How to convert the provided poses in traj_w_c.txt to the transforms.json used in Nerfstudio?

[ZuoJiaxing]

I follow nerfstudio to convert the provided poses to nerfstudio format with the following:
c2w = read_poses_c2w[idx].reshape((4,4))
# Convert from COLMAP's camera coordinate system to ours
c2w[0:3, 1:3] *= -1
c2w = c2w[np.array([1, 0, 2, 3]), :]
c2w[2, :] *= -1

However, it does not work for nerfstudio. Can you give some hints?

[stavyadatta]

Hey @ZuoJiaxing , where did you get the "traj_w_c.txt" files in replica dataset?