Type-trait to get scalar type of a nested array type.

[frettini]

Hello everyone,
Does Mitsuba offer a type-trait (or another method) to get the scalar type of a nested array type? For example, I would like to retrieve ScalarVector3f for a given Vector3f. I found drjit's scalar_t type-trait, but this will return the scalar type of the nested array.
If it doesn't exist, is it in practice possible to implement such a trait?
Many thanks.

[njroussel]

Hi @frettini

No, we don't have such a trait currently. This will be improved in an upcoming version though: we'll have a dr.replace_type_t.

For now you'd be stuck with either some hacky python thing like mi.getattr("Scalar" + original_type.__name__) or some extra C++ bindings. Depending on what you need, you might as well just make a big switch statement - there aren't that many possibilites.

[frettini]

Hi @njroussel ,
Thank you for your reply and apologies for the delay. In the end, I went for another approach that didn't necessitate this. Good to know about the changes in the upcoming version though! Thanks