model : { NAME: PointTransformer, trans_dim: 384, depth: 12, drop_path_rate: 0.1, cls_dim: 40, num_heads: 6, group_size: 32, num_group: 512, encoder_dims: 256, point_dims: 3, projection_hidden_layer: 2, projection_hidden_dim: [1024, 2048], use_max_pool: false } npoints: 8192