Will there be a another paper or detailed explanation for NDC project

[Harvey-Mei]

Hello, ZHIQIN CHEN
Thank your for your kindly share!
I noticed that the out put of NDC and NMC is total different. For I see the output of NMC is [M,N,K,5] for bool and [M,N,K,51] for float just as explanation in your paper. But in NDC, the out put of float part is [M,N,K,3]. I am not very sure for your encoding for dual countering. May I ask if you have another document for detailed explanation of the NDC project.
It will my appreciation for your responce.

[czq142857]

Hi,

Thanks for asking. I was busy doing a CVPR paper, therefore the progress on this project has been significantly delayed. There will be a paper for NDC (eventually, but I don't know when).

Since the implementation is much much much easier than NMC, I can just explain it here.
Bool part [M,N,K,1] stores the inside/outside sign for each corner vertex. If the input is an SDF grid, then this part could be removed so that the network only needs to predict the float part.
Float part [M,N,K,3] stores the vertex position for each cell.
The meshing is done by looking at each cell edge. If the two vertices on a cell edge do not have the same sign, then create a quad face connecting the four vertices of the four adjacent cells (using the positions in the float part).
See figure below for a 2D example. Please read the original Dual Contouring paper for more details.

Best,
Zhiqin

[Harvey-Mei]

Hi, Zhiqin
Thank you very much for taking the time to answer my questions and for the useful information you provided.
looking forward to seeing your work at the next CVPR.

BR,
Harvey