Register missing types for Camera

[MrGVSV]

What problem does this solve or what need does it fill?

Camera cannot be serialized via reflection due to some missing registrations:

• Missing registration for Option<Viewport>
• Missing ReflectSerialize/ReflectDeserialize type data for Range<f32>

What solution would you like?

• bevy_render's CameraPlugin should register Option<Viewport>.
• bevy_cores CorePlugin should register the ReflectSerialize and ReflectDeserialize type data for Range<f32>

What alternative(s) have you considered?

Users could manually implement these themselves. I don't think that's a good idea, though, as this should really be handled by Bevy since it directly uses those two types.

Additional context

🔗 Discord Help Thread

[NoahShomette]

I cant comment on the idea, however I implemented it if it is a good idea 🤷

[jakobhellermann]

I registered these types in https://github.com/bevyengine/bevy/pull/6061/files, so with that just Reflect{De,}Serialize is missing on Range<f32>. Unless we change Range<f32> to be Struct reflection with start and end?

[MrGVSV]

I registered these types in https://github.com/bevyengine/bevy/pull/6061/files, so with that just Reflect{De,}Serialize is missing on Range<f32>. Unless we change Range<f32> to be Struct reflection with start and end?

You’re saying to register it in bevy_reflect using impl_reflect_struct!? That's a pretty good solution I think. We could do the same for the other range types at the same time. The only weird ones out of the range types are RangeInclusive and RangeFull, which might create some discrepancies (unless we register those as Struct types as well).