do not call m_loadTexture if it is null, retabbed

git-svn-id: svn://anubis/misc/wfobj@42 bd8a9e45-a331-0410-811e-c64571078777

WFObj.cc

@@ -573,6 +573,8 @@ void WFMtl::renderBegin(const string & mtlname)
         {
             /* TODO: figure out how i want to load the texture */
             if (stmts[i].size() == 2)
+            {
+                if (m_loadTexture != NULL)
                 {
                     GLuint tex = m_loadTexture( (basePath(m_fileName) +
                                                  stmts[i][1]).c_str() );
@@ -588,6 +590,7 @@ void WFMtl::renderBegin(const string & mtlname)
                 }
             }
         }
+    }
 
     if (didSomething)
     {