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salykovaa avatar salykovaa commented on June 16, 2024

Hi Stefan!

It is because I cleaned original NGP code and removed all camera transformations from NeRF convention to NGP convention. Compare these functions with original NGP implementation:

nerf_direction_to_ngp vs. original nerf_direction_to_ngp
nerf_matrix_to_ngp vs. original nerf_matrix_to_ngp
ngp_matrix_to_nerf vs. original ngp_matrix_to_nerf
nerf_ray_to_ngp vs. original nerf_ray_to_ngp

So, extrinsics are expected to be in the opencv format. You can either use original functions and recompile the project, or transform your extrinsics before load to json file. For more information see this discussion.
I hope this solves the problem. If not, please reopen the issue.

from instant-dexnerf.

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