cgltf VS FBX2glTF

If you want to go all the way, https://learnopengl.com/ is a favorite around here. You could build a glTF viewer from scratch starting from that tutorial and https://github.com/jkuhlmann/cgltf and eventually building towards https://google.github.io/filament/Filament.html or whatever wacky artsy direction you like.

Use https://github.com/jkuhlmann/cgltf to parse the files. https://github.com/ocornut/imgui for your UI. Maybe https://www.libsdl.org/ just to set up a window, handle mouse clicks and initialize the GL context in that window.

Use glTF and https://github.com/jkuhlmann/cgltf Or, looks like you are using C#, so https://github.com/vpenades/SharpGLTF

Do you really have to use fbx? An open format like gltf is better supported, and there are bazillions loaders(I use cgltf without any issues, which is also used by raylib, Unigine and bgfx). It's also a perfect fit for OpenGL.

I recently discovered this pattern in cgltf (https://github.com/jkuhlmann/cgltf), and I agree, it makes deployment so much nicer.

Use https://github.com/jkuhlmann/cgltf It’s the most popular loader.

It's easy to generate a BVH for a generated triangle set (like a fractal pyramid or a dense cube). But, quickly generating a high quality BVH for a loaded model requires some research. Use https://github.com/jkuhlmann/cgltf to load models.

Write a simple glTF viewer in OpenGL. This is a throw-away warm-up. So, don't fret over the code. Don't do anything complicated. Shoot for a simple, forward renderer for a simple, animated character with trivial Phong lighting, diffuse map, normal map and a basic directional shadow map. Use OpenGL ES 3.0/GL 4.3 API with no crazy features. Don't worry about performance. Use https://github.com/jkuhlmann/cgltf to load the files. KTX is a great container for textures.

I've recently done this but not fbx only, was textures and some other asset files. Converted the model to gltf and then loaded it in for an augmented reality app. Just be cautious on load times. I had to compress it using this https://github.com/facebookincubator/FBX2glTF

i use maya to make blendshapes in FBX format then use https://github.com/facebookincubator/FBX2glTF to make the gltf and https://meshoptimizer.org/gltf/ to make the GLB

FBX can be converted to GLTF via this tool https://github.com/facebookincubator/FBX2glTF After convertation import GLTF as usual file

Using this tool (https://github.com/facebookincubator/FBX2glTF) FBX2glTF-linux-x64 on the POLYGON MINI characters I get this output

I found the https://github.com/facebookincubator/FBX2glTF project invaluable as a resource for seeing how to get useful information out of FBX.

I'm using the FBX2glTF found here and this is what I'm getting before the orientation fix;