dummy.png doesn't exists

[datonefaridze]

Hello, i am trying to bake the mesh

def bake_obj(in_path, out_path):
    ms = ml.MeshSet()
    ms.load_new_mesh(in_path)

    # Bake texture colors into per-vertex colors (noop if already per-vertex)
    ms.compute_color_from_texture_per_vertex()

    # Scale the mesh
    S = 10.0   # <- use 4.0 for 4x
    ms.apply_filter(
        'compute_matrix_from_scaling_or_normalization',
        axisx=float(S),            # with uniformflag=True, X value is used for all axes
        uniformflag=True,          # same scale on X/Y/Z
        scalecenter='barycenter',  # scale around mesh centroid
        freeze=True                # actually write into vertex positions
    )
    ms.apply_filter('meshing_poly_to_tri')

    # ---- CLEANUP ----
    ms.apply_filter('meshing_remove_duplicate_faces')
    ms.apply_filter('meshing_remove_duplicate_vertices')
    P = getattr(ml, "PercentageValue", None) or getattr(ml, "Percentage", None)
    ms.apply_filter('meshing_merge_close_vertices', threshold=P(10))  # ≈0.1% of bbox diagonal
    ms.apply_filter('meshing_remove_unreferenced_vertices')
    ms.apply_filter('meshing_remove_null_faces')  # zero-area

    # ---- REPAIR TOPOLOGY ----
    # 1) Fix edges that are shared by >2 faces
    ms.apply_filter('meshing_repair_non_manifold_edges', method='Split Vertices')  # or 'Remove Faces'
    # 2) Fix non-manifold vertices (cone-at-apex, etc.)
    ms.apply_filter('meshing_repair_non_manifold_vertices', vertdispratio=0.0)
    # 3) Seal small openings
    ms.apply_filter('meshing_close_holes', maxholesize=100)

    # Get geometric measures
    measures = ms.get_geometric_measures()  # returns a dict
    print("mesh_volume:", measures.get('mesh_volume'))
    print("surface_area:", measures.get('surface_area'))

    # Get current mesh data with original (non-quantized) colors
    m = ms.current_mesh()
    V = m.vertex_matrix()       # (N,3)
    F = m.face_matrix()         # (M,3)
    C = m.vertex_color_matrix() # (N,4) floats in [0,1] RGBA

    # Build a new mesh with same geometry and original vertex colors
    m_output = ml.Mesh(vertex_matrix=V, face_matrix=F, v_color_matrix=C)
    ms_output = ml.MeshSet()
    ms_output.add_mesh(m_output, "output")

    # Save with vertex colors, without MTL file
    ms_output.save_current_mesh(out_path, save_vertex_color=True, save_wedge_texcoord=False)
    print("wrote", out_path)

but i am getting this error:

---------------------------------------------------------------------------
PyMeshLabException                        Traceback (most recent call last)
Cell In[1], line 64
     62 in_path  = "/home/dato/src/my_projects/Business/customToys/triposg_webapp/output.obj"
     63 out_path = '/home/dato/src/my_projects/Business/customToys/triposg_webapp/test.obj'
---> 64 bake_obj(in_path, out_path)

Cell In[1], line 10, in bake_obj(in_path, out_path)
      7 ms.load_new_mesh(in_path)
      9 # Bake texture colors into per-vertex colors (noop if already per-vertex)
---> 10 ms.compute_color_from_texture_per_vertex()
     12 # Scale the mesh
     13 S = 10.0   # <- use 4.0 for 4x

File ~/anaconda3/envs/ML/lib/python3.10/site-packages/pymeshlab/__init__.py:41, in bind_function.<locals>.filter_function(self, **kwargs)
     40 def filter_function(self, **kwargs):  # Have to add self since this will become a method
---> 41     res_dict = self.apply_filter(name, **kwargs)
     42     if bool(res_dict):  # return the dictionary only if it is not empty
     43         return res_dict

PyMeshLabException: Failed to apply filter: compute_color_from_texture_per_vertex
Details: Source texture "/home/dato/src/my_projects/Business/customToys/triposg_webapp/dummy.png" doesn't exists

my mtl file:

# Blender 4.0.2 MTL File: 'None'
# www.blender.org

newmtl BODY
Ks 0.500000 0.500000 0.500000
Ke 0.000000 0.000000 0.000000
Ni 1.500000
d 1.000000
illum 2
Pr 1.000000
Pm 0.000000
Ps 0.000000
Pc 0.000000
Pcr 0.030000
aniso 0.000000
anisor 0.000000
map_Kd BODY_DIFUSE.jpg

newmtl DRESS
Ks 0.500000 0.500000 0.500000
Ke 0.000000 0.000000 0.000000
Ni 1.500000
d 1.000000
illum 2
Pr 1.000000
Pm 0.000000
Ps 0.000000
Pc 0.000000
Pcr 0.030000
aniso 0.000000
anisor 0.000000
map_Kd DRESS_DIFUSE.jpg

newmtl HEAD
Ks 0.500000 0.500000 0.500000
Ke 0.000000 0.000000 0.000000
Ni 1.500000
d 1.000000
illum 2
Pr 1.000000
Pm 0.000000
Ps 0.000000
Pc 0.000000
Pcr 0.030000
aniso 0.000000
anisor 0.000000
map_Kd HEAD_DIFUSE.jpg

newmtl NEEDLE
Ks 0.500000 0.500000 0.500000
Ke 0.413707 0.445065 0.700000
Ni 1.500000
d 1.000000
illum 2
Pr 1.000000
Pm 0.000000
Ps 0.000000
Pc 0.000000
Pcr 0.030000
aniso 0.000000
anisor 0.000000
map_Kd NEEDLE_DIFUSE.jpg

newmtl SILK_LINE_MATERIAL
Kd 0.403407 0.790855 1.000000
Ks 0.500000 0.500000 0.500000
Ke 0.500000 0.500000 0.500000
Ni 1.500000
d 1.000000
illum 2
Pr 1.000000
Pm 0.000000
Ps 0.000000
Pc 0.000000
Pcr 0.030000
aniso 0.000000
anisor 0.000000

newmtl shadow
Ks 0.500000 0.500000 0.500000
Ke 0.000000 0.000000 0.000000
Ni 1.500000
illum 2
Pr 1.000000
Pm 0.000000
Ps 0.000000
Pc 0.000000
Pcr 0.030000
aniso 0.000000
anisor 0.000000
map_Kd shadow_difuse.jpg
map_d shadow_difuse.jpg

i am not referencing dummy.png, so can u please help me with this? i have ubuntu 24.04

[rdm12]

It looks like pymeshlab can't handle textures in JPG format, converting textures to PNG may help.