Trait Background

pub trait Background: Store {
    // Required method
    fn source(cache: &mut HashSet<u64>) -> String;
}

Background of the scene.

It defines that happens to the ray is it hasn’t hit any object in the scene.

Required Methods

fn source(cache: &mut HashSet<u64>) -> String

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors