text: #pragma once
  #ifndef _RTL_DEPTHMATERIAL_H_
  #define _RTL_DEPTHMATERIAL_H_
  
  #include <rts/IMaterial.h>
  
  namespace rtl {
  
  class DepthMaterial: public rts::IMaterial
  {
  public:
  	virtual void shade( rts::RTstate& state );
  };
  
  } // namespace rtl
  
  #endif // _RTL_HEADLIGHT_H_
  