I got a problem when generating the output mesh

[citystrawman]

Hi, I am studying SuGar and I got a problem when generating the output mesh.
When I execute the command python train.py -s <path to COLMAP dataset> -c <path to the Gaussian Splatting checkpoint> -r <"density" or "sdf">, at first everything goes well, but when the code executes at line 172, Extract mesh and texture from refined SuGaR, it pops out error messages: it seems that the mesh_path property in refined_args is not properly created(I use print(refined_args) to print the args out ): I have checked the issues and some of the answers said that it may be caused by the operating system separator (\ or /), I tried using double quotes for all my path: but using double qoutes or not pops out the same error messages.

I appreciate if anyone could help me solve this issue. Thanks!

[mohit-choithwani]

Hi there, I've encountered the same error. Has anyone found a solution?

[silkmeloni]

I've encountered the same error. Have you solved it?

[silkmeloni]

I guess the code is written for Linux, but I run in win10. you can see the filename is "sugarmesh_D:" but “:” is not allowed in windows file system. But I don't know how to correct it.

[kitmallet]

You are able to run the whole process step by step. Starting with: Python Gaussian_splatting/convert.py Python gaussian_splatting/train.py Python train_coarse_density.py Python extract_mesh.py Python train_refined.py And finally: Python extract_refined_mesh_with_texture.py It should work and you can verify as the steps get done by checking the ply after extract_mesh which produces a .ply file. Goodluck! Kit

[citystrawman]

I guess the code is written for Linux, but I run in win10. you can see the filename is "sugarmesh_D:" but “:” is not allowed in windows file system. But I don't know how to correct it.

Hi, I use windows and I tried to use pycharm and in pycharm I open a terminal and put the command in terminal. I tried many ways and one way that work is to use double backslash like this: but somehow it is weired that in some of the command you need to specify double quote (as for me, the .\gaussian_splatting\train.py)to the directory, but some of the command(as for me, the .\train.py) you should not specify double quote.

[citystrawman]

Hi there, I've encountered the same error. Has anyone found a solution?

see my above answer.

[citystrawman]

You are able to run the whole process step by step. Starting with: Python Gaussian_splatting/convert.py Python gaussian_splatting/train.py Python train_coarse_density.py Python extract_mesh.py Python train_refined.py And finally: Python extract_refined_mesh_with_texture.py It should work and you can verify as the steps get done by checking the ply after extract_mesh which produces a .ply file. Goodluck! Kit

Thanks Kit. I've encountered another issue that when running the last step, refined_mesh_path = extract_mesh_and_texture_from_refined_sugar(refined_mesh_args), I got a error saying that Read PLY failed: unable to open file .\output\coarse_mesh\sugarmesh_xxxxxxxx.ply, I can see that this directory is sugar_mesh_path in refined_mesh.py, but from refined_mesh.py I could only see that sugar_mesh_path string is created, but the ply is not created, then the code starts to read from sugar_mesh_path : o3d_mesh = o3d.io.read_triangle_mesh(sugar_mesh_path) I dont quite understand the logic here and is it a bug?

[kitmallet]

Hey @citystrawman , in the second last step as it seems to not be creating an output folder. Try adding "-m mesh" to give it a destination folder. After make sure it is created and make sure when you run the last step that the model (-m) correstonds to this path: python train_refined.py -s data/gun -c output/gun/ -m output/coarse_mesh/gun/sugarmesh_3Dgs7000_sdfestim1_sdfnorm1_level05_decim4000000.ply -o mesh

[mohit-choithwani]

You are able to run the whole process step by step. Starting with: Python Gaussian_splatting/convert.py Python gaussian_splatting/train.py Python train_coarse_density.py Python extract_mesh.py Python train_refined.py And finally: Python extract_refined_mesh_with_texture.py It should work and you can verify as the steps get done by checking the ply after extract_mesh which produces a .ply file. Goodluck! Kit

Thanks Kit!!! it is working now.

[kitmallet]

@mohit-choithwani you are welcome. you may need to add an output path for train_refined.py. Here is an example: python train_refined.py -s data/"name" -c output/"name"/ -m output/coarse_mesh/"name"/sugarmesh_3Dgs7000_sdfestim1_sdfnorm1_level05_decim4000000.ply -o mesh If you notice I added "-o mesh". Otherwise, it won't work. I don't have time to make changes myself in the python scripts but it is a simple resolution. Also a very good reason why I do this step by step is that I can edit the ply files throughout the process. I edit out gaussian splates just before running train_coarse_density.py. I do this in Blender with the gaussian splatting add on. I also edit the ply file just before doing train_refined.py in Meshlab. This will help create a much better final result!! Good luck, Kit