Where I can get the correspondence betweent the texture map and smplx?

[vchoutas]

Where I can get the correspondence betweent the texture map and smplx?

[neonb88]

In the example below I take the vertices faces from SMPLX and save its mesh to an obj file with vertex texture (vt tag).

import numpy as np
import trimesh
import trimesh.exchange

input_path = '/tmp'
output_path = '/tmp'
uv_table = np.load(os.path.join(input_path,'uv_table.npy'))
mesh = trimesh.Trimesh(vertices,faces,visual=trimesh.visual.TextureVisuals(uv=uv_table)
export_obj = trimesh.exchange.export_obj(mesh,include_texture=True)

mesh_filename_path = os.path.join(output_path,'out.obj')
with open(mesh_filename_path,'w') as file_obj:
    trimesh.util.write_encoded(file_obj, export_obj)

In a mesh viewer one can add a texture.png file of that should be mapped correctly for most vertices

This is now "trimesh.exchange.obj" wherever the original commenter wrote "trimesh.exchange"

[ikvision]

In the example below I take the vertices faces from SMPLX and save its mesh to an obj file with vertex texture (vt tag).

import numpy as np
import trimesh
import trimesh.exchange

input_path = '/tmp'
output_path = '/tmp'
uv_table = np.load(os.path.join(input_path,'uv_table.npy'))
mesh = trimesh.Trimesh(vertices,faces,visual=trimesh.visual.TextureVisuals(uv=uv_table)
export_obj = trimesh.exchange.export_obj(mesh,include_texture=True)

mesh_filename_path = os.path.join(output_path,'out.obj')
with open(mesh_filename_path,'w') as file_obj:
    trimesh.util.write_encoded(file_obj, export_obj)

In a mesh viewer one can add a texture.png file of that should be mapped correctly for most vertices

[vchoutas]

@MAOYALI Right now SMPL-X has no texture map. I will update the Readme should one be created.

[quyanqiu]

@fabienbaradel from their project page https://smpl-x.is.tue.mpg.de/

[quyanqiu]

Maybe you need to do it yourself,you may need to use maya or 3dmax to cut UV map your self,the format just like smpl

[ikvision]

I was able to plug the uv_map in CalciferZh/SMPL#5 (comment) into smpl 6890 vertices model and it seems to work fine with textures.
My understanding is that the vertices order of SMPL is constant for many different implementation of SMPL.

[AIdeveloper-oz]

@ikvision How did you do that? Can you explain me the steps and code changes if there are any?

[quyanqiu]

@ikvision interesting，you mean the uv map that being used by the origin smpl model can be correctly adapted by smplx?
Can you show me some result of your smplx rendering result after add some texture image?

[quyanqiu]

@ikvision I dont know whether your code is wrong or my understanding is ambiguous,may be you mean SMPL but not SMPLX,because the uv table adpated from original smpl model is the dimension of 6890,which is the number of vertices of original smpl model,but SMPLX has 10475 vertices,so when I run your code and take vertics and face from SMPLX, python told me array is out of boundary,which could not being used

[ikvision]

@ikvision I dont know whether your code is wrong or my understanding is ambiguous,may be you mean SMPL but not SMPLX,because the uv table adpated from original smpl model is the dimension of 6890,which is the number of vertices of original smpl model,but SMPLX has 10475 vertices,so when I run your code and take vertics and face from SMPLX, python told me array is out of boundary,which could not being used

Indeed I was referring to SMPL model of 6890 used in SMPLX as part of the SPIN project https://github.com/nkolot/SPIN/blob/277892a91e74af004c74457cd294bd102972f9b0/models/smpl.py#L23

[fabienbaradel]

Thanks @ikvision that's very interesting. Do you know where I can find image files of texture?

[ikvision]

@fabienbaradel a simple vertices texture for SMPL can be found in:
facebookresearch/DensePose#116 (comment)
More diverse textures are part of surreal:
https://github.com/gulvarol/surreal/blob/master/download/files/files_smpl_data.txt

[fabienbaradel]

Thanks @ikvision for your answer :)

[quyanqiu]

now smplx support texture map and did have texture coordinate。@fabienbaradel

[fabienbaradel]

Nice, @quyanqiu do you know where I can download the corresponding uv_map for SMPLX?

[hshreeshail]

@fabienbaradel from their project page https://smpl-x.is.tue.mpg.de/

I see the following files for the uv map:
1] a .obj file which contains two texture variables: vt (11313, 2) and ft (20908,3).
2] a png file which contains the uv map.

I have a different png file. How do I get the corresponding ft?

[hshreeshail]

alternatively, given I have a png file with the required texture, how do I add this texture to a mesh and visualize it?

[haiderasad]

alternatively, given I have a png file with the required texture, how do I add this texture to a mesh and visualize it?

@Shreeshail-Hingane found anything on how to create your own image texture?

[hshreeshail]

@haiderasad If you want to create your own texture file (like this file), see this repo: https://github.com/qzane/textured_smplx (though I have not used it personally)

If you already have a .png texture file and want to add this texture to a mesh, you can use the MPI Mesh library (https://github.com/MPI-IS/mesh). The Mesh class of this library has a .set_texture_image() method, to which you can pass the .png texture file as argument, and then use the MeshViewer class to visualize the mesh.

[haiderasad]

I have the texture file ,i only need to know how to get clothed ouput from smplify-x using this texture.png

…

On Wed, 29 Jun 2022 at 2:36 PM, Shreeshail Hingane ***@***.***> wrote: @haiderasad <https://github.com/haiderasad> If you want to create your own texture file (like this file <https://github.com/qzane/textured_smplx/blob/main/data/obj1/texture_smplx.png>), see this repo: https://github.com/qzane/textured_smplx (though I have not used it personally) If you already have a .png texture file and want to add this texture to a mesh, you can use the MPI Mesh library (https://github.com/MPI-IS/mesh). The Mesh class of this library has a .set_texture_image() method, to which you can pass the .png texture file as argument, and then use the MeshViewer class to visualize the mesh. — Reply to this email directly, view it on GitHub <#16 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANFPK327Z5IEKSHYU4FE5M3VRQKIXANCNFSM4JITS6WQ> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[hshreeshail]

@haiderasad If you want to create your own texture file (like this file), see this repo: https://github.com/qzane/textured_smplx (though I have not used it personally)

If you already have a .png texture file and want to add this texture to a mesh, you can use the MPI Mesh library (https://github.com/MPI-IS/mesh). The Mesh class of this library has a .set_texture_image() method, to which you can pass the .png texture file as argument, and then use the MeshViewer class to visualize the mesh.

then do the latter step as mentioned in my answer above.