text: #pragma once
  
  #include <xmd/types/vec3.h>
  #include <xmd/types/scalar.h>
  
  namespace xmd {
      class reset_thread_vf {
      public:
          span<vec3r> thread_F;
          real *thread_V;
  
  
  
      public:
          void operator()() const;
      };
  }