Fixed a few code style issues, added #ifdef USE_OPENMP

3d-viewer/3d_mesh_model.cpp

@@ -31,6 +31,10 @@
 #include <3d_mesh_model.h>
 #include <boost/geometry/algorithms/area.hpp>
 
+#ifdef USE_OPENMP
+#include <omp.h>
+#endif /* USE_OPENMP */
+
 S3D_MESH::S3D_MESH()
 {
     isPerFaceNormalsComputed = false;
@@ -356,15 +360,17 @@ void S3D_MESH::calcPerPointNormals ()
     m_PerFaceVertexNormals.clear();
 
     // Pre-allocate space for the entire vector of vertex normals so we can do parallel writes
-    m_PerFaceVertexNormals.resize(m_CoordIndex.size());
+    m_PerFaceVertexNormals.resize( m_CoordIndex.size() );
 
     // for each face A in mesh
+    #ifdef USE_OPENMP
     #pragma omp parallel for
+    #endif
     for( unsigned int each_face_A_idx = 0; each_face_A_idx < m_CoordIndex.size(); each_face_A_idx++ )
     {
         // n = face A facet normal
         std::vector< glm::vec3 >& face_A_normals = m_PerFaceVertexNormals[each_face_A_idx];
-        face_A_normals.resize(m_CoordIndex[each_face_A_idx].size());
+        face_A_normals.resize( m_CoordIndex[each_face_A_idx].size() );
 
         // loop through all 3 vertices
         // for each vert in face A