About the "imtwoBounce_%d.h5"

Hello,

Thank you for releasing the codes! I have a question about the data structure of "imtwoBounce_%d.h5".

In the dataloader module, the "imtwoBounce_%d.h5" file is parsed as two normal maps, two depth maps, and two segmentation masks. Why the number of segmentation mask is two? I guess the front and back surfaces should share the same mask.

Thank you!