alteous

I've amended #418 to use a sentinel index value rather than `Option`. This way should work for everyone: it won't break builds, it'll solve the required extension problem, and the...

This should be covered by https://github.com/gltf-rs/gltf/pull/418 now. Please reopen otherwise. :smile:

Thanks for reporting. This model is using [`KHR_mesh_quantization`](https://github.com/KhronosGroup/glTF/blob/main/extensions/2.0/Khronos/KHR_mesh_quantization/README.md) which isn't handled by the reader utility. The extension is marked as required in the example file, so the library ought report...

https://github.com/gltf-rs/gltf/pull/418 will now report an error if the crate can't handle a particular extension, including this one, so I've rebranded this issue as a feature request to add support for...

Hi! This looks like an oversight. We could add an `index` function for each for sure. I worked with animations several years ago in three-rs. The code might be a...

Okay I see this situation is clearly irritating lots of people. I will make the next release 2.0, ensure the semantic versioning applies to the underlying data structures thereon. This...

> It's also important not to have a math library in the public API I agree. If I've understood correctly, this is really the root cause of the issue. I...

This will require some investigation. It could be an issue with the original C algorithm that was patched later (in Blender or otherwise) or it could be been introduced inadvertently...

The CI test failures are unrelated to your change. I'll look into it.

@javagl, noted, the vendor prefix is tentative. Bézier surfaces are a subset of the more general [NURBS](https://en.wikipedia.org/wiki/Non-uniform_rational_B-spline) curves and surfaces proposed in this extension. #1783 mentions NURBS and B-reps but...