Adding new models: Got this error

[Perzival12]

Hey so for my Hyrule Conquest: Revival mod, I contacted TUN and he sent me his original 3d models. I was hoping to be able to make some variants, as the Deku Kingdom is kind of repetitive, but when I tried to add a model to the game, I got this error: "ERROR: art/meshes/units/deku/deku_baba_spike.dae: assertion not satisfied (line 394): failed requirement 'recognised skeleton structure'". I followed all of the instructions, unwrapping the mesh, selecting the mesh, then the armature, and exporting as a .dae file. Is it because it is not a cached.pmd, or is it some other problem?

[Classic-Burger]

@Stan` @wowgetoffyourcellphone

[Stan`]

Hey @Perzival12 The game automatically detects the skeleton of a DAE, using the files in art/skeleton. If there isn't any matching the structure from your new mesh, it will fail.
I have a python script to generate the skeleton from a given DAE file. https://github.com/StanleySweet/0AD-Skeleton-Generator

 

[Perzival12]

4 hours ago, Stan` said:

Hey @Perzival12 The game automatically detects the skeleton of a DAE, using the files in art/skeleton. If there isn't any matching the structure from your new mesh, it will fail.
I have a python script to generate the skeleton from a given DAE file. https://github.com/StanleySweet/0AD-Skeleton-Generator

 

Thanks, that should help. 

[Perzival12]

Hey, so I fixed that error, but now I have a new problem: all of my new unit models are lying on their backs, half in, half out of the ground. Why? I tried rotating them, but it didn’t change anything. What did I do wrong?

[Stan`]

13 hours ago, Perzival12 said:

Hey, so I fixed that error, but now I have a new problem: all of my new unit models are lying on their backs, half in, half out of the ground. Why? I tried rotating them, but it didn’t change anything. What did I do wrong?

Where is the origin of the models ? https://www.youtube.com/watch?v=SH1ZpxL5_gA

[nifa]

14 hours ago, Perzival12 said:

Hey, so I fixed that error, but now I have a new problem: all of my new unit models are lying on their backs, half in, half out of the ground. Why? I tried rotating them, but it didn’t change anything. What did I do wrong?

Did you use Ctrl - A -> Apply all transforms before exporting?

[Perzival12]

8 hours ago, nifa said:

Did you use Ctrl - A -> Apply all transforms before exporting?

No, I just selected the mesh and armature, rotated it, and then exported it.

[nifa]

4 hours ago, Perzival12 said:

No, I just selected the mesh and armature, rotated it, and then exported it.

does it solve your problem if you do it?

[Perzival12]

Yeah, it does, thank you for the tip! Actually, it turned out I just had to apply the rotation while it was in the standing up position.

[Jackerino]

On 30/09/2025 at 9:53 AM, Stan` said:

Hey @Perzival12 The game automatically detects the skeleton of a DAE, using the files in art/skeleton. If there isn't any matching the structure from your new mesh, it will fail.
I have a python script to generate the skeleton from a given DAE file. https://github.com/StanleySweet/0AD-Skeleton-Generator

Gonna snag this.  This will be very useful!