Function zero_fix

third-party/embreeSrc/common/math/vec2fa.h:151–153

  }

  __forceinline Vec2fa zero_fix(const Vec2fa& a) {
    return blendv_ps(a, _mm_set1_ps(min_rcp_input), _mm_cmplt_ps (abs(a).m128, _mm_set1_ps(min_rcp_input)));
  }
  __forceinline Vec2fa rcp_safe(const Vec2fa& a) {
    return rcp(zero_fix(a));
  }