question about depthss

[yu8ri1]

https://github.com/mit-han-lab/bevfusion/blob/531bf67dd56192cf1cff7baf2995312efdba1ea9/mmdet3d/models/vtransforms/base.py#L295C1-L298C39

https://github.com/mit-han-lab/bevfusion/blob/531bf67dd56192cf1cff7baf2995312efdba1ea9/mmdet3d/models/vtransforms/base.py#L92C19-L92C22

I would like to know more about the functionality of these two links: what is entered into the variable dist in the first link, and more about the functionality of the function in the second link.