122 lines
2.1 KiB
C++
122 lines
2.1 KiB
C++
#include "OBJReader.h"
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#include <sstream>
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#include <fstream>
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using namespace std;
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OBJReader::OBJReader()
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{
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_mPos = 0;
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_mNormal = 0;
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_mTexel = 0;
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}
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OBJReader::~OBJReader()
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{
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}
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void OBJReader::readOBJFile( wstring fileName )
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{
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fstream inStream;
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string typeOfData = " ";
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float vertexData;
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string face1, face2, face3;
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inStream.open( fileName, fstream::in );
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if( inStream.is_open() )
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{
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while( !inStream.eof() )
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{
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inStream >> typeOfData;
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if( typeOfData == "v" )
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{
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Oyster::Math::Float3 position;
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inStream >> vertexData;
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position.x = vertexData;
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inStream >> vertexData;
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position.y = vertexData;
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inStream >> vertexData;
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position.z = vertexData;
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_mVertexCoord.push_back( position );
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}
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else if( typeOfData == "vt" )
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{
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Oyster::Math::Float2 texel;
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inStream >> vertexData;
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texel.x = vertexData;
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inStream >> vertexData;
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texel.y = 1 - vertexData;
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_mVertexTexture.push_back( texel );
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}
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else if( typeOfData == "vn" )
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{
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Oyster::Math::Float3 normal;
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inStream >> vertexData;
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normal.x = vertexData;
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inStream >> vertexData;
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normal.y = vertexData;
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inStream >> vertexData;
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normal.z = vertexData;
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_mVertexNormal.push_back( normal );
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}
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else if( typeOfData == "f" )
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{
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inStream >> face1;
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stringSplit( face1 );
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addToOBJarray();
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inStream >> face2;
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stringSplit( face2 );
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addToOBJarray();
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inStream >> face3;
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stringSplit( face3 );
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addToOBJarray();
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}
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}
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}
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inStream.close();
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}
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//Private functions
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void OBJReader::stringSplit( string strToSplit )
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{
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char delim = '/';
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string vPos, vNormal, vTexel;
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stringstream aStream(strToSplit);
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getline( aStream, vPos, delim );
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getline( aStream, vTexel, delim );
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getline( aStream, vNormal );
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_mPos = atoi( vPos.c_str() );
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_mNormal = atoi( vNormal.c_str() );
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_mTexel = atoi( vTexel.c_str() );
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}
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void OBJReader::addToOBJarray()
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{
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OBJFormat temp;
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temp._d3VertexCoord = _mVertexCoord.at( _mPos - 1 );
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temp._d3VertexNormal = _mVertexNormal.at( _mNormal - 1 );
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temp._d3VertexTexture = _mVertexTexture.at( _mTexel - 1 );
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_myOBJ.push_back( temp );
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} |