How to export train result as ply

[Knni9ht]

I want export the train result as a ply file.But the ns-export commend did not work.

[maturk]

It should work.

ns-export gaussian-splat --load-config [path to dn_splatter model config.yml file] --output-dir ./splat/

[maturk]

Did you experience some error?

[Knni9ht]

On the dn-splatter environment,the ns-export gaussian-splat commend didnot do anything.There was nothing happened after I use the commend,just passed,nothing output.

So I switched to gsplat environment. And I used commendns-export gaussian-splat --load-config,but it seemed that the config.yaml was not right.Then I modified the config.yaml from the gsplat training config.yaml.And then it worked.

[Knni9ht]

Do you consider to build a standard export process like gsplat?

[maturk]

What do you mean that the ns-export gaussian-splat did not do anything? Can you please provide more information. The output is generated into a separate file. There is not much output in the actual terminal log, but if you inspect the output folder you will find the splat.ply file there.

e.g. the command ns-export gaussian-splat --load-config path_to_/config.yml --output-dir ./my_output
will generate a new file called ./my_output/splat.ply which is the ply file you want.

[maturk]

Do you consider to build a standard export process like gsplat?

ns-export gaussian-splat already does gaussian splatting export into a .ply file, which is viewable in other applications of viewers.

[Knni9ht]

[maturk]

Here are steps to create a splat.ply file:

1. train a model using ns-train dn-splatter [options]
2. make a note of where the config.yml file is saved after training.
3. run ns-export gaussian-splat --load-config path_to_/config.yml --output-dir ./my_output and it will create a new file called /my_output/splat.ply

[Knni9ht]

just prinnted nothing

[maturk]

just prinnted nothing

Have you checked what is inside the exportPly/20 folder?

[Knni9ht]

just prinnted nothing

Have you checked what is inside the exportPly/20 folder?

yeah,there was an empty directory

[maturk]

This is the expected behaviour:

What does the command ns-export --help or ns-export gaussian-splat --help say? I am wondering if there are some problems with the nerfstudio installation

[Knni9ht]

it was still nothing

[maturk]

Can you please show if nerfstudio is installed:

pip show nerfstudio
pip show dn_splatter

[Knni9ht]

[maturk]

Can you run the command ns-install-cli and then try again. Also does training with dn-splatter work i.e. does ns-train dn-splatter work?

[Knni9ht]

train process worked

[Knni9ht]

the command ns-install-cli did not work because i use windows?

[maturk]

I find it strange that ns-export is not working for you. This is expected output when running the command. I am not sure what is wrong, but I suspect somehow nerfstudio is not completely installed correctly, since the cli scripts are not working on your machine. But you also mentioned that you switched to some other conda environment (gsplat?) and you were able to run the ns-export command? Is my understanding correct?

[Knni9ht]

I find it strange that ns-export is not working for you. This is expected output when running the command. I am not sure what is wrong, but I suspect somehow nerfstudio is not completely installed correctly, since the cli scripts are not working on your machine. But you also mentioned that you switched to some other conda environment (gsplat?) and you were able to run the ns-export command? Is my understanding correct?

I fixed it by nerfstudio-project/nerfstudio#3483 (comment)