// -------------------------------------------------------------------
// Get values for a new face instance
void ObjFileParser::getFace(aiPrimitiveType type)
{
copyNextLine(m_buffer, BUFFERSIZE);
if (m_DataIt == m_DataItEnd)
return;
char *pPtr = m_buffer;
char *pEnd = &pPtr[BUFFERSIZE];
pPtr = getNextToken<char*>(pPtr, pEnd);
if (pPtr == pEnd || *pPtr == '\0')
return;
std::vector<unsigned int> *pIndices = new std::vector<unsigned int>;
std::vector<unsigned int> *pTexID = new std::vector<unsigned int>;
std::vector<unsigned int> *pNormalID = new std::vector<unsigned int>;
bool hasNormal = false;
const int vSize = m_pModel->m_Vertices.size();
const int vtSize = m_pModel->m_TextureCoord.size();
const int vnSize = m_pModel->m_Normals.size();
const bool vt = (!m_pModel->m_TextureCoord.empty());
const bool vn = (!m_pModel->m_Normals.empty());
int iStep = 0, iPos = 0;
while (pPtr != pEnd)
{
iStep = 1;
if (IsLineEnd(*pPtr))
break;
if (*pPtr=='/' )
{
if (type == aiPrimitiveType_POINT) {
DefaultLogger::get()->error("Obj: Separator unexpected in point statement");
}
if (iPos == 0)
{
//if there are no texture coordinates in the file, but normals
if (!vt && vn) {
iPos = 1;
iStep++;
}
}
iPos++;
}
else if ( isSeparator(*pPtr) )
{
iPos = 0;
}
else
{
//OBJ USES 1 Base ARRAYS!!!!
const int iVal = atoi( pPtr );
// increment iStep position based off of the sign and # of digits
int tmp = iVal;
if (iVal < 0)
++iStep;
while ( ( tmp = tmp / 10 )!=0 )
++iStep;
if ( iVal > 0 )
{
// Store parsed index
if ( 0 == iPos )
{
pIndices->push_back( iVal-1 );
}
else if ( 1 == iPos )
{
pTexID->push_back( iVal-1 );
}
else if ( 2 == iPos )
{
pNormalID->push_back( iVal-1 );
hasNormal = true;
}
else
{
reportErrorTokenInFace();
}
}
else if ( iVal < 0 )
{
// Store relatively index
if ( 0 == iPos )
{
pIndices->push_back( vSize + iVal );
}
else if ( 1 == iPos )
{
pTexID->push_back( vtSize + iVal );
}
else if ( 2 == iPos )
{
pNormalID->push_back( vnSize + iVal );
hasNormal = true;
}
else
{
reportErrorTokenInFace();
}
}
}
pPtr += iStep;
}
if ( pIndices->empty() )
{
DefaultLogger::get()->error("Obj: Ignoring empty face");
m_DataIt = skipLine<DataArrayIt>( m_DataIt, m_DataItEnd, m_uiLine );
return;
}
ObjFile::Face *face = new ObjFile::Face( pIndices, pNormalID, pTexID, type );
// Set active material, if one set
if (NULL != m_pModel->m_pCurrentMaterial)
face->m_pMaterial = m_pModel->m_pCurrentMaterial;
else
face->m_pMaterial = m_pModel->m_pDefaultMaterial;
// Create a default object, if nothing is there
if ( NULL == m_pModel->m_pCurrent )
createObject( "defaultobject" );
// Assign face to mesh
if ( NULL == m_pModel->m_pCurrentMesh )
{
createMesh();
}
// Store the face
m_pModel->m_pCurrentMesh->m_Faces.push_back( face );
m_pModel->m_pCurrentMesh->m_uiNumIndices += (unsigned int)face->m_pVertices->size();
m_pModel->m_pCurrentMesh->m_uiUVCoordinates[ 0 ] += (unsigned int)face->m_pTexturCoords[0].size();
if( !m_pModel->m_pCurrentMesh->m_hasNormals && hasNormal )
{
m_pModel->m_pCurrentMesh->m_hasNormals = true;
}
// Skip the rest of the line
m_DataIt = skipLine<DataArrayIt>( m_DataIt, m_DataItEnd, m_uiLine );
}
// -------------------------------------------------------------------
// Get values for a new face instance
void ObjFileParser::getFace()
{
copyNextLine(m_buffer, BUFFERSIZE);
if (m_DataIt == m_DataItEnd)
return;
char *pPtr = m_buffer;
char *pEnd = &pPtr[BUFFERSIZE];
pPtr = getNextToken<char*>(pPtr, pEnd);
if (pPtr == '\0')
return;
std::vector<unsigned int> *pIndices = new std::vector<unsigned int>;
std::vector<unsigned int> *pTexID = new std::vector<unsigned int>;
std::vector<unsigned int> *pNormalID = new std::vector<unsigned int>;
bool hasNormal = false;
bool vt = (!m_pModel->m_TextureCoord.empty());
bool vn = (!m_pModel->m_Normals.empty());
int iStep = 0, iPos = 0;
while (pPtr != pEnd)
{
iStep = 1;
if (*pPtr == '\0')
break;
if (*pPtr=='\r')
break;
if (*pPtr=='/' )
{
if (iPos == 0)
{
//if there are no texturecoordinates in the obj file but normals
if (!vt && vn) {
iPos = 1;
iStep++;
}
}
iPos++;
}
else if ( isSeparator(*pPtr) )
{
iPos = 0;
}
else
{
//OBJ USES 1 Base ARRAYS!!!!
const int iVal = atoi( pPtr );
int tmp = iVal;
while ( ( tmp = tmp / 10 )!=0 )
++iStep;
if ( iVal > 0 )
{
// Store parsed index
if ( 0 == iPos )
{
pIndices->push_back( iVal-1 );
}
else if ( 1 == iPos )
{
pTexID->push_back( iVal-1 );
}
else if ( 2 == iPos )
{
pNormalID->push_back( iVal-1 );
hasNormal = true;
}
else
{
reportErrorTokenInFace();
}
}
}
for ( int i=0; i<iStep; i++ )
++pPtr;
}
ObjFile::Face *face = new ObjFile::Face(pIndices, pNormalID, pTexID);
// Set active material, if one set
if (NULL != m_pModel->m_pCurrentMaterial)
face->m_pMaterial = m_pModel->m_pCurrentMaterial;
else
face->m_pMaterial = m_pModel->m_pDefaultMaterial;
// Create a default object, if nothing there
if ( NULL == m_pModel->m_pCurrent )
createObject("defaultobject");
// Store the new instance
m_pModel->m_pCurrent->m_Faces.push_back(face);
// Assign face to mesh
if ( NULL == m_pModel->m_pCurrentMesh )
{
m_pModel->m_pCurrentMesh = new ObjFile::Mesh();
m_pModel->m_Meshes.push_back( m_pModel->m_pCurrentMesh );
}
// Store the face
m_pModel->m_pCurrentMesh->m_Faces.push_back( face );
m_pModel->m_pCurrentMesh->m_uiNumIndices += (unsigned int)face->m_pVertices->size();
m_pModel->m_pCurrentMesh->m_uiUVCoordinates[ 0 ] += (unsigned int)face->m_pTexturCoords[0].size();
if(!m_pModel->m_pCurrentMesh->m_hasNormals && hasNormal) {
m_pModel->m_pCurrentMesh->m_hasNormals = true;
}
// Skip the rest of the line
m_DataIt = skipLine<DataArrayIt>( m_DataIt, m_DataItEnd, m_uiLine );
}
