Weird export result

[Charley-xiao]

I trained on the default dataset poster and obtained a psnr of ~20, which is not really bad. But when I exported the mesh, it looks weird:

I tried adjusting bounding box, but it didn't really work.

Here's my command:

ns-export poisson --load-config outputs/poster/nerfacto/2025-01-26_000037/config.yml --output-dir exports/mesh_v4/ --target-num-faces 50000 --num-pixels-per-side 2048 --normal-method open3d --num-points 1000000 --remove-outliers True --use-bounding-box True --bounding-box-min -0.35 -0.25 -0.25 --bounding-box-max 0.15 0.25 0.25

Here's a screenshot from nerfstudio:

[Bohao0214]

I experienced the same issue. Did you manage to solve it? I downgraded nerfstudio to version 1.0 (pip install nerfstudio==1.0) and COLMAP to version 3.8 (conda install colmap==3.8). After re-running ns-process and ns-train, the ns-export poisson command worked correctly.

[Charley-xiao]

I experienced the same issue. Did you manage to solve it? I downgraded nerfstudio to version 1.0 (pip install nerfstudio==1.0) and COLMAP to version 3.8 (conda install colmap==3.8). After re-running ns-process and ns-train, the ns-export poisson command worked correctly.

Yes, downgrading works. I think they're still working on fixing the export result in the newest version of nerfstudio.

[AntonioMacaronio]

Does this issue still persist with the latest main version of nerfstudio? I've made a fix to the export result on the main of nerfstudio

[Toernblom]

Does this issue still persist with the latest main version of nerfstudio? I've made a fix to the export result on the main of nerfstudio

I installed nerfstudio for the first time today through pip and got the same result as above. Do i need to build from source to get that latest version?

[AntonioMacaronio]

@Toernblom Sorry for the confusion, but I believe the current fix to this is located here. The weird export result is due to a naming error with the config variables, so you'd have to check out the latest commit in that PR and build that with pip install -e . I believe that should resolve the error in this thread

[HeaIn]

As mentioned in the PR, try using obb_center, obb_rotation, obb_scale parameters instead. For example:

ns-export poisson --load-config outputs/poster/nerfacto/2025-01-26_000037/config.yml --output-dir exports/mesh_v4/ --target-num-faces 50000 --num-pixels-per-side 2048 --normal-method open3d --num-points 1000000 --remove-outliers True --obb_center 0 0 0 --obb_rotation 0 0 0 --obb_scale 1.0 1.0 1.0

Training poster dataset with nerfacto and exporting mesh with the command above will look like this.

[gaoyuqiang]

This issue still persist with the latest main version of nerfstudio.
can anyone help me? I’ve already spent a lot of time trying to solve this issue. But It still doesn't work, even after I downgraded to version 1.0.

[HeaIn]

This issue still persist with the latest main version of nerfstudio. can anyone help me? I’ve already spent a lot of time trying to solve this issue. But It still doesn't work, even after I downgraded to version 1.0.

Can you share the command you used to run the code?

[gaoyuqiang]

This issue still persist with the latest main version of nerfstudio. can anyone help me? I’ve already spent a lot of time trying to solve this issue. But It still doesn't work, even after I downgraded to version 1.0.

Can you share the command you used to run the code?

The training dataset is my own data.

Now my nerfsutdio is version 1.0 (colmap 3.8). train command: ns-train nerfacto --pipeline.model.predict-normals True --data /root/autodl-tmp/out4 export mesh command: ns-export poisson --load-config outputs/out4/nerfacto/2025-05-09_151502/config.yml --output-dir exports/mesh2/ --target-num-faces 50000 --num-pixels-per-side 2048 --num-points 1000000 --remove-outliers True --normal-method open3d --use_bounding_box False --obb_center 0.0000000000 0.0000000000 0.0000000000 --obb_rotation 0.0000000000 0.0000000000 0.0000000000 --obb_scale 1.0000000000 1.0000000000 1.0000000000

If nerfsutdio is version 1.1.5 (colmap 3.8). train command: ns-train nerfacto --pipeline.model.predict-normals True --data /root/autodl-tmp/out2 export mesh command: ns-export poisson --load-config outputs/out2/nerfacto/2025-04-24_170555/config.yml --output-dir outputs/result6 --target-num-faces 15000 --num-pixels-per-side 2048 --num-points 250000 --remove-outliers True --normal-method open3d --obb_center -0.2400000000 -0.4400000000 -0.5300000000 --obb_rotation 0.0000000000 -0.0000000000 -0.3778622040 --obb_scale 0.7400000095 1.1299999952 1.2999999523 Whether it's Nerfstudio 1.0 or 1.1.5（install from lastest code) , neither of them works. What should I do?

[gaoyuqiang]

The problem is still exist. Who can help me?

[gaoyuqiang]

ns-process-data video --data /root/autodl-fs/input.mov --output-dir outputs/data10 --num-frames-target 220 ns-train nerfacto --pipeline.model.predict-normals True --data outputs/data10 ns-export poisson --load-config outputs/data10/nerfacto/2025-08-06_173011/config.yml --output-dir outputs/data10

[gaoyuqiang]

@HeaIn can you help me ?

[mariapatni]

I am also having this issue. I've tried reinstalling the latest version of nerfstudio and reverting to older versions but still having trouble. @HeaIn @gaoyuqiang @AntonioMacaronio has anyone solved this problem?

[HeaIn]

@mariapatni Please refer to Issue #3701. The solution and detailed parameters are described there.