Emscripten - Assimp loading of GLTF Models crashes / throws exception

[NickHardeman]

See this example: (Press '2' or '3' on keyboard to try and load gltf model).
https://nickhardeman.com/temp/OFExamples/ofxAssimpExample/

Maybe related to this issue in Assimp?
https://stackoverflow.com/questions/74982318/assimp-error-when-loading-model-in-the-browser-wasm

[NickHardeman]

I think the check may be fixed via this pull request to Assimp which was merged in 5.3.0
assimp/assimp#5154
Seems to be quite a lot of other fixes as well.
https://github.com/assimp/assimp/releases/tag/v5.3.0

For compiling Assimp for Emscripten for testing quickly on OSX, what might be the easiest approach? Apothecary?
pinging @Jonathhhan :)

[ofTheo]

I think its a simple as downloading 5.3.0 and using the same commands as in apothecary:

https://github.com/openframeworks/apothecary/blob/master/apothecary/formulas/assimp.sh#L201C1-L213C1

not sure if you need the copy files section but here it is :)

        cp -Rv build_emscripten/include/* $1/include
        cp -Rv build_emscripten/lib/libassimp.a $1/lib/$TYPE/libassimp.a

[NickHardeman]

I built for osx and emscripten and it seems to fix the gltf model loading crashes
https://nickhardeman.com/temp/OFExamples/ofxAssimpExample_5.3.1/

[Jonathhhan]

@NickHardeman only the fifth model is not working after the update (it was not working before).

[NickHardeman]

I disabled the last model for emscripten; the payphone; since it loads incorrectly before and still does after the update to 5.3.1

[Jonathhhan]

I disabled the last model for emscripten.

@NickHardeman makes sense, had the same issue.

[NickHardeman]

This pull request to apothecary would use assimp 5.3.1, but it's failing msys2 clang64.
openframeworks/apothecary#296

[NickHardeman]

Closing because the apothecary pull request was merged.