message: Those can be make constexpr
diff: @@ -67,8 +67,8 @@ struct packet_size<simd::float16>
  template <typename T>
  struct expand_pixel
  {
  - VSNRAY_FUNC inline T x(int x) { return T(x); }
  - VSNRAY_FUNC inline T y(int y) { return T(y); }
  + VSNRAY_FUNC inline constexpr T x(int x) { return T(x); }
  + VSNRAY_FUNC inline constexpr T y(int y) { return T(y); }
  };
  template <>
  