add resolvePath() to find files rel to .obj path

WFObj.cc

@@ -341,7 +341,7 @@ WFObj::VertexRef WFObj::readVertexRef(const std::string ref)
 void WFObj::loadMaterial(const std::string & name)
 {
     Buffer buff;
-    string path = (name[0] != '/') ? basePath(m_path) + name : name;
+    string path = resolvePath(name);
     if (!m_loadfile(path.c_str(), buff))
     {
         cerr << "WFObj: error: couldn't open material file '" << path << "'"
@@ -422,7 +422,7 @@ void WFObj::loadMaterial(const std::string & name)
         }
         else if (tokens[0] == "map_Kd")
         {
-            m_materials[mat_name].texture = loadTexture(tokens[1]);
+            m_materials[mat_name].texture = loadTexture(resolvePath(tokens[1]));
             if (m_materials[mat_name].texture != 0)
                 m_materials[mat_name].flags |= Material::TEXTURE_BIT;
         }
@@ -571,6 +571,11 @@ GLuint WFObj::loadTexture(const std::string & path)
     return id;
 }
 
+string WFObj::resolvePath(const string & name)
+{
+    return (name[0] != '/') ? basePath(m_path) + name : name;
+}
+
 bool WFObj::VertexRef::operator<(const VertexRef & other) const
 {
     if (vertex != other.vertex)

WFObj.h

@@ -116,6 +116,7 @@ protected:
     void loadMaterial(const std::string & name);
     bool buildVBO();
     GLuint loadTexture(const std::string & path);
+    std::string resolvePath(const std::string & name);
 
     /* variables */
     std::vector<Vertex> m_vertices[VERTEX_TYPES];