'Renderer' object has no attribute 'render_points'

How can I fix this?

```
(base) mona@mona:~/research/3danimals/SMALViewer$ python smal_viewer.py
dict_keys(['f', 'J_regressor', 'kintree_table', 'weights', 'posedirs', 'v_template', 'shapedirs'])
torch.Size([4, 3889])
 Tensor J_regressor shape:  torch.Size([37, 3889])
 Tensor weights shape:  torch.Size([3889, 33])
 Tensor posedirs shape:  torch.Size([3889, 3, 288])
 Tensor v_template shape:  torch.Size([3889, 3])
 Tensor shapedirs shape:  torch.Size([3889, 3, 41])
 Tensor faces shape:  torch.Size([7774, 3])
Traceback (most recent call last):
  File "smal_viewer.py", line 13, in <module>
    main()
  File "smal_viewer.py", line 6, in main
    main_window = pyqt_viewer.MainWindow()
  File "/home/mona/research/3danimals/SMALViewer/pyqt_viewer.py", line 50, in __init__
    self.setup_ui()
  File "/home/mona/research/3danimals/SMALViewer/pyqt_viewer.py", line 219, in setup_ui
    self.update_render()
  File "/home/mona/research/3danimals/SMALViewer/pyqt_viewer.py", line 241, in update_render
    rendered_images, rendered_silhouettes, rendered_joints, verts, joints_3d = self.model_renderer(self.smal_params)
  File "/home/mona/anaconda3/lib/python3.7/site-packages/torch/nn/modules/module.py", line 722, in _call_impl
    result = self.forward(*input, **kwargs)
  File "/home/mona/research/3danimals/SMALViewer/smal/smal3d_renderer.py", line 45, in forward
    rendered_joints = self.renderer.render_points(joints_3d[:, self.smal_info.include_classes])
  File "/home/mona/anaconda3/lib/python3.7/site-packages/torch/nn/modules/module.py", line 772, in __getattr__
    type(self).__name__, name))
torch.nn.modules.module.ModuleAttributeError: 'Renderer' object has no attribute 'render_points'

```



```
$ python
Python 3.7.6 (default, Jan  8 2020, 19:59:22)
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import torch
>>> torch.__version__
'1.6.0'
>>> torch.version.cuda
'10.1'
>>> torch.cuda.is_available()
True


$ lsb_release -a
LSB Version:	core-11.1.0ubuntu2-noarch:security-11.1.0ubuntu2-noarch
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.1 LTS
Release:	20.04
Codename:	focal
```

https://github.com/benjiebob/SMALViewer/issues/4