when using custom pca model, raise error

[junhwanjang]

libc++abi.dylib: terminating with uncaught exception of type std::runtime_error: The model file you are trying to load is in an old format. Please download the most recent model files.

I trained new custom pca model!(different vertices) but it didn't work on eos-model viewer...
When loading model in python, successful. I don't know why it does..

[patrikhuber]

Hi,
You need to use the same eos version to create the model and when using the model viewer. I suspect in your case the version difference is too large. A few months ago I updated the eos version of the model viewer in this branch: https://github.com/patrikhuber/eos-model-viewer/tree/update-eos-and-igl
If you have any further issues pertaining the model viewer please open an issue in the respective repository. As mentioned in the model-viewer readme, the model-viewer is quite experimental, not very polished code, and "you're on your own" using it. (It works just fine for us overall though, with the occasional hiccup.)

[KangolHsu]

I use eos-py1.0.1 python convert bfm2009 .mat file to bin flie the same error occurs.

[junhwanjang]

eos version 0.15.1 would be a solution.

[patrikhuber]

@KangolHsu I'm not 100% sure I understand what you're doing, as your description is not quite clear. Do you get that error while converting the bfm2009?

If the error occurs in the eos-model-viewer, you can always build the model viewer with the latest eos version? And if it's an issue with the model-viewer, open an issue in that repo?

[KangolHsu]

@patrikhuber
I use the eos-py1.0.1 to convert 01_MorphableModel.mat to the .bin file which eso can be used by eos ,but it is still this error :
"The model file you are trying to load is in an old format. Please download the most recent model files."
When I use old version eos-py0.14.0 to convert it ,it works fine.

[KangolHsu]

when i converted 01_MorphableModel.mat done with eos-py0.14.0
when fit-model-simple.cpp run into this line

eos/include/eos/render/render_affine.hpp

Line 102 in f8b235b

projected_vertices.push_back(

it occurs a read error,because mesh.texcoords is empty ,this is caused by convert script

eos/share/scripts/convert-bfm2009-to-eos.py

Line 51 in f8b235b

model = eos.morphablemodel.MorphableModel(shape_model, color_model, vertex_definitions=None,

"texture_coordinates=[]"
where can i find the texture_coordinates of BFM2009?
thanks.

[KangolHsu]

I solved this by adding texture_coordinates data from the UV coords [here](https://github.com/anilbas/3DMMasSTN/blob/master/util/BFM_UV.mat)

[patrikhuber]

I think maybe the bfm2009 python converter script needs to be updated slightly to pass an empty set of texture coordinates? I'll re-open this, in case something needs updating.