how to get ground truth of Normal ??

[ylab604]

how to get ground truth of Normal ??

[lingtengqiu]

U can use pyrender render or pytorch3d. when u render your normal map, u need to care of normal map directions. More specifically, when U rotate your mesh, your normal map also need to rotate degree the same as mesh. the normal map value is texture value when you render normal map.

[ylab604]

Thank you for your answer. Can't I use the data generation in your Github?

[lingtengqiu]

Please bash the script

bash ./scripts/generate.sh

[ylab604]

I extracted depth by modifying your code a little. Thank you. I used normalmap as it is. Can't I use it as it is?

[lingtengqiu]

I suggest u check whether the rotate normal map is right(especially for back view). Generally, the left side is closed to blue while right side is the red-category.

[ylab604]

Thank you so much for your kind explanation. Could you please tell me how to do it? I did normalmap rendering of the thuman2.0 dataset with your code, but it seems that i was wrong. Which part of the code should I fix?

[ylab604]

here is my result on thuman2.0 dataset

[lanlan17]

when i bash the script bash ./scripts/generate.sh there is a error ImportError: cannot import name 'mesh_core_cython' from 'engineer.render.face3d.mesh.cython' (unknown location) i don't know how to solve the problem could you give me some suggestion

[ylab604]

sorry for late you need to set face3d go to https://github.com/YadiraF/face3d and follow read me for set engineer.render.face3d.mesh.cython

[lanlan17]

recently i also use Thuman2.0 dataset to conduct experiments. when i render the normal. the error is "mesh is non-watertight for contained point query!" have you encountered the similar problem?

[ylab604]

hmm... I didn't get that error, sorry for not being helpful. In my case, I tried it first with Render People, then proceeded. I recommend that you try Render People first.

[lanlan17]

thank you for your reply! i have tried render people dataset! It worked. but Thuman2.0 has some problems.

[ylab604]

If you write down the error in detail, I might be able to help, so please write in detail.

[lanlan17]

like this,it doesn't generate normal map

[lanlan17]

i have solved the problem the reason is that i accidentally commented out part of the code earlier thank you again for your patience

[ylab604]

Great! Have a good day!

[kings-rgb]

i have solved the problem the reason is that i accidentally commented out part of the code earlier thank you again for your patience

hi, I have the same problem, but I donot change the code. where did you modify the code？

[lanlan17]

i have solved the problem the reason is that i accidentally commented out part of the code earlier thank you again for your patience

hi, I have the same problem, but I donot change the code. where did you modify the code？

maybe the warning is related to your datasets, but it will not prevent you to generate the normal images

[yangqinhui0423]

I extracted depth by modifying your code a little. Thank you. I used normalmap as it is. Can't I use it as it is?

Hey, could you tell me how to generate depth map? Many thanks.

[ylab604]

build the generate depth code refer to generate normal code

[yangqinhui0423]

build the generate depth code refer to generate normal code

Thanks for your quick answer! Does it mean refer to /tools/generate_normal_map.py in the project?

[ylab604]

yes, I can't remember fully(because almost 2years ago). I think you would change the face3d render part (c++ part) normal 2 depth use depth formula