message: reverse animation support
diff: @@ -164,6 +164,11 @@ void Pose::updateFrame(const Animation::Sequence &s, uint64_t fr) {
  frameB = std::min<uint64_t>(frameB,s.data->numFrames-1);
  }
  + if(s.reverse) {
  + frameA = s.data->numFrames-1-frameA;
  + frameB = s.data->numFrames-1-frameB;
  + }
  +
  auto& d = *s.data;
  const size_t idSize=d.nodeIndex.size();
  if(idSize==0 || d.samples.size()%idSize!=0)
  