Is there anyway to use gltf in constants?

[coolcatcoder]

Not sure if this is the right place to ask, but is there anyway to read/load/open gltf in a constant function?

[alteous]

I'm struggling to think of a reason why one might want to do such a thing. Could you provide a motivating example?

[coolcatcoder]

I cannot provide a motivating example. However I can provide an example lol. What I would wish to do is create a const array of vertices, and a const array of indices, for use with vulkano. Sure I could manually create these by hand, but it would be easier to grab them from gltf in a const function.

[kpreid]

You could use gltf from inside a build script of your package, which can run whatever kind of non-const calculation it wants, and generate Rust code containing constant arrays (either with simple string formatting, or uneval) which can then be included in your main program with include! or mod.

[coolcatcoder]

Ooh that sounds good, thanks for the info!