Meshes are empty - Githubissues

mlpc-ucsd / BDM

(CVPR 2024) Bayesian Diffusion Models for 3D Shape Reconstruction

https://mlpc-ucsd.github.io/BDM/

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Meshes are empty #1

Open Wangfeng66999 opened 1 week ago

Wangfeng66999 commented 1 week ago

Hi @xXuHaiyang, thanks for open sourcing your great work! I ran into a problem while running "preprocess_pix3d.py", can you help me?

Found 3839 samples for category chair Using 3839 samples for all 0%| | 1/3839 [00:00<03:18, 19.30it/s] Traceback (most recent call last): File "/home/robot/Project/BDM/experiments/data/Pix3D/preprocess_pix3d.py", line 98, in dataset[i] File "/home/robot/Project/BDM/experiments/data/Pix3D/preprocess_pix3d.py", line 63, in getitem pointcloud = sample_points_from_meshes(mesh, self.sample_size).squeeze() File "/home/robot/miniconda3/envs/point/lib/python3.9/site-packages/pytorch3d/ops/sample_points_from_meshes.py", line 65, in sample_points_from_meshes raise ValueError("Meshes are empty.") ValueError: Meshes are empty.

xXuHaiyang commented 1 week ago

Hi, thanks for your interest!

Please check if the mesh here returns a valid result. I also recommend verifying the related variables, such as sample and self.data. If everything is correct, you should get results similar to the image below:

Additionally, please ensure that the json_file here is functioning correctly.

Wangfeng66999 commented 1 week ago

Hi, I followed your debugging process, and when I print(sample):