Function cross

third-party/embreeSrc/common/math/vec2fa.h:265–267

#endif

  __forceinline Vec2fa cross ( const Vec2fa& a ) {
    return Vec2fa(-a.y,a.x);
  }

  __forceinline float  sqr_length ( const Vec2fa& a )                { return dot(a,a); }
  __forceinline float  rcp_length ( const Vec2fa& a )                { return rsqrt(dot(a,a)); }