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stevenygd / PointFlow

PointFlow : 3D Point Cloud Generation with Continuous Normalizing Flows
https://www.guandaoyang.com/PointFlow/
MIT License
720 stars 101 forks source link

How to generate ShapeNetCore.v2.PC15k file? #42

Closed dqj5182 closed 1 month ago

dqj5182 commented 6 months ago

I can see that the file can be downloaded from the Google Drive link provided in this repository. However, I wish to know how you generated such file. Many of the ShapeNetCore meshes are 1) not watertight and 2) contains reversed mesh faces. I wish to know 1) how you defined surface from such noisy meshes and 2) how you sampled point from the surface?

stevenygd commented 1 month ago

Point sampling from mesh can be done by most mesh libraries (we just sample uniformly). For inside/outside queries, you could shot rays from the points to figure it out.