Debug problem with render_video.py:

[charmingmoe]

Debug problem with render_video.py:

When I try to run render_video.py on pycharm, it produces the following error:

D:\NeRF\mipnerf\mipnerf_pl-dev> python render_video.py --ckpt results/ckpt/lego/multi-epoch=35-step=298835.ckpt --out_dir video --scale 4
Traceback (most recent call last):
File "D:\NeRF\mipnerf\mipnerf_pl-dev\render_video.py", line 197, in
run_render(args)
File "D:\NeRF\mipnerf\mipnerf_pl-dev\render_video.py", line 139, in run_render
_, (f_rgb, distance, acc) = model(batch_rays, False, args.white_bkgd)
^^^^^^^^^^^^^^^^^^^^^^
ValueError: too many values to unpack (expected 3)

I have not made any changes to the code. Is there any solution, please

[Ryan2ky]

I have met the same error when I run eval.py and render_video.py. The problem is due to the fact that the second term in the output of the model is a list of 5-tuples, which we can see on the line 246 in the file mip_nerf.py, as following:

ret.append((comp_rgb, distance, acc, weights, t_samples))

But, on the line 179 (ret: list, [*(rgb, distance, acc)]) we know it should return a list of 3-tuples, and we expected 3, too.
In order to avoid other code using this module from being affected, I modified the code at the calling point(line 61 in eval.py and line 139 in render_video.py) to the following:

_, (f_rgb, distance, acc, _, _) = model(batch_rays, False, args.white_bkgd)