiTable[1] = p;
|
||||
}
|
||||
}
|
||||
|
||||
mGeneratedMesh->mFaces[pos].mNumIndices = 3;
|
||||
mGeneratedMesh->mFaces[pos].mIndices = new unsigned int[3];
|
||||
mGeneratedMesh->mFaces[pos].mIndices[0] = aiTable[0];
|
||||
mGeneratedMesh->mFaces[pos].mIndices[1] = aiTable[1];
|
||||
mGeneratedMesh->mFaces[pos].mIndices[2] = p;
|
||||
|
||||
if ((flip = !flip)) {
|
||||
std::swap(mGeneratedMesh->mFaces[pos].mIndices[0], mGeneratedMesh->mFaces[pos].mIndices[1]);
|
||||
}
|
||||
|
||||
aiTable[0] = aiTable[1];
|
||||
aiTable[1] = p;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ------------------------------------------------------------------------------------------------
|
||||
|
|
Loading…
Reference in New Issue