samxuxiang / hnc-cad Goto Github PK

Thank you for your amazing work. When visualizing sample results, the following error appears. Is it possible to identify the cause? Also, could you provide the version of pythonocc?

##### 3D rendering pipe initialisation #####
Display3d class initialization starting ...
  0%|                                                                             | 0/730 [00:00<?, ?it/s]
Traceback (most recent call last):
  File "/media/data/hnc-cad/gen/cad_img.py", line 72, in <module>
    main()
  File "/media/data/hnc-cad/gen/cad_img.py", line 68, in main
    render(shape, output_path.joinpath(fn.stem + ".png"), args.width, args.height)
  File "/media/data/hnc-cad/gen/cad_img.py", line 15, in render
    viewer = Viewer3d()
  File "/home/.conda/envs/pyoccenv/lib/python3.9/site-packages/OCC/Display/OCCViewer.py", line 145, in __init__
    Display3d.__init__(self)
  File "/home/.conda/envs/pyoccenv/lib/python3.9/site-packages/OCC/Core/Visualization.py", line 180, in __init__
    _Visualization.Display3d_swiginit(self, _Visualization.new_Display3d())
RuntimeError: Aspect_DisplayConnectionDefinitionErrorCan not connect to the server "" raised from method Display3d of class Display3d

  File "/Users/Desktop/Code/gpus/hnc-cad/gen/cad_img.py", line 72, in <module>
    main()
  File "/Users/Desktop/Code/gpus/hnc-cad/gen/cad_img.py", line 68, in main
    render(shape, output_path.joinpath(fn.stem + ".png"), args.width, args.height)
  File "/Users/Desktop/Code/gpus/hnc-cad/gen/cad_img.py", line 16, in render
    viewer.Create(phong_shading=True, create_default_lights=True)
  File "/Users/miniconda3/envs/pyoccenv/lib/python3.9/site-packages/OCC/Display/OCCViewer.py", line 216, in Create
    self.InitOffscreen(640, 480)
  File "/Users/miniconda3/envs/pyoccenv/lib/python3.9/site-packages/OCC/Core/Visualization.py", line 215, in InitOffscreen
    return _Visualization.Display3d_InitOffscreen(self, size_x, size_y)
RuntimeError: Aspect_WindowDefinitionErrorCocoa application should be instantiated before window raised from method InitOffscreen of class Display3d

We are very interested in the CAD autocomplete you have developed.
But we don't want to retrain the model in the short term.
So could you provide a conditional pre-trained model?
Thank you again, and sorry for the trouble.

I don't understand how we're supposed to sample conditionally from our own onshape model, even with a trained conditional generator.

I tried to use it to complete my onshape creations, following the procedure from skexgen:

• I first download the json file with DeepCAD onshape parser
• transformed the json files into obj files and normalize then with your SkexGen procedure.
• finally, I applied the data_process/convert.py file from this repo (with format 'model').

The problem comes from the fact that to be used, the data must have all its solid_uid, profile_uids and loop_uids in the codebook. From what I could understand, the solid_uid is just the order in which the model appears in the DeepCAD dataset and the others uids derive directly from it.

I tried to force the uids to be contained in the codebooks but obviously the results are not great even with a mid-trained model (~125 epochs).

What is the correct procedure to complete our own OnShape models? I'd be very interested in knowing if such a procedure exists.

THANKS for your contribution！GREAT work~
But when i run the code below

sh scripts/codebook.sh

something issue occured

how can i fix it ?

Hi, Sam.

Fantastic work on CAD conditional Generation!

I just wonder if i train the model using DistributedDataParallel, will the codebook on each GPU remain the same? I tried to use your update code on multiple GPUs using DistributedDataParallel, but it seems that the number of updated codes on each GPU is not the same when I uncomment the print code.

I know the training data will be shuffled across GPUs during training, but such reinitialization scheme made me doubt whether the codebook will remain the same after several epochs.

Worse still, when I asked New Bing about whether the codebook will remain the same after backward of each batch. New Bing tells me No.....

Now I really have no idea about how the reinitialization scheme and the codebook works on DDP.

Any idea helps. And, happy Moon Festival!

Weijian.