What is the purpose of the `25000000`?

[whu-lyh]

Hi, I am confused that what is the meaning of 25000000?

  if(ret_pts)
	point_list = torch::full({25000000}, 0, means3D.options().dtype(torch::kInt32)); 
  else
  	point_list = torch::full({0}, 0, means3D.options().dtype(torch::kInt32)); 

The oom error occurs at here.

[whu-lyh]

In outdoor scene, the OOM error occurs, which means that this method is not suited well at the outdoor scene?

[sairisheek]

This is just pre-allocation of some space to return points selected by the floater pruning operator. It is set to a max value of that, if you don't expect a lot of floaters you can probably decrease it and get away with it.