Function zero_fix

third-party/embreeSrc/common/math/vec3.h:76–81

  template<typename T> __forceinline Vec3<T> sqrt      ( const Vec3<T>& a ) { return Vec3<T>(sqrt (a.x), sqrt (a.y), sqrt (a.z)); }

  template<typename T> __forceinline Vec3<T> zero_fix( const Vec3<T>& a )
  {
    return Vec3<T>(select(abs(a.x)<min_rcp_input,T(min_rcp_input),a.x),
                   select(abs(a.y)<min_rcp_input,T(min_rcp_input),a.y),
                   select(abs(a.z)<min_rcp_input,T(min_rcp_input),a.z));
  }
  template<typename T> __forceinline Vec3<T> rcp_safe(const Vec3<T>& a) { return rcp(zero_fix(a)); }

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