message: Fix compile error on Windows (making types compatible)
diff: @@ -92,7 +92,7 @@ template <typename VALUE_T>
  void AnimationTrack<VALUE_T>::update(const float time)
  {
  updateIndex(time);
  - const size_t idx0 = std::max(index, 0l);
  + const ssize_t idx0 = std::max(index, ssize_t(0));
  const bool isCubic = interpolation == InterpolationMode::CUBIC;
  auto val = values[isCubic ? idx0 * 3 + 1 : idx0];
  