Unable to save texture: Missing plugin for file format

[ccdejene]

Description

When attempting to save a 3D model with textures, MeshLab fails to save texture_0 etc. The error message indicates that the current pymeshlab version lacks a plugin to save the file format.

Error Message

texture_0 cannot be saved. Your MeshLab version has not plugin to save file format.

Environment

• MeshLab Version: latest
• Operating System: Linux

Steps to Reproduce

1. Load a 3D model with textures into pymeshlab
2. Save GLB to OBJ
3. Attempt to save or export the model with textures

        ms = pymeshlab.MeshSet()
        ms.load_new_mesh(input_file)
        
        # Save as OBJ with explicit format specification
        ms.apply_filter('generate_by_merging_visible_meshes',mergevisible=True)
        ms.save_current_mesh(output_file, save_textures=True, save_vertex_color=True)
        ``

[alemuntoni]

Could you please provide the input mesh you are loading?

[ccdejene]

The input file is confidential sadly, and i can't share it. Could it be because the GLB has ktx2 textures which are not supported? in Meshlab itself its working.