root/include/utility/globals.hpp

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INCLUDED FROM


   1 #ifndef _GLOBALS_HPP_
   2 #define _GLOBALS_HPP_
   3 
   4 #include "mesh/CylinderMesh.hpp"
   5 #include "mesh/SphereMesh.hpp"
   6 
   7 /* Global variables should be avoided for they increase program’s complexity immensely and because their values can be changed by any function that is called. But it is a necessity in this case.
   8  * CylinderGeometry and SphereGeometry implement a caching scheme which is effective iff there is one instance of these objects. Hence they are defined as global variables.
   9  * Another approach would be to define these as singleton classes but that is mostly frowned upon and does not provide us any benefit in comparison to declaring global variables.
  10  */
  11 
  12 extern CylinderMesh cylinder;
  13 extern SphereMesh   sphere;
  14 
  15     // light -> setAmbient( osg::);
  16     // light -> setDiffuse( osg::);
  17     // light -> setSpecular( osg::);
  18 
  19 
  20 
  21 #endif /* _GLOBALS_HPP_ */

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