kakaobrain / nerf-factory

An awesome PyTorch NeRF library
https://kakaobrain.github.io/NeRF-Factory
Apache License 2.0
1.27k stars 107 forks source link

question about mipnerf360 pose #37

Open yuemingPAN opened 1 year ago

yuemingPAN commented 1 year ago

Thank you for your excellent work about the NeRF factory! The code is functioning well, and I have some questions regarding the pose processing in Mip-NeRF 360. I was hoping you could help me better understand it. Thank you very much! I would like to inquire about the purpose of this line of code,https://github.com/kakaobrain/nerf-factory/blob/ce06663abe385c5cbe85fddbca8b9b5ace80dbee/src/data/data_util/nerf_360_v2.py#L364 which appears to reverse the first column of the pose matrix and swap its order with the second column, but I am not sure the purpose of this transformation.