void Face::draw( bool front ) {
if( smooth )
glShadeModel( GL_SMOOTH );
else
glShadeModel( GL_FLAT );
if( mtl != NULL ) {
setCurrentMaterial( mtl );
}
if( textureHandle != 0 ) {
glEnable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, textureHandle );
} else {
glDisable( GL_TEXTURE_2D );
}
glBegin( GL_TRIANGLES ); {
(front ? pN.glNormal() : (-1 * pN).glNormal());
if( textureHandle != 0 ) pT.glTexCoord();
p.glVertex();
(front ? qN.glNormal() : (-1 * qN).glNormal());
if( textureHandle != 0 ) qT.glTexCoord();
q.glVertex();
(front ? rN.glNormal() : (-1 * rN).glNormal());
if( textureHandle != 0 ) rT.glTexCoord();
r.glVertex();
}; glEnd();
glDisable( GL_TEXTURE_2D );
}
void updateFile(ObjFile* file, const char* line)
{
// counts the number of groups, objectes, faces, positions, normals,
// texcoords
// TODO: trim [line]
if (line[0] == 'v' && line[1] == ' ')
{
addPosition(file, line);
return;
}
if (line[0] == 'v' && line[1] == 'n' && line[2] == ' ')
{
addNormal(file, line);
return;
}
if (line[0] == 'v' && line[1] == 't' && line[2] == ' ')
{
addTexCoord(file, line);
return;
}
if (line[0] == 'o' && line[1] == ' ')
{
addObject(file, line);
return;
}
if (line[0] == 'g' && line[1] == ' ')
{
addGroup(file, line);
return;
}
if (line[0] == 'f' && line[1] == ' ')
{
addFace(file, line);
return;
}
if (strstr(line, "usemtl") == line)
{
setCurrentMaterial(file, line);
return;
}
}
// Add triangles Fan
GLC_uint GLC_Mesh::addTrianglesFan(GLC_Material* pMaterial, const IndexList& indexList, const int lod, double accuracy)
{
GLC_uint groupId= setCurrentMaterial(pMaterial, lod, accuracy);
Q_ASSERT(m_PrimitiveGroups.value(lod)->contains(groupId));
Q_ASSERT(!indexList.isEmpty());
GLC_uint id= 0;
if (0 == lod)
{
id= m_NextPrimitiveLocalId++;
}
m_MeshData.trianglesAdded(lod, indexList.size() - 2);
m_PrimitiveGroups.value(lod)->value(groupId)->addTrianglesFan(indexList, id);
// Invalid the geometry
m_GeometryIsValid = false;
return id;
}
