Questions about the classification network architecture

Hi, 

In your released model for classification, the first six convolution layers are OctreeConvolutions, while the last four are cudnn.VolumetricConvolutions. Why don't you set all convolutions as OctreeConvolutions?

I am also wondering if you are willing to release the exact model for semantic 3D point cloud labelling. Since I am very curious how it looks like.

Thanks very much!